CGL Motors

2

Crompton Greaves Metric Frame Industrial Motors

Features

Cast Aluminium and Cast Iron Frames for

sturdy construction.

S1 to S8 Duty Cycles for all applications.

Special designs for Crane Duty, Machine Tool

Duty, Textile Duty, Rolling Mill Duty etc.

Standards/Approvals

Conforms to IEC 335 for Performance.

Flameproof motors have BASEEFA

(British Approvals Service for Electrical

Equipment in Flammable Atmospheres)

Certification in Frames E100L to E200L

Carry CE Mark for Europe.

From 0.18kW to 25OkW, 2 Poles, 4 Poles,

6 Poles and 8 Poles TEFC, DP, Flame-proof

(Type 'd'), Increased Safety (Type 'e'),

Non-Sparking (Type 'n'), Pressurised

(Type 'p'), Squirrel Cage Rotor and Slip-ring

Motors, in cast aluminium or cast iron

Frames 56 to 355L for 11OV to 66OV,

50/60Hz supply.

Option of variety of mountings, shaft

extensions, thermisters, Space Heaters,

Anti-Corrosive treatment, sealed bearings

etc.

1

CONTENTS PAGE NO.

PRINCIPLES OF INDUCTION MOTORS .............................................................2

TEFC, SQUIRREL CAGE MOTORS .............................................................4

TEFC, SLIPRING MOTORS ............................................................28

DRIP PROOF, SQUIRREL CAGE MOTORS ...........................................................38

DRIP PROOF, SLIPRING MOTORS ............................................................45

SELECTION OF MOTORS ............................................................50

1 Next Page

INDEX

2

N

S

S

C

S

N

N

S

S

N

N

S

N

S

N

S

N

N

S

N

S

S

N S N

NS S

N

S

PRINCIPLES OF INDUCTION MOTOR

MOVEMENT

CURRENTFLOW

INDUCEDEQUIVALENTMAGNET

LOAD

If a magnetic field is cut by a movingconductor, an EMF (voltage) is induced in theconductor. When external circuit is completeda current flows through the conductor.

MOVEMENT

MOVEMENT

CONDUCTOR

MAGNETS

At time 2, poles(A) and (B) haveN polarity. (A) isdecreasing and(B) is increasing.Pole (C) now hasmaximum Spolarity.

At time 3, poles (A)and (C) have Spolarity. Pole (B)has increased tomaximum Npolarity.The patterncontinues to Time 7then begins thecycle again.

TIME 2 TIME 3A A A TIME 4

TIME 4TIME 3 ATIME 2A A

C B C B C B

C B C B C B

PHASE ACURRENT

PHASE CCURRENT

PHASE BCURRENT

Three PhaseAlternatingCurrent

TIME 1 2 3 4 5 6 7A

TIME 1

A current flowing in aconductor produces amagnetic field

The direction ofcurrent flowdetermines thepolarity of theinduced magneticfield.

C B

The magnetic field as it moves to the right, relative to the conductor, induces a current in the conductor. This inducedcurrent produces an induced magnetic field which opposes this relative movement (Lenz's Law). As long as the relativemovement continues a force is produced which will tend to move the conductor to the right (i.e. tending to lift the load).

MAGNETS

Alternating current can be usedto produce a moving magneticfield. 3 phase a.c. applied to fieldcoils as shown, produces arotating magnetic field.

At time 1 the upperpole (A) is at amaximum Npolarity. The lowerpoles have Spolarity: (B) isdecreasing and (C)is increasing (Spolarity).

PRINCIPLES OFINDUCTION MOTOR

2

FORCE OR PULL

ROTATING MAGNETIC FIELD

N

SS

N

3

N S

S N

DIRECTIONOF ROTATING MAGNETIC FIELD

3

The A.C. Induction Motor. Three Phase Speeds

The rotating magnetic field produced by the stator cutsthe rotor bars, producing induced voltages andcurrents. These currents produce a torque in the samedirection as the rotating field. In order to producedriving troque, the magnetic field must cut the rotorbars, hence the rotor always rotates at a lower speedthan the rotating field.

3-Phase connection and Starting

The induced current in the rotor will be maximum atstarting when the relative movement between rotor androtating field is greatest. To prevent damage from thishigh current, the voltage across each stator phase isreduced to 1/ 3 of line voltage by means of a stardelta connection. When the motor has attained fullspeed, full voltage is applied to each phase byswitching from star to delta.

The squirrel cage rotor consists of a cylindrical coreinto which bar conductors are slotted. These are alljoined at their ends to end rings forming a conductingcage.

ROTOR WITHCONDUCTORS

STATOR FIELDCOILS

Typical full load speeds on 50 cycle supply

No. of poles 2 4 6 8 10

Syn. speed RPM(Magnetic field speed)

Full load speed RPM(Rotor speed)

The induction motor consists of two parts; a statorwith field coils remaining stationary on the outside,and a rotor which rotates in the centre producing thedrive. The alternating current in the stator field coilsproduces a rotating magnetic field. This field movingrelative to the rotor cuts the conductors in the rotorthus inducing a current. The induced current producesan induced magnetic field which opposes the relativemovement. This gives rise to a force (torque) on theconductors causing the rotor to rotate in the directionof the magnetic field movement.

ROTOR WITHCONDUCTORS

DIRECTION OF TORQUE

√

PRINCIPLES OFINDUCTION MOTOR

STATOR AND ROTOR

3000 1500 1000 750 600

2900 1440 960 720 580

STAR(STARTING)

DELTA(RUNNING)

STATORFIELDCOILS

4

Motors in frames above 280M have rotor barsof copper or copper alloy, brazed to copper orcopper alloy end-rings. The shaft is of highgrade rolled steel, with drilled and tapped holeprovided at driving end as standard practice.

Rotors are dynamically balanced to complywith the "Normal" requirements of BS 4999."Precision Class" can be offered, if required.

BEARINGS

Motors upto 225M frame are provided withanti-friction double neoprene sealed "greased-for-life" deep groove shielded ball bearingsand higher frames are provided with ball/rollerbearings. The life of the bearings is minimum20,000 hours.

On-line greasing arrangement is provided forframes ND250 and above.

CONNECTIONS

All motors are provided with a stud typeterminal block.

Motors upto 2.2 kW are provided with threeterminals for DOL starting and motors above2.2 kW, are provided with six terminals forStar-Delta starting.

An additional earthing terminal is providedinside the terminal box.

ACCESSORIES

Thermistors and/or space heaters (optional)can be provided for all frames on request.

HARDWARE

All hardware have metric threads and are zincpassivated for corrosion resistance.

TESTS

All Crompton Greaves TEFC SCR inductionmotors are tested in the course ofmanufacture in accordance with IEC and otherinternational standard testing procedures.

SPARES

All motors are built to standardised designsand all spare parts are interchangeable.

SPECIAL FEATURES

Special features such as special shaft, dualvoltage capability, anticorrosive protection,high ambient running, class H insulation,different duty rating, etc can be provided tomeet specific requirements. All details areavailable on request. Additionally, specialframe sizes to suit South African andAustralian requirements are also available.

Pad Mouting feature is provided as requiredfor Air Stream Rated Motors for frames 80 to132.

APPLICATION

Being totally enclosed, these motors aresuitable for almost all applications and inparticular for locations where dust, excessivemoisture, metal chips or other harmfulsubstances make the use of an open motorundesirable.

Dimensions and performance are in accordancewith IEC and other international standards.

ENCLOSURE

All our motors have inherent IP55 degree ofprotection.

INSULATION

All motors are manufactured with Class Finsulation system, but with temperature riserestricted to Class 'B' limits except for specificratings which are duly marked.

CONSTRUCTION

Stator body and endshields from Frame 132upwards are of high grade cast iron. Theseare machined to close tolerances for providingperfect alignment and fits. They are rigid inconstruction. Frames 63, 71, 80, 90, 100L and112M are of high grade diecast aluminium.

Shortly Motors in frames 132 as well, will beavailable in diecast aluminium.

Terminal boxes of frames upto 132M are ofdiecast aluminium. An O-ring is providedbetween the terminal box and cover and agasket between stator and terminal box.Terminal boxes for frames 160 and above are ofcast iron and have flanged joints with suitablegaskets between them. Terminal boxes areprovided with conduit entries having metricthreading, and where required with special Pgthreading suitable for German Pg glands.

Polypropylene fans are provided for frames upto180L and Cast iron/Aluminium fans for all higherframes. The fans are suitable for both directionsof rotation except 280/315 frame, 2 pole motors.

The fan covers are of steel.

All motors have drain holes at their lowest position.

Standard Cast Iron Frame Motors are suppliedwith Terminal Box at left hand side lookingfrom non-driving end. Terminal Box at top canbe supplied on request, for Cast Iron Frame132, while all aluminium frames have TerminalBox on the top as standard.

CORE

Both stator and rotor cores consist of highquality magnetic steel.

ROTOR

All rotors upto 280M are pressure diecast.

TEFCSQUIRREL CAGE

MOTORS

4

5

0.18 0.25 2 AD63 2700 0.55 0.50 64.0 60.0 48.0 0.79 0.72 0.64 500 275 0.001 5.60.18 0.25 4 AD63 1330 0.85 0.75 50.0 46.0 40.0 0.65 0.58 0.47 400 200 0.003 5.6

0.25 0.33 2 AD63 2700 0.75 0.75 64.0 60.0 48.0 0.79 0.72 0.64 500 275 0.001 5.60.25 0.33 4 AD71 1350 1.10 0.90 58.0 53.0 48.0 0.60 0.55 0.49 500 200 0.004 7.0

0.37 0.50 2 AD71 2800 1.1 1.0 65.0 60.0 48.0 0.79 0.72 0.64 500 275 0.002 7.00.37 0.50 4 AD71 1350 1.4 1.2 65.0 58.0 45.0 0.64 0.58 0.48 500 200 0.004 7.00.37 0.50 6 AD80 910 1.3 1.1 64.0 58.0 50.0 0.69 0.60 0.50 400 200 0.011 100.37 0.50 8 AD90S 680 1.6 1.5 60.0 54.0 48.0 0.57 0.50 0.40 400 170 0.016 22

0.55 0.75 2 AD71 2800 1.6 1.5 68.0 64.0 57.0 0.79 0.72 0.61 600 300 0.003 100.55 0.75 4 AD80 1395 1.7 1.5 72.0 67.0 59.0 0.70 0.64 0.58 500 200 0.007 100.55 0.75 6 AD80 910 1.8 1.7 65.0 60.0 52.0 0.71 0.63 0.52 400 200 0.011 100.55 0.75 8 AD90L 680 2.1 1.9 62.0 56.0 46.0 0.63 0.54 0.45 400 170 0.021 25

0.75 1.0 2 AD80 2820 1.9 2.0 75.0 69.0 62.0 0.81 0.73 0.62 600 300 0.003 100.75 1.0 4 AD80 1400 2.2 2.1 74.0 69.0 61.0 0.70 0.65 0.60 500 200 0.007 100.75 1.0 6 AD90S 925 2.4 2.2 69.0 66.0 60.0 0.70 0.63 0.55 500 200 0.015 130.75 1.0 8 AD100L 690 2.8 2.8 65.0 56.0 46.0 0.63 0.54 0.45 400 175 0.030 19

1.10 1.5 2 AD80 *** 2820 2.8 2.5 75.0 72.0 64.0 0.81 0.76 0.68 600 275 0.006 101.10 1.5 2 AD90S 2830 2.6 2.3 77.0 72.0 64.0 0.82 0.76 0.68 600 275 0.006 131.10 1.5 4 AD90S 1410 2.8 2.7 77.0 71.0 63.0 0.77 0.70 0.62 500 200 0.014 131.10 1.5 6 AD90L 925 3.4 3.2 70.0 67.0 62.0 0.71 0.65 0.55 500 200 0.021 161.10 1.5 8 ND100LX 690 3.5 3.6 71.0 66.0 58.0 0.68 0.57 0.44 400 175 0.034 35

1.50 2.0 2 AD90S 2830 3.6 3.2 78.0 73.0 64.0 0.82 0.76 0.68 600 275 0.006 131.50 2.0 4 AD90L 1405 3.7 3.4 77.0 72.0 65.0 0.79 0.72 0.62 500 200 0.019 161.50 2.0 6 AD100L 925 4.1 4.0 75.0 71.0 64.0 0.75 0.68 0.58 500 200 0.030 191.50 2.0 8 ND112MX 700 4.7 4.3 72.0 67.0 60.0 0.68 0.58 0.46 400 190 0.057 45

2.20 3.0 2 AD90L 2830 5.2 4.8 79.0 73.0 66.0 0.82 0.77 0.70 600 275 0.008 162.20 3.0 4 AD100L 1425 5.1 4.8 80.0 75.0 69.0 0.82 0.76 0.68 600 200 0.030 192.20 3.0 6 ND112M 920 5.8 5.5 77.0 74.0 67.0 0.75 0.70 0.60 500 200 0.048 422.20 3.0 8 ND132S 710 6.0 5.7 76.0 71.0 64.0 0.73 0.68 0.61 450 180 0.174 68

3.0 4.0 2 AD100L 2865 6.5 7.3 82.0 79.0 73.0 0.85 0.80 0.72 700 250 0.022 193.0 4.0 4 ND100LX*** 1425 6.9 6.3 81.0 80.0 78.0 0.82 0.76 0.68 600 200 0.034 353.0 4.0 6 ND132S 940 7.0 6.5 82.0 79.0 74.0 0.79 0.75 0.68 500 200 0.174 683.0 4.0 8 ND132M 700 8.3 7.6 78.0 73.0 66.0 0.70 0.66 0.60 500 170 0.214 79

4.0 5.5 2 ND112M 2865 8.5 7.5 81.0 79.0 76.0 0.88 0.84 0.75 650 250 165 62 0.030 424.0 5.5 4 ND112MX*** 1430 9.0 8.5 82.0 81.0 78.0 0.81 0.76 0.69 600 200 150 50 0.052 454.0 5.5 6 ND132M 945 9.3 8.5 83.0 81.0 77.0 0.79 0.75 0.68 550 200 140 50 0.214 794.0 5.5 8 ND160M 710 10.0 9.0 85.0 85.0 83.0 0.74 0.70 0.62 500 200 140 60 0.460 121

5.5 7.5 2 ND132S 2865 11.5 10.5 84.0 82.0 79.0 0.89 0.84 0.76 700 250 175 62 0.062 685.5 7.5 2 ND112MX*** 2860 12.0 11.0 83.0 81.0 78.0 0.87 0.83 0.76 650 250 165 62 0.034 455.5 7.5 4 ND132S 1440 12.0 11.0 85.0 83.0 80.0 0.84 0.79 0.73 600 200 150 50 0.131 685.5 7.5 6 ND132M**** 945 13.1 12.0 83.0 81.0 77.0 0.80 0.75 0.68 550 200 140 50 0.214 795.5 7.5 8 ND160M 710 13.0 12.0 85.0 85.0 83.0 0.74 0.70 0.62 500 200 140 60 0.460 121

7.5 10.0 2 ND132S 2865 15.2 14.0 85.0 84.0 82.0 0.89 0.85 0.76 650 275 165 68 0.062 687.5 10.0 4 ND132M 1440 15.8 14.5 86.0 85.0 84.0 0.85 0.81 0.75 600 200 150 50 0.161 797.5 10.0 6 ND160M 970 16.0 15..0 87.0 87.0 86.0 0.80 0.76 0.68 550 225 155 65 0.460 1217.5 10.0 8 ND160L 710 18.0 16..0 85.0 85.0 83.0 0.76 0.72 0.64 500 200 140 60 0.640 143

9.3 12.5 2 ND132M*** 2880 18.5 17.0 86.0 85.0 84.0 0.89 0.85 0.78 700 240 180 60 0.076 799.3 12.5 2 ND160M 2920 18.0 16.5 87.0 87.0 85.0 0.88 0.86 0.78 650 250 185 75 0.13 1219.3 12.5 4 ND160M 1460 19.0 17.5 88.0 88.0 86.0 0.85 0.81 0.73 600 225 170 65 0.31 1219.3 12.5 6 ND160L 970 20.0 18..5 88.0 88.0 85.0 0.80 0.76 0.68 550 225 155 65 0.59 1439.3 12.5 8 ND180M 710 22.0 20..0 86.0 86.0 84.0 0.76 0.72 0.64 500 200 140 60 0.99 182

3/4 1/2 3/4 1/2 STG. C STG. T STG. C STG. TFL FL FL FL %FLC %FLT % FLC % FLT

POLE

OUTPUT

kW HP

NETTWEIGHT

Kg.

FL FLAMPS AMPS380 V 415 V FL FL

PERFORMANCE DATA

Supply : 415 V or 380V, 50 Hz, 3 Phase AC

Enclosure : Totally Enclosed Fan Cooled (TEFC)

Degree of Protection : IP55

Rating: Continuous, Duty : S1

Insulation Class : ‘F’

Voltage Variation : ± 10%

Frequency Variation : ± 5%

Combined Variation : ± 10%

Ambient : 45°C

Temperature Rise by Resistance Method : 75°C Max.

5

TEFCSQUIRREL CAGE

MOTORS

FL GD²RPM KgM²FRAME

EFFICIENCY (%) POWER FACTOR DOL STG. S/D STG.

