Do you know how to measure the earth resistance? if so explain it

42 Answers   ABB, BEL, BridgeStone, College School Exams Tests, Dalkia, Dalmia Group, DEC, Electrical, Genpact, HEC, IOCL, JLL, L&T, MSEB, Saraca, Sical, Telecommunications, University Exams,

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How to derive detailed design of Suitable bus Bar for 100A for 6.6KV?

0 Answers  

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why do we prefer -48 volt instead of -24volt or -12 volt etc. ??

1 Answers  

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what are the values of VRY,VYB,VBR,Vry,Vyb,Vbr,Vrn,Vyn,Vbn for Magenetic balance test of 100 KVA and 63 KVA Distribution transformer

0 Answers  

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Who many reason of ignition fail ?

0 Answers  

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Why DG set is not installed in Terrace ??

0 Answers  

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What is static Device & Mechanical device? Is transformer a static device?

5 Answers   ABB, Emco,

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What is min and max voltage between earth and neutral/phase if it perfect earthing?

37 Answers   Epoch, ISS, ITC Infotech, L&T, Power Works, Statex, Sterlite, Wipro,

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in a 740 kw dc seperately excited motor field voltage is constant about 17.4 volts and armature voltage is500 volts dc. how it is possible to have two different voltages from single transformer of output voltage 500 volts? if any difficulty in question contact ajitsingh.kadian@gmail.com

1 Answers  

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what is the difference between scaler and vector control in drive and where it is to be used ?

1 Answers   Essar, TCS,

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What is the reason for low voltage in houses?

19 Answers   Maytas,

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what is the difference between oil surge relay and buchholz relay.

0 Answers   MPPEB, Suparco,

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