On what basis the the size of Lightning arrester for buildings are selected ?

0 Answers   KGD,

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How to select a D.G set for calculated load of 110kW..?

7 Answers   Shakthi Power Systems,

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what are the various types of towers used in transmission line

12 Answers   Power Grid, UltraTech,

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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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we have one ups its neutral is not earthed.its one distribution MCB has a earth fault.but we can not put off any MCB.so how to find out that in which circuit is earthed without isolating the breaker.

3 Answers   CFCL,

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what is two point starter?

0 Answers   SGF,

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How many devices can be connected in one zone of FACP

0 Answers  

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What are the possible causes of REF operation on a power transformer

4 Answers  

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What is 11 N1 and 12 N2 in single phase Transformer ?

0 Answers  

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why Current is lead 90 degree and voltage is lag 90 degree in a capacitor.? why Current is lag 90 degree and voltage is lead 90 degree in an inductor.?

0 Answers  

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WHAT HAPPEN IF TRANSFORMER HAS GIVEN SQUARE WAVE SUPPLY

3 Answers   APTransco, NTPC,

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What is ramp signal?

0 Answers  

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