Answer / prakash dewangan

Because Y phase is less prone to faults. B phase is prone
to earth fault and R phase is prone to lightning. So Y
phase is more safe for wave trap.

what is difference between start imitation and start interlock for 3 phase motor protection ?

2 Answers   OPS,

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in telecom we are using neutral?

1 Answers  

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In directional earth fault protection for generator, one core balance CT is for residual current, what other CT is for, which is placed on neutral?

2 Answers  

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It is advisable 2 use auto-transformer if transformation ratio is-a)110KV/11KV,b)230kv/110kv,c)110kv/66kv,d) 400kv/230kv

2 Answers  

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why ELCB's are not useful for operation theater equipments ?

4 Answers   Reliance,

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Explain what is CBCT.

1 Answers  

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What is vcb?

3 Answers  

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Describe the control mechanism of missile launcher???

0 Answers   DRDO, ONGC,

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what is protection class current transformer.

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the need of star to delta anddelta to star

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Induction generator has = A negative speed B negative slip C negative voltage D negative current

2 Answers  

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grr resistance & contrator malt continuous

0 Answers   Pioneer Labs,

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