Answer Posted / pravesh

h.t. cables are joint by using h.v. straight througk joint
if it is cable and then heat shrink by using the
insulation .
l.t. cables are joint by using l.v. lugs and covered with
insulation and heat shrink or may be taken to H pole
structure to join with thimbles.

how to calculate the no load current in transformer?

2463

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I have 2500KVA transformer delta/star,13.8KV/380V provided with LV 4000A breaker. Already I have 2300KW motor feeder with a full load 90%. Is it possible to connect another 1600A from that breaker? If so how the calculation is done?

3763

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How to calculate size of HT breaker with the help of Amp (current)? Please provide answers with examples.

2280

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How you will determine the volume of oil in a particular Distribution transformer.

1824

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how can we select the type of wire.what factors we have to look on it , do we have some formula to calculate it. please guide me on it

1899

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What is meaning of out of phase (making & breaking) capacity And how to calculate

2146

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What is current divider rule (cdr)?

1283

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Why does the speed regulating system adopting I controller have no steady-state error? In this single closed-loop speed regulating system, when the input of the I controller Un=0, what is the output voltage of the regulator? What factors do the output voltage depend on?

1822

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What is negative sequence over voltage element?

1897

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

1880

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what is electrical machines

3602

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what is smart grid? why we use it? explain in detals bcoz i want give presentatin from it....

1901

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we have 3.5MVA-11/6KV transformer. how can we calculate earth fault current and NGR calculation?

1481

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how is capacitor bank look like

2348

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How we can recongnise the phase displacement of transformer connection between primary & scondary...plzzz explain it with example.........

2454

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