6



11.0 15.0 2 ND160M 2920 22.0 20.0 88.0 88.0 86.0 0.88 0.86 0.78 650 250 185 75 0.13 12111.0 15.0 4 ND160M 1460 22.0 20.0 89.0 89.0 86.0 0.85 0.82 0.74 600 225 170 65 0.36 12111.0 15.0 6 ND160L 970 24.0 21.5 88.5 88.5 86.5 0.80 0.76 0.68 550 225 155 65 0.64 14311.0 15.0 8 ND180L 710 25.0 23.0 87.0 87.0 85.0 0.77 0.73 0.65 500 200 140 60 1.16 204

15.0 20.0 2 ND160M 2920 29.0 26.5 89.5 89.5 87.5 0.88 0.86 0.79 650 250 185 75 0.17 12115.0 20.0 4 ND160L 1460 29.0 27.0 90.0 90.0 88.0 0.86 0.83 0.75 600 225 170 65 0.47 14315.0 20.0 6 ND180L 955 30.0 28.0 89.0 89.0 87.0 0.84 0.82 0.73 600 250 170 75 1.16 20415.0 20.0 8 ND200L 725 36.0 33.0 88.5 88.5 86.5 0.71 0.65 0.55 500 225 140 65 2.15 254

18.5 25.0 2 ND160L 2920 35.0 33.0 90.0 90.0 88.0 0.88 0.86 0.79 650 250 185 75 0.21 14318.5 25.0 4 ND180M 1465 36.0 33.0 91.0 91.0 89.5 0.86 0.84 0.77 600 225 170 65 0.81 17418.5 25.0 6 ND200L 975 37.0 34.0 91.1 91.1 89.9 0.84 0.82 0.73 550 250 155 75 1.69 25418.5 25.0 8 ND225S 725 42.0 39.0 89.0 89.0 87.0 0.75 0.71 0.63 500 180 140 50 3.24 350

22.0 30.0 2 ND180M 2920 40.0 37.0 91.0 91.0 89.0 0.92 0.92 0.84 650 275 185 85 0.44 17422.0 30.0 4 ND180L 1465 42.0 39.0 91.0 91.0 89.5 0.87 0.84 0.77 600 225 170 65 0.95 20422.0 30.0 6 ND200L 975 43.0 40.0 91.5 91.5 90.1 0.84 0.82 0.73 550 225 155 65 2.02 25422.0 30.0 8 ND225M 725 50.0 46.0 89.0 89.0 87.0 0.75 0.71 0.63 500 250 140 75 3.61 380

30.0 40.0 2 ND200L 2940 55.0 51.5 91.5 91.5 90.0 0.91 0.89 0.87 650 225 185 65 0.79 25430.0 40.0 4 ND200L 1475 56.0 51.0 92.0 92.0 90.2 0.89 0.86 0.78 600 250 170 75 1.70 25430.0 40.0 6 ND225M 975 58.0 53.0 92.0 92.0 90.5 0.85 0.82 0.73 550 200 155 60 3.61 38030.0 40.0 8 ND250S ** 735 67.0 61.5 90.5 90.5 88.5 0.75 0.71 0.63 550 200 155 60 6.36 46030.0 40.0 8 ND250M 735 67.0 61.5 90.5 90.5 88.5 0.75 0.71 0.63 550 200 155 60 6.36 500

37.0 50.0 2 ND200L 2940 67.0 61.0 92.5 92.5 91.6 0.91 0.89 0.87 650 225 185 65 0.89 25437.0 50.0 4 ND225S 1475 68.0 62.0 92.5 92.5 91.6 0.90 0.89 0.80 600 250 170 75 2.64 35037.0 50.0 6 ND250S ** 980 72.0 66.0 93.0 93.0 92.0 0.84 0.81 0.72 600 250 170 75 4.82 46037.0 50.0 6 ND250M 980 72.0 66.0 93.0 93.0 92.0 0.84 0.81 0.72 600 250 170 75 4.82 50037.0 50.0 *8 ND250M ** 735 83.0 76.0 90.5 90.5 88.5 0.75 0.71 0.63 550 200 140 60 6.36 50037.0 50.0 8 ND280S 735 81.0 75.0 91.5 91.5 89.5 0.76 0.71 0.63 500 210 140 60 8.01 620

45.0 60.0 2 ND225M 2950 80.0 74.0 92.5 92.5 91.1 0.92 0.90 0.88 650 225 185 65 1.87 38045.0 60.0 4 ND225M 1475 82.0 75.0 93.0 93.0 91.5 0.90 0.89 0.80 600 250 170 75 3.11 38045.0 60.0 *6 ND250M ** 980 88.0 80.0 93.0 93.0 92.0 0.84 0.81 0.72 600 250 170 75 6.36 50045.0 60.0 6 ND280S 980 86.0 79.0 93.0 93.0 91.9 0.85 0.82 0.73 550 250 155 75 8.01 62045.0 60.0 8 ND280S ** 740 99.0 91.0 92.0 92.0 90.5 0.75 0.71 0.63 500 210 140 60 9.89 70045.0 60.0 8 ND280M 740 99.0 91.0 92.0 92.0 90.5 0.75 0.71 0.63 500 210 140 60 9.89 700

55.0 75.0 2 ND250S ** 2950 100.0 92.0 92.5 92.5 90.5 0.90 0.86 0.78 600 180 170 50 2.79 46055.0 75.0 2 ND250M 2950 100.0 92.0 92.5 92.5 90.5 0.90 0.86 0.78 600 180 170 50 2.79 50055.0 75.0 4 ND250S ** 1475 104.0 95.0 93.5 93.5 92.0 0.86 0.82 0.74 600 250 170 75 3.45 46055.0 75.0 4 ND250M 1475 104.0 95.0 93.5 93.5 92.0 0.86 0.82 0.74 600 250 170 75 3.45 50055.0 75.0 6 ND280S ** 980 104.0 95.0 93.5 93.5 92.5 0.86 0.82 0.74 600 200 170 60 8.01 62055.0 75.0 6 ND280M 980 104.0 95.0 93.5 93.5 92.5 0.86 0.82 0.74 600 200 170 60 9.89 70055.0 75.0 *8 ND280M ** 740 121.0 111.0 92.0 92.0 90.5 0.75 0.71 0.63 500 175 140 60 9.89 70055.0 75.0 8 ND315S 740 116.0 106.0 92.5 92.5 91.0 0.78 0.74 0.66 600 200 170 60 14.12 1056

75.0 100.0 *2 ND250M ** 2950 134.0 123.0 92.5 92.5 90.5 0.92 0.88 0.80 600 180 170 50 2.79 50075.0 100.0 2 ND280S 2960 135.0 124.0 93.5 93.5 92.0 0.90 0.86 0.78 600 225 170 65 6.63 62075.0 100.0 *4 ND250M ** 1475 142.0 130.0 93.5 93.5 92.0 0.86 0.82 0.74 600 250 170 75 3.45 50075.0 100.0 4 ND280S 1480 136.0 125.0 94.0 94.0 92.5 0.89 0.87 0.85 600 250 170 75 7.21 62075.0 100.0 *6 ND280M ** 980 142.0 130.0 93.5 93.5 92.5 0.86 0.82 0.74 600 200 155 75 9.89 70075.0 100.0 6 ND315S 980 141.0 129.0 94.0 94.0 92.5 0.86 0.82 0.74 600 225 170 65 14.12 105675.0 100.0 8 ND315S ** 740 157.0 144.0 93.0 93.0 91.5 0.78 0.74 0.66 600 200 140 60 14.57 105675.0 100.0 8 ND315M 740 157.0 144.0 93.0 93.0 91.5 0.78 0.74 0.66 600 200 170 60 18.98 1130

90.0 120.0 2 ND280S ** 2960 162.0 148.0 94.0 94.0 92.5 0.90 0.86 0.78 600 250 170 75 8.18 70090.0 120.0 2 ND280M 2960 162.0 148.0 94.0 94.0 92.5 0.90 0.86 0.78 600 250 170 75 8.18 70090.0 120.0 4 ND280S** 1480 161.0 147.0 94.5 94.5 93.0 0.90 0.88 0.86 600 250 170 75 7.21 62090.0 120.0 4 ND280M 1480 161.0 147.0 94.5 94.5 93.0 0.90 0.88 0.86 600 250 170 75 8.25 70090.0 120.0 6 ND315S ** 985 169.0 155.0 94.2 94.2 93.0 0.86 0.82 0.74 600 250 170 75 12.89 105690.0 120.0 6 ND315M 985 169.0 155.0 94.2 94.2 93.0 0.86 0.82 0.74 600 225 170 65 17.00 113090.0 120.0 *8 ND315M ** 740 187.0 171.0 94.0 94.0 92.0 0.78 0.74 0.66 600 250 170 60 18.97 113090.0 120.0 8 ND315L 740 187.0 171.0 94.0 94.0 92.0 0.78 0.74 0.66 600 250 170 60 29.94 1200

PERFORMANCE DATA (Continued)


POLE

OUTPUT

kW HP

NETTWEIGHT

Kg.FL FL

FL FLAMPS AMPS380 V 415 V

TEFCSQUIRREL CAGE

MOTORS

6

7

NETTWEIGHT

Kg.



110.0 150.0 *2 ND280M ** 2960 200.0 183.0 93.0 93.0 91.0 0.90 0.86 0.78 600 225 170 65 8.18 700110.0 150.0 2 ND315S 2970 193.0 177.0 94.0 94.0 92.5 0.92 0.86 0.78 600 200 170 60 11..55 1056110.0 150.0 *4 ND280M ** 1480 197.0 180.0 94.5 94.5 93.0 0.90 0.88 0.86 600 250 170 75 8.26 700110.0 150.0 4 ND315S 1488 197.0 180.0 94.5 94.5 92.0 0.90 0.88 0.86 600 225 170 65 11..62 1056110.0 150.0 6 ND315M 985 206.0 189.0 94.5 94.5 93.5 0.86 0.82 0.74 600 225 170 65 18.98 1130110.0 150.0 *8 ND315M ** 740 228.0 209.0 94.0 94.0 92.0 0.78 0.74 0.66 600 250 170 60 18.97 1130110.0 150.0 8 ND315L 740 228.0 209.0 94.0 94.0 92.5 0.78 0.74 0.66 600 250 170 75 29.94 1200

132.0 175.0 2 ND315S ** 2970 236.0 216.0 94.5 94.5 93.0 0.90 0.86 0.78 650 250 185 75 13..89 1130132.0 175.0 2 ND315M 2970 236.0 216.0 94.5 94.5 93.0 0.90 0.86 0.78 650 250 185 75 13.89 1130132.0 175.0 4 ND315S ** 1488 229.0 210.0 95.0 95.0 94.0 0.92 0.90 0.88 600 225 170 75 11..62 1056132.0 175.0 4 ND315M 1488 229.0 210.0 95.0 95.0 94.0 0.92 0.90 0.88 600 225 170 75 13.98 1130132.0 175.0 *6 ND315M ** 985 248.0 227.0 94.0 94.0 93.0 0.86 0.82 0.74 600 225 170 65 18.98 1130132.0 175.0 6 ND315L 985 247.0 226.0 94.5 94.5 93.5 0.86 0.82 0.74 600 250 170 75 29.94 1200132.0 175.0 8 ND315L 740 272.0 250.0 94.5 94.5 92.5 0.78 0.74 0.66 600 225 170 65 33.28 1200

160.0 215.0 *2 ND315M ** 2970 281.0 241.0 94.0 94.0 93.0 0.92 0.86 0.78 650 250 185 75 13..89 1130160.0 215.0 2 ND315L 2980 272.0 249.0 95.0 95.0 93.5 0.94 0.92 0.90 650 200 185 60 14.30 1200160.0 215.0 *4 ND315M** 1488 280.0 210.0 94.5 94.5 93.0 0.92 0.90 0.88 600 225 170 75 13..98 1130160.0 215.0 4 ND315L 1485 283.0 260.0 95.3 95.3 94.0 0.90 0.86 0.78 600 250 170 75 27.88 1200160.0 215.0 6 ND315L 990 299.0 274.0 94.5 94.5 93.5 0.86 0.82 0.74 600 250 170 75 29.94 1200160.0 215.0 8 ND355L 740 321.0 297.0 94.8 92.5 89.5 0.8 0.74 0.6 600 150 170 40 57.28 2150

200.0 270.0 2 ND315L 2980 339.0 310.0 95.5 95.5 94.0 0.94 0.92 0.90 650 200 170 60 17.82 1200200.0 270.0 4 ND315L 1485 354.0 324.0 95.5 95.5 94.0 0.90 0.86 0.78 600 250 170 75 33.48 1200200.0 270.0 6 ND355L 991 378.0 346.0 94.5 93.5 91.0 0.85 0.81 0.72 600 165 170 45 57.28 2125

225.0 302.0 2 ND355L 2982 395.0 362.0 94.0 93.0 90.0 0.92 0.89 0.82 650 150 185 40 21.63 1885225.0 302.0 4 ND355L 1490 414.0 380.0 94.8 94.0 91.5 0.87 0.82 0.73 600 175 170 50 38.75 2050225.0 302.0 6 ND355L 991 426.0 390.0 94.5 93.5 91.0 0.85 0.81 0.72 600 165 170 45 57.28 2125

250.0 335.0 2 ND355L 2978 437.0 400.0 94.5 93.5 90.1 0.92 0.89 0.82 650 150 185 40 23.56 1885250.0 335.0 4 ND355L 1490 462.0 423.0 94.5 93.5 91.0 0.87 0.82 0.73 600 175 170 50 42.21 2050250.0 335.0 6 ND355L 991 473.0 433.0 94.5 93.5 91.0 0.85 0.81 0.72 600 165 170 45 57.28 2125

TEFCSQUIRREL CAGE

MOTORS



POLE

OUTPUT

kW HP FL FL


7

** These Frames are for AustralianStandards AS1359 / AS1360 or SouthAfrican Standard SABS 948 Part I-1978.

* These outputs have Class ‘F’ temperaturerise.

The above data is subject to tolerance asper the applicable standard.

FL - Full Load, STG - Starting, C - Current,T - Torque, DOL - Direct on Line,S/D-Star/Delta

8

AD63D 5.6 7.5 275 175 220 0.0106AD71D 7.0 9.0 325 210 240 0.0164AD80D 10.0 13.0 385 290 250 0.0279

AD90SD 15.0 19.0 425 305 275 0..0356AD90LD 18.0 22.0 425 305 275 0.0356AD100LD 21.0 26.0 430 330 315 0.0447

ND100LXD 37.0 42.0 430 330 315 0.0447ND112MD 45.0 45.0 72.0 51.0 555 480 445 360 405 325 0.1000 0.0562

ND112MXD 48.0 48.0 75.0 54.0 555 480 445 360 405 325 0.1000 0.0562ND132SD 71.0 71.0 108.0 79.0 660 530 490 400 465 380 0.1504 0.0806ND132MD 82.0 82.0 119.0 91.0 660 585 490 400 465 380 0.1504 0.0889

ND160MD 127 204 865 630 665 0.362ND160LD 148 225 865 630 665 0.362ND180MD 181 258 865 630 665 0.362ND180LD 215 292 865 630 665 0.362ND200LD 258 406 1065 885 840 0.792ND225SD 363 511 1065 885 840 0.792ND225MD 393 541 1065 885 840 0.792ND250SD 461 705 990 900 1245 1.109ND250MD 507 745 990 900 1245 1.109ND280SD 620 898 1070 1070 1430 1.637ND280MD 700 978 1070 1070 1430 1.637ND315SD 1086 1424 1280 1210 1545 2.393ND315MD 1160 1498 1280 1210 1545 2.393ND315LD 1200 1624 1850 1450 1275 3.420

DIMENSIONS

AD63 5.6 7.5 235 155 205 0.0075AD71 7.0 9.0 275 175 220 0.0106

AD80 10.0 13.0 325 210 240 0.0164AD90S 13.0 17.0 375 220 290 0.0239AD90L 16.0 20.0 375 220 290 0.0239AD100L 19.0 24.0 400 245 305 0.0299

ND100LX 35.0 40.0 425 305 275 0.0356ND112M 42.0 42.0 59.0 48.0 525 480 410 360 355 325 0.0764 0.0562

ND112MX 45.0 45.0 62.0 51.0 525 480 410 360 355 325 0.0764 0.0562ND132S 68.0 68.0 92.0 76.0 625 550 445 400 410 380 0.1140 0.0836ND132M 79.0 79.0 103.0 88.0 625 550 445 400 410 380 0.1140 0.0836

ND160M 121 179 750 585 545 0.239ND160L 143 209 820 585 545 0.261ND180M 174 250 875 705 585 0.361ND180L 204 280 875 705 585 0.361ND200L 254 366 1025 825 700 0.592ND225S 350 462 1025 825 700 0.592ND225M 380 492 1025 825 700 0.592ND250S 460 586 1150 845 710 0.690ND250M 500 628 1150 845 710 0.690ND280S 620 766 1300 915 745 0.886ND280M 700 846 1300 915 745 0.886ND315S 1056 1319 1600 1170 925 1.732ND315M 1130 1393 1600 1170 925 1.732ND315L 1200 1475 1700 1170 940 1.870ND355L 2150 2553 1900 1375 1325 3.462

NETT WEIGHT GROSS WEIGHT VOLUMEKG KG L IN MM B IN MM H IN MM CUBIC METRES

Wooden Carton Wooden Carton Wooden Carton Wooden Carton Wooden Carton Wooden CartonFRAME

TEFCSQUIRREL CAGE

MOTORS

SHIPPING SPECIFICATIONS

FOOT MOUNTED MOTORS

FLANGE MOUNTED MOTORS



8

DIMENSIONS

9

TEFCSQUIRREL CAGE

MOTORS

FOOT MOUNTED MOTORS WITH TERMINALBOX ON TOP

SHIPPING SPECIFICATIONS (Continued)

ND160M 121 184 875 525 600 0.276ND160L 143 206 875 525 600 0.276ND180M 174 246 930 630 645 0.378ND180L 204 276 930 630 645 0.378ND200L 254 368 1275 725 790 0.730ND225S 350 464 1275 725 790 0.730ND225M 380 494 1275 725 790 0.730ND250S 460 601 1450 785 890 1.013ND250M 500 641 1450 785 890 1.013ND280S 620 761 1450 785 890 1.013ND280M 700 841 1450 785 890 1.013ND315S 1056 1306 1730 920 1065 1.695ND315M 1130 1380 1730 920 1065 1.695ND315L 1200 1480 1830 1000 1115 2.040



9

DIMENSIONS

The standard packing is in carton whenavailable, alternatively it is wooden.

The carton packing is for full containershipment.

The shipping specifications for facemounting motors would be similar to thoseof flange mounting motors.

10

DIMENSIONS OF FOOT MOUNTING MOTORSIN ALUMINIUM FRAMES AD63 AND AD71

A B C H AA AB BA BB K HA D E ED F G GA GD GE X Y × Depth AC L HD KK

AD63 100 80 40 63 25.5 122 – 96 7 9 11 23 18 4 8.5 12.5 4 2.5 2..5 M4×10 125 210 160 3/4"

AD71 112 90 45 71 30 136 – 110 7 9 14 30 25 5 11 16 5 3 2.5 M5×12.5 145 250 175 3/4"

OVERALL (MAX. )SHAFT AND KE YFOOT FIXINGFRAME

3 TO 6

UP TO 28

3 TO 6

3 TO 6

+ 0.0– 0.5

+ 0.008– 0.003

H –

D j6

GE –

KEY

CENTRE HEIGHT

SHAFT

+ 0.1

– 0.0

KEYWAY

F N9

ED –

F h9

h9GD

TOLERANCE

ON GRADE RANGE TOLERANCE ON GRADE RANGE TOLERANCE

TEFCSQUIRREL CAGE

MOTORS

ALL

11 TO 18

UP TO 3.5

+ 0.0– 0.030

+ 0.2– 0.0

+ 0.0– 0.030

+ 0.0– 0.030

1. All dimensions are in mm, unless specified.2. Cable entries can be rotated through 360° in

steps of 90°.3. Compression type cable glands can be fitted

when specified.4. All dimensions are subject to confirmation.

Certified Drawings will be sent on request.

G

GA

F

D

GE

GD

Y

TAPPED HOLE

× DEPTH

N9/h9

H

HD

HAA

AB

AA

Ø AC

4 HOLES

DIAK

E

ED

E

ED

C B

BB

BA

L

CABLE ENTRYSCREWED FORKK BS CONDUIT FORCABLE GLAND

D D

X X

11

F N9

ED –

F h9

h9

DIMENSIONS OF FLANGE MOUNTING MOTORSIN ALUMINIUM FRAMES AD63 AND AD71

TOLERANCE

UP TO 265

95 TO 110

11 TO 18

UP TO 3.5

M –

N j6

D j6

GE –

ON GRADE RANGE TOLERANCE

SPIGOT

P.C.D.

± 0.03

+ 0.013– 0.009

+ 0.008– 0.003

SHAFTKEY

KEYWAY

GD





+ 0.1– 0.0

M N P R S T LA D E ED F G GA GD GE X Y×Depth AC L LB HB KK

AD63D 115 95 140 0 10 3 9 11 23 18 4 8.5 12.5 4 2.5 2.5 M4×10 125 220 197 100 3/4 ''

AD71D 130 110 160 0 10 3.5 9 14 30 25 5 11 16 5 3 2.5 M5×12.5 145 250 220 105 3/4 ''

FLANGE FIXINGFRAME

SHAFT AND KEY OVERALL (MAX.)


TEFCSQUIRREL CAGE

MOTORS

3 TO 6

UP TO 28

3 TO 6

3 TO 6

+ 0.0– 0.030

+ 0.2– 0.0

+ 0.0– 0.030

+ 0.0– 0.030

G

F

Y

N9/h9

D

GE

GA

TAPPED HOLE

X DEPTH

GD

EQUALLY SPACED ON

HB

45°

PS4 HOLES DRILLED Ø

M DIA. CIRCLE

CABLE ENTRYSCREWED FOR KKBS CONDUIT FORCABLE GLAND

NØSPIGOT

T

D

LA

E

R

X ED

LB

L

X

E

ED

Ø AC

D

12

DIMENSIONS OF FACE MOUNTING MOTORSIN ALUMINIUM FRAMES AD63 AND AD71





3 TO 6

UP TO 28

3 TO 6

3 TO 6

UP TO 165

50 TO 80

11 TO 18

UP TO 3.5

M –

N j6

D j6

GE –

F N9

ED –

F h9

h9

KEY


± 0.3

+ 0.012– 0.007

+ 0.008– 0.003

KEYWAY

GD

M N P R S T LA D E ED F G GA GD GE X Y×Depth AC L LB HB KK

AD63C 75 60 90 0 M5 2.5 8 11 23 18 4 8.5 12.5 4 2.5 2.5 M4×10 125 220 197 100 3/4''

AD71C 85 70 105 0 M6 2.5 10 14 30 25 5 11 16 5 3 2.5 M5×12.5 145 250 215 105 3/4''

FACE FIXING SHAFT AND KEY OVERALL (MAX.)FRAME

P.C.D.

