Answer / farzan danish

earthing resistanc should must be less than 1 ohm

Answer / nithya

generally electricl resisitance should be a 2 ohms. suppose
u are in a building the individual ohm is 1.2 ohm. and group
should be a 0.8 ohm.

What do you mean by an instrument transformer?

0 Answers  

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how to calculate efficiency of voltage and current controlled welding transformer?

1 Answers  

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1.what is surge used in power system 2.what is switching used in power system 3.what is lightning used in power system

1 Answers   Areva,

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What is the difference between Type test and Routine test?

10 Answers  

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why we take transformer reading in kva

6 Answers  

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how we can find of current direction(supply comming/out going direction) when a transmission line passing through sides.

0 Answers   ONGC,

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what is the effect if we add capacitor on DG supply, it has any loss or benefit.

6 Answers  

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if its possible for step up or step down DC volage directly ? possible means how we can do it ?

5 Answers  

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Why current leads the voltage in case of capacitor load? Why voltage leads the current in case of inductive load? Why both are with in phase in case of restive load?

3 Answers   TATA,

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what is the use of reactive power

3 Answers  

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how  do you choose the cable size as per amps rating & the voltage drop for the same.

0 Answers   C&W,

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Why can't we parallel the secondary circuits of two voltage transformers?

0 Answers  

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