Totally Enclosed Tube Ventilated High Voltage Induction Motors

Teepak

A Regal Brand

www.regalbeloit.com

1

Specifications

Range : Upto 3000 KW

Poles : Upto 14 Pole

Voltage : Upto 11000 Volt

Frame : 450 – 1000

Insulation : C1-F with rise limit C1-B

Rotor : Squirrel Cage**

Mounting : Horizontal & Vertical

Rotation : Uni-direction/Bi-direction

Cooling : IC 0151

Bearing : Grease lubricated anti-friction Rolling Element & oil lubcricated sleeve bearings.

Degree of Protection : IP 54, IP 55

Major Features

■ Fabricated Robust Steel construction for frames.

■ Uniform internal cooling circuit.

■ Axial Cooling for smaller ratings, both radial and axial ventilationfor larger ratings.

■ Basic mounting dimensions as per IS.

■ Class ‘F’ insulation system, both Resin rich & Resin poor (VPI) varietiesavailable.

■ Rotors are dynamically balanced .

■ Rotor bars are brazed with end rings by One Shot Brazing process.

■ Environmentally friendly motors to meet all Drives

■ Fault tested Phase Segregated Terminal box.

■ RTD, BTD, Dial type Temperature indicator available.

■ Separate Terminal Box available for Neutral point, RTD, BTDtermination purpose.

■ Provision for Magnetic Slot Wedge to improve Efficiency, PowerFactor and improve Electromagnetic noise

■ Provision for special Epoxy paint system

** For Slip-Ring, please refer to us

2

Design and Construction

Standards and regulations

The machines comply with IS-325, relevant BS and IEC.The motors can be offered to specific requirements of thecustomers.

The motors are designed for voltage and frequency asper IS 325. The standard values and the permissiblevariations are :

Voltage – 2.2 to 11 kV ± 10%

Frequency – upto 60 Hz ± 5%

Motors are also available to suit systems where voltageand frequency variations exceed the standard limits.

The rated outputs correspond to the continuous runningduty with cooling air temperature of 40°C and sitealtitudes not exceeding 1000 m. above m.s.l.

Types of construction

The machines are available in types of constructionB3, V1 or B35.

Ventilation systemThe machines have closed circuit with a concentric tubenest Cooler, which is Integral with the frame. Rotor is fittedwith shaft-mounted external and internal fans.

For 2-Pole machines the internal and external fans areuni-directional.

The externalfan is locatedi n t h e f a ncasing on thenon drive-endand forces theopen-circuit airth rough thecooling tubesof the statorframe.

The internal fanin the maincompar tmentf o r c e s t h eprimary air to circulate in symmetrical ducts in thelaminated rotor core. The primary air circulates throughthe end Windings and the ducts in the core packs andextracts the heat to the cooling tubes.

Degrees of protectionThe machines are manufactured with a degree ofprotection IP 54 or IP 55, corresponding to IS 4691 orIEC 34-5. Method of cooling complies with IC 0151. Themotors are suitable to service both indoor andoutdoor, and is strongly recommended for dustyenvironments.

Stator frame and winding

The stator frame is of welded construction. The axialcooling tubes are expanded into the two end walls.

The stator core pack is fitted centrally in the stator frameand secured against rotation and displacement.

The stator winding (two layer lap type) constitute ofdiamond shaped coils and are provided with Mica basedinsulation system complying with class F insulationrequirements. The insulation system comprises of twovarieties – Resin Rich Varnish Impregnated type or, ResinPoor Epoxy Impregnated (VPI) type. The insulationpossesses high die-electric strength, high resistance tomoisture and aggressive gases and vapours, thusproviding excellent mechanical stability and longerlife.

Fig 1 : MARATHON Electric TETV – Horizontal Mounting

Fig 2 : MARATHON Electric TETV – VerticalMounting

Fig 3 : Typical External Fan

3

Rotor construction

The rotor consists of a rigid shaft made out ofultrasonically tested steel forging. It is manufactured fromcarbon manganese steel of grade C45, 150M19, orequivalent. Standard motors have a single plain parallelshaft extension with a single key way and the motors arebalanced with a half key fitted. The extension is drilledand tapped as per standard.

quality Class F/H insulated bars to suit arduous siteconditions. All rotors are dynamically balanced to morestringent levels to make the overall motor vibrationseverity well below the limits specified in IS I2075.

End shieldsThe end shields at the drive and non drive-ends are madeof fabricated steel or cast iron. The end shields aredesigned for fitting the bearing assembly and take carefor transmitting the static and dynamic load.

