Answer / subhendu

Normally by thumb rule we can take, for Al cable it is 1.5 times(Amp) of its sq mm size, and in copper cable it is 2.5 times .

How can we check ELCB trip current sensitivity How can we check earth resistance value

2 Answers  

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In a distribution system,having 3phases & 1 nuetral.ecah phase to neutral is 230V,line-line voltage is 440V,but what is the voltage of each line.but it should obey the KVL law.

2 Answers  

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What are the questions asked in PRDC pool campus test?(bangalore)

1 Answers   PRDC,

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What are the components of a substation?

3 Answers   IOCL,

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in transformer star connection with neutral are shorted. is there is any effect.

1 Answers  

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will the power consumption remains the same when speed of the fan cnanges??if so y??

2 Answers  

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Explain the experiment on ward leonard method of speed control of a dc shunt motor.

2 Answers  

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DC Motors applications used in Lift/Elevators

8 Answers   IOCL, SCS, Usha Martin,

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how to calculate full load current of transformer & induction moter ?

2 Answers  

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How is the air circuit breaker quenching the arc. If it is by air means, where is it come from?

1 Answers  

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What Is HO factor in power selection

0 Answers   Wonderla Holidays,

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why neutral grounding transformer is used for generator and why it is not used for transformers?

1 Answers   UPCL,

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