Answer Posted / bijay kuma bhoi

in star connection current is always same in starting and
running period ,so we can use fixed class of insulation
cable,but in case of delta this is not possible due to
changes of current .so all ht motors are conncted in star .

what are the ''pitting rings''and how cn they be controlled in a series generator

1861

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How much voltage we need to apply in 33kv cable during hipot test of cable

849

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What happened ,If 3 phase clearance not maintained in 33KV Line,11KV LIne etc?

2363

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How grounding is different than earthings?

1165

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What is ferro-resonance in electrical system? Why it occurs and what are measures to prevent it?

2236

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A double circuit with dog conductor 66KV Transmission line from wind farm evacuation to feeding substation having capacity of 25MW for transmission. Can same transmission network be considered for further expansion of Power & how much in MW. If we need to expand next 10-15 MW more will there any augmentation is required in transmission network? Kindly reply asap.

2198

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how to failure indution motor insulation & how to improve heat in motor insulation

1888

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How is magnetic leakage reduced?

1174

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Explain the following and how these are working with PLC Unit 1 I/O Module Card 2 Adaptor Card 3 Ribbon Adaptor 4 I/O bus 5 I/O Devices

1626

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how to calculate regulation constants for over head lines? and what are the regulation constant for raccoon conductor at different voltage level and different P.F?

1976

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Why there are some equipment(i.e:TV) that using 2-pin plug instead of three? What happen if there is current leakage? Are we going to get electric shock??

2193

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What is meant by short-pitched winding?

1209

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Transformer how to maintaince a check b check c check d check

2085

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What are the main faults of DC generators?

2999

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Mention what are the different colors on wires indicates?

1278

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