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Electrical Engineering Interview Questions

present we are having 0.8pf but I want increase it up to 0.99 so what is the formula for it and how can i calculate?

ABB,

4849

We have two parts in generator, electrical & mechanical. how it works?

TATA,

1057

how to convert psi into kilo pascal? what is the suction pressure & discharge pressure of chiller?

2446

how air lock will be removed from generators, how it happens?

6953

what is the d/f b/w dol & star delta starter.

3130

we have provided 30 nos. relay contacts in panel.I want to know how do we do the numbering for the relay contacts as per any applicable standards

1099

what is the principal of transformer?

3876

What is EHT(Abrebiation,Function,Voltage Regulation & how it works?

3705

In what voltage EHT works(133/132/33/66kv?

3655

How does HT work & Voltage required?

1244

what is bus coupler, where it used.

73567

What is fault level? How can be calculate the fault level?

2876

How to calculate cable size? How to O&m of vcb?

1372

sir what is the minimum IR value of 11 KV alternator?

10298

sir what is the purpose of SF6 in HT breaker and what is the pressure should be maintain in the breaker?

5752

Un-Answered Questions { Electrical Engineering }

When distance between two pulleys is not fixed, the tension of belt is adjusted by a) driver shaft b) driven shaft c) adjustment screw d) belt

1043

what is x'mer ,isolation x'mer & yltra-isolation x'mer?????

1266

If increased the frequency up to 1000 then what changes shows in voltage?

1545

What is shunt voltage and u v voltage witch one best

845

which cable is used for 15 Hp monoblock pump 3phase and service wire Distance is 210 feet please tell me cable size Armaured

559

why the protection turbo generators is most complex?

1021

What is the role of power pack in substation protection system?

1716

if we have a industrial load of 400 kilowatts with 415 volt AC then how much total harmonic distortion (thd%) should be acceptable for steady power system.

1089

sir please send me previous year questions of jspl of electrical section through which i could prepare myself fpr the test.

1000

What is the RME and explain the full form and what is the RME work?

1360

what is the IS foe lightning arrester?

1204

can we synchronize star system generators with delta system transmission line ? and how ?

1846

in india per day how much power is generated including all power station

924

is it possible for different brand of H.V transformers to run or operate in parallel to each other? if so how much disturbance can this affact the H.V bus bar?

1183

Electrical Engineering

977