SPIGOT

SHAFT


TEFCSQUIRREL CAGE

MOTORS

+ 0.1– 0.0

+ 0.0– 0.030

+ 0.2– 0.0

+ 0.0– 0.030

+ 0.0– 0.030

TOLERANCE

GE

F

D

GA

G

YTAPPED HOLE

× DEPTH

GD

N9/h9

45°

HB

Ø P

4 HOLES TAPPED S Ø × LA DEEP EQUALLYSPACED ON M DIA CIRCLE

X ED

R

L

LB

CABLE ENTRYSCREWED FORKK BS CONDUITFOR CABLE GLAND

ED X

Ø AC

EE

T

NØSPIGOT DD

13





DIMENSIONS OF FOOT MOUNTING MOTORSIN ALUMINIUM FRAME AD80

H –

D

GE –

GD

SHAFT

ALL

19 TO 28

UP TO 3.5

+ 0.0– 0.5

+ 0.009– 0.004

+ 0.1

- 0.0


TOLERANCE

F N9

ED –

F h9

h9

KEY

A B C H AA AB BA BB K V HA D E ED F G GA GD GE Y×Depth AC L HD KK

AD 80 125 100 50 80 28 152 35 125 10 14 11 19 40 27 6 15.5 21.5 6 3.5 M6×16 165 285 200 3/4"

FOOT FIXINGFRAME

OVERALL (MAX.)


KEYWAYCENTRE HEIGHT

TEFCSQUIRREL CAGE

MOTORS

SHAFT AND KEY

j6

3 TO 6

UP TO 28

3 TO 6

3 TO 6

+ 0.0– 0.030

+ 0.2– 0.0

+ 0.0– 0.030

+ 0.0– 0.030

GA

G

D

GD

GE

F

Y

TAPPED HOLE

× DEPTH

N9/h9

L

ED

E C B

BB

ED

EBA


D D

Ø K

4 SLOTTEDHOLES ØK × VLONG

V

AB

AAA

HA

H

HD

Ø AC

14

F N9

ED –

F h9

h9

± 0.3

+ 0.014– 0.011

+ 0.009– 0.004

DIMENSIONS OF FLANGE MOUNTING MOTORSIN ALUMINIUM FRAME AD80

UP TO 265

120 TO 180

19 TO 28

UP TO 3.5

M –

N j6

D

GE –

KEY

KEYWAY

GD

TOLERANCE


SPIGOT

P.C.D.

SHAFT

M N P R S T LA D E ED F G GA GD GE Y×Depth AC L LB HB KK

AD80D 165 130 200 0 12 3.5 10 19 40 27 6 15.5 21.5 6 3.5 M6×16 165 285 245 120 3/4 "

OVERALL (MAX. )SHAFT AND KE YFLANGE FIXINGFRAME


TEFCSQUIRREL CAGE

MOTORS

j6

+ 0.1- 0.0





3 TO 6

UP TO 28

3 TO 6

3 TO 6

+ 0.0– 0.030

+ 0.2– 0.0

+ 0.0– 0.030

+ 0.0– 0.030

GD

GE

F

D

GA

G

Y

TAPPED HOLE

× DEPTH

N9/h9HB

P 45°

4 HOLES DRILLED S DIA

EQUALLY SPACED ON MDIA CIRCLE

NØ

SPIGOT

L

LB

T LA

ED

E

Ø AC

ED

CABLE ENTRYSCREWED FOR KKBS CONDUIT FORCABLE GLAND

RE

D D

15

DIMENSIONS OF FACE MOUNTING MOTORSIN ALUMINIUM FRAME AD80

KEYWAY

± 0.3

+ 0.012– 0.007

+ 0.009– 0.004


SHAFT

UP TO 265

50 TO 80

19 TO 28

UP TO 3.5

M –

N j6

D

GE –

j6

KEY

F N9

ED –

F h9

h9GD

M N P R S T LA D E ED F G GA GD GE Y×Depth AC L LB HB KK

AD80C 100 80 120 0 M6 3 15 19 40 27 6 15.5 21.5 6 3.5 M6×16 165 285 245 120 3/4 "

OVERALL (MAX. )SHAFT AND KE YFACE FIXINGFRAME

P.C.D.

SPIGOT

TOLERANCE


+ 0.1– 0.0

TEFCSQUIRREL CAGE

MOTORS

3 TO 6

UP TO 28

3 TO 6

3 TO 6

+ 0.0– 0.030

+ 0.2 – 0.0

+ 0.0– 0.030

+ 0.0– 0.030





GD

GE

F

D

GA

G

Y

TAPPED HOLE

× DEPTH

N9/h9

NØ

SPIGOT

R

ED

LB

LCABLE ENTRYSCREWED FORKK BS CONDUITFOR CABLE GLAND

ED

Ø AC

E

E

T

D D

HB

45°

P

4 HOLES TAPPED Ø S ×LA DEEP

EQUALLY SPACED ON M DIA CIRCLE

16

DIMENSIONS OF FOOT MOUNTING MOTORSIN ALUMINIUM FRAMES AD90 AND AD100

A B C H AA AB BA BB ØK V HA D E ED F G GA GD GE Y×Depth AC L HD KK

140 56 90 40 170 30 10 15 13 24 50 36 8 20 27 7 4 M8×19 190 230 1"

AD100L 160 140 63 100 48 192 35 170 12 16 13 28 60 44 8 24 31 7 4 M10×22 205 360 250 1"

OVERALL (MAX.)

AD90S

AD90L

FRAME

100

125

KEYWAYCENTRE HEIGHT

SHAFT

H –

D

GE –

ALL

19 TO 28

4 & ABOVE

+ 0.0– 0.5

+ 0.009– 0.004

j6

F N9

ED –

F h9

h11

KEY

GD

+ 0.0– 0.036

+ 0.3– 0.0

+ 0.0– 0.030

+ 0.0– 0.090


TEFCSQUIRREL CAGE

MOTORS

126

151

310

335

TOLERANCE

FOOT FIXING SHAFT AND KEY

+ 0.2– 0.0

8 TO 10

32 TO 80

8 TO 10

7 TO 10





D

G

GA

F

GE

GD

Y

TAPPED HOLE

× DEPTH

N9/h9

HA

A

AA

AB

4 SLOTTEDHOLESØK × V LONG

Ø AC

HD

H


ED

E C B

BB

BA

L

D D

ED

E

17

UP TO 265

120 TO 180

19 TO 28

4 & ABOVE+ 0.2

– 0.0

M –

N j6

D

GE –

DIMENSIONS OF FLANGE MOUNTING MOTORSIN ALUMINIUM FRAMES AD90 AND AD100

8 TO 10

32 TO 80

8 TO 10

7 TO 10

PCD

± 0.3

+ 0.014– 0.011

+ 0.009– 0.004

F N9

ED –

F h9

h11

KEY

GD

TOLERANCE


AD90SD

AD90LD

260

285

310

335

+ 0.0– 0.036

+ 0.3– 0.0

+ 0.0– 0.030

+ 0.0– 0.090

KEYWAY






TEFCSQUIRREL CAGE

MOTORS

GD

GE

F

D

GA

G

Y

TAPPED HOLE

× DEPTH

N9/h9

4 HOLES DRILLEDØ S EQUALLY SPACEDON M DIA. CIRCLE

AD

45°

P

ED

Ø

E R

L

T LAEARTHING HOLE ONBOTH SIDES OF MOTORBODY

LB

Ø AC


SPIGOTN

D D

ED

E

SHAFT

SPIGOT

j6

M N P R S T LA D E ED F G GA GD GE Y×Depth AD AC L LB KK

165 130 200 0 12 3.5 10 24 50 36 8 20 27 7 4 M8×19 140 190 1"

AD100LD 215 180 250 0 15 4 11 28 60 44 8 24 31 7 4 M10×22 150 205 360 300 1"

18

DIMENSIONS OF FACE MOUNTING MOTORSIN ALUMINIUM FRAMES AD90 AND AD100

M N P R S T LA D E ED F G GA GD GE Y×Depth AD AC L LB KK

115 95 140 0 M8 3 10 24 50 36 8 20 27 7 4 M8×19 140 190

AD100 LC 130 110 160 0 M8 3.5 10 28 60 44 8 24 31 7 4 M10×22 150 205 360 300

FLANGE FIXING OVERALL (MAX.)SHAFT AND KEY

AD90SCAD90LC 1"

1"

FRAME

8 TO 10

32 TO 80

8 TO 10

7 TO 10

+ 0.0– 0.036

+ 0.3– 0.0

+ 0.0– 0.030

+ 0.0– 0.090

UP TO 265

80 TO 120

19 TO 28

4 & ABOVE

M –

N j6

D

GE –

F N9

ED –

F h9

h11

KEY


± 0.3

+ 0.013– 0.009

+ 0.009– 0.004

j6

KEYWAY

GD

P.C.D.

SPIGOT

SHAFT


TOLERANCE

TEFCSQUIRREL CAGE

MOTORS

+ 0.2– 0.0





260285

310335

GD

GE

G

GA

D

F

Y

TAPPED HOLE

× DEPTHN9/h9

L

T

SPIGOTØ

ED

E


Ø AC

EARTHING HOLE ON BOTHSIDES OF MOTOR BODY

LB

N

R

D D

ED

EAD

45°

Ø P

4 HOLES TAPPED S × LA DEEPEQUALLY SPACED ON M DIA CIRCLE

19

DIMENSIONS OF FOOT MOUNTING MOTORSIN FRAMES ND90 TO ND132

A B C H AA AB BA BB K HA D E ED F G GA GD GE Y×Depth AD AC L HC HD

140 56 90 35 168 40 10 13 24 50 36 8 20 27 7 4 M8×19 150 190 185 –

160 140 63 100 36 192 45 170 12 13 28 60 44 8 24 31 7 4 M10×22 160 210 205 250

90 140 70 112 36 222 50 170 12 13 28 60 44 8 24 31 7 4 M10×22 170 230 230 275

216 89 132 48 254 54 12 16 38 80 60 10 33 41 8 5 M12×28 190 270 270 320

ND90S

ND90L

ND100LX

ND100L

ND112MX

ND112M

ND132S

ND132M

OVERALL (MAX. )SHAFT AND KE YFOOT FIXINGFRAME

100

125

315

340

127

152

TEFCSQUIRREL CAGE

MOTORS

+ 0.0– 0.5

+ 0.009– 0.004

+ 0.018+ 0.002

CENTRE HEIGHT

SHAFT

H –

D

GE –

ALL

19 TO 28

32 TO 48

4 & ABOVE+ 0.2– 0.0

j6

k6


KEYWAY

8 TO 10

32 TO 80

8 TO 10

7 TO 10


F N9

ED –

F h9

h11GD

+ 0.0– 0.036

+ 0.3– 0.0

+ 0.0– 0.036

+ 0.0– 0.090

140

178

470

510

178

216

370

380

390

405

TOLERANCE

N9 /h9

GE

D

F

G

GA

GD

Y

TAPPED HOLE

× DEPTH

Ø AC

CABLE ENTRIESSCREWED FOR25.4 (1") BS CONDUITFOR CABLE GLAND

ADNO EYE BOLTFOR ND 90 S/L

HDHC

H

4 HOLES

AAA

HA

AB DIA.K

ED ED

BB

BBA

D

E C

L E

D

KEY


steps of 90°.3. One cable entry for DOL starting and two for star /

delta starting and multispeed motors are provided.

4. Compression type cable glands can be fittedwhen specified.

5. All dimensions are subject to confirmation.Certified Drawings will be sent on request.

20

335

360

370

380

390

405

470

510

285

310

310

320

330

345

390

430

M N P R S T LA D E ED F G GA GD GE Y×Depth AD AC L LB HB

165 130 200 0 12 3.5 10 24 50 36 8 20 27 7 4 M8×19 150 190 –

215 180 250 0 15 4 11 28 60 44 8 24 31 7 4 M10×22 160 210 150

215 180 250 0 15 4 11 28 60 44 8 24 31 7 4 M10×22 170 230 160

265 230 300 0 15 4 14 38 80 60 10 33 41 8 5 M12×28 190 270 190

ND90SD

ND90LD

ND100LXD

ND100LD

ND112MXD

ND112MD

ND132SD

ND132MD

DIMENSIONS OF FLANGE MOUNTING MOTORSIN FRAMES ND90 TO ND132

TEFCSQUIRREL CAGE

MOTORS


steps of 90°.3. One cable entry for DOL starting and two for star /

delta starting and multispeed motors are provided.


8 TO 10

32 TO 80

8 TO 10

7 TO 10

UP TO 265

120 TO 180

180 TO 250

19 TO 28

32 TO 48

4 & ABOVE

M –

N j6

D

GE –

+ 0.0– 0.036

+ 0.3– 0.0

+ 0.0– 0.030

+ 0.0– 0.090

KEY


P.C.D.

± 0.3

+ 0.014– 0.011

+ 0.016– 0.013

+ 0.009– 0.004

+ 0.018+ 0.002

SHAFT

j6

k6

TOLERANCE

GD

– 0.2– 0.0

F N9

ED –

F h9

h11

KEYWAY




N9 / h9

D

GE

F

G

GA

GD

Y

TAPPED HOLE

× DEPTHHB

P

4 HOLE DRILLEDØ EQUALLY

SPACED ONDIA CIRCLE

SM

AD

45°


N Ø ACØ

SPIGOT

TLA

LB

L

E

EDED

ER

NO EYE BOLT FORND 90 SD/LD

D D

SPIGOT

21

M N P R S T LA D E ED F G GA GD GE Y×Depth AD AC L LB HB

115 95 140 0 M8 3 10 24 50 36 8 20 27 7 4 M8×19 150 190 –

130 110 160 0 M8 3.5 10 28 60 44 8 24 31 7 4 M10×22 160 210 150

130 110 160 0 M8 3.5 10 28 60 44 8 24 31 7 4 M10×22 170 230 160

165 130 200 0 M10 3.5 12 38 80 60 10 33 41 8 5 M12×28 190 270 190

DIMENSIONS OF FACE MOUNTING MOTORSIN FRAMES ND90 TO ND132

8 TO 10

32 TO 80

8 TO 10

7 TO 10

M –

N j6

D

GE –

TOLERANCE

F N9

ED –

F h9

h11

+ 0.0– 0.036

+ 0.3– 0.0

+ 0.0– 0.030

+ 0.0– 0.090

KEY

KEYWAY

GD

± 0.3

+ 0.013– 0.009

+ 0.014– 0.011

+ 0.009– 0.004

+ 0.018+ 0.002

ON GRADE RANGE TOL.

SHAFT

UP TO 265

80 TO 120

120 TO 180

19 TO 28

32 TO 48

4 & ABOVE

j6

k6

+ 0.2– 0.0

ON GRADE RANGE TOL.

P.C.D.

SPIGOT

TEFCSQUIRREL CAGE

MOTORS


steps of 90°.3. One cable entry for DOL starting and two for

star / delta starting and multispeed motors areprovided.

ND90SC

ND90LC

ND100LXC

ND100LC

ND112MXC

ND112MC

ND132SC

ND 132MC

OVERALL (MAX. )SHAFT AND KE YFACE FIXING

315

340

370

380

390

405

470

510

265

290

310

320

330

345

390

430

FRAME



D

GE

F

G

GA

GD

N9 / h9

Y

TAPPED HOLE

× DEPTH HB

P× LA DEEP

EQUALLY SPACEDDIA CIRCLE

S

M

AD

45°


4 HOLES TAPPEDØ

ON

NØ AC

Ø

SPIGOT

TLA

LB

L

E

EDED

ER

NO EYE BOLT FORND 90 SC/LC

D D

22

H TOL

160.0

159.7

180.0

179.7

200.0

199.5

225.0

224.5

250.0

249.5

280.0

279.0

315.0

314.0

315.0

314.0

355.0

354.0

B

210

254

241

279

305

286

-

311

-

368

-

406

-

508

630

B'

-

-

-

-

-

-

311

-

349

-

419

-

457

-

-

HA

22

22

25

25

32

35

38

35

40

CABLE DIVIDING BOX PROVIDEDFOR ND 200 ONWARDS

ED

+0.0-0.5

E±0.5 C±1

L±5

B±0.5

B'±0.5

BA

BB

'Y'THREADEDCENTRE HOLES

N9/h9 F

ØD

G

GD

Y × DEPTH

CABLE ENTRYSCREWED FOR

'KK'B.S.CONDUIT

AA

A±0.5

AB

4-HOLES 'K' DIA.

ADAC

HD

H

HA

EARTHING TERMINALS OF M8 SIZE ONBOTH SIDES. THESE SHALL BE M12FOR 280 AND 315 FRAMES.

AUXILIARY TERMINAL BOX FOR SPACE HEATER& THERMISTOR ABOVE 200 FRAME ONLY

BB

254

298

286

323

356

375

419

487

533

740

857

AD

265

285

345

375

405

430

510

570

630

L

605

650

668

706

775

840

930

1075

1200

1375

1570

G

37.0

36.8

42.5

43.3

49.0

48.8

53.0

52.8

58.0

57.8

67.5

67.3

71.0

70.8

81.0

80.8

90.0

89.8

ABOVE 200 FRAMESMACHINES RUNNINGAT 3000 RPM HAVESMALLER SHAFTSAS SHOWN HERE

⊗ Frames having suffix 'S' are not available. For notes, please refer page 23.

65.030 / 65.011 140 110 18.0 / 17.957 11.0 / 10.91 58.0 / 57.8

FOOT FIXING OVERALL (MAX. )SHAFT & KEY

2 N

os.-

2"2

Nos

.-1.

5"2

Nos

.-1"

A

254

279

318

356

406

457

508

508

610

C

108

121

133

149

168

190

216

216

254

AA

73

84

64

70

80

100

110

110

110

AB

308

348

381

425

483

538

597

610

710

BA

76

95

104

102

135

198

164

230

250

K TOL

15.5

15.0

15.5

15.0

19.5

19.0

19.5

19.0

24.5

24.0

24.5

24.0

28.5

28.0

28.5

28.0

28.5

28.0

D TOL

42.018

42.002

48.018

48.002

55.030

55.011

60.030

60.011

65.030

65.011

75.030

75.011

80.030

80.011

90.035

90.013

100.035

100.013

E

110

110

110

140

140

140

170

170

210

ED

80

80

80

110

110

110

140

140

160

F TOL

12.00

11.957

14.00

13.957

16.00

15.957

18.00

17.957

18.00

17.957

20.00

19.948

22.00

21.948

25.00

24.948

28.00

27.948

GD TOL

8.00

7.91

9.00

8.91

10.00

9.91

11.00

10.91

11.00

10.91

12.00

11.91

14.00

13.91

14.00

13.91

14.00

13.89

Y×Depth AC

318

352

405

448

486

540

590

645

720

HD

376

418

464

520

594

642

725

755

827

KK

FRAME D E ED F TOLERANCE G

ND16OM 55.030 / 55.011 110 80 16.0 / 15.957 10.0 / 9.91 49.0 / 49.8 810 810 –

ND16OL 60.030 / 60.011 140 110 18.0 / 17.957 11.0 / 10.91 53.0 / 52.8 930 930 –

ND18OM 1075 1075 –

ND18OL 1170 1170 –

ND225S 70.030 / 70.011 140 110 20.0 / 19.948 12.0 / 11.91 62.0 / 62.3 – – 1345

ND225M 85.035 / 85.013 170 140 22.0 / 21.948 14.0 / 13.89 76.0 / 75.8 – – 1530

2Nos

.-2.5

"

GDTOLERANCE

FRAME

ND160M

ND160L

ND180M

ND180L

ND200L

ND225S

ND225M

ND250S

ND250M

ND280S

ND280M

ND315S

ND315M

ND315L⊗

ND355L⊗

DIMENSIONS OF FOOT MOUNTING MOTORSIN FRAMES ND160 TO ND355 WITH TERMINAL BOX ON SIDE

M16×32

M24×50

M20×40

22

TEFCSQUIRREL CAGE

MOTORS

LS M L

23

DIMENSIONS DRAWING OF FOOT MOUNTED MOTORSIN FRAME ND355L

A B B' C H TOL. AA AB BA BB K TOL. D TOL. E ED F TOL. GD TOL. G Y×Depth AD AC L HD HA KK

ND355L 610 630 – 254 110 710 250 857 210 160 630 720 1620 827 40

OVERALL (MAX. )SHAFT AND KE YFOOT FIXING

355.0

354.0

MACHINES RUNNING

AT 3000 RPM HAVE

SMALLER SHAFTS

AS SHOWN HERE

FRAME D TOLERANCE E ED F TOLERANCE GD TOLERANCE G L

ND355L 85.035/85.013 170 140 22.0/21.948 14.0/13.89 76.0/75.8 1570

FRAME

TEFCSQUIRREL CAGE

MOTORS


steps of 90°.3. One cable entry shall be for DOL starting and

two for star / delta starting and multispeedmotors.



