in electric lamp what is ballast. y its needed to start & stop lamp. what is ballast ckt.

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What is the minimum percentage of power that a powerplant can support in ilanding mode ?

1 Answers  

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how i calculate the size in mm of the LT 4 core cable for 100 HP inductive motor pump

1 Answers  

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How can I calculate per unit (KWH) fuel (Gas/ Diesel both) consumption 1MW unit?

0 Answers  

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How do you reverse the direction of rotation of a FAN?

13 Answers   CPCL, IOCL,

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at what basis/standard we have to arrive the current density of aluminium/ copper in busbar?

0 Answers   ONGC,

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Why is negative feedback invariably preferred in closed loop system?

0 Answers  

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What is GD2(kg-m2) for Sq. cage ind. motor?

2 Answers   ABC, Essar, MMM,

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what work will do diffrential realay DG set

0 Answers   IG Petrochemicals Ltd,

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Resistance of a conductor in a close electrical ckt is practically zero why?

1 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 observed 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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How test for Ddo vector group test condition?

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