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Electrical Engineering Interview Questions
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what is earth fault relay 64T, why it is used in main Incomer and neutral CT of Transformer.

 3042

can we use ps class in combination with protection class in differential protection and over current protection.

 1 2176

What is the output of a transformer..??

Jindal,

1 3917

What device is use for metering current at lt consumer end..??

Power Grid,

2 5582

How many devices can be connected in one zone of FACP

 1835

what is interference

L&T,

1 2464

What is the maximum current carrying capacity for both copper and aluminium cables for 1sqmm?

 2 3667

HOW TO CALICULATE THE LEAD ACID BATTERY AH AND HOW TO FIND THE 1.2KVA UPS BACKUP @ 1000WATTS LOAD?

 2 3585

WE HAVE THE DC RECTIFIER 1500A, INPUT VOLTAGE IS 3 PHASE. HOW TO CALICULATE THE LOAD? 3 PHASE SIDE EITHER dC SIDE. PLEASE SUGGEST ME

 1448

I HAVE 2 nO'S OF SYSTEMS, HOW MUCH UPS CAPACITY REQUIRED ALONG WITH 400WATTS ANOTHER LOAD? PLEASE GIVE THE FORMULA?

 1 2972

can i connect wavetrap in 2 different phase in EHV line?

 1410

what is ALF and ISF in current transformer?

 1 11174

how can i use REF and diffrencial relay both in 1 CT core for transformer protection?

 1419

can i connect REF and Differencial relay in 1 CT core for transformer protection?

 1499

What is grid collapse? what is the reason for it?

1602

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Un-Answered Questions { Electrical Engineering }

Why front mounted CT polarities are always towards breaker?

1557

In synchronization circuit what is the function of Interposing voltage transformer(IVT)and Reverse voltage transformer(RVT)

11055

What is 100% protection of generator? Why 100% is not used but 95% is generally used?

663

What is the use of bundle conductors?

662

how to find impedance , mutual indatnce in transmission lines

1732




mccb service sittings be done?

1401

please send privious years question papers of jindal steel and power ltd.My e mail id is rajanikant.sngh@gmail.com

1674

for what purpose the star point is done in ct

982

How to calculate KVA/VA rating of PT or CT from primary & secondary voltage or primary & secondary current?

2025

Define conversion efficiency of a power amplifier. What is its value for class c power amplifier?

830

how to interlock 3 nos MCCBs using under voltage coil. please provide me circuit diagram?

2195

Is it possible to obtain 480v or 550v in single phase output by giving the input to 230v to a single phase torodial type transformer without using a stepup transformer?

1642

How much depth n width required for laying of 1X70 Sqmm Cable in Desert???

1253

In what condition the HT fuse breakes?

1517

List examples of current sources?

655

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