6. Detailed stator and endshield fins are not shownin the drawing.


ED

+0.0-0.5

E±0.5 C±1.0

L±5

B±0.5

B"±0.5

BB

BA

THREADEDCENTRE HOLES

N9/h9 F

ØD

GG

D

Y × DEPTH

Y

EARTHING TERMINALS OFM12 SIZE ON BOTH SIDES.

CABLE ENTRY SCREWEDFOR 'KK' B.S.CONDUIT

AA

A±0.5

AB

4-HOLES 'K' DIA.

ADAC

HD

H

HA

AUXILIARY TERMINAL BOX FOR SPACEHEATER & THERMISTORS ABOVE 200FRAME ONLY

28.00

27.948

14.0

13.89

90.0

89.8

2 Nos2.5"M24×50

28.5

28.0

100.035

100.013

24

DIMENSIONS OF FOOT MOUNTING MOTORSIN FRAMES ND160 TO ND315 WITH TERMINAL BOX ON TOP

OVERALL (MAX. )SHAFT & KE YFOOT FIXING

2Nos

.-1"

2Nos

.-2"

2Nos

.-1.

5"

EDTOL

80

80

80

110

110

110

140

140

D TOLERANCE E ED F TOLERANCE GD TOLERANCE G

ND225 55.030 / 55.011 110 80 16.0 / 15.957 10.0 / 9.91 49.0 / 48.8 810 810 –

ND250 60.030 / 60.011 140 110 18.0 / 17.957 11.0 / 10.91 53.0 / 52.8 930 930 –

ND280 1075 1075 –

ND315 1170 1170 –

ND315L 70.030 / 70.011 140 110 20.0 / 19.948 12.0 / 11.91 62.5 / 62.3 – – 1345


65.030 / 65.011 140 110 18.0 / 17.957 11.0 / 10.91 58.0 / 57.8

LS M L

FRAME

M16×32

M24×50

M20×40

12001200

930930

TEFCSQUIRREL CAGE

MOTORS

Terminals Box position for ND280S/M is approximately at centre. For notes, please refer page 23, except that cable entry cannot be fromnon-driving end.

KKETOL

110

110

110

140

140

140

170

170

HA

22

22

25

25

32

35

38

35

HD

425

465

545

600

645

700

845

865

L

605

650

668

706

775

840

1075

1375

AC

318

352

405

448

486

540

590

645

AD

–

–

285

285

285

285

375

420

Y×DepthG

37.036.8

42.542.3

49.048.8

53.053.8

58.057.8

67.567.3

71.070.8

81.080.8

F TOL

12.0011.957

14.0013.957

16.0015.957

18.0017.957

18.0017.957

20.0019.948

22.0021.948

25.0024.948

D TOL

42.01842.002

48.01848.002

55.03055.011

60.03060.011

65.03065.011

75.03075.011

80.03080.011

90.03590.013

K

15.515.0

15.515.0

19.519.0

19.519.0

24.524.0

24.524.0

28.528.0

28.528.0

BB

254

298

286

323

356

375

419

487

533

740

BA

76

95

104

102

135

198

164

230

AB

308

348

381

425

483

538

597

610

AA

73

84

64

70

80

100

110

110

H

160.0159.7

180.0179.7

200.0199.5

225.0224.5

250.0249.5

280.0279.0

315.0314.0

315.0314.0

C

108

121

133

149

168

190

216

216

B B'

210 -

254 -

241 -

279 -

305 -

286 -

- 311

311 -

- 349

368 -

- 419

406 -

- 457

508 -

A

254

279

318

356

406

457

508

508

FRAME

ND160M

ND160L

ND180M

ND180L

ND200L

ND225S

ND225M

ND250S

ND250M

ND280S

ND280M

ND315S

ND315M

ND315L

CABLE DIVIDING BOX PROVIDED FOR200 FRAME ONWARDS

2-EYE BOLTS FOR200 AND ABOVE

AC

AD

HA AA

4-HOLES 'K' DIA.

AB

A ± 0.5

EARTHING TERMINALS OF M8 ON BOTH SIDESAND M12 FOR 280-315 FRAMES

HD

H

F

'Y' THREADEDCENTRE HOLES

N9 / h9

GD

G

ØD

Y × DEPTH

+0.0-0.5

CABLE ENTRY SCREWED FOR 'KK'B.S.CONDUIT

AUXILIARY TERMINAL BOX FOR SPACE HEATER/THERMISTORS ABOVE 200 FRAME ONLY.

L± 5

E ± 0.5 C ±1 B ±0.5B' ± 0.5

BB

ED

BA

GDTOL

8.007.91

9.008.91

10.009.91

11.0010.91

11.0010.91

12.0011.91

14.0013.91

14.0013.91

25


ND225 55.030 / 55.011 110 80 16.0 / 15.957 10.0 / 9.91 49.0 / 49.8 855 855 –

ND250 60.030 / 60.011 140 110 18.0 / 17.957 11.0 / 10.91 53.0 / 52.8 975 975 –

ND280 1120 1120 –

ND315 122 122 –

ND315 70.030 / 70.011 140 110 20.0 / 19.948 12.0 / 11.91 62.5 / 62.3 – – 1395

For notes, please refer page 23.


65.030 / 65.011 140 110 18.0 / 17.957 11.0 / 10.91 58.0 / 57.8

LSD MD LD

FRAME

AD AC L LB HB

265 318 432

285 352 476

345 405 810 285.5 528

375 448 855 304.5 590

405 486 975 342.5 688

430 540 1120 399.5 725

510 590 1250 444.5 725

570 645 1425 530.5 820

P S S

350 19 5

400 19 5

450 19 5

550 19 5

600 24 6

F TOL. GD TOL. G

12.00 8.00 37.0

11.957 7.91 36.8

14.00 9.00 42.5

13.957 8.91 42.3

16.00 10.00 49.015.957 9.91 48.8

18.00 11.00 53.0

17.957 10.91 52.8

18.00 11.00 58.0

17.957 10.91 57.8

20.00 12.00 67.5

19.948 11.91 67.3

22.00 14.00 71.021.948 13.91 70.8

25.00 14.00 81.024.948 13.91 80.8

D TOL

42.018

42.002

48.018

48.002

55.03055.011

60.030

60.011

65.030

65.011

75.030

75.011

80.03080.011

90.03590.013

FRAME

ND160MD

ND160LD

ND180MD

ND180LD

ND200LD

ND225SD

ND225MD

ND250SD

ND250MD

ND280SD

ND280MD

ND315SD

ND315MD

ND315LD

OVERALL (MAX.)

KK

SHAFT & KEY

D TOL. N TOL.

300.5 250.016299.5 249.987

350.5 300.018349.5 299.982

400.5 350.018399.5 349.982

500.5 450.020499.5 449.980

601.0 550.022599.0 549.978

FLANGE FIXING

LA

18

18

18

19

22

25

E ED

110 80

110 80

110 80

140 110

140 110

140 110

170 140

170 140 2 N

os.-2

"2

Nos

.-1.5

"2

Nos.-

1"

CONCENTRICITY IN MICRONS PERPENDICULARITY IN MICRONS RUNOUT IN MICRONS

NORM. NORM.

160-280 125 125

315 160 160

SHAFT Ø NORM.

30-50 50

50-80 60

90 70

640 213

685 235

708 241.5

746 260.5

DIMENSIONS OF FLANGE MOUNTING MOTORSIN FRAME ND160 TO ND315

Y×Depth

M16×32

M20×40

M24×50

FRAME

TEFCSQUIRREL CAGE

MOTORS

EARTHING TERMINALS OF M8 SIZE ON BOTH SIDES ANDM12 FOR 280 - 315 FRAME

'PERPENDICULARITY

CONCENTRICITY

EYEBOLT FOR VERTICALLYMOUNTED MOTORS ABOVE 200 FRAME ONLY

L ± 5

LB

CABLE ENTRY SCREWEDFOR 'KK' CONDUIT

T

+ 0.0- 0.5

ED

ØP

Ø N

SP

IGO

T

(E)

+ 0+ 2E LA

Ø A

C

AUXILIARY TERMINAL BOX FOR SPACE HEATER/THERMISTORS ABOVE 200 FRAME ONLY

HB

45°

22.5

4 - HOLES FOR FRAME 160 - 200

DRILLED Ø 'S' ON 'M' P.C.D.EQUALLY SPACED AS SHOWN

AD

8 - HOLES FOR FRAME 225 - 315

'Y' - THREADED CENTRE HOLE

N9 / h9 F GD

G

ØD

Y × Depth

M20×40

M20×40

26

B B'

C0 -

254 -

241 -

279 -

305 -

286 -

- 311

311 -

- 349

368 -

- 419

406 -

- 457

508 -

FRAME

ND160MH

ND160LH

ND180MH

ND180LH

ND200LH

ND225SH

ND225MH

ND250SH

ND250MH

ND280SH

ND280MH

ND315SH

ND315MH

ND315LH

G

37.036.8

42.542.3

49.048.8

53.053.8

58.057.8

67.567.3

71.070.8

81.080.8

K TOL

15.515.0

15.515.0

19.519.0

19.519.0

24.524.0

24.524.0

28.528.0

28.528.0

D TOL

42.01842.002

48.01842.002

55.03055.011

60.03060.011

65.03065.011

75.03075.011

80.03080.011

90.03590.013

M TOL

300.5299.5

350.5349.5

400.5399.5

500.5499.5

601.0599.0

BB

254

298

286

323

356

375

419

487

533

740

BA

76

95

104

102

135

198

164

230

H TOL

160.0159.7

180.0179.7

200.0199.5

225.0224.5

250.0249.5

280.0279.0

315.0314.0

315.0314.0

C

108

121

133

149

168

190

216

216

A

254

279

318

356

406

457

508

508

DIMENSIONS OF FOOT CUM FLANGE MOUNTING MOTORSIN FRAME ND160 TO ND315

S

19

19

19

19

24

E

110

110

110

140

140

140

170

170

F TOL

12.0011.957

14.0013.957

16.0015.957

18.0017.957

18.0017.957

20.0019.948

22.0021.948

25.0024.948

M16×32

ED

80

80

80

110

110

110

140

140

T

5

5

5

5

6

N TOL

250.016249.987

300.018299.982

350.018349.982

450.020449.980

550.022549.978

LA

18

18

19

22

25

P

350

400

450

550

660

AA

73

84

64

70

80

100

110

110

GD TOL

8.007.91

9.008.91

10.009.91

11.0010.91

11.0010.91

12.0011.91

14.0013.91

14.0013.91

FOOT FIXING FLANGE FIXING

AB

308

348

381

425

483

538

597

610

Y×Depth

M20×40

M24×50

SHAFT AND KEY

TEFCSQUIRREL CAGE

MOTORS

(Continued on the next page)

Y

F

N9 / H9

ØD

GG

D

Y-THREADED CENTRE

× DEPTHPERPENDICULARITY

ØP

N S

PIG

OT

(E)

ED+0.0-0.5

CONCENTRICITY

T

LA

+0+2E C ±1

L ± 5

CABLE DIVIDING BOX PROVIDED

FOR ND200 ONWARDS

LB

BAB ± 0.5B' ± 0.5

BB

22°30° 45°

4-HOLES FOR FRAME 160-200

8- HOLES FOR FRAME 225-315

DRILLED 'S' ON 'M' P.C.D.

EQUALLY SPACED AS SHOWN

H

AC

AA

ABA ±0.5

4-HOLES "K" DIA.

HD

AUXILIARY TERMINAL BOX FOR SPACE HEATER/

THERMISTOR ABOVE 200 FRAME ONLY

AD

HA

EARTHING TERMINALS OF M8 SIZE ON BOTH SIDES

AND M12 FOR 280 AND 315 FRAME

CABLE ENTRY SCREWED FOR 'KK' B.S. CONDUIT

ALL DIMENSIONS ARE IN MM

27

FRAME CONCENTRICITY PERPENDICULARITY RUNOUTIN MICRON IN MICRON IN MICRON

NORM NORM. SHAFT Ø NORM.

30-50 50

50-80 60

315 80 160 90 70

HA

22

22

25

25

32

35

38

35

FRAME

ND160MH

ND160LH

ND180MH

ND180LH

ND200LH

ND225SH

ND225MH

ND250SH

ND250MH

ND280SH

ND280MH

ND315SH

ND315MH

ND315LH

HD

376

418

464

520

624

642

725

755

L

605

650

668

706

775

840

930

1075

1200

1375

KKLB

213

235

241.5

260.5

285.5

304.5

342.5

399.5

444.5

530.5

2Nos

.-1.

5"

OVERALL

2Nos

.-2"

AD

265

285

345

375

405

430

510

570

AC

318

352

405

448

486

540

590

645

2Nos

.-1"

FTOLERANCE

16.0015.957

18.0017.957

18.0017.957

18.0017.957

20.0019.948

DTOLERANCE

55.03055.011

60.03060.011

65.03065.011

65.03065.011

70.03070.011

G

49.048.8

53.052.3

58.057.8

53.053.8

62.562.3

ED

80

110

110

110

110

Y

810

930930

1075

11701170

1345

E

110

140

140

140

140

FRAME

ND225SH

ND225MH

ND250SH

ND250MH

ND280SH

ND280MH

ND315SH

ND315MH

ND315LH

GDTOLERANCE

10.09.91

11.0010.91

11.0010.91

11.0010.91

12.0011.91

ABOVE 200 FRAMES

MACHINES RUNNING

AT 3000 RPM HAVE

SMALLER SHAFTS

AS SHOWN HERE

TEFCSQUIRREL CAGE

MOTORS

160-280 63 125


steps of 90°.3. One cable entry for DOL starting and two for

star / delta starting and multispeed motors areprovided.



28

TEFCSLIP RINGMOTORS

APPLICATION

Besides other applications like re-rolling mills,the main feature of this range is the variety ofCRANE DUTY motors, designed for service oncranes and hoists. Exclusively made to meetstringent starting duty requirements of thisapplication, motors have unique torque-speedcharacteristics for rapid acceleration, withminimum heat losses in the rotor circuit.These motors are robust in construction andextremely sound in electrical and mechanicaldesign. They are made suitable for frequentswitching and reversals.

Crompton Greaves TEFC Slip Ring Motorscomply with IEC and other internationalstandards.

ENCLOSURE

For all Slip Ring Motors made in TotallyEnclosed Fan Cooled (TEFC) enclosure, thedegree of protection for a standard motor isIP55 as per IEC.

INSULATION

All motors are supplied with Class 'F' insulationboth for stator and rotor. Yet temperature riseby resistance method is limited to Class Blimits.

COOLING AND VENTILATION

An external fan is mounted directly on theshaft which blows air on the ribbed surface ofthe motor. The fan is covered by a fan cover.

OVERSPEED

All motors are capable of withstandingminimum 2.5 times the rated speed subject toa maximum of 2000 RPM as stipulated in IEC.

OVERLOAD CAPACITY

All motors can withstand 60% overload for 15seconds as given in the IEC standards.

CORES

Both stator and rotor cores consist of highquality magnetic steel stampings.

WINDINGS AND INSULATION

Stator and rotor windings consist of syntheticenamel-covered copper wire or strip with slotinsulation, complying with IEC norms.All windings are impregnated with a syntheticresin varnish and then baked in specialheat-regulated ovens at a correcttemperature. The varnish polymerises and

sets, giving rigidity at all working temperatures.Motors have a high insulation resistance anda high resistance to moisture, salineatmosphere, acidic/alkaline fumes, oil andgrease. They offer complete reliability underall working conditions including humid tropicalclimates. The end-turns of the rotor windingshave tensile bands to hold them in placeagainst the centrifugal force caused byoverspeed.

BEARINGS AND SHAFTS

Ball and roller bearings are used. Greasenipples are provided on both sides to facilitatepreventive maintenance without dismantlingthe motor. Shafts are machined to extremelyfine limits to ensure fit and interchangeabilityof bearings.

BRUSHGEAR AND SLIPRINGSThe sliprings and brushgear are simple toassemble. They are enclosed by a cover heldin place against a grommet in a groove in theendshield, by means of studs and wingnuts toallow easy access for maintenance. However,motors in DW132 frame size have brushgearand sliprings inside the motor housing, whichalso provides easy access for maintenence.As sliprings are continuously rated, a shortcircuiting handle is not required.

In all frames, the sliprings are of the mouldedtype which gives stability and a high degree ofanti-tracking, besides being easy to clean.

TERMINALS AND CABLE ARRANGEMENTS

Terminals are mounted on a moulded baseand enclosed in a box having an inspectioncover. Terminal boxes are suitable for BritishStandard screwed conduits. Standardcompression type cable glands, suitable forPVC-A-PVC cable, can be fitted on request.

Rotor and stator leads are terminated in thesame terminal box, which facilitates easyconnections. The standard position of thestator terminal box is on the left hand side(when looking from the non-driving end of themotor). This can also be arranged on the righthand side, if specified in the order.

Motors in frame NDW160 and above can alsobe supplied with terminal box on top ifspecified in the order

CRANE DUTY SLIPRING MOTORS

Crane duty TEFC slipring motors are availablefrom frame 132 upwards to cover various dutyfactors and starts/stops per hour.

