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Water Jacket Three Phase Squirrel Cage Induction MotorsB4J - B5J SERIES 355 - 500 FRAME SIZES TECHNICAL CATALOGUE

MarelliMotoriASI.CT.036.0 GB

WATER COOLED ASYNCHRONOUS MOTORS 355, 400, 450 AND 500 FRAME SIZESThis series of water cooled motors was designed by MarelliMotori for heavy duty applications where space and natural ventilation is limited. The integral water jacket coolers provide an excellent power output for the compact motor size as compared to traditional heat exchanger designs. These motors, originally designed for tight shipboard applications as main propulsion drives and auxiliary bow thrusters, now find themselves in heavy industry for compressors, pumps, rollers and other rotating equipment. MarelliMotori has a tradition dating back to 1891 when Ercole Marelli founded the company. Today it forms an integral part of the worldwide FKI group of companies. With over 100 years of manufacturing excellence and experience, MarelliMotori is recognised as a leading supplier to Industrial, Petrochemical and Marine Industries offering a complete range of Low and Medium Voltage Motors and Generators. These quality products are backed up by an organisation of skilled people providing sales, service and technical support to the high standards demanded by customers.

AVAILABLE OUTPUTS - Duty S1

Frame 355 400

60Hz

450 500

650Hz

poles60Hz

450Hz

0

500

1000 [kW]

1500

2000

APPLICATIONS Marine (bow thrusters & main propulsion) Heavy Industry Process Industry Rubber and Plastic Industry Ventilation Pumps, Compressors and Agitators Paper and Ceramic Rolling Mills Power GenerationASI.CT.036.0 GB

GENERAL FEATURESRobust construction designed for heavy, arduous and continuous duty in confined spaces. Standards IEC 60034 IEC 60072 Approvals The motors are designed and built in accordance with naval specifications and approved by: ABS, BV, DNV and RINa Mountings Vertical or horizontal Feet and/or flange mountings Construction Steel frame Cast iron or steel terminal boxes and shields IP55 Windings impregnated with VPI system (Vacuum Pressure Impregnation) Insulation class F Vibration grade R Anti-corrosion and rust frame treatment Stainless steel nameplate Simple earthing Drainage hole PTCs in windings with terminals in auxiliary terminal box Supply Low or Medium Voltage Inverter Cooling Fresh water coming from external circuit and circulating in the interspace lapping the stator core Sound Pressure Extremely quiet Bearings Ball bearings Regreasing system Arrangement for SPM sensor Safety Internal water leakage sensor Advantages of Water Jacket Design Heat removal from the installation area Compact dimensions Reduced vibrations No dust circulation Recommended Uses: When limited space is available When driven machine is already water cooled When reduced vibration and low noise are required When switchboard is already water cooled

ASI.CT.036.0 GB

TECHNICAL FEATURESDuty Type The tables shown in this catalogue refer to S1 duty type. The table below shows the correction factors to calculate the outputs for S2 duty.

S2 - 30 4 Poles1,30 1,30 1,25 1,15

S2 - 60 6 Poles1,30 1,25 1,20 1,15

Frame size355 400 450 500

4 Poles1,10 1,10 1,05 1,05

6 Poles1,10 1,05 1,05 1,05

Degree of Protection Motors are normally provided with IP55 enclosure. A higher degree of protection is available on request. Environmental Conditions Electrical tables refer to a cooling water of +38C and altitude of 1000m a.s.l. Please contact MarelliMotori for different environmental conditions and where cooling water temperature is less than 10C. Insulation All motors have class F insulation which allows a maximum winding temperature rise of 107C with cooling fluid temperature of 38C. On request class H insulation compatible with winding temperature up to 127C is also available. Please contact MarelliMotori for cooling fluid temperatures lower than +10C. Temperature Rise The outputs shown in this catalogue refer to temperature rise F. PROTECTIVE TREATMENTS External Surfaces Standard finish is a heavy duty epoxy-vinyl paint. Colour is RAL5010. Special paint finishes can be provided to protect against: acids, alkalis, salt air, anhydrous gases and sea water. Internal Surfaces Special tropicalised treatment of internal surfaces and electrical windings and inner cooling channels are coated with rust protector. COOLING IC 7 A1 W7 (Self-circulating primary coolant with integral heat exchanger using remote fresh water). Reduces the noise level and it is ideal for constant torque, low speed, inverter applications. MATERIALS Durability and reliability determine the choice of materials. Fabricated steel frames and cast iron shields are designed for reduced weight. Terminal boxes for frame sizes up to 400LB are in cast iron and from 400LC to 500 frame size in fabricated steel. Please contact MarelliMotori for different materials. Special steel shafts are available for high load applications. BALANCING AND VIBRATION GRADE The motors are dynamically balanced with a half key applied to the shaft extension in accordance with standard IEC 60034-14 to vibration grade reduced (R). On request vibration grade special (S) is also available.

ASI.CT.036.0 GB

SOUND LEVELSThe electric tables show the sound pressure levels (Lp(A)) measured at no load conditions at one metre distance from the machine according to standard ISO R 1680 with tolerances of 3dB(A). The values do not depend on the supply frequency.

