Answer / k.prakashchandra

It is the form for seeking approval from electrical
inspector to charge /commission a new HT line

Define relative stability.

0 Answers  

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why wound rotor is star-connected?

4 Answers  

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Transmission voltage is kept 11KV,33KV,66KV,132KV,220KV due to form factor. What happen to 400KV and 765KV transmission voltage?

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what is isolation Transformer?

8 Answers   HP,

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Befor synchronissation of Generator what test to be carried out.pl.specify with reason.

3 Answers   Kanoria,

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Is there any design in the world a 220 KV transformer without breather …??????

2 Answers  

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factor to be considered for bus bar design

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What is the effect of positive feedback on stability of the system?

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Any one can explain if there is any harm from humming noise heard from air circuit breaker : we have 415 switch board having two incomers from transformers 3.3KV/415V , when bus coupler closed, and open one ACB incomer to work in one of the transformers, the current started hunting around 50 Amps, and heard humming noise from the air circuit breaker, although the load current was only 1200 amps while the ACB capacity is 2500 Amps, and the transformer 1600 KVA. The same didn't happen when taken the other transformer offline. Why this humming noise and current fluctuation? is there any implication or danger, bearing in mind that we just returned everything back to normal and stopped the maintenance of the transformer. Shall we go ahead and ignore this noise?

6 Answers  

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what is the difference between gas group b and gas group c electrical equipment construction wise?

0 Answers  

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why C T secondary are rating 5A generaly .

7 Answers  

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oil sample dielectric test gives the insulation rupture voltage at 26 kv. is this transformer safe to be operated . The working voltage is 11 kv

2 Answers  

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