Answer Posted / kamaleswaran

skin effect is the tendency of alternating current to concentrate on the outer part(skin) of the transmission lines as the inductance is high at the centre part.. this is completely absent incase of direct current..

What is the loss of power of transformer 220kv/33kv,63/80mva of % imp12.05 at 80%load

1839

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why can the rotor of 3 phase slip ring induction motor not be a 2 phase rotor?

2065

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what r the safety measures in UPS ? explain all?

2224

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I have an existing old MCCB. ABB Model SACE, the rating are: Ue = 660 volts, Iu =1250 Amps, 3 poles, Ith (max) =800 amps at 45 deg C. I need a circuit breaker for my 3 phase motors, 380 volts 60 hz. the supplier required the minimum ampacity of the breaker to be 911 amps. can i use this breaker with rating of Iu =1250 amps but Ith = 800amps maximum?

2320

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Is it possible to implement Restricted Earth Fault protection for a transformer without neutral CT?

4401

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How can we convert 11 kv to 440 volt without using transformer ?

1435

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what is the minimum pay scale for electrical engineer (building construction)in kuwait? plz revert back with yrs of experience & pay scale respectively.

2161

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if the motor rated speed is 950rpm. how to change the above rated speed? is it possible?

1419

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Which device of PlC does share load between DG sets when DG are running in perallel?

2077

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Please tell me the power flow from pmg to main rotor of an alternator (Including AVR unit)?

2033

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IN 1000kva transformer where the oil and winding temperature sensors is connected

2532

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The transmission does not have options: a)Partition noise b) Flicker noise c) resistance d) Short noise and reason

2444

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percetans

2193

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How LT megger works ?

2136

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What is the de rating factor of cable? What is the importance of the de rating factor in cable selection?

2096

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