Electrical Engineering Interview Questions
Questions Answers Views Company eMail

why dc source used for HV breakers and Relays operation?

Cethar,

2 2710

why holding contact is not using in VCB and ACB breakers?

Cethar,

1 2096

Dear All, If we have 8No. 11kV cables running underground that are required to supply 20MW to a new development. What is the sustained current in Amps? Please advise.

1 1761

I want to know all basics of electrical engineering

RRB,

1427

what is a breaker fail relay

Eskom,

1619

Two bulbs of 500w and 200w rated at 250 v will have resistance ratio as ?

CGL, Dreamz Infra, Sunny Developers,

2 14509

how much rating of fuse and MCB should be used for a load consisting of 6KW and 18KW inductive load?

1 2362

What is deference between MCB & MCCB & ISOLATOR

Prakash Industries, Standard Chartered,

1463

What is the inside of ACB & VCB & SF6 breaker's pls tell me about this

Standard Chartered,

2 3238

when the Transmission and Distribution network where is the "feeder" lines are located? and why should be used in T&D network.....

1251

circuit breaker is ...............connected with circuit

Rancho,

2 2429

Inverter. converter. Ups.MCB.solar.alternators. motors.

Cisco,

1373

choose the non-switch device (A) transformer (B) diode (C) transistor (D) IC

3 2749

What is VSCF windelectrical system?

1327

What is advantages of VSCF wind electrical system?

1899


Post New Electrical Engineering Questions

Un-Answered Questions { Electrical Engineering }

At what speed an electric car can run with 2 HP motor of weighing 400 kg?

1302


What are the temperature elements?

705


What is resonant peak?

677


What is warm / cold start of HT motors. How many warm start & cold start are possible in a day?

1560


sir my exam is on 19/6/2013 under electrical branch pls send me sample aptitude questions as well as sample technical questions for jindal steel and power company

1802






Define relative stability.

625


why are u join ntpc

1717


what is mean by transition resistance of transformer?

3950


Bimetal strip used in overload relay what is that,which types of material used for that & percentage.

1783


we have require a Motor (1500kW, 6.6kV, 50Hz) which shall operate at 1500rpm during 30min and after it shall run on 500rpm during 15min. The same cycle shall be repetitive during the whole working days. Which method is best and economic to achieve such type of task. VFD, VVFD, Pole changing motor etc.

1476


Good day everyone,currently in our premise we using 30kw slip ring motor with resistance bank which we use as forward and reverse at conveyor bar handling. So,my question is how do we calculate the resistance bank which is suit the motor. Kindly,assist me... thank you

1263


I am having dual speed motor of cromton greaves make of 3.7 KW -1400 rpm and 5 KW - 900 rpm. Please let me know groups and winding connction for rewinding purpose.

1504


WHERE CAN I GET THE PREVIOUS QUESTION PAPERS OF Govt Polytechnic in deee 2nd year papers

2294


Can anyone tell the proper diagram of star delta starter????

1459


importance of reactive power management

1576