Answer Posted / rashmi

Loose connection means der will b air ionisation in gap ie corona discharge so it may lead to heavy spark n flashing

I am interested to know what does 15 KVA DG set actually means? If I dont know the DG rating, is it possible to identify KW by simply knowing the diesel consumption?

2159

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Can anybody tell abt concrete encased earthing or grounding?

2055

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What is the rating of a circuit breaker needed for 300 kv load in 33KV supply line of 33/415 transformer ? Whether 800/1200 amp vaccum circuit breaker can perform for a 33 KV line in input in 415 volt in output of the transformer ?

1663

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Is there any specialised book to refer about fault level calculation both in MV and LV side??

2064

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HOW TO WRITE A QUENTION ANSWER? I MEAN SHORT OR LENGHTHY ? OR FROM THE BOOK AS BOOK..... SOME TIME WE GIVE A ANS FROM THE BOOK AS LIKE BOOK ND WE GET MINIMUM 60% MARKS OR MORE THEN....... THEN HOW TO FILL THE Q-PAPER?

2045

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How many types of losses occur in a transformer?

1152

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How do we calculate the Out put voltage of generator, after the excitation is being given?

1924

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What is the effect of atmospheric pressure & Temp; on efficiency of motor? Why NGR(Neutral Grounding Resistor) is used in 132/11 KV Transformer & how? What is the use of Auto T/F in Grid Station?

1898

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In which of the following case, the rotating magnetic field is reversed? A regenerative breaking B plugging C dynamic breaking D forward motoring

1959

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what is the stear deltaprinceple?

1875

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What are the insulation standerds for eg H clase and how many insulation standerds are there and its standerds??????

1951

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how ups works ? various parts of ups and working principle

1977

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why does rotor rotets?

2619

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How to design the earth grid for lightning protection in an industry

4653

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A power transformer 4MVA/11KV/0.415Kv has been out of use in 12years. what maintenance actions/test need to be carried out before energizing.

1302

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