Answer / loboreliance2003

The DC voltage rating for high voltage insulation does not
take into account RF coupling of high voltage AC Signals
through the insulation to grounded objects. It is found
that high voltage wire insulation must be de-rated by
approx. a factor of four for the high voltage frequency
levels used. For instance, to run a 10KV triangle wave at
1KHZ requires insulation on the test cables with a DC
rating of at least 40KV.

we know the value of the power factor is 0.8, we know the power factor is not depends upon the load ,then why we cant design the power factor in transformer ?

1 Answers  

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what is IDMT relay.

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How we calculate the current carrying capacity of H.T. cabel?

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If u have Powergrid model question papers Please send to below mail ID rajutheprince@gmail.com

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i have installed my solar site of 6.7kw and is working perfectly , can somebody tell me that how can i measure my solar irradiation kw/day/sq m ?

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What happens if ac excitation is given to the field of an alternator

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9 Answers   Bhel, EDA, Wind World,

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What is meant by soft starter used in motors?

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Hi friends. m 3 years drop. now d company asks in d interview d reason 4 my drop.what shud b d probable answers 4 that which may not put a negative impression.

2 Answers  

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Metal covered multiconductor cables shall employ a marker tape located within the cable running for its complete length in lieu of cable surface marking. Is it true or false?

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what is the fullform of mccb

10 Answers   Thermax,

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