can we connect both delta and star to the transformer secondary and for what reason?

5 Answers   Power Grid,

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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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1.What is the proper definition of power system stability? 2.some times a blue spark is visible in the secondary side of a distribution transformer at the contact position of bushings and fuse wire,why?

1 Answers  

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What is ST and specify its range of voltage.

0 Answers  

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what is the earthing condition between earth & phase.

3 Answers   ABB,

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what is the affect of earth's magnetic field on the frequency used in aircraft???

0 Answers  

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hi plz send me reliance placement papers..i.e electrical technical papers that have been asked in reliance test.

0 Answers  

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what may the reason for vector shift in a generator?

0 Answers  

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what is rms value?

3 Answers  

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what is full form of google

5 Answers   IBM,

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When PRV operated at power transformer ,can anybody tell me particular pressure for 50mva transformer plzzz.

1 Answers   BWSSB,

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how do skin effect is reduced when hallow cond or stranded cond are used ?

1 Answers  

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