Answer Posted / ayid

why do you headic urself while the answer available on standard sheet of characteristics of cables.generally there's no fixed rule for calculations because of different &multy variables

What are the Formula of computing Back up Time of 500kVA UPS with 4 Battery Banks, each bank composed of 43 pcs of Batteries 12V150Ah. How to compute the Back up Time of UPS? We have also 3X500kVA UPS running in Parallel same composition as I write above.

1293

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what is mean by drives?

1957

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Which level of the Transformer oil got dielectric strengh? And why?

2188

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i have seen one 8.4 MW synchronous motor in a plant located in bellary it is fixed with brushless rotary rectifier ,anybody can explain its start up principle

1926

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Why auxiliary transformers are not connected in parallel in primary stations?

1377

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On a 3 winding transformer YNynd11, how do you apply REF protection to the Delta tertiary winding that is supplying auxiliaries to a substation?

4309

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In layman terms, what is the difference of Dielectric strength and dielectric constant when speaking of an insulating oil

2623

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What is turn ratio of a transformer?

1157

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what is advertised hop count

1724

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Why Stabilising Resistor used in REF circuit ?

3255

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What happened when capacitor connect series in ac circuit?

1418

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what is the difference between electrical choke and electronic choke?

2478

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what are the advantages and disadvantages of oil filled cables over XLPE cables

19324

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Practical condition in 400KV Sub station:- Breaker(open) , isolator(open), Earthing (close) at both end e.g A & B. Now Open A Stn Earthing than Open B stn Earthing (Which have a 50MVA reactor) , AND suddenly show R,Y,B phase 704KV,573KV,118KV respectively. Que is without closing of breaker how it is possible.???? My Whats app No:07621840498 for Further Discussion. Pls experts suggest.

2035

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what is d check in dg 1500kva

2064

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