29

1.5 2.0 8 DW132S 680 4.5 70.0 67.0 63.0 0.61 0.51 0.40 110 8.5 0.33 88

2.2 3.0 4 DW132S 1410 4.5 78.0 76.0 74.0 0.85 0.79 0.71 110 13.5 0.17 882.2 3.0 6 DW132S 940 6.0 77.0 75.0 71.0 0.72 0.62 0.50 110 12.0 0.33 882.2 3.0 8 DW132M 690 5.7 75.0 74.0 71.0 0.65 0.55 0.44 110 13.0 0.40 111

3.0 4.0 4 DW132S 1410 6.0 80.0 78.0 74.0 0.80 0.74 0.66 110 17.0 0.17 883.0 4.0 6 DW132M 940 7.6 79.0 78.0 75.0 0.69 0.64 0.53 110 16.0 0.40 1113.0 4.0 8 NDW160M 690 8.5 7.5 80.0 79.0 77.0 0.68 0.64 0.56 230 8.0 0.58 132

3.7 5.0 4 DW132S 1400 8.0 79.0 78.0 75.0 0.84 0.79 0.70 110 23.0 0.17 883.7 5.0 6 DW132M 930 9.0 81.0 80.0 77.0 0.70 0.62 0.50 110 18.0 0.40 1113.7 5.0 8 NDW160M 710 10.5 10.0 81.0 80.0 78.0 0.68 0.64 0.56 230 10.0 0.58 141

5.5 7.5 4 DW132M 1430 12.0 81.0 78.0 74.0 0.80 0.72 0.62 110 33.0 0.20 1115.5 7.5 6 NDW160M 940 13.5 12.0 83.0 82.0 80.0 0.76 0.74 0.66 180 18.5 0.58 1415.5 7.5 8 NDW160L 710 15.0 14.0 82.0 81.0 79.0 0.68 0.64 0.56 360 10.0 0.80 165

7.5 10.0 4 NDW160M 1440 16.5 15.0 83.0 82.0 80.0 0.84 0.80 0.72 350 13.0 0.48 1417.5 10.0 6 NDW160L 940 18.0 16.5 83.0 82.0 80.0 0.76 0.72 0.64 260 19.0 0.77 1657.5 10.0 8 NDW180L 710 20.0 18.0 84.0 83.0 81.0 0.68 0.64 0.56 350 13.0 1.58 235

9.3 12.5 4 NDW160L 1440 20.0 18.0 84.0 83.0 81.0 0.84 0.80 0.72 350 16.0 0.35 1659.3 12.5 6 NDW180M 950 20.0 18.0 86.0 85.0 83.0 0.82 0.78 0.70 230 24.0 1.33 2059.3 12.5 8 NDW200L 725 24.5 22.0 86.0 85.0 83.0 0.68 0.64 0.76 300 19.5 2.68 285

11.0 15.0 4 NDW160L 1440 24.0 22.0 84.0 83.0 81.0 0.84 0.80 0.72 350 19.0 0.35 16511.0 15.0 6 NDW180L 950 24.0 22.0 86.0 85.0 83.0 0.82 0.78 0.70 230 28.5 1.58 23511.0 15.0 8 NDW200L 725 28.0 26.0 87.0 86.0 84.0 0.68 0.64 0.56 300 23.0 2.68 285

15.0 20.0 4 NDW180L 1445 31.0 28.0 88.0 87.0 85.0 0.84 0.80 0.72 350 27.0 1.25 23515.0 20.0 6 NDW200L 970 31.0 28.5 89.0 88.0 86.0 0.82 0.78 0.70 295 31.0 2.68 28515.0 20.0 8 NDW225M 730 37.5 34.0 87.0 86.0 84.0 0.70 0.66 0.58 350 27.0 3.06 410

18.5 25.0 4 NDW200L 1470 38.0 34.0 89.0 88.0 86.0 0.84 0.80 0.72 300 36.0 2.18 28518.5 25.0 6 NDW225M 970 38.5 36.0 89.0 88.0 86.0 0.82 0.78 0.70 310 37.0 2.87 41018.5 25.0 8 NDW225M 730 46.0 42.0 88.0 87.0 85.0 0.70 0.66 0.58 360 32.0 3.63 410

22.0 30.0 4 NDW200L 1470 44.5 40.0 89.0 88.0 86.0 0.85 0.81 0.73 390 33.0 2.34 28522.0 30.0 6 NDW225M 970 46.0 42.0 89.0 88.0 86.0 0.82 0.78 0.70 310 45.0 3.25 41022.0 30.0 8 NDW250M 730 50.0 45.0 91.0 90.0 88.0 0.74 0.70 0.62 250 55.0 6.81 540

30.0 40.0 4 NDW225M 1470 60.0 55.0 89.0 88.0 86.0 0.85 0.81 0.73 380 47.0 2.96 41030.0 40.0 6 NDW250M 975 61.0 55.0 91.0 90.0 88.0 0.82 0.78 0.70 320 56.0 6.81 54030.0 40.0 8 NDW280S 735 68.0 62.0 91.0 90.0 88.0 0.74 0.70 0.62 440 43.0 12.89 670

37.0 50.0 4 NDW250M 1475 73.0 67.0 90.0 89.0 87.0 0.85 0.81 0.73 425 52.0 4.96 54037.0 50.0 6 NDW280S 980 74.0 67.0 91.0 90.0 88.0 0.84 0.80 0.72 410 57.0 12.89 67037.0 50.0 8 NDW280M 735 83.0 76.0 91.0 90.0 88.0 0.74 0.70 0.62 520 45.0 15.14 750

45.0 60.0 4 NDW250M 1475 89.0 82.0 90.0 89.0 87.0 0.85 0.81 0.73 445 60.0 5.70 54045.0 60.0 6 NDW280M 980 88.0 81.0 91.5 91.0 89.0 0.85 0.81 0.73 320 87.0 15.14 75045.0 60.0 8 NDW315S 735 102.0 93.0 91.0 90.0 88.0 0.74 0.70 0.62 320 88.0 21.66 1106

55.0 75.0 4 NDW280S 1480 106.0 97.0 91.5 91.0 89.0 0.86 0.82 0.74 460 73.0 10.61 67055.0 75.0 6 NDW315S 980 107.0 98.0 92.0 91.0 89.0 0.85 0.81 0.73 535 62.0 22.00 110655.0 75.0 8 NDW315M 735 122.0 112.0 91.0 90.0 88.0 0.75 0.71 0.63 320 108.0 24.16 1180

75.0 100.0 4 NDW280M 1480 142.0 130.0 92.5 92.0 90.0 0.87 0.83 0.75 490 92.0 12.45 75075.0 100.0 6 NDW315M 980 144.0 132.0 93.0 92.0 90.0 0.85 0.81 0.73 470 96.0 24.16 118075.0 100.0 8 NDW315L 740 150.0 138.0 92.5 92.0 90.0 0.82 0.78 0.70 400 113.0 36.73 1260

FL GD²RPM KgM²

OPEN CIRCUITROTOR VOLTAGE

VOLTS 3/4 1/2 3/4 1/2FL FL FL FL

POLE

OUTPUT

kW HP

EFFICIENCY (%) POWER FACTOR NETTWEIGHT

Kg.FL FL

ROTORCURRENT

AMPS


FRAME

TEFCSLIP RINGMOTORS

PERFORMANCE DATA




Mounting : B3, Ambient : 45° C


Supply : 415V or 380V, 50 Hz, 3 Phase AC

Enclosure : Totally Enclosed Fan Cooled (TEFC)

Degree of Protection : IP55

Rating: Continuous, Duty : S1


30

90.0 120.0 4 NDW315S 1480 172.0 159.0 92.5 92.0 90.0 0.86 0.82 0.74 505 106.0 18.22 110690.0 120.0 6 NDW315L 980 171.0 157.0 93.0 92.0 90.0 0.86 0.82 0.74 400 135.0 36.73 126090.0 120.0 8 NDW315L 740 180.0 165.0 92.5 92.0 90.0 0.82 0.78 0.70 400 135.0 36.73 1260

110.0 150.0 4 NDW315M 1485 210.0 193.0 92.5 92.0 90.0 0.86 0.82 0.74 500 169.0 20.21 1180110.0 150.0 6 NDW315L 980 209.0 192.0 93.0 92.0 90.0 0.86 0.82 0.74 400 169.0 40.00 1260

125.0 168.0 4 NDW315L 1485 232.0 213.0 93.0 92.0 90.0 0.88 0.84 0.76 400 190.0 30.60 1260125.0 168.0 6 NDW315L 980 237.0 218.0 93.0 93.0 90.0 0.86 0.82 0.74 400 190.0 40.00 1260

150.0 200.0 4 NDW315L 1485 277.0 254.0 93.5 92.5 90.0 0.88 0.84 0.76 400 225.0 33.45 1260

160.0 215.0 4 NDW315L 1485 295.0 271.0 93.5 92.5 90.0 0.88 0.84 0.76 400 242.0 33.45 1260

FL GD²RPM KgM²



POLE

OUTPUT

kW HP


Kg.FL FL

ROTORCURRENT

AMPS


FRAME

The above data is subject to tolerance as per theapplicable standard.

FL - Full Load, STG - Starting, C - Current,T - Torque, DOL - Direct on Line, S/D-Star/Delta

TEFCSLIP RINGMOTORS


31

DIMENSIONS


DW132S 88 126 815 550 485 0.22

DW132M 111 149 815 550 485 0.22

NDW160M 141 243 1165 710 700 0.58

NDW160L 165 267 1165 710 700 0.58

NDW180M 205 311 1025 825 700 0.59

NDW180L 235 341 1025 825 700 0.59

NDW200L 285 423 1300 915 745 0.89

NDW225S 380 518 1300 915 745 0.89

NDW225M 410 548 1300 915 745 0.89

NDW250S 500 638 1300 915 745 0.89

NDW250M 540 678 1300 915 745 0.89

NDW280S 670 884 1500 1065 850 1.36

NDW280M 750 964 1500 1065 850 1.36

NDW315S 1106 1359 1600 1170 925 1.73

NDW315M 1180 1433 1600 1170 925 1.73

NDW315L 1260 1613 1830 1270 1156 2.69

NDW160M 141 243 1165 710 700 0.58

NDW160L 165 267 1165 710 700 0.58

NDW180M 205 307 1165 710 700 0.58

NDW180L 235 337 1165 710 700 0.58

NDW200L 285 393 1275 725 790 0.73

NDW225S 380 488 1275 725 790 0.73

NDW225M 410 518 1275 725 790 0.73

NDW250S 500 633 1450 785 890 1.01

NDW250M 540 673 1450 785 890 1.01

NDW280S 670 803 1450 785 890 1.01

NDW280M 750 883 1450 785 890 1.01

NDW315S 1106 1346 1730 920 1065 1.70

NDW315M 1180 1420 1730 920 1065 1.70

NDW315L 1260 1530 1830 1000 1115 2.04

FRAMEDIMENSIONS


FRAME

The standard packing is wooden for all abovemotors.

TEFCSLIP RINGMOTORS

FOOT MOUNTED MOTORS,TERMINAL BOX ON SIDE


FOOT MOUNTED MOTORS,TERMINAL BOX ON TOP

32

DIMENSIONS OF FOOT MOUNTING MOTORSIN FRAME DW132

FOOT FIXING

A B C H AA AB BA BB K HA D E ED F G GA GD GE Y×Depth AD AC L HC HD KK

216 89 132 41 254 64 12 16 38 80 60 10 33 41 8 5 M12×28 255 320 290 350 1"

OVERALL (MAX. )SHAFT AND KEY

DW132S

DW132M

600

640

178

216

140

178

FRAME

TEFCSLIP RINGMOTORS

GA

G

D

GD

GE

F

Y

TAPPED HOLE

× DEPTH

N9/h9

A

H

K

AB

4 HOLES DIAAAHA

2-CABLE ENTRIESSCREWED FOR KK BSCONDUIT FOR CABLEGLAND

HC

AD

Ø AC

HD

E C B

BB

BA

ED

L

SLIPRING MAINTAINANCECOVER AT OPPOSITEENDS

ED

E

DD

KEYWAYCENTRE HEIGHT

SHAFT

H –

D

GE –

ALL

32 TO 48

4 & ABOVE

+ 0.0– 0.5

+ 0.018+ 0.002

F N9

ED –

F h9

h11

KEY

GD

+ 0.0– 0.036

+ 0.3– 0.0

+ 0.0– 0.036

+ 0.0– 0.090


+ 0.2– 0.0

8 TO 10

32 TO 80

8 TO 10

7 TO 10

k6





TOLERANCE

33

DIMENSIONS OF FLANGE MOUNTING MOTORSIN FRAME DW132

M N P R S T LA D E ED F G GA GD GE Y×Depth AD L LB AC HB

300 230 350 0 15 4 13 38 80 60 10 33 41 8 5 M12×28 255 320 220

OVERALL (MAX. )FLANGE FIXING

600

640

520

560

DW132SD

DW132MD

FRAME

TEFCSLIP RINGMOTORS

UP TO 265

180 TO 250

32 TO 48

4 & ABOVE+ 0.2

- 0.0

M –

N j6

D

GE –

8 TO 10

32 TO 80

8 TO 10

7 TO 10

PCD

± 0.3

+ 0.016– 0.013

+ 0.018+ 0.002

F N9

ED –

F h9

h11

KEY

GD

TOLERANCE

+ 0.0– 0.036

+ 0.3– 0.0

+ 0.0– 0.030

+ 0.0– 0.090

KEYWAY


SHAFT

SPIGOT

k6

SHAFT AND KEY





GD

N9/h9

G

GA

F

D

GE

Y

TAPPED HOLE

× DEPTH

N DIA.SPIGOT

ED

ER

T

LA

Ø AC

E

LB

L

ED

SLIPRING MAINTAINANCECOVER AT OPPOSITE ENDS.

D D

AD

45°

4 - HOLES DRILLEDS DIA. ON M DIA. CIRCLE.

2 - CABLE ENTRIES SCREWEDFOR 25.4 MM (1") BS CONDUITFOR CABLE GLAND

P Ø

HB

34

GDG

GA

F

GE

N9 / h9

D

Y

TAPPED HOLE

× DEPTH

S

4 HOLES TAPPED

Ø ×'LA' DEEP

EQUALLY SPACED

ON DIA CIRCLEM

HB

P

45°

AD

2 CABLE ENTRIES

SCREWED FOR

25.4(1") BS CONDUIT

FOR CABLE GLAND

N

SPIGOT

D

Ø

E

ED

R

T

LB

ED

L

E

D

Ø AC

SLIPRINGMAINTAINANCE

COVER AT OPPOSITESIDES

M N P R S T LA D E ED F G GA GD GE Y×Depth AD L LB AC HB

165 130 200 0 M10 3.5 13 38 80 60 10 33 41 8 5 M12 × 28 255 320 220

OVERALL (MAX. )SHAFT AND KE YFLANGE FIXING

DW132SC

DW132MC

600

640

520

560

DIMENSIONS OF FACE MOUNTING MOTORSIN FRAME DW132

FRAME

TEFCSLIP RINGMOTORS

UP TO 265

120 TO 180

32 TO 48

4 & ABOVE+ 0.2

– 0.0

M –

N j6

D

GE –

8 TO 10

32 TO 80

8 TO 10

7 TO 10

PCD

± 0.3

+ 0.014– 0.009

+ 0.018+ 0.002

F N9

ED –

F h9

h11

KEY

GD

TOLERANCE

+ 0.0– 0.036

+ 0.3– 0.0

+ 0.0– 0.036

+ 0.0– 0.090

KEYWAY


SHAFT

SPIGOT

k6





35

DIMENSIONS OF FLANGE MOUNTED MOTORSIN FRAMES DW160 TO DW180

TEFCSLIPRINGMOTORS

FLANGE FIXING

M N LIMITS P R S T LA N LIMITS E ED F LIMITS GA AD L LB AD AD

300 250 350 0 19 5 19 42 110 80 12 45 295 360 230

300 250 350 0 19 5 19 48 110 80 14 51.5 315 415 260

OVERALL (MAX. )SHAFT AND KEY

DW160MD

DW160LD

DW180MD

DW180LD

+ 0.016

– 0.013

+ 0.016

– 0.013

+ 0.013

– 0.002

37.0

36.7

42.5

42.3

704

748

768

806

554

638

658

696

FRAME





GD

N9/h9

G

GA

F

D

GE

Y

TAPPED HOLE

× DEPTH

N DIA.SPIGOT

ED

ER

T

LA

Ø AC

E

LB

L

ED

SLIPRING MAINTAINANCECOVER AT OPPOSITE ENDS.

D D

AD

45°

4 - HOLES DRILLEDS DIA. ON M DIA. CIRCLE.

2 - CABLE ENTRIES SCREWEDFOR 25.4 MM (1") BS CONDUITFOR CABLE GLAND

P Ø

HB

36

ED

80

110

140

GA

45.044.8

51.551.3

49.058.0

64.063.8

69.068.8

79.579.3

85.084.8

95.094.8

FRAME

NDW160M

NDW160L

NDW180M

NDW180L

NDW200L

NDW225S

NDW225M

DW250S

DW250M

NDW280S

NDW280M

DW315S

DW315M

NDW315L

L1

882926

956994

1068

1218

12001238

1415

14721523

1740

DIMENSIONS OF FOOT MOUNTING MOTORSIN FRAMES NDW160 TO NDW315 WITH TERMINAL BOX ON SIDE

TEFCSLIP RINGMOTORS

EA RTHING TERMINALS OF M8 SIZEON BOTH SIDES . THESE SHAL L BEM12 FOR 280 AND ABOVE

CABLE ENT RY SCREWEDFOR 'KK' B.S.CONDUIT

AUXILIAR Y TERMINALS BOX FORSPACE HE ATER & THERMISTERSABOVE 200 FRAME ONLY

AA

A±0.5

AB

4-HOLES 'K' DIA.

ADAC

HD

H

HA


ED

+0.0-0.5

E C

L±5

B±0.3B'±0.3

BA

SLIPPRING ACCES S FROM TOPFOR ND & FOR DW250 & DW315ACCESS FROM BOTH SIDES

L

A

ED

+0.0-0.5

A

BB

DOUBLE SHAF T EXTN. WHEN READ

E

h

GA

SEC. A - A

D

F

'Y' THREADEDCENTRE HOLE

N9/h9

BB

254

298

286

323

356

375

381

419

487

482

533

740

B B'

210 -

254 -

241 -

279 -

305 -

286 -

- 311

311 -

349 -

368 -

- 419

406 -

- 457

508 -

OVERALL (MAX.)SHAFT & KEYFOOT FIXING

2Nos

.-1"

2Nos

.-2"

2Nos

.-1.

5"

F×h

12×8

14×9

16×10

18×11

18×11

20×12

22×14

25×14

E

110

140

170

D TOL.

42.01842.002

48.01848.002

55.03055.011

60.03060.011

65.03065.011

75.03075.011

80.03080.011

90.03590.013

K TOL.

15.515.0

15.515.0

19.519.0

19.519.0

24.524.0

24.524.0

28.528.0

28.528.0

HA

22

22

25

25

32

35

38

35

BA

76

95

104

102

127

198

153

230

AB

308

348

381

425

483

538

597

610

AA

73

84

64

70

79

100

89

110

H

160.0159.7

180.0179.7

200.0199.5

225.0224.5

250.0249.5

280.0279.0

315.0314.0

315.0314.0

C

108

121

133

149

168

190

216

216

A

254

279

318

356

406

457

508

508

HD

376

418

464

520

624

642

725

755

Y×Depth

M16×32

L

766810

840878

952

1072

10541092

1265

12941345

1565

AD

265

285

345

375

425

430

537

570

AC

318

352

405

448

540

540

700

645

KK

M24×50

M20×40

1. All dimensions are in mm, Unless specified.2. Stator and endshields shall be with fins

although there are not shown in detail.3. Cable entries can be rotated through 270° in

steps of 90° for all positions except driving end.4. Terminal Box position for frame ND290S/M shall

be approximately at centre5 Compression type cable glands can be fitted



37

DIMENSIONS OF FOOT MOUNTING MOTORSIN FRAMES NDW160 TO NDW315 WITH TERMINAL BOX ON TOP

TEFCSLIP RINGMOTORS

G

37.036.8

42.542.3

49.048.8

53.053.8

58.057.8

67.567.3

71.070.8

81.080.8

BB

254

298

286

323

356

375

419

487

533

740

B B'

210 -

254 -

241 -

279 -

305 -

286 -

- 311

311 -

- 349

368 -

- 419

406 -

- 457

508 -

OVERALL (MAX.)SHAFT & KEYFOOT FIXING

2Nos

.-1"

2Nos

.-2"

2Nos

.-1.

