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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

WHAT IS THE SETTING OF OVERLOAD RELAY AND UNDER VOLTAGE RELAY IN PERCENTAGE?

2 6723

what is the setting of locked rotor in HT motor ? (answer expecting in percentage)

2287

How we connect capacitors in Fixed Series compensation of AC transmission lines. Whether in parallel or in series?

3 6323

How do we calculate tranmission line losses of a 132 KV tranmsission line. Please give some quick tips?

2 6730

in a silicon diode we can measure .7v in a voltmeter.but why we can't use this voltage for using?

1917

We have 2 no. 4MW DG set. and GEB supply. But, we running, only 1 DG set. when we done APFC/Power factor setting : 0.90, then winding temp. Low. but when setting done : 0.83, then Winding temp. increase. WHY Why ? ? ?, plz give me answer.

4 7335

how can calculate static 3phase 4wire CT & PT operated energy meter constant when calibrating using refference meter suppose we have 11kv/110v PT and 30/5A CT, the meter constant is 160imp/kwh, where meter is showing MW energy? give me solution which constant i feed in my refference meter for calibration of energy meter?

3 21955

what are the different functions of mccb, rccb / elccb ?

2 8682

what is vch ?

CTS,

1 3941

What is load boxes ?

AMIE, PEPL,

2162

Please provide me detail cable voltage drop calculation

1 4896

how to calculation increase power factor for single phase

2296

how to calculation increase capacitor,increase power factor for three phase.

2179

What is basic fundamental for choosing NGR or NGT for any generator neutral grounding

EDF,

5 38323

Can we connect more than one NGR at a time of different rating of generators. what is advantage or disadvantage.

2 5893


Post New Electrical Engineering Questions

Un-Answered Questions { Electrical Engineering }

What will be the effect if I use inverter as UPS mood?

2200


Dear all, i completed M.E(Power Electronics & Drives) 2011 passed out having 78% so i need job in core side but i don't know how can i receive the calls from electrical companies and i uploaded my CV in naukri, times jobs etc.. In that iam not recieved any mails from good companies so give me best procedure plzzzzzzzzzzzzzzzzzzzzzzzz..... Thanks, K.Linga Reddy Email-id:-lingareddykmthm@gmail.com Ph no:-08015402078

1819


Why hydropower is called renewable source of energy?

1051


What test must you do before powering up a circuit that you have been working on?

1868


Why we specify TNC switch with 1NO 1NC ,2NO 2NC ? how we get connection.?

1773


How vfd saving power.

2030


1.What is captive power plant? 2.What is national grid?Give brief idea.

2155


what is the circutor?why we use it ?

2340


how does high earth to neutral voltage affect electronic equipment?

1548


What is relation between mu(nought) and epsilon(nought)?

1536


1.why should we connect the measuring instruments in l.v side in short circuit test of a transformer? 2.why the power factor is less in open circuit test of a transformer?

2074


can someone explain that how the speed of the protection system affects the fault level calculation?

2092


Hi Suppose we have a wye/wye transformer which is grounded at both sides,in this situation, do we have ay ground transformer? in other words, ground transformer can do any thing more (while we have nuetral wire in both sides)? As the last question, what about 3rd harmonic? we have two choices: first using wye/delta transformer + ground transformer and second using wye/wye earthed connection.in the former choice, we dont have 3rd harmoonic at the secondary side but what about Yn/yn conection? do we suffer from 3rd harmonic in the Yn/yn connection?

1969


What is the criteria that generally follow by distribution licenses to fix contact demand of their industrial customers?

1522


how withstand of hi-pot test outputs of transformer wire 2.5mm

1972