Answer / amit

Function
The earthing truck has the function of connecting the
busbars in one
half-switchboard to earth. Naturally, the earthing
operation must be carried out
when de-energised so as not to create a short-circuit.

what happens when power factor leads or lags to electical or home appliances

2 Answers  

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what is a diffrence between MCCB, RCCB, MCB, & ELCB ? what is rated current e.g. on motor name plate indicated that is rated curent? what is full load current? If we run D.C. motor with mechanical coupling and we measure voltage on terminal it shows voltage or not ? same in AC also possible ?

5 Answers   Reliance,

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Hi i want to know that in generation station what we are generate either voltage or current

1 Answers  

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what is PWM in IGBT and how it works for drive.?

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on a three-winding transformer relationship delta-delta-star, on third winding why the relationship is a star? what are the advantages and disadvantages? Thank you and please help

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WHICH IS BETTER( FOR POWER SAVING)- ON LINE OR OFF LINE UPS ?

3 Answers   Punjab National Bank,

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why resistive load has unity power factor,inductive load lagging and capacitive load leading power factor?

3 Answers   OEG,

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why we are using auto transformer in sub station mostly???

2 Answers  

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what is the purpose finding power factor?

3 Answers  

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Explain what is rated speed?

0 Answers  

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what is advertised hop count

0 Answers  

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Transformer how to maintaince a check b check c check d check

0 Answers   DIC India,

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