BEARINGSFrame size355 400 450 500

D-end Poles4 4 4 4 4

N-end V16322-C3 6322-C3 6322-C3 6326-C3 6328-C3

Relubrication intervals1 [hours] V16322-C3 6322-C3 7322 7326 7328

Type

B36322-C3 6322-C3 6322-C3 6326-C3 6328-C3

B36322-C3 6322-C3 6322-C3 6326-C3 6328-C3

1800rpm6300 6300 6300 5500 5000

1500rpm7300 7300 7300 6500 6000

1200rpm8400 8400 8400 7500 7500

1000rpm9000 9000 9000 9000 9000

LA-LF LA-LB LC-LD LA-LC LA-LC

1: Suitable for B3 mounting

On request high load configurations are also available: roller bearings or sleeve bearings.

TERMINAL BOX

Terminal box 355-400LB

Terminal box 400LC-500

Frame size

Terminal block

Terminals

Maximum conductor cross section 2 x 300mm2 4 x 300mm2

Cable entrance

355-400LB 400LC-500

Flat copper bars Flat copper bars

Hole for M12 bolt Hole for M12 bolt

Undrilled gland plate Undrilled gland plate

DERATING FOR INVERTER SUPPLYThe B4J and B5J series have been designed to satisfy the requirements of speed control by frequency converter supply. MarelliMotori therefore provides various solutions to obtain the best performances. To select the best solution please contact MarelliMotori supplying the following information: 1. Load characteristics (quadratic torque, constant torque or torque curve for all other cases) of the driven equipment; 2. Electric supply and speed range; 3. Converter supply characteristics (peak voltage values at the motor terminals, rise time, etc.); 4. Maximum inverter overload (time and current value). Inverter fed motors will be supplied with enhanced winding insulation and N-end insulated bearing.

APPROVALSIn addition to meeting the electrical motor specifications, the B4J and B5J series also match the requirements of naval register rules for pressure vessels. In particular our motors are approved by: ABS, BV, DNV and RINa.

SAFETYThe whole series is supplied with PTC in windings and internal water leakage sensor as standard.ASI.CT.036.0 GB

TECHNICAL DATA / LOW VOLTAGE 690VRated output 50Hz kW 60Hz kW Motor type Rated speed 50Hz min-1 60Hz min-1 Performances at rated outputs 50Hz Power factor Torque Current Efficiency Tn Nm In A D.O.L. Starting Current Torque Is/In p.u. Ts/Tn p.u. Breakdown torque Tmax/Tn p.u. Sound pressure level LpA dB(A) Moment of inertia J kgm2

Weight approx.

%

COS

-

kg

4 poles330 400 450 500 550 600 700 770 980 1050 1180 1400 1560 1750 400 480 540 600 660 720 830 920 1150 1250 1400 1600 1800 2000 B4J 355 355 355 355 355 400 400 400 450 450 450 500 500 500 LA4 LB4 LC4 LD4 LF4 LA4 LB4 LC4 LA4 LB4 LC4 LA4 LB4 LC4 1484 1486 1486 1486 1487 1486 1486 1486 1491 1492 1492 1493 1493 1494 1784 1786 1786 1786 1787 1786 1786 1786 1791 1792 1792 1793 1793 1794 2123 2570 2892 3213 3532 3856 4498 4948 6277 6720 7552 8954 9978 11186 327 395 444 487 535 604 695 773 957 1014 1137 1363 1517 1681 96,0 96,3 96,4 96,6 96,7 96,7 96,8 96,9 97,4 97,4 97,6 97,7 97,8 97,9 0,88 0,88 0,88 0,89 0,89 0,86 0,87 0,86 0,88 0,89 0,89 0,88 0,88 0,89 5,5 6,2 6,0 6,0 6,2 5,3 5,4 5,5 5,7 6,0 6,1 5,3 5,3 5,8 0,9 1,0 1,0 1,0 1,0 0,8 0,9 0,9 0,7 0,8 0,8 0,6 0,6 0,6 2,4 2,6 2,5 2,4 2,4 2,1 2,2 2,1 2,4 2,5 2,5 2,1 2,1 2,3 69 69 69 69 69 71 71 71 72 72 72 78 78 78 6,2 7,4 8,4 9,5 10,6 14 17 19 30 33 37 49 55 62 1600 1770 1950 2100 2200 2700 2950 3150 4040 4325 4680 5730 6180 6700

B4J

B5J

B5J

6 poles230 300 380 450 530 610 760 850 930 1130 1300 1570 280 350 450 530 630 735 900 1000 1100 1300 1500 1800 B4J B4J 355 355 355 400 400 400 450 450 450 500 500 500 LA6 LB6 LC6 LA6 LC6 LD6 LA6 LB6 LC6 LA6 LB6 LC6 990 991 992 994 994 994 994 994 994 995 995 995 1190 1191 1192 1194 1194 1194 1194 1194 1194 1195 1195 1195 2219 2891 3658 4323 5092 5860 7301 8166 8934 10388 11987 14384 243 316 394 477 546 628 771 862 942 1143 1297 1567 95,4 95,7 96,1 96,3 96,7 96,8 97,0 97,1 97,2 97,3 97,5 97,5 0,83 0,83 0,84 0,82 0,84 0,84 0,85 0,85 0,85 0,85 0,86 0,86 5,1 5,7 5,8 5,8 5,8 5,6 5,5 5,3 5,2 5,7 5,3 5,6 0,9 1,0 1,0 0,9 0,9 0,8 0,8 0,8 0,8 0,7 0,7 0,7 2,2 2,4 2,4 2,4 2,4 2,2 2,3 2,2 2,2 2,3 2,1 2,2 66 66 66 68 68 68 70 70 70 73 73

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