What will be the average KVA rating of Auto Transformer for 75kw 415V , 3phase induction motor

2 Answers  

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What are the causes of electrical faults?

1 Answers  

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Can u explain : how capacitor act when the supply is given is a.c and d.c. I know that when d.c supply is given then the capacitor charges and becomes open circuited. But please say about when a.c is given. I have seen that when a.c supply is given ,it charges and discharges, But when we plug in capacitor to our daily supply and take it out ,then we join those wires spark will appear,which seems charge is present ,but when a.c is given it should charge and discharge

3 Answers  

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My requirement is 1VA,50/5A Current Transformer for Metering .If I select 15VA , 50/5A CT.Is there any possibility of Technical Problem ?

6 Answers  

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what are the duties of commutator in motor and generator?

6 Answers   L&T,

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How will polarity test of Dy5 Transformer ?

0 Answers  

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Why short ckt does not happen when solenoid coil connected to supply. as its a wire only.

1 Answers   Siemens,

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which type of A.C motor is used in the fan (ceiling fan, exhaust fan, padestal fan, bracket fan etc) which are find in the houses ?

25 Answers   Airtel, MPPTCL, USSA,

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0 Answers   Maples,

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why we use condenser in the thermal power plant, althrough the same vapour will be again heated

0 Answers   Bhel,

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what is mutual induction principle?

6 Answers  

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why we step/down voltage in multipul of 11kv?

4 Answers   Siemens,

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