Answer / dhara. s

Marshelling box is generally erected at switch yard near the trafo & RTCC is erected at control room. MB is to marshell control cables from control & relay panel also from RTCC to OLTC & other supervision & cooling control system connected to transformer tank. RTCC panel is to operate tap & to supervise transformer heating & cooling conditions.

what is rotor earth fault protection scheme in hydro generator & what is dc field flashing ?

2 Answers   NHPC,

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ups and invertor battery selection chart and full formula

2 Answers   APC,

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Which power will flow first if we switch on a motor? Active or Reactive? How?

5 Answers   NPTC,

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Which has more losses, AC or DC??

4 Answers   Infosys, TATA,

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In CT,which terminal(s1,s2) need to be grounded?

2 Answers  

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If you don’t have coal, salt and copper, then how would you earth your connection temporarily at a camp site.?

0 Answers   Bajaj,

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please mention the minimum IR value for different voltage systems

6 Answers  

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What is relation between mu(nought) and epsilon(nought)?

0 Answers  

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What are the temperature elements?

0 Answers  

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what is the type of winding connection( star or delta) in 1HP to 5HP motors. How to check the motor winding connections( star or delta) if not provided in the nameplate?

5 Answers  

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why we can't use more then 50 hz in india ? Is it possible ?

7 Answers   DVC,

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what is SWA type of cable?????

4 Answers  

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