Answer Posted / jamil ahmed

If the value found dielectric strength of Transformer oil
less than 40kv regeneration process of OIL will be required
to improve its dielectric strength value.

how does the terminal voltage of transmission lines increase when a capacitor is connected???? This happens not only in transmission lines but also in all circuits. How??? When a capacitor is connected in a transmission line, capacitor also takes energy from the same supply. But how is it able to increase the terminal voltage??? Practically What sequence of events happen during increase in voltage???

2171

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I'm generating a pulse of 3V with frequency 80Hz (12.5ms time period) and pulse duration 0.125ms and feeding it to a transformer since i want the pulse to get amplified around 60V. At the output amplification s happening but the pulse is changed to a spike, can you tell me what could be the reason? (an ordinary transformer 220V-12V stepdown transformer is reverse connected ie. now it is 12V-220V stepup and voltage amplification happens)

1884

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what is allowable ac mixing in dc

2096

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If UG power cable both ends are to be earthed or what? If not why?

1936

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WHICH SIZE A.B.CABLE IS USED FOR 11KV.

2189

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Write masons gain formula.

1207

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what is ground fault in ACB?

2075

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What are the effects of adding a zero to a system?

1283

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How many kinds of E.L.C.B and how to work E.L.C.B

2035

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For a stable system, where should the poles of a system be in a root loci plot?

1226

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The gauge indicates the number of amps, but what about voltage? How voltage rating (for wire or fuse) determined?

1968

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Define gain margin?

1175

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What is transient response?

1128

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I COMPLITED MY B.TECH AND 10TH CLASS WITH 70%MARKS BUT 12TH CLASS 55%MARKS..CAN I GET INDIAN RAILWAY RECUREMENT EXAMINATION?

2178

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In a large office how do we calculate required number of light fittings, assuming fittings are 4x18W or 2x36W fluorescent fitting ?

1870

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