Answer Posted / ritesh gupta

VLL is 1.5 times of Vph

Define availability (operational)?

1155

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State and define norton’s theorem?

1251

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1) why a dg set shows variation of power factor and load when synchronised with other dgs? 2)Why the load sharing is not become equal in all dgs?. 3)When a dg set will not run on auto start?

2004

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thyristor controlled APFC panel design parameter?

1788

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3ph motor running with unequal kw and different pf what are the reasons

1868

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Why reactive power is needed in a power system? How is it being absorbed or delivered by alternators? For reactive power control we are changing excitation but reactive power absorbing or delivering related to stator. How these two are interlinked? i want a detailed explanation with necessary expressions and figures?

1914

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Actuality I have at home electrical panel with 220v 50hz, and I want to converter from there to 110v 60hz, to wiring on the half of my house. Also I like to keep another half of my house with the original 220v 50hz. What is the best and safety way to do?

1817

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sir plz send some previous year questions of jspl.

1938

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How I calculate the ELCB for circuit breakers?

2182

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What are the criteria shall be considers for sizing Fuse and MCB? If the rated current is 10Amps what should be the fuse size / MCB Size?

1639

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how braking & making capacity of circuit breaker are calculated?

2304

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Can anyone please give me the parameters , formula needed to calculate the circuit breakers for building services.Thanks

2142

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apti mainly on logical reasoning, verbal and non-verbal ability (70 percent) and remaining technical. I was in ee but technical had mech ques like on turbines and welding.

2181

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can anybody send the rrb chennai &rrb bopal question papers of 2006&2007.My exam is on 12 oct 2008.Its urgent

2051

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What is the best thing to protect the motor from running over full current. CT or O/L or pressure transducer at the given pressure rating

1543

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