what is ignition?

1 Answers  

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In a star-star connected h.t transformer why we use NGR on the secondary (l.t)side.

3 Answers   Star, TATA,

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What is the difference in calculating size of AC cables compared to calculating size of DC Cables? Usually DC Cables are larger than AC Cables although they have the same ampacity. Why is it?

0 Answers  

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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 resistance value of earthing pit and why they are connected?

6 Answers  

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difference between buscoupler & bussection?

1 Answers  

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what are different types of alternator and discuss about the methods of cooling

16 Answers   Bhel, Jindal, L&T, Nalco, Vedanta,

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For an 100kw generator, only 50kw of load is connected. Will the generator generate only 50kw or 100kw. If it generate 100kw what happens to rest of the 50kw. What happens if we connect more than 100kw of load?

2 Answers   L&T,

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which motor used in electric train ans how much volt.

4 Answers   Trimax,

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What is the function of Igniter in 250 watt HPMV street light?

1 Answers  

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1.WHAT ARE TRANSMISSION LINE LOSSES DURING WINTER AND SUMMER SEASON? 2.WHAT ARE THE CAUSES/ 3.WHEN THE CORONA IS MORE?.,WHETHER WINTER OR SUMMER? 4. WHAT IS THE PERCENTAGE OF LOSSES IN TRANSMISSION LINE?

1 Answers   Coastal Energen,

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

0 Answers  

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