BearingsDepending on the design and the operating conditionsspecified in the order, the machines are fitted with grease-lubricated rolling element bearings oil lubricated sleevebearings, Insulated bearings/brackets are provided onrequest. The bearings are selected for minimummaintenance and avoid the need of external lubricationsystems.

Terminal boxesThe electrical connections of the stator winding areterminated in the main terminal box. The terminal box isgenerally of phase segregated and of double walledconstruction. The design minimizes the possibility ofphase to phase to earth fault, limits its extent and reducesthe possible hazard to the personnel in operation. ThesePhase Segregated Terminal Boxes (PSTB) have beensuccessfully fault tested at CPRI laboratory, Bhopal,PVC/XLPE cables can be directly terminated to PSTB.

Machines containing auxiliary circuits for functions suchas anti-condensation heating, temperature monitoringetc. are fitted with separate auxiliary terminal boxes. Alltypes of Terminal boxes comply with degree of protectionIP 54/55 or, IEC 34.5.

Fig 4 : Typical Wound Stator

Fig 5 : Typical Cage Rotor

All squirrel cage motors have copper or copper alloyrotor cages. Tight fitting rotor bars are butt brazed tocopper endrings by one shot brazing process. Rotors ofslipring motors are designed and manufactured with high

Fig 6 : Typical Wound Rotor

Fig 7 : Typical Termination Arrangement Showing RTD-BTD (L)PSTB (C), Space Heater (R)

* PHASE SEGREGATED TERMINAL BOXFault level : 3.3 kV - 250 MVA

6.6. kV- 500 MVA

* Terminal boxes for motors with voltage ratings above6.6 kV are phase separated type with bushings.

4

The number, location and type of terminal boxes can beseen from the dimension drawing of the machine; circuitarrangement and connections of the main and auxiliarycircuits are either documented in the O & M manuals orsupplied separately.

Paint SystemSurface is primed after degreasing and cleaning usingEpilux 610 primer to a dry film. A single finish coat oftwo pack Epoxy paint is then applied.

AccessoriesProvided on request are PT 100 winding temperaturedetectors, PT100 bearing temperature detectors, Dial typetemperature indicator for bearings vibration monitoringprobes shock pulse transducers etc.Space heaters are provided as standard feature.

Total QualityThe complete range of HT Motors is manufactured to aQuality Assurance Plan, which lays down stringentacceptance norms for each stage of production. Allmaterials are critically tested in-house to ensure

conformity with National and International standards.

Customers are welcome to carry out stage inspection orfinal inspection during manufacture. Type testing can bedone upto 4000 KW, 11KV, 4 Pole.

BEARING RTD

Colour CodeR – RedW – WhiteB – BlueY – Yellow

AIR RTD

WINDING RTD

Colour CodeW – WhiteR – Red

~

N.D.E. D.E.

1 Ph, 240 V Supply

HEATER

Fig 10 : MARATHON Electric TETV Slipring Version

Fig 8 : Typical Arrangement for Neutral PointTermination (Shorting Link Suppliedseparately)

Fig 9 : Typical Alternative Arrangementfor Neutral Point Termination

R W W

1

B Y Y

52 3 4 6

Colour CodeR – RedW – WhiteB – BlueY – Yellow

N.D.E BRG. D.E. BRG.

W R R W R R W R R W R R W R R W R R

A – Ph B – Ph C – Ph

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18

Fig 11 : Typical Wiring Diagrams for winding RTD, Bearing RTD and Space Heater

FRAM

EA

BC

KBB

BABC

ABAA

HAH

HCAD

AED

EED

FGD

GL

WT.

MAX

.M

AX.

MAX

.M

AX.

(APP

ROX.

)(K

g.)

TS 4

0068

690

028

036

1250

300

300

886

200

3040

090

080

015

5010

021

020

528

1690

1825

2800

TS 4

5080

011

6520

042

1400

260

300

1040

240

3545

010

0095

018

5010

021

020

528

1690

2000

3000

TS 5

0085

012

5033

542

1600

315

315

1076

250

3650

011

0010

2519

5010

021

020

528

1690

2100

3700

TS 5

6095

013

0020

542

1600

260

420

1170

220

4256

012

5011

5022

5011

021

020

028

1690

2200

4500

TS 6

3010

0014

0028

042

1800

400

400

1210

240

4763

013

5011

5022

5012

021

020

528

1610

925

0060

00

TS 7

1012

5016

0025

442

1920

400

400

1400

250

5071

015

0011

5022

5013

025

022

032

1811

926

0070

00

THIS

GAD

IS TE

NTA

TIVE

& FO

R RE

FERE

NCE

ON

LY.

