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Electrical Engineering Interview Questions
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WHAT IS THE REASON,WE USED THREE CORE CABLE INSTEAD OF THREE SINGLE CORE CABLE.

 2 3671

why we connect the capacitor bank in star , not in delta in any system

2 5636

what happen if we supply 220v dc suppy to the bulb or tube

 2 4368

what is pulverisation

 2 3418

what is AVR? what is the function of AVR?

 2 4673

in railways why we use the power in 10,20 30kv,why not in the multiple of 11kv

 2 4013

Is it possible to interlock between ACB & MCCB?

Areva,

2 9468

How i can calculate current of cable according to ares?

Pharma,

1408

inductive power factor is benefit compare to capacitive????

 3 3677

how the harmonic pluses take place in the flow of current

2 3114

what is the consuption rating of motor in one day

 1 2620

Sir we have 12.5 MVA(110/11KV) transformer (Y-Y) connected,which tripped showing earth fault,when we charged transformer it stood OK ,but on connecting 11 KV feeders it tripped showing earth fault.our service engineers found that the B phase and R phase phase connecting to neutral broken from HV OLTC(on load tap changer),and R phase and Neutral is ok.Dissolved gas analysis shows that accetline content is high,tan delta value is 12.My dout is it is an internal fault of transformer,why REF or diffrential relay is not acted?

 1 4170

A 3 phase transformer's (Y-Y) Y and B phase is (Y and B connection not broken) broken from neutral and R and Nutral connection is ok, what will be the relay tripping and why

 1473

how can we connect a distance relay to CT core that is for backup protection or metering?

 1 3386

HOW CALCULATE MOTOR KW, IF MOTOR NAME PLATE MISSING, WE FIND ONLY MOTOR WINDING RESISTANCE ONLY

 1 6607

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Un-Answered Questions { Electrical Engineering }

What does the a,b,c of 95a,95b,95c relays denotes?

2109

What is servo motor and what are the applications of servo motor?

2252

Define stepper motor. What is the use of stepper motor?

673

How to calculate the volumetric capacity of a oxygen & Nitrogen gas Cylinder if pressure is 145 kg/cm2 & water capacity of cylinder is 67 liters.

1716

WHAT ARE THE CHARACTERISTICS OF AN VOLTAG AMPLIFIER

1591




what is spadar bar .why I use in DC generator.

1469

how is capacitor bank look like

1919

Can a generator runs after getting 1st stator earth fault.

948

DERIVE AN EXPREION FOR MAXIMUM POER TRANSMISSION, WHAT ARE ITS APPLICATIONS.

1580

Write the analogous electrical elements in force current analogy for the elements of mechanical translational system.

751

what is the effect of power factor of machines in starting current

1509

please give me all the Alarm .Trip ,Safety Relays & Conditions of Diesel-generators mail me on ashokbabunhce@gmail.com

1506

Why Water motor is not taking a load or pressure while everything is correct. (Note: Motor running properly)

954

EXPLAIN WHY THE SURGE CURRENT RATING OF AN MCCB OR CIRCUIT BREAKER DECREASES WITH INCREASE IN THE RATING OF MCCB OR CIRCUIT BREAKER.

1518

please write motor, transformer, Generator setting, fault level calculation of Tr.etc

1512

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