Is C.T will sense the current in both direction. As i know the C.T will sense the current in only one direction.

2 Answers  

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This is about the recent problem that we have faced in our project site. We have 6/7.5 MVA. 66/11kV three phase star - star power transformer. The neutral was solidly connected to the earthing mat. But because of high resistance of earthing mat (130 ohm on LV and 180 ohm on HV), one day LV side neutral earthing conductor melted and we had a huge damage. Can any one plz tell me what might happen when we connect power transformer neutral to the earthing mat which has high resistance (>100 ohm ) ?????

2 Answers  

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If mutual flux is 1.2wb & power factor is 0.8 lag , then what is the Useful flux of a transformer?

0 Answers   Nalco, NTPC,

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Why we use neutral cable just half from phase cable.Tell me briefly,please.

4 Answers  

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which motor used in electric train ans how much volt.

4 Answers   Trimax,

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What is the latest generation of circuit breakers called?

1 Answers   Focus, OPTCL,

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why starter use to on a motor

6 Answers   Emco,

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how to 2 phase supply from 3 phase

1 Answers  

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Compare salient pole and cylindrical rotor machines.

0 Answers  

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What is meant by harmonic distortion?

0 Answers  

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Which do you think is the most significant cause of energy loss in a factory?

0 Answers  

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A 3 phase motor, 440 voltage, induction motor. If we take out rotor from motor and if we give supply 440 volt to stator then what happens?????

20 Answers  

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