5"

L

766

810

840

878

952

1072

1128

1265

1460

1565

GD

8.007.91

9.008.91

10.009.91

11.0010.91

11.0010.91

12.0011.91

14.0013.91

14.0013.91

F

12.0011.957

14.0013.957

16.0015.957

18.0017.957

18.0017.957

20.0019.948

22.0021.948

25.0024.948

ED

80

80

80

110

110

110

140

140

E

110

110

110

140

140

140

170

170

D

42.01842.002

48.01848.002

55.03055.011

60.03060.011

65.03065.011

75.03075.011

80.03080.011

90.03590.013

K

15.515.0

15.515.0

19.519.0

19.519.0

24.524.0

24.524.0

28.528.0

28.528.0

HA

22

22

25

25

32

35

38

32

BA

76

95

104

102

135

198

164

230

AB

308

348

381

425

483

538

597

610

AA

73

84

64

70

80

100

110

110

H

160.0159.7

180.0179.7

200.0199.5

225.0224.5

250.0249.5

280.0279.0

315.0314.0

315.0314.0

C

108

121

133

149

168

190

216

216

A

254

279

318

356

406

457

508

508

FRAME

NDW160M

NDW160L

NDW180M

NDW180L

NDW200L

NDW225S

NDW225M

NDW250S

NDW250M

NDW280S

NDW280M

NDW315S

NDW315M

NDW315L

AC

318

352

405

448

486

540

590

645

AD

–

–

285

285

285

285

375

420

Y×Depth

M20×40

M16×32

HD

425

465

545

600

645

700

845

865

M24×50

1. All dimensions are in mm, Unless specified.2. Stator and endshields shall be with fins

although there are not shown in detail.3. Cable entries can be rotated through 270° in

steps of 90° for all positions except driving end.4. Terminal Box position for frame ND290S/M shall

be approximately at centre5 Compression type cable glands can be fitted



+0.0+0.5

CABLE ENT RY SCREWED FOR 'KK' B.S.CONDUIT

AUXILIA RY TERMINAL BOX FOR SPACE HEATER/THERMISTERS ABOVE 200 FRAME ON LY.

SLIPRING ACCES S COVERL± 5

E ± 0.5 C ± 1 B ± 0.5B' ± 0.5

BB

BA

ED

'Y' THREADED CENTRE HOLES

Y × DEPTH

N9 / h9

F

GD

G

D

CABLE DIVIDING BOX PROVIDED FOR 200 FRAME ON WARDS

2-EYE BOLTS FOR 200 AND ABOVE

AC

AD

HA AA

4-HOLES 'K' DIA.

AB

A ± 0.5

EARTHING TERMINALS OF M8 ON BOTH SIDE S AND M12FOR 280-315 FRAME

HD

H

KK

38

diecast. Motors in frames above 250M haverotor bars of copper or copper alloy, brazed tocopper or copper alloy end-rings.

Rotors are dynamically balanced onprecision balancing machines, minimizing thevibration level of the motors to less than thenormal allowable in BS 4999."Precision" balance can also be offered, ifrequired.

BEARINGS

The motors are provided with ball/rollerbearings. The life of the bearings is minimum20,000 hours. On-line greasing arrangementis provided for frame sizes 200 and above.

CONNECTIONS

All motors are provided with stud type terminalblock.

They are also provided with six terminals forStar-Delta starting.

An earthing terminal is provided inside theterminal box.

ACCESSORIES

Thermistors and/or space heaters (optional)can be provided for all frames on request.

HARDWARE

All hardware have metric threads and are zincpassivated for corrosion resistance.

INTERCHANGEABILITY AND SPARES

All Crompton Greaves Drip-proof motorsare built to standardised designs andmachined for fine limits. All spare parts areinterchangeable.

TESTS

All motors are tested in the course ofmanufacture and before despatch, inaccordance with IEC and other internationalstandards testing procedure.

SPECIAL FEATURES

Special features such as special shafts,motors suitable for dual voltage, highambients, high altitudes, multi-speedoperation, duty type rated, quiet running,etc. can be provided to meet the specialrequirements of customers. Details areavailable on request.

DRIP PROOFSQUIRREL CAGE

MOTORS

APPLICATION

The drip-proof cage motors are the mostcompact, have the simplest constructionand are the lowest in cost. They are,therefore, the most economical drive formachine tools, pumps, compressors, fans,conveyors and many other applications inlocations where a drip-proof enclosure isconsidered adequate.

Drip Proof (DP) Motors have ventilatedopenings in the end-shields. The openingsare screened to render any accidentalcontact with the live or moving partsimpossible. These motors are speciallydesigned to provide years of continuousand flawless service.

Dimensions and performance are in accordancewith IEC & other international standards.

ENCLOSURE

Generally, motors have IP21 degree ofprotection. Motors in frame 225 to 315 haveIP23 degree of protection. The Terminal Boxhas IP55 degree of protection as per IEC andother international standards.

INSULATION

All motors are manufactured with Class Finsulation, with temp. rise restricted to Class'B' limits.

CONSTRUCTION

Stator body and end shields are of highgrade cast iron. These are machined toclose tolerances for providing perfectalignment and fits. They are rigid inconstruction.

Terminal boxes are of cast iron and haveflanged joints with suitable gaskets betweenthem. Terminal boxes are provided withmetric conduit entries.

Cast iron fans are provided for all frames.The fans are suitable for both directions ofrotation except for 2 Pole rating in frames280 to 315. Cast aluminium fans are alsoavailable on request.

Motors up to Frame 200 have drain holes attheir lowest position.

ROTOR

All rotors upto 250M are aluminium pressure

39

FL GD²RPM KgM² 3/4 1/2 3/4 1/2 STG. C STG. T STG. C STG. T

FL FL FL FL %FLC %FLT % FLC % FLT

POLE

OUTPUT

kW HP

EFFICIENCY (%) POWER FACTOR DOL STG. S/D STG. NETTWEIGHT

Kg.FL FL


3.7 5.0 8 C160M 700 9.5 9.0 82.0 81.0 79.0 0.74 0.70 0.62 500 200 140 55 0.55 121

5.5 7.5 8 C160M 700 14.0 13.0 82.0 81.0 79.0 0.74 0.70 0.62 500 200 140 55 0.55 121

7.5 10.0 6 C160M 950 17.0 16.0 84.0 83.0 81.0 0.80 0.76 0.68 500 200 140 55 0.42 1217.5 10.0 8 C160L 700 19.0 17.0 82.0 81.0 79.0 0.74 0.70 0.62 500 200 140 55 0.65 131

9.3 12.5 2 C160M 2900 20.5 19.0 84.0 83.0 81.0 0.82 0.78 0.70 550 200 155 55 0.16 1219.3 12.5 4 C160M 1450 21.0 19.0 86.0 85.0 83.0 0.78 0.74 0.66 550 200 155 55 0.38 1219.3 12.5 6 C160L 950 21.0 19.0 84.0 83.0 81.0 0.80 0.76 0.68 500 200 140 55 0.54 1319.3 12.5 8 C180M 700 21.5 20.0 84.0 83.0 81.0 0.78 0.74 0.66 500 200 140 55 1.14 185

11.0 15.0 2 C160M 2900 24.5 23.0 84.0 83.0 81.0 0.82 0.78 0.70 550 200 155 55 0.16 12111.0 15.0 4 C160M 1450 24.5 22.0 86.0 85.0 83.0 0.80 0.76 0.68 550 200 155 55 0.38 12111.0 15.0 6 C160L 950 25.0 23.0 84.0 83.0 81.0 0.80 0.76 0.68 500 200 140 55 0.62 13111.0 15.0 8 C180M 700 24.5 23.0 85.0 84.0 82.0 0.80 0.76 0.68 500 200 140 55 1.14 185

15.0 20.0 2 C160M 2920 33.0 31.0 84.0 83.0 81.0 0.83 0.79 0.71 550 200 155 55 0.17 12115.0 20.0 4 C160L 1450 33.0 30.0 87.0 86.0 84.0 0.80 0.76 0.68 550 200 155 55 0.48 13115.0 20.0 6 C180M 960 33.0 30.0 85.0 84.0 82.0 0.82 0.78 0.70 600 225 170 60 1.14 18515.0 20.0 8 C180L 700 33.5 31.0 85.0 84.0 82.0 0.80 0.76 0.68 500 200 140 55 1.45 205

18.5 25.0 2 C160L 2920 40.0 39.0 84.0 83.0 81.0 0.84 0.80 0.72 550 200 155 55 0.22 13118.5 25.0 4 C160L 1450 40.0 36.0 88.0 87.0 85.0 0.80 0.76 0.68 550 200 155 55 0.68 13118.5 25.0 6 C180L 960 38.0 36.0 87.0 86.0 84.0 0.85 0.81 0.73 600 225 170 60 1.33 20518.5 25.0 8 C200M 720 44.0 41.0 86.0 85.0 83.0 0.74 0.70 0.62 500 150 140 40 2.20 260

22.0 30.0 2 C160L 2920 45.5 41.0 86.0 85.0 83.0 0.86 0.82 0.74 550 200 155 55 0.28 13122.0 30.0 4 C180M 1450 45.0 41.0 87.0 86.0 84.0 0.86 0.82 0.74 600 200 170 55 0.91 18522.0 30.0 6 C200M 960 44.0 40.0 89.0 88.0 86.0 0.86 0.82 0.74 600 200 170 55 1.91 26022.0 30.0 8 C200L 720 52.0 48.0 87.0 96.0 84.0 0.74 0.70 0.62 500 150 140 40 2.58 300

30.0 40.0 2 C180M 2935 56.0 51.0 89.0 88.0 86.0 0.92 0.88 0.80 600 200 170 55 0.49 18530.0 40.0 4 C180L 1450 59.0 54.0 88.0 87.0 85.0 0.88 0.84 0.76 600 200 170 55 1.15 20530.0 40.0 6 C200L 960 59.0 53.0 89.0 88.0 86.0 0.87 0.83 0.75 600 200 170 55 2.58 30030.0 40.0 8 C225M 720 70.0 64.0 88.0 87.0 85.0 0.74 0.70 0.62 500 150 140 40 3.35 340

37.0 50.0 2 C180L 2945 70.0 65.0 89.0 88.0 86.0 0.90 0.89 0.86 600 225 140 60 0.59 20537.0 50.0 4 C200M 1455 73.0 68.0 90.0 89.0 87.0 0.85 0.81 0.73 550 225 155 60 1.79 26037.0 50.0 6 C225M 960 69.0 64.0 92.0 91.0 89.0 0.88 0.84 0.76 600 200 170 55 3.35 34037.0 50.0 8 C250S 720 79.0 72.0 89.0 88.0 86.0 0.80 0.76 0.68 500 150 140 40 5.38 425

45.0 60.0 2 C200M 2930 84.0 78.0 90.0 89.0 87.0 0.90 0.86 0.78 600 225 170 60 0.78 26045.0 60.0 4 C200L 1455 86.0 79.0 90.0 89.0 87.0 0.88 0.84 0.76 550 225 155 60 2.11 30045.0 60.0 6 C250S 970 86.0 79.0 92.0 91.0 89.0 0.86 0.82 0.74 600 200 170 55 5.39 42545.0 60.0 8 C250M 725 95.0 88.0 89.5 89.0 87.0 0.80 0.76 0.68 500 150 140 40 6.66 480

55.0 75.0 2 C200L 2950 104.0 96.0 89.0 88.0 86.0 0.90 0.86 0.78 650 225 185 60 1.09 30055.0 75.0 4 C225M 1460 108.0 99.0 90.0 89.0 87.0 0.86 0.82 0.74 600 225 170 60 2.73 34055.0 75.0 6 C250M 970 103.0 96.0 92.0 91.0 89.0 0.88 0.84 0.76 600 200 170 55 6.66 48055.0 75.0 8 C280S 730 131.0 120.0 91.0 90.0 88.0 0.70 0.66 0.60 500 200 140 55 10.10 620

75.0 100.0 2 C225M 2930 141.0 130.0 90.0 89.0 87.0 0.90 0.86 0.78 600 200 170 55 1.17 34075.0 100.0 4 C250S 1475 145.0 133.0 92.5 92.0 90.0 0.85 0.81 0.73 550 175 155 50 4.51 42593.0 125.0 2 C250S 2950 174.0 155.0 90.0 89.0 87.0 0.90 0.86 0.78 600 200 170 55 1.87 42593.0 125.0 4 C250M 1475 180.0 163.0 92.5 92.0 90.0 0.85 0.81 0.73 550 175 155 50 5.60 480

FRAME


MOTORS

PERFORMANCE DATA

Supply : 415 V or 380 V, 50 Hz, 3 Phase AC

Enclosure : Screen Protected, Drip Proof (SPDP)

Degree of Protection : IP21 for C160 - 200IP23 for C225 - 315

Rating : Continuous, Duty: S1





Mounting : B3, Ambient : 45°C


40

FL GD²RPM KgM² 3/4 1/2 3/4 1/2 STG. C STG. T STG. C STG. T

FL FL FL FL %FLC %FLT % FLC % FLT

POLE

OUTPUT

kW HP


FL FL


93.0 125.0 6 C280M 980 182.0 166.0 92.5 92.0 90.0 0.84 0.80 0.72 550 225 155 60 13.45 71093.0 125.0 8 C315S 740 190.0 173.0 93.0 92.0 90.0 0.80 0.76 0.68 500 120 140 35 19.16 865

110.0 150.0 2 C250M 2950 206.0 188.0 90.0 89.0 87.0 0.90 0.86 0.78 600 200 170 55 4.70 480110.0 150.0 4 C280S 1475 200.0 183.0 93.0 92.5 90.5 0.90 0.86 0.78 600 150 170 40 7.44 620110.0 150.0 6 C315S 980 214.0 196.0 93.0 92.5 90.5 0.84 0.80 0.72 550 225 155 60 17.50 865110.0 150.0 8 C315M 740 225.0 205.0 93.0 92.0 90.0 0.80 0.76 0.68 500 225 140 60 20.83 950

132.0 175.0 2 C280M 2930 248.0 227.0 90.0 89.0 87.0 0.90 0.86 0.78 600 150 170 40 5.00 710132.0 175.0 4 C280M 1480 240.0 219.0 93.0 92.5 90.5 0.90 0.86 0.78 600 150 170 40 8.72 710132.0 175.0 6 C315M 980 257.0 235.0 93.0 92.5 90.5 0.84 0.80 0.72 550 225 155 60 20.83 950132.0 175.0 8 C315MX 740 270.0 246.0 93.0 92.0 90.0 0.80 0.76 0.68 500 120 140 35 30.00 1150

160.0 215.0 2 C315S 2940 294.0 268.0 92.0 91.0 89.0 0.90 0.86 0.78 600 140 170 40 7.45 865160.0 215.0 4 C315S 1475 304.0 278.0 93.0 92.0 90.0 0.86 0.82 0.74 500 225 140 60 16.00 865160.0 215.0 6 C315MX 985 313.0 286.0 92.5 92.0 90.0 0.84 0.80 0.72 550 225 155 60 30.00 1150

185.0 250.0 2 C315M 2940 339.0 315.0 92.0 91.0 89.0 0.90 0.86 0.78 600 140 170 40 8.71 950185.0 250.0 4 C315M 1475 356.0 329.0 93.0 92.0 90.0 0.85 0.81 0.73 500 225 140 60 17.40 950185.0 250.0 6 C315MX 985 362.0 334.0 92.5 92.0 90.0 0.84 0.80 0.72 550 225 155 60 30.00 1150

200.0 270.0 2 C315M 2950 367.0 336.0 92.0 91.0 89.0 0.90 0.86 0.78 600 140 170 40 8.71 950200.0 270.0 4 C315M 1475 380.0 361.0 93.0 92.0 90.0 0.86 0.81 0.73 600 225 140 60 17.40 960

220.0 300.0 2 C315MX 2950 404.0 370.0 92.0 91.0 89.0 0.90 0.86 0.78 600 140 170 40 11.60 1150220.0 300.0 4 C315MX 1475 423.0 387.0 93.0 92.0 90.0 0.85 0.81 0.73 500 225 140 60 22.30 1150

250.0 335.0 2 C315MX 2950 459.0 420.0 92.0 91.0 89.0 0.90 0.86 0.78 600 140 170 40 11.60 1150250.0 335.0 4 C315MX 1475 481.0 439.0 93.0 92.0 90.0 0.85 0.81 0.73 500 225 140 60 25.00 1150


FRAMENETT

WEIGHTKg.



MOTORS

** These Frames are for AustralianStandards AS1359 / AS1360 or SouthAfrican Standard SABS 948 Part I-1978.

* These outputs have Class ‘F’ temperaturerise.

The above data is subject to tolerance asper the applicable standard.

FL - Full Load, STG - Starting, C - Current,T - Torque, DOL - Direct on Line,S/D-Star/Delta

41

DIMENSIONS


C160M 121 192 725 610 533 0.24

C160L 131 202 725 610 533 0.24

C180M 185 291 850 690 588 0.34

C180L 205 311 850 690 588 0.34

C200M 260 366 980 800 673 0.53

C200L 300 406 980 800 673 0.53

C225M 340 446 980 800 673 0.53

C250S 425 563 1150 870 738 0.74

C250M 480 618 1150 870 738 0.74

C280S 620 834 1500 1170 900 1.58

C280M 710 924 1500 1170 900 1.58

C315S 865 1118 1600 1170 980 1.83

C315M 950 1203 1600 1170 980 1.83

C315MX 1150 1403 1600 1170 980 1.83


C160MD 130 202 725 610 533 0.24

C160LD 140 212 725 610 533 0.24

C180MD 195 267 850 690 588 0.34

C180LD 215 287 850 690 588 0.34

C200LD 310 452 980 800 673 0.53

C225MD 360 502 980 800 673 0.53

C250MD 495 725 1150 870 738 0.74

C280MD 725 991 1500 1170 900 1.58

C315MD 980 1308 1600 1170 980 1.83

C315MXD 1190 1518 1600 1170 980 1.83

DIMENSIONSFRAME

FRAME



FOOT MOUNTED MOTORS

FLANGE MOUNTED MOTORS


MOTORS

42

536

580

593

631

673

711

DIMENSIONS OF FOOT MOUNTING MOTORSIN FRAME C160 TO C200

14.0 9.00 42.002

13.957 8.91 42.3

16.0 10.00 49.0

15.957 9.91 48.8

18.0 11.0 53.0

17.959 10.91 52.8

254 15.5 48.018

298 15.0 48.002

285 15.5 55.030

323 15.0 55.011

318 19.5 60.030

355 19.0 60.011

267

318

A B C H AA AB BA BB K D E ED F GD G Y×Depth AD AC L HD HA KK

254 108 54 298 76 110 80 290 390 395 22

279 121 60 337 95 110 80 335 420 445 22

305 133 65 381 105 140 110 398 460 498 25

FOOT FIXING OVERALL (MAX.)SHAFT AND KEYFRAME

C160M

C160L

C180M

C180L

C200M

C200L

210

254

241

279

160.0

159.7

180.0

179.7

200.0

199.5 2 N

os.-

1.5"

M16×32

M20×40






MOTORS

60

N9 / h9

GD

G

Ø D

Y - THREADED CENTRE HOLES

Y × DEPTH

HD

EARTHING TERMINALS OF M8 SIZEON BOTH SIDES

AA

H

HA

ABA ± 0.5

AC

AD

AUXILIA RY TERMINAL BOX FOR SPACE HEATER/THERMISTORS ABOVE 200 FRAME WHEN SPECIFIED

4-HOLES Ø K

L ± 5

ED

+ 0.0– 0.5

E ± 0.5 C ±1BA

BB

B ± 0.5

AIR OUTLET AIR INLET

CABLE ENT RY SCREWED FOR 'KK', B.S. CONDUIT

2 N

os.-

1"2

Nos

.-1"

43

DIMENSIONS OF FOOT MOUNTING MOTORSIN FRAME C225 TO C315






FRAME

A B C H TOL AA AB BA BB K TOL D TOL E ED F TOL GD TOL G Y×Depth AD AC L HD HA KK

356 311 149 70 426 125 427 140 110 398 450 800 520 25

406 168 80 483 127 140 110 428 500 600 28

447 190 83 540 146 170 140 551 560 663 35

508 216 89 597 153 170 140 630 734 38

FOOT FIXING OVERALL (MAX.)SHAFT & KEYFRAME

C225M

C250SC250M

C250MX

C280SC280M

C280MX

C315SC315M

C315MX

2Nos

. 1.5

"2N

os.-

2"

787825927

9189691071

100810591186

M24X50

311

349

368

419

406

457

225.0

224.5

225.0

249.5

280.0

279.0

315.0

314.0

381

419

438

489

482

533

19.5 65.030

19.0 5.011

24.5 75.030

24.0 75.011

24.5 80.030

24.0 80.011

28.5 90.035

28.0 90.013

19.5 65.030 58.0

19.0 5.011 57.8

24.5 75.030 67.5

24.0 75.011 67.3

24.5 80.030 71.0

24.0 80.011 70.8

28.5 90.035 81.0

28.0 90.013 80.8

M20X40


MOTORS

N9/h9

F

ØD

GG

D

Y - THREADED CENTRE HOLES × DEPTHY

HD

A ± 0.5

AB

AA

HA

H

AC

AD

AUXILIA RY TERMINAL BOX FOR SPACE HEATER/THERMISTOR ONLY WHEN SPECIFIED

4 - HOLES Ø K

EARTHING TERMINALS OF M8 SIZE ON BOTH SIDESAND M12 FOR FOR 280-315 FRAME

E±0.5 C±1BAB±0.5

BB

AIR INLET

ED

+0.0-0.5

AIR OUTLET

L ±5

CABLE ENT RY SCREWED FOR 'KK' BS CONDUIT

M20X40

D E ED F TOLERANCE GD TOLERANCE G

C225 60.030 / 60.001 140 110 18.0 / 17.957 11.0 / 10.91 53.0 / 52.8 – 800 –

C225 65.030 / 66.001 140 110 18.0 / 17.957 11.0 / 10.91 53.0 / 52.8 787 825 927

C280 65.030 / 66.011 140 110 18.0 / 17.957 11.0 / 10.91 58.0 / 57.8 888 939 1041

C315 70.030 / 70.011 140 110 20.0 / 19.948 12.0 / 11.91 62.5 /62.3 978 1029 1156

LS M L

44

Ø SHAFT NORM.

