how to check a transformer insulation?

3 Answers   Kirloskar, Kirloskar Chillers,

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how did the testing of protection relays done through current injection

0 Answers   Bhel,

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is there a different b\w ground fault CB and earth leakage

1 Answers  

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When VFD is connected to a 3 phase main supply there is load current difference between incomer to VFD and outgoing from VFD.

1 Answers   Shasun Chemicals,

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There are a Transformer and an induction machine. Those two have the same supply. For which device the load current will be maximum? And why?

4 Answers  

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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

0 Answers  

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How to calculate electrical Induction motor heating and cooling time constant,11KV,2850,12P,SCIM

2 Answers   Bhel, Regal Beloit,

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why we use capacitor in lighting fixer

2 Answers  

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What is the difference between AC and DC injection methods for rotor earth fault protection

0 Answers   Asian Alliance Insurance, NBVL,

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is there any concept of armature reaction in Induction motor?

4 Answers  

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How to calulate the NGR resistance ?

1 Answers   L&T,

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what is negative current?

5 Answers   DTG, Siemens,

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