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Can u explain : how capacitor act when the supply is given is a.c and d.c. I know that when d.c supply is given then the capacitor charges and becomes open circuited. But please say about when a.c is given. I have seen that when a.c supply is given ,it charges and discharges, But when we plug in capacitor to our daily supply and take it out ,then we join those wires spark will appear,which seems charge is present ,but when a.c is given it should charge and discharge

3 Answers  

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what are different type of triping equipmen like MCB,MCCB and their differences

3 Answers   ABB, Schneider, UPPCL,

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is this the formula of building wiring to get the main breaker.Watts/volts*.8%+higher motor*(25%)=ampere. yes or no or send the correct formula for building wiring.

0 Answers  

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why dimmerstate always connected in star connection? what will happen if it connected in delta?

0 Answers  

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Why do we generate 3 Phase AC Supply? It is possible to generate 4 Phase and 5 Phase explain it?

3 Answers  

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Calculate the demand in KVA for a three phase 440V power source drawing 1100A current

5 Answers  

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What are the diferences between ELCB and RCCB

5 Answers   L&T,

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what happen when dc shunt motor field is sudden open in running condition

34 Answers   APGenco, Bhel, IIT, JMRC, TCS,

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

0 Answers   N Johnson,

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For 33 kv HT line how much amps fuse to be fitted pls explain with formula

1 Answers   Suzlon,

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what is the effect of leading power factor

3 Answers   Aurobindo, R L Steels and Energy,

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Why ACB is used in LT why not in HT and why VCB is used in HT why not in LT

1 Answers   GE,

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