Answer Posted / vaibhav

1 Air circuit breaker
2 Vaccum circuit Breaker
3 Oil circuit breaker
4 SF6 circuit breaker
5 Air blast circuit breaker
6 Minimum oil circuit breaker(M.O.C.B)

Is the theorem applicable to ac sources?

1056

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How does an oscillator differ from an amplifier?

1171

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A 3-PHASE TRANSFORMER IS USED TO STEP-DOWN THE VOLTAGE OF A 3-PHASE, 11KV FEEDER LINE. PER-PHASE TURNS RATIO IS 12.FOR A PRIMARY LINE CURRENT OF 20A, CALCULATE THE SECOUNDRY LINE VOLTAGE, LINE CURRENT AND OUTPUT KVA FOR FOLLOWING.A)STAR- DELTA.B)DELTA-DELTA.

3066

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

2903

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What is cathode ray oscilloscope (cro)?

1134

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The gauge indicates the number of amps, but what about voltage? How voltage rating (for wire or fuse) determined?

1989

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current transformer balance the power level on both sides. e.g in case of step up, at secondary side voltage rise but current decrease and vice versa in case of step down transformer. but how this power level remains same in case of current transformer and voltage transformer

1613

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How can two 3 phase transformers of same KVA and Voltage be connected in parallel?

1910

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what is the difference between unarmoured & Flexible cable? How to identified?

6228

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description about dry type transformers

1903

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Why efficiency of generator is higher than motor at a particular load?

2084

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How to know about the rating(voltage and other) of induction motor if its name plate is missing at the manufacturing site.

3390

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i need the curve duty cycle and amper for (150 kva @50% dyty cycle) transformer turn ratio :19 and vin 400

2137

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How select ELCB for 32amp. socket having quantity 12Nos. We have to do this wiring in PLANT. Please Also explain the incoming cable specification.

1880

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100 MVA 3-phase alternator with earthed neutral has a reactance of 5 ohms per phase. what will be the fault MVA of generator.

2390

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