The error in a single phase energy meter where pressure coil lags behind applied voltage by 88 degrees and pf is 1) upf 2).5lag

1 Answers   GATE,

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in most industies hormonics present up to some level. what is limit ? and there effect?

4 Answers   Bhel,

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which relay is used on long transmission lines

10 Answers   ABB, Bhel, Student, Tata Steel Limited,

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What is the Different between CT Class-0.2 & Class-0.2s ?

3 Answers  

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what is shunt trip coil? what was the function in rmu?

1 Answers  

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wat s the electronic device used in the fan regulators recently?

2 Answers  

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Differnce between Analog & Digital

1 Answers  

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WHAT IS DIFFERENCEN BETWEEN CURRENT AND VOLTAGE?

5 Answers  

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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?

1 Answers  

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Why carbon brush used in dc motor also why its not used in ac motor?

2 Answers   RRB,

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what will happens if one phase is missing for 33/11kv power transfomer and why?

0 Answers  

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what is the acb tripping & closing voltage.

2 Answers  

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