Answer Posted / narayana reddy

1) Over Current prptection
2) Earth Fault protection
3) Distance protection

what is the difference between interconnection and intraconnections in the circuit diagrams

8339

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For a 6.6kV Motor it is recommended to do megger test with 500 V d.c and not more than 5kV d.c but the Hi voltage withstand test should be performed by 12kV AC. Why the dc voltage test should be limited but AC voltage withstand test could be with such a high voltage?

2275

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what is your aim

1859

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In our factory so many iron pillors are exists for supporting the shed/Hangar. If do more no of earthings at one piller instead of doing more earth pits in many locations and running earth strip around the hanger, I can save the money. Please suggest this method is acceptable as per Is specifications though the Earth resitance of the farthest piller is with in the limits as per IS specifications.

2055

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how to measure the current by compact digital equipment with dislay which fit inside any equipment

1927

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I Need standard operation procedure(SOP)for 500kva Oil type transformer oil filtration & Procedure for IR value checking.

2824

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describe the constructional features of an auto transformer and its principle operation

2297

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if we have 320KVA Genset kindly advice how much load we can put it.

1466

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What if the difference beween internal and exrteranal LBB?

1613

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what is magnetizing current test in power transformer

2678

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orifice sizing how done, checking & selection

1886

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

4964

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why we take movement of rotor always in counter-clockwise direction in 3-phase induction motors?

1896

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DEAR SIR/MADAM,CLEARLY EXPLAIN ABOUT CRAWLING AND COGGING EFFECTS IN INDUCTION MOTOR.

1838

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what is V.L.F. testing of power cable? do you know the voltage ratings, like for what rating and size of cable what rating of V.L.F. testing is used?

2292

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