Electrical Engineering Interview Questions
Questions Answers Views Company eMail

What are locations arc protection relay is fixed.

KSEB, L&T, Siemens,

1338

Zone of protection and tripping scheme of arc protection relay.

KSEB, L&T, Siemens,

1395

High speed earth switch operation with diagram

KSEB, L&T, Sanden Vikas, Siemens,

1871

Difference in load break switch, isolator and circuit breaker.

KSEB, L&T, Siemens,

1 3041

If breaker is undefined position, first step to do.

KSEB, L&T, Siemens,

1772

Load break swicth maintenance procedure.

KSEB, L&T, Siemens,

1310

What is double throw isolator and single throw Isolator.

KSEB, L&T, Siemens,

1 5878

After taking shutdown of 11kv feeder, if you see 5kv by phasing stick in the cable side, is it possible to close earth switch in cable.

KSEB, L&T, Siemens,

1897

What is the main feature of v/f control?

1 2010

will 1050kva DG set withstand for back charge of 16MVA transformer

1448

How to calculate percentage impedance of a power transformer.

1 1999

why we earth only one side of a power cable. And which side is advisable to earth.

1 2032

What is the difference between earthed and unearthed power cable.

1 2343

What happen if a 18 watt fluorescent tube is used on 36watt choke,which one damaged or not damaged, if damaged why that damaged?

Bharat ITI,

2 2379

3 phase induction motor rotor field rotate at synchronous speed w.r.t ?

3 2766


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Un-Answered Questions { Electrical Engineering }

What should be the values of settling time, peak time, steady state error, overshoot, rise time, MPOS (Maximum percent over shoot) to keep the system in transient state, to keep the system in steady state ?

1746


what is the difference b/w pvc cu conductor and cu breaded wire..?

2875


What current flows in the transformer primary when its secondary is open?

625


What is the simplest formula to calculate the rotor diameter of a synchronous generator?

1896


I have 2 KW electric water heater.I am gonna use it in controlling water temp.so I needed to increase or decrease the heating capacity.is there any electrical-electronic circuit for varying the resistance & so current?

2565






y we use neutral,all r told its used to for closed path..k its a just used to closed path,in a transmission line y we put same conductor used n both phase and neutral..if we use less than phase conductor in neutral mean we ll reduce cost its right r wrong..if we use mean any problem occur in transmission line..

1520


State norton’s theorem?

662


What is notching in dc machine?

1490


what is the function and use of cable differential protection relay?

2386


how does commutator convert a.c to d.c?

1754


What is transient response?

651


what's the exact magnitude of current, flows through Neutral?

1530


for a 400kv t/m line with 10 ampere current will corona occur?

1689


Is neutral transformer can be called as control transformer?

1508


WHICH SIZE A.B.CABLE IS USED FOR 11KV.

1739