Answer / nagesh.patwari

Due to stationary flux produced in core No emf induced when applied a DC supply sugnal.

A group of machines (wind turbines) connected with 33KV feeder and each machines are having individual VCB. The 33KV feeder connected with 110KV/33KV substation. The 33KV feeder tripped by over current at Substation and fault recorded at Substation as OC-R&Y phase. Same time the group of machines VCB tripped by over voltage, the fault recorded voltage was above 66KV by numerical Under/Over voltage relay. While grid drop time, this much of voltage hike is possible?

1 Answers  

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what is difference between fuse and breaker?

6 Answers   ABB,

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Which are the major Nuclear power accidents in the world?

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why ELCB's are not useful for operation theater equipments ?

4 Answers   Reliance,

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A separately excited dc motor having 2 ohm armature resistsance draws a current of 10A and torque developed is 20 Nm under rated field condtion. the speed of the motor under the rated field condtion , when it is connected to a 100V DC source and delivering 10Nm torque....

2 Answers   DRDO,

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could you measure current in parallel?

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Define de-sensitivity?

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1.why are not using acb 33kv ht side? is there any problem 2.what is difference between acb,vcb,sf6 breackers? 3.what is the function of invertor and convertor in ups?

0 Answers   L&T,

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who iz power minister ?? :P

1 Answers   IOCL,

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Why not connect relay Y phase for over current and earth fault

1 Answers   HB,

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How to identify 3 phases of 3 phase supply irrespective of there color????

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how to enter inverter parameter? without manaual?

0 Answers   Essar,

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