why we are grounding the neutral?

1 Answers   GE,

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Is a contactor (or master relay) required between incoming lines and a VFD? The question goes to safety. If a contactor were used before the VFD and an e-stop engaged then the motor will coast to a stop (i.e. VFD loses power) instead of stopping much faster if the VFD braking fucntion were used. It would make more sense to keep power on the VFD.

0 Answers   Pride Hotels,

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What kinds of decision are made about CT from it's Knee point(voltage & current)?

2 Answers  

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why we use to transmit the power in three phases intead of single phase ?

4 Answers  

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can any one provide some material?

1 Answers  

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control & auxilary circuits used for circuir breakers

0 Answers  

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what are adantages of OC and SC test over the load test?

5 Answers  

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what is the full form of FRL (3/20,7/20 EARTH WIRE)..????

3 Answers   Aster, Divis Laboratories, FRL, Gasco,

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Which type of moter is used in trains, what is the ratting of supply used explain Working principal?

2 Answers  

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How the line trap works in substation...?

2 Answers  

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What is the Diesel consumption between 82KVA DG Set and 180KVA DG Set for 1 hour.

1 Answers  

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i want bhel placement paper for electrical if anybody having pl send to my id kavitha867@myway.com immediately

0 Answers   Bhel,

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