Answer Posted / dinesh

If the secondary opened , due to inductive property a very
high transient voltage induced at the secondary side as a
result insulation of secondary side brust and it became
damaged

what is the purpose of high speed earth switch in gas insulated substat

3045

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please send 5yearje solved papers on my email himmatsinghnathawat@gmail.com

1977

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Connection diagram for KW meter and  Kva meter

2403

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how copper and aluminium wires or cables are choose for current rating? please provide copper and aluminium wire selection chart for different current rating ?

2100

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How to calculate the volumetric capacity of a oxygen & Nitrogen gas Cylinder if pressure is 145 kg/cm2 & water capacity of cylinder is 67 liters.

2237

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What do you mean by ratio correction factor of instrument transformer?

1234

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which phase is preferred for connecting 1 phase vt used for synchronizing OHL? WHY?

2079

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How can find thermal state value in relay for calculate thermal overload.

1958

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Define bibo stability.

1121

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if 2 coil of 1000W connect in series and 200 v is applied across it . then what is the total power of coil when coil have only resistive load .

2012

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ASTM D 3455 - Standard Test Methods for Compatibility of Construction Material with Electrical Insulating Oil of Petroleum Origin has been used for Testing Transformer Oils with a product placed in it. Aged Control Oil has a Power Factor of 0.032% at 100°C. Aged Oil with a Test component has a Power Factor of 0.093% at 100°. Is this increase acceptable? If not why? How much increase is acceptable?

2076

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what is lrs tank water resistance.

2592

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what is the constructional difference between a power transformer and potentian transformer?

1808

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what happens to the supply voltage if there is any change in frequency?

6549

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please explain to me how to calculate current,voltage,resistance with formula??

1472

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