Answer / pratik

When motor is overloaded for longer duration it's current Ia increases which cause heat in winding and as the heat increases the flux produced by the winding comes to saturation at one point,and so the motor stops to rotate.

Why NGR is required for 11Kv geneartor in power plant

2 Answers   AB Inc, ABB,

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differentional compound gernater used for wielding porpose. why????????//

2 Answers  

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What is meant by soft starter used in motors?

4 Answers  

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anti pumping relay function

3 Answers   Hofincons,

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please mention the minimum IR value for different voltage systems

6 Answers  

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where would be tap changer in transformer & why?

2 Answers   Kentz,

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How o select the electrical fuse?.What are its characteristics.How to select the material od fuse?

0 Answers   BARC,

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When we use a multimeter, while checking continuity of a closed circuit , what is happening inside multimeter, how it is working to produce a beep wheather it is closed or open.. is there any internaly voltage/current source inside multimeter?

3 Answers   TNEB Tamil Nadu Electricity Board,

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how to calculate micom relay earth falt time and current sertting

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Electromagnetic torque developed by the motor is compared to shaft torque. A less B same C depends on motor design D more

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Why the steam turbines are run at high speed where as the hydro turbines are run at low speed?

1 Answers  

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What is tranformer differtial?

0 Answers  

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