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Bharat Bijlee Arrow TEFC
Voltage variation : ±10%, Frequency variation: ±5%, Combined Variation: ± 10%

Enclosure :
IP55

Motor Division - Energy Efficient Squirrel Cage TEFC Motors

The BBL range of energy efficient motors Type " MH" are from 1.1 Kw ( Frame 90S) to 18.5 ( Frame 160L). Use of these motors can lead to substantial reduction in energy costs. The ayback periods are in the order of 3 to 6 months depending upon the usage. Even replacing existing motors with EE motors in power intensive industries gives paybacks within 1 to 2 years.

Salient Features of Energy Efficient motors
Efficiency higher or equal to I.S. 12615

Near uniform efficiency from 50% to 100% of full load

Insulation class F. Temp, rise limited to 70°C over ambient of 50°C.
Bharat Bijlee

Click Here for Technical Specifications

Efficiency Class :
As per CEMEP / IEEMA standard, motors with higher efficiency levels have efficiency class'eff2' (Improved efficiency) and 'eff1' (High Efficiency). All BBL Standard motors conform to efficiency class 'eff2'.

The efficiency of these motors are higher than or equal to the values specified in IEEMA 19-2000. IS 12615 is under revision and the draft standard has the values of efficiency as specified in IEEMA 19-2000.

The performance of 2 and 4 poles are given. Performance of 6 and 8 poles are available on request.

EFF2 (Standard Energy Efficient Motor)

Salient features of TEFC Standard Motors


BBL motors can be continuously overloaded by 10% or can be used upto ambient temp. of 55°C. Temperature rises will be as per Class F
All motors are with degree of protection IP55
All motors upto 160L frame are designed for 50°C ambient.

2Z Bearings are std. upto 180L frame which are filled with high temperature grease Suitable upto 140°C

on line regreasing provided from 225 Fr onwards.

SKF or equivalent make bearings are used. These are directly procured from the Bearing manufacturers.

Terminal boxes are large and can be rotated in steps of 90°

T Box location can be changed from RHS to LHS at site by reverse assembly in frame Sizes 90 to 160L.

Motors are dynamically balanced with half key.

All foot mounted motors are with integral cast feet.

Outer bearing covers are integral with end shield / flange giving improved IP55 Protection.

V Rings are used in IP55 motors. No reduction in efficiencies as compared to IP44 Motors.

Additional anti tracking protective coating of air drying varnish is applied on the winding overhangs.

Cooling fans are of aerodynamic design resulting in low noise and are bi-directional.

Std. Motors are suitable for mounting with any shaft orientation

Product Range :
Standard motors 0.12 KW (Frame 63) to 132 KW Type `MA' (Frame 315M) » Energy Efficient Motors 1.1 KW (Frame 90S) to 18.5 KW Type `MH' (Frame 160L)

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