Answer / k.prakashchandra

EFR is usually set at 20 % of OCR.The earth fault current
is V/ Z of the line + ER value of the support.But you can
not expect this calculated earth fault current.

What is the recommended voltage gap between Live and Earth and ,Earth and Neutral.If these are exceded what is the solution.

2 Answers  

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HOW TO CALCULATE THE CAPACITOR RANGE FOR LOAD FOR PF IMPROVEMENT? EXPLE:FOR 65 HP LOAD HOW TO CALCULATE CAPACITOR RANGE?

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What is the effect of electric motor stuck in star configuration,

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Normally the starter used to reduce the starting current.but the dol starter do not it,so why we use it?

4 Answers  

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why transformer rating comes in kva?

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how i decrease the neutral to ground voltage , thats i read 7v on my digital meter.i dont know about my earth pit.

2 Answers  

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How one can say about a device (e.g: a light holder contains 20 or 30 L.E.Ds which glows when power supply is off, from which source they are getting the supply..... battery or capacitor) without removing and opening up its case ?

1 Answers   CMC,

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why transformer has more efficiency compare to rotating machine?

3 Answers  

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what is the safety of ACB & VCB and how can this work and how can the service the ACB & VCB parts name with picture

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5MVA TRANSFORMER SUDDENLY FAIL WITH THE PRV TRIPPING AND LARGE AMOUNT OF OIL SPREAD OUT? SO IT CAME BACK WITH THE REPAIRING WITH REASON THAT IT FAILS BCOZ OF TRANSIENT EFFECT? SO PLZ EXPLAIN HOW DOES IT HAPPENED?

1 Answers  

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1.difference between sts & ats? 2.what is fm200 system brefly explain?

1 Answers   Ericsson,

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What is the different between Insulator & Di-electrict?

2 Answers  

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