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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

What is the difference between ground and neutral ?

TCS,

2 5295

How to calculate the multiplying factor for energy meter with ct ratio given

 1466

using in R,Y& B PHASE LTSIDE(415V)ct ratio 4000/5 WITH ENERGYMETR OF 1280 REV./KWH,240V.WHAT WILL BE MF OF METRE.

HCC,

1 2495

what is DG A,B,C,D check?

 1 3014

a induction motar has 30-35% exciting current at no load but in transformer it is only 2-3% ofbrated current why any reason?

century,

1 2768

in short circuit. test of a transformer 5 to 10% ofvrated voltage is used why??? if we use rated voltafe then what will be?

 1 2341

in an open circuit. test there is no load curent.. but secondary. ia open then no urrent have to flow but there a smaller current flows why?

Rubber Park,

4 4803

What is the use of starter in tube light fitting.how it works.

JSW,

3 6630

Why Exciter higher ferquency ?

Core Logic,

1 2809

what is the difference b/w UHVDC and HVDC(LIGHT)?

L&T,

4 4596

WHAT IS THE DIFFERENT BETWEEN MCB & MPCB? & HOW IS USE?

Gandour,

3 5042

How i can select current transformer and meters for the upgrading the panal..for 200kw to 600kw....i need to select monitoring and protection ct,s and apmpire meter ,kw meter too.

 1 2725

electromechanical relay type identification example : type=tjmh t-stants for j- m- h-

1869

how generator avr give to the input?

 1402

DIFFERENCE B/W NEUTRAL AND EARTH?

Genesis, IBC,

2 4784

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Un-Answered Questions { Electrical Engineering }

Pl.brief me about Electrical power distribution system from Main generating station to Industry.What is the use of in between station.

1517

which type of effect of turbine and generator reverse power protection ?

3684

What is The Resistance Formula

715

how ct burden,magnetising current,ratio and knee point voltage are related & derived

1688

what is the difference between linear choke and suction choke?

2085




What do you mean by the zone of protection?

554

if an insulated power and control cables of a running gas diesel gensets laid direct in an open trench i.e, trench bed is not rcc of a power house in which rain water, spillage water alwas exists and all power control cables remains submerged even when gas gensets of 480 kw each runningin on load. These power &control cables runs from power house to switchgear room through these trenches in which water remains most of the time. pl explain its merit & de-merit

1341

How to justify this statement ??? "Capacitors in series provide less capacitance but higher voltage breakdown rating for the combination"

1390

what is the differance between HT motors And LT MOTORS.

1471

The size and construction of bushings in a transformer depend upon?

1055

What is mean by hot and cold loop testing? What is the difference between them?

539

completed BE & done apprentice at tneb & having experience 6 years. want to get c license. will apprentiship & BE be helpful for getting c license. will i get any preference by showing this?

1116

what is meaning of 230volts ac 50hzs ac supply is it rms or maximum to getting ac 230v what amount of max voltage they will send

1483

why capacitive load is not used in routine life????any reason is there ??????

1054

how to minimize earth resistance upto 2Ω, if the resistance is 6 Ω ?

1368

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