Answer / kashkxh

because when 400hz is in the freqency the the speed increses
the light speed so lowers the size reduction

Answer / yuvaraj

required high speed.high frequency used getting high speed

Answer / sorav

because large value of frequency means,lower value of time,
so,signals are transferred with more accuracy.

Answer / joan serra

400Hz are used to avoid pilot and/or co-pilot epilepsy

what is mutual induction principle?

6 Answers  

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What is surger vector in 33Kv transmission feeder? We have AC power generator of 8MW which is paralleled with 33Kv EB grid. Some times our HT breaker gets trip off due to surge vector problem. How to over come it? Is there any device to observe the surge and avoid tripping?

3 Answers  

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we have provided 30 mA rccb to water cooler.but we feel shock in cooler body.what is the reason?

3 Answers   FCC,

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How to test the vector group of a Yd11 transformer? what are the relations to be checked between various vectors to confirm this vector group?

0 Answers  

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hi... Can anybody give me description of type-2 coordination, IP protection, NEMA standards ? Thanks..

2 Answers   KSEB,

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what is meant by impedance testing of transformer and why it is used

1 Answers   TATA,

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can we use 220 volt 15 w a.c. lamp on 220 volt d.c.

11 Answers   Philips,

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why neutral used in three phase motor connection?

3 Answers   BEL,

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What are the main significances of root locus?

0 Answers  

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if There is Short circuit in Power Transformer, what will happened to Buchholz Relay.?? How Buchholz Relay will respond.??

2 Answers  

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WHAT IS THE WINDING PROCEDURE OF ELECTRICAL MOTOR

0 Answers   GE,

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how we can to the synchronization in transformer. What are the conditions for that.

1 Answers  

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