What is Hot reserves and spinning reserves?

1 Answers  

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How to maintain ac plant?

0 Answers   HCL,

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what is dry and wet frequency withstand voltage? why & where it is used??

0 Answers  

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In Swinburne's Test on D.C.machines, why the efficiency is more when the machine runs as generator than when it runs as motor???

6 Answers   College School Exams Tests, GE, MVR, Practical Viva Questions,

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How out of step protection relay works?

0 Answers   APL,

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Explain difference between stand by earth fault and residual earth fault protection?

0 Answers  

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if you asked to choose a ckt breaker from MCB & MCCB for 32A which one will be best and why??

7 Answers  

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what is the working difference b/w softstarter and Variable frequency drive ?

6 Answers   Parle,

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Why Diffrential and Ref relays are used together although Diffrential relay can protect Pri and Sec of Transformer

1 Answers   Qatar Gas,

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what is servo motor and how it works?

0 Answers   Godrej,

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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?

0 Answers  

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i have 6oo kva dry type transformer and its neutral is not grounded even body of transformer ground i want to know it is safe or not ?

2 Answers  

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