FOR

V1/B

35 M

OUN

TING

, PLE

ASE

REFE

R TO

WO

RKS.

REFERENCE LIST : TETV MOTORS

Sl. Year of Voltage Qty. Rating Synch. TypeNo. Supply (KV) (KW) Speed

(RPM)

1 2005 3.3 2 610 1000 SQ2 2005 3.3 1 610 1000 SQ3 2006 6.6 1 650 1500 SQ4 2006 3.3 2 610 1000 SQ5 2006 3.3 1 610 1000 SR6 2006 6.6 2 630 1000 SQ7 2006 6.6 1 550 1000 SQ8 2006 3.3 3 610 1000 SQ9 2006 6.6 1 500 750 SQ10 2006 6.6 1 700 750 SQ11 2006 6.6 3 500 1500 SQ12 2006 6.6 3 500 750 SQ13 2006 6.6 1 630 1000 SQ14 2006 6.6 2 500 1500 SQ15 2006 6.6 6 500 1500 SQ16 2006 6.6 2 650 1500 SQ17 2006 6.6 4 550 1500 SQ18 2006 6.6 1 550 1500 SQ19 2006 6.6 2 690 1000 SQ20 2006 6.6 1 525 3000 SQ21 2006 3.3 2 630 1000 SR22 2006 3.3 3 630 1000 SR23 2006 3.3 3 630 1000 SR24 2006 6.6 2 750 1500 SQ25 2006 6.6 1 750 750 SQ26 2006 6.6 2 700 1000 SQ27 2006 6.6 2 690 1000 SQ28 2006 3.3 2 900 1000 SQ29 2007 3.3 1 800 1500 SQ30 2007 3.3 1 650 1500 SQ31 2007 6.6 2 600 1500 SQ32 2007 3.3 2 650 1500 SQ33 2007 6.6 3 550 1500 SQ34 2007 6.6 2 700 1000 SQ35 2007 6.6 2 550 1000 SR36 2007 6.6 2 750 1500 SQ37 2007 3.3 2 800 1500 SQ38 2007 3.3 7 650 1500 SQ

Sl. Year of Voltage Qty. Rating Synch. TypeNo. Supply (KV) (KW) Speed

(RPM)

39 2007 6.6 1 730 1000 SQ40 2007 6.6 1 730 1000 SQ41 2007 6.6 3 620 1000 SQ42 2007 3.3 4 650 1500 SQ43 2007 6.6 1 670 1500 SQ44 2007 6.6 1 750 1500 SQ45 2007 6.6 1 650 1500 SQ46 2007 3.3 1 600 1500 SQ47 2007 3.3 4 800 1500 SQ48 2007 3.3 1 800 1500 SQ49 2007 6.6 2 630 1000 SQ50 2007 6.6 1 650 1000 SQ51 2007 6.6 2 500 1500 SQ52 2007 6.6 3 520 1500 SQ53 2007 3.3 1 500 750 SQ54 2007 6.6 1 530 1500 SQ55 2007 6.6 3 510 3000 SQ56 2007 6.6 3 700 1500 SQ57 2007 3.3 3 725 1000 SQ58 2007 3.3 6 630 1000 SQ59 2007 3.3 1 725 1000 SQ60 2008 6.6 2 690 1000 SQ61 2008 6.6 1 700 1500 SQ62 2008 6.6 4 525 1500 SQ63 2008 6.6 4 750 1500 SQ64 2008 6.6 1 500 750 SQ65 2008 6.6 1 650 1500 SQ66 2008 6.6 1 1120 1000 SQ67 2008 6.6 1 740 1000 SQ68 2008 6.6 1 518 1000 SQ69 2008 6.6 1 518 1000 SQ70 2008 6.6 1 990 1000 SR71 2008 6.6 1 660 1000 SR72 2008 6.6 1 630 750 SQ73 2008 6.6 5 630 1500 SQ74 2008 3.3 2 1000 1000 SQ75 2008 3.3 2 600 1000 SQ76 2008 3.3 4 560 600 SQ

…… The goes on

A Regal Brand

www.regalbeloit.com

Paharpur Works58, Taratala RoadKolkata - 700024Ph: 91 33 4403 0400Fax: 91 33 2469 5369/8530

www.marathonelectric.com

Motors

AEI Works1, Taratala RoadKolkata - 700024Ph: 91 33 4403 0500Fax: 91 33 2469 6988

TM

MEMI/CAT/TEEPAK/10112/03 Replaces MEMI/CAT/TEEPAK/1108/02