when ac current flows thru d coil of a contactr,it energizes,magnetic field attracts d contact of the coil...nw wont dt ac current in d contct induce current back on to d coil thru mutual inductance leading to high currnt in d coil

0 Answers  

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I am working as maintenance engg. in electrical but i want to do carrier in electrical drawing.Tell me about that.

2 Answers  

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Why 3 over-current and 1 earth fault relay is used on primary side of transformer? Why 2 over-current and 1 earth fault relay in used on secondary side of transformer?

1 Answers   Adani,

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The specific heats of the gas at constant pressure and constant volume are respectively 1.0 kJ/kg K and 0.72 kJ/kg K; the value of R for the gas is

0 Answers   Caterpillar,

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what happend if the protection ct is by mistake put instead of measuring ct & vice versa?

2 Answers  

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what is the different between surgearrester and lighting arrester

4 Answers   HPCL,

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describe your self.

2 Answers   Amazon, Bechtel,

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where HT & LT capacitor uses ?

2 Answers   NTPC,

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how many types in CT & define it ?

6 Answers  

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IN MCCB AND MCB TERMINATIONS ARE IN-COMING ON TOP AND OUT GOING ON BOTTOM,IF WE TERMINATED INTERCHANGED TOP AND BOTTOM ITS WORKS?

2 Answers  

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what is the use of CAPACITOR in CFL lamp?

6 Answers   Areva, Autopal,

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What power factor maintain you maintain at u r organisation

14 Answers   Wheels India,

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