How to calculate the size of earth cable to earth the neutral of UPS ?

0 Answers   N Johnson,

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What do you mean by a phase angel of instrument transformer?

0 Answers  

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Construction of ac motor?

1 Answers  

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What is cable size of motor if starting current is 15.6 Amperes??

0 Answers  

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how to design the heater in temperature control unit to heat 50KL of water?

0 Answers   SunMax,

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How to set a Zone 1 distance relay for distribution feeder?

0 Answers   Schweitzer Engineering,

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What is the diffrence between an ELCB(earth leakage circuit breaker) and RCCB(residual current circuit breaker)?which has higher degree of safety and why?

2 Answers  

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IN A HT CABLES i.e. 1.9/3/3 kv, what is the meaning of 1.9 and 3.3.

1 Answers  

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what is KA rating and how can we choose switchgears on applications

0 Answers  

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What are the types of earthing? Explain dagramatically.

3 Answers   Siemens,

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if a 3phase 100kva distribution transformer , 400 v,50 hz, 4-wire system is loaded at 160 k.w mostly 1-phase Lighting & Airconditioning split a.c load what will be the net effect on the power system in terms of voltage, powerfactor, current , efficiency of xformer

0 Answers  

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wat is d diffr btw shunt coil and trip coil in VCB?

0 Answers   NTPC,

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