30-50 50

50-80 60

90 70


C225 60.030 / 60.001 140 110 18.0 / 17.957 11.0 / 10.91 53.0 / 52.8 800 –

C250 825 927

C280 939 1041

C315 70.030 / 70.011 140 110 20.0 / 19.948 12.0 / 11.91 62.5 / 62.3 1029 1156

65.030 / 65.011 140 110 18.0 / 17.957 11.0 / 10.91 58.0 / 57.8

DIMENSIONS OF FLANGE MOUNTING MOTORSIN FRAMES C160 TO C315

AD AC L LB HB

290 325 235

335 352 265

398 450 298

398 550 295

428 520 355

515 383

419

P S T LA

400 19.9 5 19

450 19 5 19

550 19 5 25

660 24 6 25

660 24 6 25

800 24 6 28

F TOL. GD TOL. G

14.00 9.00 42.5

13.957 8.91 42.3

16.00 10.00 49.015.957 9.91 48.8

18.00 11.00 53.017.957 10.91 52.8

18.00 11.00 58.017.957 10.91 57.8

20.00 12.00 67.519.948 11.91 67.3

22.00 14.00 71.021.948 13.91 70.8

25.00 14.00 81.024.948 13.91 80.8

D TOL

48.018

48.00255.03055.011

60.03060.011

65.03065.011

75.03075.011

80.03080.011

90.03590.013

FRAME

C160MDC160LDC180MD

C180LD

C200MDC200LD

C225MD

C250MD

C250MXD

C280MDC280MXD

C315MDC315MXD

OVERALL (MAX.)

KK

SHAFT & KEY

M TOL. N TOL.

350.5 300.016349.5 299.984

400.5 350.018399.5 349.982

500.5 450.020499.5 449.980

601.0 550.022599.0 549.978601.0 550.022599.0 549.978

741.0 680.025739.0 679.975

FLANGE FIXING

E ED

110 80

110 80

140 110

140 110

140 110

170 140

170 140

Y×Depth

2 No

s.-1"

2 N

os.-2

"

536 213

580 235

593 241.5631 260.5

673 266.5

711 285.5

927 342.5969 342.5

1071 399.51059 399.5

810 444.51186 444.5

M24×50 555576

FRAMECONCENTRICITY IN MICRONS PERPENDICULARITY IN MICRONS RUNOUT IN MICRONS

NORM. NORM.

C225 125 125

MACHINES RUNNINGAT 3000 RPM HAVESMALLER SHAFTSAS SHOWN HERE

LMD MXD

M16×32

M20×40

FRAME


MOTORS

'Y' - THREADED CENTRE HOLES

N9 / h9 F

GD

G

ØD

Y × DEPTH

4 - HOLES FOR FRAMES 160 - 180

8 - HOLES FOR FRAMES 200 - 250

DRILL Ø 'S' ON 'M' P.C.D.

EQUALLY SPACED AS SHOWN

AC

AC

22°30°

45°

AD

CONCENTRICITY

PERPENDICULARITY

AUXILIA RY TERMINAL BOX FOR SPACE HEATER /

THERMISTORS, ABOVE 200 FRAME ON LY

L ±5

LBTAIR OUTLET

AIR INLET

+0.0- 0.5ED

Ø P

Ø N

SP

IGO

T

E

LA

E

+ 0+ 2

2 - LIFTING EYEBOLTS FOR VERTICAL

MOTORS ABOVE 200 FRAMES ON LY

CABLE ENT RY SCREWED FOR 'KK' B.S.C.

HB

M20×40

825 304.5

For notes pleaserefer to page 42

965

794

45

APPLICATION

Drip-proof Slipring motors are speciallydesigned for applications where use of cagemotors is not permitted or where a highstarting torque and/or prolonged starting timeis required with low starting current. Thestandard designs are suitable for all normalindustrial drives. Motors are also available fordrives requiring special characteristics.

ENCLOSURE

Drip-proof motors have ventilated openings inthe endshields which are protected by screensso that accidental contact with the movingparts is eliminated.

The degree of protection is IP 21.

PERFORMANCE AND DIMENSIONS

The standard motors are Class "F" insulated,continuous rated suitable for S1 duty and havemaximum temperature rise restricted to class'B' limits. (measured by the resistance method)over an ambient of 45°C at a maximum altitudeof 1000 metres. Motors can also be supplied forother duty cycles (S2 to S8) on request.

All motors comply with IEC standards.

STATOR FRAME AND ENDSHIELDS

The stator frame is of cast iron. In case of footmounted motors, the frame and feet are castintegrally. The end shields are also of cast iron.

CORES

Both stator and rotor cores consist of highquality magnetic steel stampings.

WINDINGS AND INSULATION

The stator and rotor windings consist ofsynthetic enamel-covered copper wire or stripwith slot insulation complying with IEC require-ments. All windings are completely immersedfor a predetermined period in a synthetic resinvarnish of a consistency which ensurescomplete penetration. They are then baked inspecial heat regulated ovens at the correcttemperature. The varnish polymerises and setsgiving rigidity at all working temperatures. It hasa high insulation resistance and a highresistance to moisture, saline atmosphere, acidor alkaline fumes and also to oil and grease. Theimpregnation gives complete reliability under allconditions, including humid tropical conditions.

BEARINGS AND SHAFTS

Ball and roller bearings are used. Greasenipples are fitted to both bearing housingson all foot mounted motors. Shafts aremachined to extremely fine limits to ensurefit and interchangeability of bearings.

BRUSHGEAR AND SLIPRINGSThe sliprings and brushgears are simple toassemble. They are enclosed by a cover heldin place against a grommet in a groove in theendshield, by means of studs and wingnuts toallow easy access for maintenance. However,motors in DW132 frame size have brushgearand sliprings inside the motor housing whichalso provides easy access for maintenence.As sliprings are continuously rated, a shortcircuiting handle is not required.

In all frames, the sliprings are of the mouldedtype which gives stability and a high degree ofanti-tracking, besides being easy to clean.

TERMINALS AND CABLE ARRANGEMENTS

The terminals are mounted on a mouldedbase and enclosed in a box having aninspection cover. The terminal boxes aresuitable for British Standard screwedconduit as a standard practice.Compression glands suitable for PVCarmoured cables can be fitted, if required.Stator and rotor terminals are terminated inthe same terminal box.

The standard position of the stator terminalbox is on the left hand side when looking fromthe non-driving end of the motor. It can bearranged instead on the right hand side, ifrequired.

STARTING

A starting torque of 100% full load torque(FLT) is available with starting current ofapproximately 250% full load current (FLC)by using suitable starter. If required,increased torques can be obtained, withcorresponding increased starting torquesand increased starting currents.

The rotors are specially designed to obtainrotor volts and amperes which will result in amost economical arrangement of customers'control gear and cabling.

INTERCHANGEABILITY AND SPARES

All motors are built to standardised designs,machined to fine limits and all spare parts areinterchangeable.

TESTS

All motors are tested in the course ofmanufacture and before despatch in accor-dance with IEC standards.

SPECIAL FEATURES

Special features are available to meetspecific requirements of customers such asspecial shafts, high altitudes, different dutycycles, etc.

DRIP PROOFSLIPRINGMOTORS

46

PERFORMANCE DATA

Supply : 415 V or 380 V, 50 Hz, 3 Phase AC

Enclosure : Screen Protected, Drip Proof (SPDP)

Degree of Protection : IP21 for Frames upto 200,IP23 for Frames 225 - 315MX

Rating: Continuous, Duty: S1


3.7 5.0 8 CW160M 700 11.0 10.0 78.0 77.0 75.0 0.68 0.64 0.56 230 9 0.51 130

5.5 7.5 6 CW160M 935 15.5 14.0 80.0 79.0 77.0 0.72 0.68 0.60 280 13 0.51 1305.5 7.5 8 CW160L 700 15.5 14.0 80.0 79.0 77.0 0.68 0.64 0.56 235 15 0.65 150

7.5 10.0 4 CW160M 1410 17.5 16 82 81 79 0.82 0.78 0.7 375 12 0.41 1307.5 10.0 6 CW160L 935 19.0 17.0 83.0 82.0 80.0 0.72 0.68 0.60 260 19 0.65 1507.5 10.0 8 CW180M 705 21.0 19.0 82.0 81.0 79.0 0.68 0.64 0.56 350 13 1.14 200

9.3 12.5 4 CW160L 1420 21.0 19.0 83.0 82.0 80.0 0.82 0.78 0.70 380 16 0.53 1509.3 12.5 6 CW180M 940 21.0 19.0 83.0 82.0 80.0 0.82 0.78 0.70 300 20 1.14 2009.3 12.5 8 CW180L 705 26.0 24.0 82.0 81.0 79.0 0.68 0.64 0.56 345 17 1.45 220

11.0 15.0 4 CW160L 1420 24.0 22.0 84.0 82.0 80.0 0.82 0.78 0.70 390 18 0.53 15011.0 15.0 6 CW180M 940 25.0 23.0 83.0 82.0 80.0 0.82 0.78 0.70 300 23 1.14 20011.0 15.0 8 CW180L 705 29.5 27.0 82.0 81.0 79.0 0.70 0.66 0.58 345 20 1.45 220

15.0 20.0 4 CW180M 1420 34.0 31.0 83.0 82.0 80.0 0.82 0.78 0.70 390 23 0.53 15015.0 20.0 6 CW180L 945 34.0 31.0 83.0 82.0 80.0 0.82 0.78 0.70 320 28 1.33 22015.0 20.0 8 CW200M 720 38.0 35.0 84.0 83.0 81.0 0.71 0.67 0.59 300 30 2.20 275

18.5 25.0 4 CW180M 1420 39.5 36.0 84.0 83.0 81.0 0.86 0.80 0.72 435 26 0.91 20018.5 25.0 6 CW200M 960 41.5 38.0 86.0 85.0 83.0 0.78 0.74 0.66 380 26 2.20 27518.5 25.0 8 CW200L 720 47.0 43.0 84.0 83.0 81.0 0.72 0.68 0.60 300 38 2.20 299

22.0 30.0 4 CW180L 1420 46.0 42.0 86.0 85.0 83.0 0.84 0.80 0.72 445 29 1.16 22022.0 30.0 6 CW200L 965 50.0 46.0 86.0 85.0 83.0 0.78 0.74 0.66 380 35 2.30 29922.0 30.0 8 CW225M 720 53.5 49.0 86.0 85.0 83.0 0.73 0.69 0.61 350 39 3.35 380

30.0 40.0 4 CW200M 1440 62.0 57.0 87.0 86.0 84.0 0.84 0.80 0.72 415 45 1.79 27530.0 40.0 6 CW225M 965 65.0 60.0 88.0 87.0 85.0 0.78 0.74 0.66 390 45 3.35 38030.0 40.0 8 CW225M 720 71.0 65.0 87.0 86.0 84.0 0.74 0.70 0.62 355 51 3.35 380

37.0 50.0 4 CW200L 1440 76.5 70.0 87.0 86.0 84 0.84 0.80 0.72 465 47 2.11 29937.0 50.0 6 CW225M 970 81.0 74.0 89.0 88.0 86 0.78 0.74 0.66 430 50 3.35 38037.0 50.0 8 CW250S 720 86.5 79.0 89.0 88.0 86 0.74 0.70 0.62 465 50 5.70 455

45.0 60.0 4 CW225M 1450 89.5 82.0 89.0 88.0 86.0 0.85 0.81 0.73 440 60 2.66 38045.0 60.0 6 CW250S 970 96.0 88.0 89.0 88.0 86.0 0.80 0.76 0.68 450 58 5.70 45545.0 60.0 8 CW250M 725 104.0 95.0 89.0 88.0 86.0 0.74 0.70 0.62 480 59 6.66 525

55.0 75.0 4 CW225M 1460 111.5 102.0 89.0 88.0 86.0 0.84 0.80 0.72 440 78 2.65 38055.0 75.0 6 CW250M 975 114.0 104.0 90.0 89.0 87.0 0.82 0.78 0.70 460 75 6.66 52555.0 75.0 8 CW280S 730 119.0 109.0 90.0 89.0 87.0 0.78 0.74 0.66 425 79 10.65 635

75.0 100.0 4 CW250S 1460 147.5 135.0 90.5 90.0 88.0 0.84 0.80 0.72 505 88 4.77 45575.0 100.0 6 CW280S 975 146.5 134.0 91.5 91.0 89.0 0.85 0.81 0.73 410 113 10.09 63575.0 100.0 8 CW280M 730 163.0 149.0 90.0 89.0 87.0 0.78 0.74 0.66 536 83 13.44 750

93.0 125.0 4 CW250MX 1460 179.0 164.0 92.0 91.0 89.0 0.86 0.82 0.74 500 110 7.15 69593.0 125.0 6 CW280M 975 180.0 165.0 92.0 91.0 89.0 0.85 0.81 0.73 520 111 13.44 75093.0 125.0 8 CW315S 730 204.0 187.0 91.5 91.0 89.0 0.76 0.72 0.64 490 112 19.16 870

110.0 150.0 4 CW280S 1465 211.0 193.0 92.0 91.0 89.0 0.86 0.82 0.74 480 142 9.23 635110.0 150.0 6 CW315S 975 215.0 197.0 92.5 92.0 90.0 0.84 0.80 0.72 495 140 17.50 870110.0 150.0 8 CW315M 730 238.0 218.0 91.5 91.0 89.0 0.77 0.73 0.65 350 190 21.66 980

132.0 180.0 4 CW280M 1475 251.0 230.0 92.5 92.0 90.0 0.86 0.82 0.74 480 167 11.07 750132.0 180.0 6 CW315M 975 258.0 236.0 92.5 92.0 90.0 0.84 0.80 0.72 450 180 20.83 980132.0 180.0 8 CW315MX 730 280.0 256.0 92.0 91.0 89.0 0.78 0.74 0.66 490 157 26.66 1200

NETTWEIGHT

Kg.


FL GD²RPM KgM²



POLE

OUTPUT

kW HP

EFFICIENCY (%) POWER FACTOR

FL FL

ROTORCURRENT

AMPSFRAME





Mounting : B3, Ambient : 45°C


47

3/4 1/2 3/4 1/2FL FL FL FL

FL GD²RPM KgM²

DIMENSIONS


160.0 215.0 4 CW315S 1470 305.0 279.0 92.5 92.0 90.0 0.86 0.84 0.76 465 206 14.64 870160.0 215.0 6 CW315MX 975 307.0 281.0 93.0 92.0 90.0 0.85 0.81 0.73 480 196 26.66 1200

185.0 250.0 4 CW315M 1470 357.0 327.0 92.5 92.0 90.0 0.86 0.82 0.74 540 207 17.43 980

200.0 270.0 4 CW315MX 1475 379.0 347.0 93.0 92.0 90.0 0.86 0.82 0.74 540 224 20.91 1200

220.0 300.0 4 CW315MX 1475 417.0 382.0 93.0 92.0 90.0 0.86 0.82 0.74 540 246 20.91 1200


VOLTS

POLE

OUTPUT

kW HP


Kg.FL FL

ROTORCURRENT

AMPS


CW160M 130 201 875 705 585 0.36

CW160L 150 221 875 705 585 0.36

CW180M 200 306 1025 825 700 0.59

CW180L 220 326 1025 825 700 0.59

CW200M 275 394 1150 845 710 0.69

CW200L 300 419 1150 845 710 0.69

CW225M 380 518 1300 915 745 0.89

CW250S 455 593 1300 915 745 0.89

CW250M 525 663 1300 915 745 0.89

CW250MX 695 948 1600 1170 925 1.73

CW280S 635 888 1600 1170 925 1.73

CW280M 750 1003 1600 1170 925 1.73

CW315S 870 1123 1600 1170 925 1.73

CW315M 980 1233 1600 1170 925 1.73

CW315MX 1200 1453 1600 1170 925 1.73

FRAME


FRAME





FOOT MOUNTED MOTORS

FL - Full Load, STG - Starting, C - Current,T - Torque, DOL - Direct on Line, S/D-Star/Delta

48

DIMENSIONS OF FOOT MOUNTING MOTORSIN FRAMES CW160 TO CW200






A B C H TOL AA AB BA BB K TOL D E ED F TOL GDTOL G Y×Depth AD AC L HD HA KK

254 108 54 298 76 110 80 290 390 395 22

279 121 60 337 95 110 80 335 420 445 22

318 133 65 381 105 140 110 398 460 498 25

FOOT FIXING OVERALL (MAX. )SHAFT AND KEY

FRAME

CW160M

CW160L

CW180M

CW180L

CW200M

CW200L

210

254

241

279

267

305

160.0

159.7

180.0

179.7

200.0

199.5

M16X32536

580

593

631

673

711

2 N

os.-

1"2

Nos

.-1.

5"14.0 9.00 42.002

13.957 8.91 42.3

16.0 10.00 49.0

15.957 9.91 48.8

18.0 11.0 53.0

17.959 10.91 52.8

M20X40

60

N9 / h9

GD

G

Ø D


Y × DEPTH

AC

HD


AA

H

HA

ABA ± 0.5

AD

AUXILIARY TERMINAL BOX FOR SPACE

HEATER/THERMISTORS ABOVE 200 FRAME WHEN SPECIFIED.

4-HOLES Ø K

L ± 5

ED

+ 0.0– 0.5

E ± 0.5 C ±1BA

BB

B ± 0.5


CABLE ENTRY SCREWED FOR 'KK'B5 CONDUIT

2 N

os.-

1"254 15.5 48.018

298 15.0 48.002

285 15.5 55.030

323 15.0 55.011

318 19.5 60.030

355 19.0 60.011

49

A B C H TOL AA AB BA BB K TOL D TOL E ED F TOL GD TOL G Y AD AC L HD HA KK

356 311 149 70 426 125 427 140 110 398 450 800 520 25

406 168 80 483 127 140 110 428 500 600 28

447 190 83 540 146 170 140 515 560 663 35

508 216 89 597 153 170 140 630 734 38

FOOT FIXING OVERALL (MAX. )SHAFT & KEYFRAME

CW225M

CW250SCW250MCW250MX

CW280SCW280MCW280MX

CW315SCW315MCW315MX

2Nos

. 1.5

"2N

os.-

2"787825927

9189691071

100810591186

M20

X40

M24

X50

311

349

368

419

406

457

225.0

224.5

225.0

249.5

280.0

279.0

315.0

314.0

381

419

438

489

482

533

19.5 65.030

19.0 65.011

24.5 75.030

24.0 75.011

24.5 80.030

24.0 80.011

28.5 90.035

28.0 90.013

19.5 65.030 58.0

19.0 5.011 57.8

24.5 75.030 67.5

24.0 75.011 67.3

24.5 80.030 71.0

24.0 80.011 70.8

28.5 90.035 81.0

28.0 90.013 80.8

DIMENSIONS OF FOOT MOUNTING MOTORSIN FRAME CW225 TO CW315






60

N9 / h9

GD

G

Ø D


Y × DEPTH

HD


AND M12 FOR 280-315 FRAME

AA

H

HA

ABA ± 0.5

AC

AD

AUXILIARY TERMINAL BOX FOR SPACE HEATER/THERMISTORS WHEN SPECIFIED.

