Answer / mn krishnamurthy

usage of lot of frequency drives and votage regulatiors with IGBT and SCR for heavy loads with start and stop and linear varying voltage for speed control created Harmonic currents

How much the fault level of 11 k.v.,22 k.v., 33 k.v. (in Maharashtra- M.S.E.D.C.L) for calculation of short circuit current & selection of h.t.cable.

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i am electrical and elctronics engg passed out in 2009 want to attend for reliance placements.plz send me apttitude ,technical and hr question answers to my mail plz. my mail id-kat.bindas@gmail.com

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What is the normal value of delta in rotor angle stability or transient stability? Why it selected so?

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Is better to supply the voltage for static exciter from the auxiliary power source or from the SG terminals? And why?

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cab we add capacitor bank with generator to improve power factor or not??????

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ganaretors A check B check and C check details

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Hi, We have have the major losses between BBT ( Bus Bar Trunking) to LT Incomer & LT to HT incomer, how to arrive the losses?

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why we don't discuss power facter in dc?

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suppose MCC (Motor control center)panel work on field the relay on this damage or not work and earth fault occurs in this and no indication in relay panel given below. than MCB trip or not and what effect the panel how find relay will damage or not work.

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is the secondary voltage of current transformer greater than primary voltage,,,,,,,,] give the example with ct burden,current ratio,and primary and secondary side voltage?

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What is mean by powerfactor. What is the difference between leading and lagging power factor?

2 Answers   HCL,

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Please tell me in DETAIL about the following 3 types of fuses or recommend me a good power system protection book or a website link ? 1.Dropout Fuse 2.Striker Fuse 3.Empulsive fuse (not sure if its impulsive or explosion fuse , sorry)

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