why we are used D.c. voltage in L.T.side or controling side.we can use UPS also ,in place d.c. voltage

5 Answers   ABB,

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what is rotatng magnetic field in case of three or multiple phase alternating current machines???

1 Answers   NHPC,

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why ELCB's are not useful for operation theater equipments ?

4 Answers   Reliance,

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how can we calculate the ampacity of the electrical wire/cable. and what are the factors must be considered. pls. elaborate.

0 Answers   Webel,

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What is the most accurate way of testing ELCB?ELCB is better than RCD?

0 Answers   GECO,

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if there is nutral in phase why we use earthing wire and grounding? even at fault condition the fault current flows to neutral (it is a lower path)

1 Answers  

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What will happen if we do not provide earthing to the newtral of a power system ?

2 Answers   Jindal, NPCIL,

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What is maximum permissible length of cable from transformer (33kV/0.433kV) HT side to HT panel which contain VCB? In which standard i shall get this information.

6 Answers   MSEB,

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What is mechanical interlock?Explain the uses?

2 Answers   HSL,

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Is it possible to run HT motor through LT VFD (LT VFD supply given to Transformer LT side and transformer HT side connected to motor)

1 Answers  

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i am going to correct power factor of 1600kw induction motor,when i calculate capacitance of capacitor it is three time more in star connection than delta. if motor is star connected which connection i shall adopt for capacitors and reason for adopt this connection

0 Answers  

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What is the general power factor & min. power rating of TV,LCD type TV, CRt type TV, Scanner, printer?

0 Answers  

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