Answer Posted / hiren

220kv

Can a generator runs after getting 1st stator earth fault.

1355

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All tape of electrical questions Answers tape of motor transformer e.o.t crane

2583

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The slip during plugging operation is given by= A 1-s B 2+s C 1+s D 2-s

2791

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What is the lower limit of break-down voltage of converter transformer.

1855

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What descriptive information does the NEC require to be marked on all conductors?

1950

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1. transformer design formula ? 2. how to calculate the primary turns and secondry turns ? 3. core types ? 4. how to find the primary current and secondry current ? 5. how to calculate the stacking factor ? 6. range of fulx density ?

11059

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How to calculate capacitor bank value to maintain unity power factor with some suitable example?

1062

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What is Surge Capacitor? Why it is use in Generator Circuit Breaker?

5072

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How to know the Max. current caring capacity of the cable by its size ?

1590

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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.

2028

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Why the dc voltage drop during starting of emergency lube oil pump? The Voltage drop from 135kv to 125 kv for one min. before re-establish to 135kv?

2254

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How to decide cable tray size?

1079

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Explain RLC circuit?

1118

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Which are resistive loads & which one are inductive loads : Refrigerator, Split air conditioner, ceiling fans, well pump, fluoresecent bulbs, T.V, CRT Monitors, Adsl Routers, C.P.U, Printers, Deep Freezers, Speakers, DVD Players, Microwave oven etc. ? Output Power for these Appliances Would be same like this : P = V * A * P.F Or would be changed ? thanks

3896

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use of PIR in ehv breaker

2098

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