Answer / vikashsaini75

1000 Mva in india

Answer / k.prakashchandra

The maximum rating of tr depends on cooling.It can be
defined as the load at which the tr attains the maximum
allowable steady temperature .e.g. We have a power tr with
rating 100/80/60 MVA at AF OF/ OF AN/ON AN respectively.

Where -48 volt DC use & why?????????

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A powerplant has 8 gensets operating in grid parallel mode. In one genset sometimes there is pf variation and kvar variation. The plant operates in pf mode. When this variation is onbserved the load is stable, voltage is also stable, freq and genset speed is also stable. How will you check the functioning of pf card. What shall be the ideal output vdc of the pfc, from there it is input to AVR?

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what is the basic difference between capacitor and condenser ?

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Whether the vacuum contactor requires Short circuit protection?If No,why?

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why dc series motor high speed motor

3 Answers  

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