Electrical Engineering Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

How can I calculate the require lumen of a room. If I use Tube Light (40 W), Or 100 W incandescent lamp. Please give detail answer.

1 3723

WITCH CARDS IN USE IN FIRE CONTROL PANEL.

1977

WE HAVE A LOAD OF 55KW MOTOR ITS VOLTS 380 3PH AND ITS TAKING 100AMPS (ITS FULL LOAD IS 105AMPS)AND ITS CABLE IS 4CX50SQMM ,NOW ITS GETTING ABNORMAL HEATUP IN CABLE,PLZ TELL WHY ITS HEAT-UP?(CABLE LENGTH IS 15 METERS ONLY)

10 15986

If load current is 70amps or 50amps what range of CT to install for ampere metering

3 6452

where HT & LT capacitor uses ?

NTPC,

2 11381

i want to syncronise 5 nos of DG. How? pls reply

3 5839

I want single line diagram for AMF & DG syncronizing panel

7259

How can i calculate the Breaking capacity of molded case circuit breaker, is the breaking capacity of CB for Diesel generator shall be less than grid supply's breaker ?

2294

I have a 3 phase 600 volt prim. feed and a 120/208 sec. Isolateing tranformer .We are using this system for safety against shock . What is the proper grounding ?? Does the common on sec. get earth ground ???

1 3589

WHAT IS THE TECHNICAL SPECIFICATION OF C CURVE & D CURVE LEGRAND MAKE MCB

2743

why capacitance effect is predominant in underground cable transmission and inductance effect is predominant in over head line transmission?

3728

why insulation cost is more in underground cable than in overhead line?

2 3551

how can we calculate fault current of a line in a 6 bus syatem if the faulted line is known?

1 3680

different aspects of voltage stability

2133

HOW TO CHECK THE VECTOR GROUP OF A TRANSFORMER YD11?

Siemens,

3670

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Un-Answered Questions { Electrical Engineering }

What is star-delta transformer?

1256

In constant power region of 3-phase IM torque-speed characteristics, if frequency increases slip A does not alter B decreases C increases D none of above

2116

What is the mmf,rgt and ngt please brief completely

1693

give me applications of sequence bridges . (used in 3 phase un balanced systems)

2019

Why in metering Ct for ammeters ct secondary side is grounded for each Ct but not in case of CBCT (Core balance current transformer)..kindly some1 highlights the reason..is it because net flux is zero?

1486

Is it true that in the 3 phase transformer, the limbs of the core are at 45 dgrees to each other. if true, why?

2131

1. How many types of mangers? 2.How many types of capacitors? 3.pls tell me normally types alternator problems?

2414

what is the max. acceptable leakage current in 33kv bus bar

3078

How to confirm the Phase shifting Transformer VECTOR GROUP relation , as below ZNy11.45d10.45-ZNYy0.15d11.15

3323

What is the difference between indoor and outdoor transformer

5994

How to calculate the time setting for star connection in star delta starter? For example 10KW 3PH Induction motor.

2702

what is the importance of earthing system on the generators big capacity and small?

1845

What are the transformer losses?

1232

Whats the minimum value for I.R. that can be allowed for HT & LT alternators for operation?

4152

What are the factors which influence the choice of specific magnetic and electric loadings of a synchronous machine?

2143

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