Answer / k.prakashchandra

Nothing ,you can earth any polarity

why did the BDV test in transformer?

2 Answers   Jindal Steel and Power,

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what is the diffrence between capasitor and battery?

2 Answers  

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why we used servo motor insted of inducation motor?

1 Answers  

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What is the Difference Between the SCADA & PLC ? Both it also control and Supervise Then what Special in Scada & PLC?

1 Answers  

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Why there is a current in neutral line

3 Answers   Honeywell,

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a.)Ammeter and Voltmeter read rms value or avg. value ? b.)What are symmetrical and Unsymmetrical faults?

2 Answers  

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if AVR fails in D.G set, what will be the effect?

7 Answers  

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What is the Difference Between MCCB & ACB & VCB

4 Answers   ABB,

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An 11kv system consisting of an underground cable to a sub station about 300 meters away was shut down for about 10 hrs. On energising, it tripped off on earth fault about 10---20 mins later 6 times but since than it is not tripping.its already 3 weeks now. The SPAJ was found to be fine. what could be the cause.No test had been done to determine the cause of the trippings till now because of demand.

2 Answers  

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what is the diff. btwn. electronic regulator and ordinary rheostat regulator for fans?

3 Answers  

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what are the effects on an power plant and consumers if the power factor is increased or decreased?

2 Answers  

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1.Why hydrogen used for cooling in generators 2.Why electrical equipment protected by ground 3.Why earthing for transmission line 4.What is rms value of half wave rectified square wave. If Rms value of actual wave 2amps.

1 Answers   Power Grid,

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