Answer / fff

without grounding fault current not flowing in the earth ..so may fault current do not get closing path ... cant sensed by relay maybe.

How impulse levels are calculated that for 11kV impulse is 75kvp, for 24kV impulse is 125kvp ?

1 Answers   L&T,

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While performing load test on DC SERIES MOTOR, does the voltage decrease slightly. Why?

2 Answers  

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How earth fault & earth leakage equvpment are works?

5 Answers  

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WHY IN AC DRIVES,INPUT PHASE CURRENT SHOW UNBALANCE?

1 Answers   Adhunik,

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where can the transformer having vector group Yny0 be used??

1 Answers   GK Power, NEA, Petrotech,

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In Transformer testing at Shop test we normally test for vector group, open ckt.,short ckt. but what are the other test performed for transformer once it reaches at site.For e.g:if the transformer is dry having rating 1000KVA?

2 Answers  

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OHMS Law is only applicable for ac or dc or both circuiT?.

6 Answers  

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what is dyn 11

3 Answers  

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what is surge suppressor?

5 Answers   Essar,

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What are differences between Voltage, EMF & Potential difference ?

1 Answers  

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How to find HT side and LT side(of a transformer),with the help of a voltmeter?

1 Answers   Odisha Power Generation Corporation OPGC,

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What are the questions asked in PRDC pool campus test?(bangalore)

1 Answers   PRDC,

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