4-HOLES Ø K

L ± 5

ED

+ 0.0– 0.5

E ± 0.5 C ±1BA

BB

B ± 0.5


2Nos

.-2"

M20

X40

555

576

50

SELECTION OF MOTORS

The following four areas should be consideredwhen selecting a motor for a particularapplication :

The mechanical requirements of thedriven load.

The electrical distribution system.

Physical and environmental considerations.

Efficiency and economic considerations.

The ultimate selection will optimise theseconsiderations and the motors availablefrom various motor manufacturers.

DRIVEN LOAD

For a motor to drive a load properly, it mustproduce enough torque to accelerate fromstandstill to operating speed, and supplyenough power for all possible demandswithout exceeding its design limits.

To specify the motor properly, the followingcharacteristics of the load should beconsidered :

Running characteristics :

continuous running, constant load.– horsepower requirement.

continuous running, varying load.– peak horsepower requirement.

cyclical load.– duty cycle.– peak torque and horsepower

requirements.– load inertia.

Speed :

constant speed.

multi-speed.– speeds required.

adjustable speed.– required speed range.– method of speed change.

Starting and stopping :

frequency of starting and stopping.

starting torque requirement.

acceleration restrictions.

requirements for braking.– mechanical– plugging

From this information the size and designcharacteristics of the motor, as well asdrive, control and braking requirements canbe determined.

INDUCTION MOTOR SELECTION

Squirrel cage induction motors are oftenreferred to as the "workhorses of theindustry" because they are low in costand reliable. They suit most applicationsand have the best availability.

These standard designs are suited toparticular classes of applications based onthe load requirements typical of each class.

Squirrel cage motors have minimalmaintenance requirements and arefrequently the choice of users.

Wound rotor induction motors are useful insome applications because their rotorcircuits can be altered to give the desiredstarting or running characteristics.However, they require brush servicing andmaintenance.

The following table can be used to helpdetermine which design type should beselected :

Starting BreakdownTorque Torque

(Percen t Full (Percent Full Starting Slip Typical ApplicationsClassification Load Torque) Load Torque) Current

Normal starting Fans, blowers, centrifugal pumps,torque and normal 100-200% 200-250% Normal <5% compressors, etc., where startingstarting current torque requirements are relatively low

High starting Conveyors, crushers, stirring machines,torque and normal 200-250% 200-250% Normal <5% agitators, reciprocating pumps, compressors,starting current etc., where starting under load is required.

High peak loads, loads with flywheelssuch as punch presses, shears, elevators,extractors, winches, hoists, oil-well pumpingand wire drawing machines

Any torque Depends Depends on Where high starting torque with low inrush,up to the on starting rotor frequent starting, or limited (2:1) speed

breakdown torque resistance control are required, and wherevalue high inertia must be accelerated

Induction Motor Selection

275% 275% low >5%

225-275%

High starting torqueand high slip

Wound Rotor

51

1.0

0.9

0.8

0.7

DE

RAT

ING

FA

CTO

R

0 1 2 3 4 5PERCENT VOLTAGE UNBALANCE

ELECTRICAL SUPPLY

The electrical supply distribution system mustsupply the correct voltage and have sufficientcapability to start and operate the motor load.

Voltage and Frequency

Motors are available in standard voltageranges :- 220/230V, or 240V, single phase and 220/

380V, 400/695V, 380V, 380/440V, threephase. Frequency is 50Hz or 50/60Hz or60Hz as required.

Other voltages and frequencies can beoffered to meet special requirements.

Polyphase induction motors are designed tooperate successfully with voltage variations of± 10%. The following table shows the effectsof a 10% variation on a typical inductionmotor at full load.

Voltage110% 90%

Slip -17% +23%Efficiency +1% -2%Power factor -3% +1%Current -7% +11%Temperature °C -4° +7°Starting torque +21% -19%Starting current +10% -10%

unbalance of greater than 1%, then the motorshould be derated according to the graph.

The use of a motor with a nonstandard orincorrect utilization voltage from the supplysystem should be avoided. For example, amotor with a nameplate voltage of 380 V issometimes connected to a 440 V system.While the maximum allowable voltage for themotor is 418 V (110% × 380) there is noallowance for an upward supply voltagevariation as the motor is already operatingabove its upper voltage limit. A motor of theproper voltage rating should be used, or atransformer installed to supply the correctvoltage.

Phase unbalance must be less than 1% forproper motor operation. A phase unbalance of3.5% results in a temperature rise of 25% anda current increase of 6-10 times the voltageunbalanced. These effects are due tonegative sequence currents flowing in therotor.

Voltage unbalance % is calculated as follows :

As an example, if line voltages weremeasured as 600, 585 and 609 volts, theaverage is 598 volts. The maximum deviationfrom average is 13 volts (598-585), and thusthe voltage unbalance is (13/598)×100 = 2.1%

If a motor must be operated with a phase

= × 100

Polyphase Squirrel-Cage Induction MotorsDerating Factor Due to Unbalanced Voltage

SELECTION OF MOTORS

Characteristics

Vunbalance

Maximum Deviation from Average

VAverage

A motor should not be operated if the phaseunbalance is greater than 3%.

Frequency variation of up to 5% is permittedfor normal motor operation. However,generally this should not be a problem, ifthe system is supplied from a utility. Motorspeed varies directly with the frequency ofthe power supply.

Power Factor

Most AC motors require reactive power fromthe supply system to develop magnetic fields.Measured in kVAR, reactive power does notprovide any mechanical work.

Useful mechanical work is developed fromreal power supplied by the supply systemand is measured in kW.

The supply distribution system provides bothReal and Reactive power to operate themotor. The vector sum Real and Reactivepower is called the Apparent power and isexpressed in kVA.

Apparent Power = Real Power² + Reactive Power²

The ratio of Real power to Apparent power isdefined as the Power Factor.

If the load consumes Reactive power from thesystem, the power factor is said to be lagging.Most electrical devices operate at a laggingpower factor.

The power factor of induction motors varieswith load.

The combined kW demand of all devicessupplied by the distribution systems dividedby the combined kVA demand of all supplieddevices yields the plant power factor.

Real PowerApparent Power

√−−−−−−−−−−−−−−−−−−−−−−−

Power Factor =

52

% V

OLT

AG

E D

IP

7.0

6.0

5.0

4.0

3.0

2.0

1.51.0

00 8 12 1 2 5 10 20 30 1 5 10 20 30 1 2 5 10 2030

O B J E C T I O N A B L E R A N G E

Thersholdof Objection

N O TO B J E C T I O N A B LEThershold

of Perception

PER DAY PER HR. PER MIN. PER SEC.

FREQUENCY OF VOLTAGE FLUCTUATIONOR NUMBER OF STARTS

Thresholdof Objection

OBJECTIONABLE RANGE

POINT A

POINT B

NOTOBJECTIONABLE

RANGEThresholdof Perception

7.0

6.0

5.0

4.0

3.0

2.0

1.5

1.00.5

% V

OLT

AG

E D

IP4 8 12 1 2 5 10 2030 1 5 1020 30 1 2 5 10 2030

PER DAY PER HR. PER MIN. PER SEC.

FREQUENCY OF VOLTAGE FLUCTUATIONOF NUMBER OF STARTS

SELECTION OF MOTORS

Penalties are usually charged by utilities ifplant power factor is below 90%, in whichcase, correction such as capacitors should beapplied.

Voltage Flicker

Starting motors or other large loads causes a voltage drop on the supply system whichmay be perceived as a flicker in lightingcircuits. This flicker becomes objectionablewhen the magnitude of the voltage drop andthe frequency of occurrence exceed certainthresholds. This threshold of objection isshown on a Voltage-Flicker curve.

Voltage Flicker Curve

If the magnitude of voltage drop and thefrequency of occurrence lie below thethreshold of objection, but above thethreshold of perception, people notice the lightflicker, but generally do not find it irritating.

If the magnitude of the voltage drop and thefrequency of occurrence lie below thethreshold of perception, people don't generallynotice any flicker.

As an example, consider a 5 HP motorsupplied by a 208 V feeder which alsosupplies 120 V lighting circuits.

Assume: 5 HP motorFull load amps = 16 AStarting current = 96 AFeeder impedance = 0.06ΩVoltage drop along feeder= starting current × feeder impedance= 96 × 0.06= 6V

Voltage Flicker Curve - Example

The 6 V drop along the feeder is equal to 5%of the voltage on the 120 V lighting circuit andcauses a noticeable flicker.

If the motor is started once every hour thenthe point on the flicker curve is in theobjectionable range (point A).

To correct this problem, the lighting circuitscan be supplied from a separate feeder, orthe voltage drop along the feeder can bereduced. In this case, a drop of 3.6% or lessis not objectionable.

Supplying the lighting from a different feederor upgrading the feeder is one approach oftenused.

A reduced voltage starter for the motor isanother alternative and often a very cost-effective solution.

If the starting current is limited to 70% of itsnormal value by use of a reduced voltagestarter, the voltage dip is 3.5% (70% × 5%)and motor starting of once per hour is notobjectionable (point B).

PHYSICAL AND ENVIRONMENTAL

CONSIDERATIONS

Usual Service Conditions

Motor ratings apply to motors operating underusual service conditions.

The International Standards specify usualenvironmental conditions as :

1. Exposure to an ambient temperature in therange of 0°c to 40°C or when water coolingis used, in the range of 10°C to 40°C.

2. Exposure to an altitude which does notexceed 3300 feet (1000 metres).

3. Installation on a rigid mounting surface.

4. Installation in areas or supplementaryenclosures which do not seriously interferewith the ventilation of the machine.

53

SELECTION OF MOTORS

Unusual Service Conditions

The manufacturer should be consulted if themotor is to be operated in unusual serviceconditions, such as mentioned below:

1. Exposure to :

a. Combustible, explosive, abrasive, orconducting dusts.

b. Lint or very dirty operating conditionswhere the accumulation of dirt mayinterfere with normal ventilation.

c. Chemical fumes, flammable or explosivegases.

d. Nuclear radiation.

e. Steam, salt-laden air, or oil vapor.

f. Damp or very dry locations, radiant heat,vermin infestation, or atmospheresconductive to the growth of fungus.

g. Abnormal shock, vibration, ormechanical loading from external sources.

h. Abnormal axial or side thrust imposed onthe motor shaft.

2. Operation where:

a. There is excessive departure from ratedvoltage or frequency, or both

b. The deviation factor of the alternating-current supply voltage excceds 10%.

c. The alternating-current supply voltage isunbalanced by more than 1%.

d. The rectifier output supplying a direct-current motor is unbalanced so that thedifference between the highest andlowest peak amplitudes of the currentpulses over one cycle exceed 10% ofthe highest pulse amplitude at ratedarmature current.

e. Low noise levels are required.

3. Operation at speeds above the highestrated speed.

4. Operation in a poorly ventilated room, in apit, or in an inclined position.

5. Operation subjected to:

a. Torsional impact loads.

b. Repetitive abnormal overloads.

c. Reversing or electric braking.

6. Operation of a machine at standstill withany winding continuously energized, or of ashort-time-rated machine with anywinding continuously energized.

Enclosure

The enclosure for the motor should bechosen to protect it from the expectedoperating environment.

Mounting

Motors are generally mounted horizontallywith feet attached to the floor, but otherarrangements are common:

wall mountedceiling mountedpedestal mountedface mountedflange mounted

The size and length of the shaft can bespecified if the standard shaft types ormaterials are not suitable for the requiredmounting arrangement or machineconfiguration.

Insulation

The type of insulation used in a motordepends on the operating temperature thatthe motor will experience. Motors arespecified by ambient temperature andinsulation class.

This table shows the maximum allowablestator winding temperature for an operatinglife of 20,000 hr and a maximum ambienttemperature of 40°c.

(continued on the next page)

Class 20,000 Hr Life Temperature

A 105°C

B 130°C

F 155°C

H 180°C

Maximum ambient temperature is 40°C.

Class A is an older classification. Class B andClass F are the current standard. Class H isused for higher temperature applications.

Average insulation life decreases rapidlywith increasing temperature. A cool runningmotor will have a much longer insulation life.

54

Rate = 6¢/kwh

5¢/kwh

4¢/kwh

9

8

7

6

5

4

3

2

1

0

0 2000 4000 6000 8000

AN

NU

AL

EN

ER

GY

CO

ST

TH

OU

SA

ND

$

AverageInsulation Life

105° 130° 155° 180°

Class A

Class B

Class F

Class H

0 50 100 150 200 250 300

WINDING TEMPERATURE IN °C

INS

ULA

TIO

N L

IFE

(H

OU

RS

)

1,000

2,000

3,000

4,000

5,000

6,0007,0008,0009,000

10,000

20,000

30,00040,00050,00060,00070,00080,00090,000

100,000

SELECTION OF MOTORS

Insulation Life vs Temperature

Service Factor

Motor service factor is an indication of theability to exceed the mechanical power outputrating on a sustained basis. A service factorof greater than 1.0 allows a margin for peakhorsepower demand without selecting thenext larger motor size.

Motor efficiency is reduced during operationat the service factor rating.

Service factors for higher temperatures orhigh altitude (>3300 feet) can often bespecified where required.

Noise

If a motor is used in an area where noiselevels are of concern, it should usebearings which are quieter than roller or ballbearings.

Quiet motors equipped with these bearingsand specially designed ventillation systemscan often be offered

Other Modifications

The standard motors suit almost allapplications. These are less expensive, haveproven engineering and are available onshorter lead times. However, motors can beordered with an almost unlimited number ofvariations to fit special applications where astandard motor is not suitable. We canprovide specific information on availability,lead time and price.

Because the operating cost over the lifeof a motor is often many times its purchaseprice, small differences in motor efficiency canyield significant savings.

Motor Efficiency

The efficiency of a motor is the ratio ofmechanical power output to the electricalpower input and is usually expressed as apercentage.

EFFICIENCY AND ECONOMICS

When selecting a motor for a particularapplication both its capital cost and the cost ofenergy for operation should be considered.

Energy Costs

The cost of electricity to run a motor forone year can easily exceed several timesthe purchase price of the motor.

The following graph shows the operatingcost for a typical 20 HP motor operatingfor one year at 88% efficiency.

Annual operating Costs of a 20 HP Motor

55

MechanicalPower Out

ElectricalPower In

Core Loss (25%)

Stator Loss (35%)

Rotor Loss (25%)Friction &

Windage (10%)

Stray Loss (5%)

EF

FIC

IEN

CY

%

90

80

70

60

50

40

30

20

10

00 25 50 75 100 125

% RATED LOAD

100 HP

10 HP

1 HP

100%

80%

60%

40%

20%

0

0 25% 50% 75% 100%

% MOTOR LOAD

%POWERFACTOR

Product improvement is a continuous process. Hence, data given in this catalogue is subject to change without intimation.

SELECTION OF MOTORS

Efficiency = × 100 = × 100Output Input - Losses

Input Input

Motor losses consume electrical energy butdo not contribute useful mechanical energyoutput.

They occur in five areas:– Core losses

– Stator losses

– Rotor losses

– Friction and windage

– Stray load losses.

Typical Motor Efficiency vs Load

Core losses are comprised of hysteresislosses (the energy required to magnetize thecore) and eddy current losses in the statorcore (magnetically induced circulatingcurrents). Core losses make up about 25% ofthe losses.

Stator losses are due to the I²R heating effectof current flowing through the resistance ofthe stator windings. They account forapproximately 35% of the total.

Rotor losses are caused by the I²R heatingeffect in the rotor. Rotor losses areresponsible for about 25% of the total.

Friction and windage losses include bearingfriction, wind friction on the rotor assemblyand the motor's cooling fan load. They makeup about 10% of the total.

Stray load losses are defined as all otherlosses above the sum of the core, stator,rotor and frictional losses. They are primarilydue to leakage reactance fluxes induced byload current. Stray load losses make upabout 5% of the total.

Efficiency And Motor Sizing

The efficiency of induction motors varies withload.

Good engineering practice dictates slightlyoversizing a motor for the following reasons:– to allow for an increase in production.– to accommodate load fluctuations and

overloads.– to accommodate the increase in load as

the driven load wears.– to increase motor operating life because of

lower winding temperatures.– as insurance against motor failure in critical

loads.

Sizing a motor for operation between 75%and 100% of full load provides what isgenerally considered to be a reasonablemargin. A service factor of 1.15 allows anadditional 15% margin over full load toaccommodate short term peak loadconditions.

Induction motors should not be grosslyoversized (<50% load) as the initial cost andenergy costs are greater and the power factoris lower.

Motor Losses

Typical Power Factor vs Load

Peak efficiency occurs between 75% and100% of full load depending on design, anddrops significantly below about 30% of fullload.

56

The widest Range of Motors, Alternators and Pumps

from Crompton Greaves

Single Phase / Three Phase FHP Motors

(FHP Range)

From 90 watts to 2.25kW to BS 5000 part11

Series 40 and Series 50 Frames

DP, TEFC and TE(AOM) enclosures

General Purpose and Customer Specific

For 120 Volts or 240 Volts, 50/60Hz. supply

suitability

CSA NRTL/C Listed for Canada and USA and with

CE mark for Europe

Standard Three Phase, LT, Induction Motors

(M1 and M3 Range)

From 0.18kW to 250kW, SCR and SR to IEC 325.

Frames 63 to 355L.

DP, TEFC, TE, Flame proof (Type 'd'). Increased

Safety (Type 'e'), Non-sparking (Type 'n'),

Pressurised (Type 'p') enclosures etc.

For 110 to 660 volts, 50/60Hz supply.

Under CSA NRTL/C listing for Canada and USA

and with CE mark for Europe.


Three Phase, LT, Induction Motors

(Large Machines Range)

From 150kW upto 1000kW, SCR and SR.

Frames 315 to 710, 2 pole to 14 pole.

TEFC, DP, Type 'd', Type 'e', Type 'n', Type 'p'

enclosures.

Vertical and horizontal, foot cum flange mounting.

For 400 to 690 volts, 50/60 Hz supply.


Standard Re-Rolling Mill Duty motors and Special

Dual Speed Induction Generators for Wind Mill Duty

are offered.

Three Phase, HT, Induction and Synchronous

Machines (Large Machines Range)

Upto 6000 kW, SCR and SR. (Range being

extended upto 8 MW)

Upto 20 poles.

CACA, TETV, SPDP, CACW, Flame proof, Type 'e',

Type 'n', Type 'p' enclosures.

For 2.2kV, 3.3kV, 6.6kV, 11kV, 14.3kV, 50/60 Hz

supply.

"Resin-Rich" alternatively "Resin-Poor" HIPACT-

Hitachi Insulation offered.

S1 to S8 duty cycles for all applications.

Alternators

From 5 KVA to 250 KVA, to generate 240 Volts,

0.8PF, 50/60 Hz, single phase and 415 Volts, 0.8PF,

50/60Hz, three phase, AC supply at 1500/1800 rpm,

conforming to BS5000 (Part 99).

Brush and Brushless designs, revolving armature

and revolving field types, with self exited and self

regulated exiter units.

For general purpose, marine and pully drive

applications.

Pumps

For Water Circulation Applications.

For single phase, and three phase supply.

With 250 Watts to 80 kW motors.

Coupled, monoblocks, Submersibles, Jet

Centrifugals, In Line Pumps for Industrial,

Agricultural and Commercial applications.

Documents

CGL Motors