Answer Posted / k.prakashchandra

Synchronous speed= 120xf/p .p=120f/n Number poles will
be0.36 for 1000rpm and 3 hz

What type of pipe material G.I or M.S is used for sprinkler system?

9282

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Could Please Explain briefly. Why used stabilizing resistance series with High impedance bus differential protection relay.

1796

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how to select automotive wire by mathematical equation with given current, vlotage and resistance

2368

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temp of cast resin 1500kva tx formerwent up to 138.c but came down very fast to about 100.c within 20 mins when load was reduced from 70% to 60%

1925

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why not starting switch first connect in direct on line starter?????

1949

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We have 750KVA DG set, we want to introduce REF relay with 1250/1A,CL PS,Current transformers.The lead distance of 2.5mm copper flexible cable from CT to relay is around 5mtrs.We would like to know the knee point votage(VK) & IM calculion for CT's

1931

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what is the ground fault relay,which purpose it will be use,clearly tell me plz

2084

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What current flows in the transformer primary when its secondary is open?

1268

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1.why should we connect the measuring instruments in l.v side in short circuit test of a transformer? 2.why the power factor is less in open circuit test of a transformer?

2082

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what is mean by kneepoint voltage? when it will happen? ( my doubt is, if CT secondary is open means ct get saturation or blas? what are factors are required for calculations? plz give currect anws:

2039

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solor panels arrange some angle,panel is flat fitted energy was produced or not why?

1912

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What should be the values of settling time, peak time, steady state error, overshoot, rise time, MPOS (Maximum percent over shoot) to keep the system in transient state, to keep the system in steady state ?

2265

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state types of reflectors in illumination engg. ???????

1949

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mccb service sittings be done?

1821

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The capacitive reactance of a capacitor of 1/(2(PI)) F at 10^3 H is

1854

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