what is the difference between star connected and delta connected motors

3 Answers   Welspun,

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mccb service sittings be done?

0 Answers  

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what is shunt trip coil? what was the function in rmu?

1 Answers  

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it is clear that volts equal to the current as per ohms law. is it appliable to the AC power or only for DC. if it is appliacable to AC in transformers when voltage increases the voltage decreases ????? why??????????????

13 Answers   Bhel,

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how we protect the motor & what are the components required for that ?

2 Answers  

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Can we see the poles in the motor?. if yes then how can we see plz tel me

2 Answers   MRF,

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why high speed tripping relay is used in protection circuit why not normal relay

0 Answers  

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We have isolation transformer 25kvA & ONLINE UPS 15KvA (3PHASE I/P,3PHASE O/P)where isolation should have connect,before UPS or after please brief.

1 Answers   DRJ ARDE,

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Dear all, Can anybody tell me that how to choose CT for a specific load? I have a 200kw induction motor, which ratio CT should be installed? Is there a formula or calculation that determines the CT ratio for a load? Regards.

2 Answers  

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why generator and t/f ratings given in kva & motor rating is in KW?

6 Answers  

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what happens to the supply voltage if there is any change in frequency?

1 Answers   Gridco,

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why the autotransformer burnt while stating the pumpmotor?, In starter and motor there was no abnormality.

4 Answers  

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