what happen to the voltage and current in all phases when an earth fault occur in a phase in three phase three wire system(delta connected)...

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what is surge impedance loading?

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what will happen if phases are not shorted with neutral in transformer impedance test? and if neutral is not connected with ground?

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IF we have 500kva transformer & know the current on HT & LT side, how can we consider for its breaker?

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how do skin effect is reduced when hallow cond or stranded cond are used ?

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Write the force balance equation of ideal dashpot element.

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I have 500A load (WHICH IS SEPARATE MDP PANEL),an MCC panel with 4000A Breaker.Already I have 2500A load.Can I connect this load directly to the Busbar since I have PROTECTION IN MY MDP Panel ?

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HRC full from

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How to calculate cable size? How to O&m of vcb?

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Size of the power cable like 1.5,2.5,4 sq.mm which area calculated from whick area or how specified the size?

1 Answers   MRF,

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What are the temperature elements?

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HOW TO CALCULATE BATTERY BACKUP TIME & AH CAPACITY AGAINST UPS KVA RATING?

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