Answer Posted / ramu

50 A

Why space heater is required for each verical bus bar chamber? if one space heater is adequate or not for anti condensation?

2480

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Explain the iniluencc of short circuit ratio on the pert'orniancc of synchronous machine.

2148

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in ring main system we use the isolater b/w transfer bus and main bus if we r not use isolatar than wat will be the effect in our sys.

2028

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how to calculate the capacitor to maintain power factor?

2101

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sir i have a car stereo system and there is jack on him so can u tell me a way to find out their power terminals on the jack or on the circuit board"

1963

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i want to know how to determine that a surge arrester work properly in 11kv system. and how to test a 12kv surge arrester

2123

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What is hipot test procedure?

1411

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please send me previose rrb junior engineer qustion papers

2091

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can anybody sent me power grid questions. what subject should i prefer for preparation?

2067

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if the motor rated speed is 950rpm. how to change the above rated speed? is it possible?

1367

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Difference between ac parallel circuit and ac series circuit?

2047

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What are the causes of unbalanced current on 34.5kv feeder Ia=0.05,Ib= 0.25, Ic=0.15 and In=0.27 prior to tripping current are balance?

1689

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What is UPS and How do you maintain the UPS Maintenance? Brief Description on UPS maintenance.

2541

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why asa method ZPF method is more accurate than ASA method?

5753

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Starting times for soft starter & power factor is thier any standard or datas available in manufactures list. Kindly suggest.

1872

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