What will happen if supply frequency change in Transformer KVA rating ?

1 Answers  

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when a airgap of the induction motor gets larger does it draw more current ??? does it power factor gets lower?

3 Answers  

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why we not using 230kv directly why we are stepping down and then stepping up

2 Answers   Siemens,

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dear all, in motor operation , motor is of 100 hp and bimetal relay setting is 130 amp, if relay is getting tripped on 120 amp balance current what can be the reason? Relay is newly replaced. I dont know but is there any frequency effect in thit case? Can frequency variation affect bimetal relay operation?

1 Answers  

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why ground clearance of EHV line is more than HV line??

2 Answers  

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Iin ESP why positive is grounded ? why not negative ?

0 Answers  

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is it necessary for 200 kva transformer to have marshaling box and cu plate earthing for neutral

1 Answers   Blue Star,

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I have a transformer whose primary operates at 230V, 50Hz for which the secondary voltage will be 12V, 50Hz. What will be the secondary voltage if the primary is fed with 400V, 8KHZ Signal?

6 Answers   ABB,

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is ac supply can store

0 Answers  

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What is the resistance of the field winding of a d.c. Shunt generator kept low?

0 Answers  

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What is the difference btwn grounding and earthing?

11 Answers   HAL,

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what is stalling of a motor?

2 Answers   BTCL,

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