Answer / ashwani malhotra

The question is somewhat wrong. Because high voltage power
frequency depends upon the rated voltage not on the
capacity. Like As per IS 2026 for 12 kv level specified
value is 28 kv.So for detail refer to IS 2026 part I

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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can any tell me how to do wiring connection in L&T 3ph 4wire E301 CT operated energy meter, what is P1,P2,P3,P0. M1,M2,M3, L1,L2,L3.

2 Answers   Bhartiya International,

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In dc ckt. 24v or 110v, which one is more efficient and why?

0 Answers  

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PLZ sent the previous year question paper for GET in NHPC on my EMail id ppshanker@gmail.com

0 Answers   NHPC,

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What is transister define the transister ammiter ,base, colector.

0 Answers  

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why SCR use in power plant

1 Answers   Edison,

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How is a 100 MVA transformer cooled?

9 Answers  

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Give the selection criteria of a 3 Phase transformer for industrial purposes ?

5 Answers   NDDB, TATA,

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why weight is put on pulley?

1 Answers  

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we can conformed the vector group of the transformer. How?

0 Answers  

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what is the relation between currebt & voltage.

8 Answers  

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sir please tel me how calucalte kwh if home taken load 30ams how maney kwh taken per day.and 3phase motor 5hp per hars how maney load teken and how mach kwh and forward me to electrical table for calicalte kwh and kvr and kvah

1 Answers  

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