What are the disadvantages of LT AVR over HT AVR?

1 Answers   APTransco, Jindal, TNEB Tamil Nadu Electricity Board,

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how the rotating magnetic fieldis produced in induction machines??? give the correct explanation.is there any mathematical expression for the same?

1 Answers  

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Which type of control system is expensive — closed loop or open loop?

1 Answers   GE,

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How do the synchronizing lamps indicate the correctness of phase sequence between existing and incoming alternators?

0 Answers   VECL,

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why we use 630mm single core cable for transformer secondary side and why two neutral cable

0 Answers   Technicare,

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what is per unit calculation?looking for simple and strong explanation thk u

0 Answers  

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How to calibrate or test an LT Air Circuit breaker 440 volts, 35 KA, 800 Amps ?

0 Answers  

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I have 12MW gas engine based power plant its running parallel with grid. my problem is When cpp run in island mode(without geb) that time geb transformer power factor is 0.2 lagging. When cpp run with parallel that time power factor is 0.94 lagging So how can i maintain power factor ofgeb transformer in island mode 0.9 lagging?

1 Answers   SPCL,

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1.What will be stored in online ups EPROM IC?

0 Answers   IBM,

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tate and explain super position theorem

2 Answers  

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dear all, How do i increase UPS (1000VA)backup time ? i have connected 2 12v wold you please 120 aH battery externally. ups charge the lead acid battery only 12.7 volt. backup time only 10.00 minuts and gose off. can any one of you help me?

1 Answers   Technomax, ups,

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can anyone show me how the 3 phase power is supplied to socket outlets?

0 Answers   Bhel,

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