Electrical Engineering Interview Questions
Questions Answers Views Company eMail

what is XLPE type cable

Areva,

8 7415

HOW TO CALCULATE THE HEAT AND LOAD OF LT-SUBSTATION WHICH CONTAINS 2*1MVA TRANSFORMERS,LT SWITCH BOARD,MLDB,ACB,BUSBAR,ETC...?

2554

HOW TO CALCULATE THE HEAT AND LOAD OF LT-SUBSTATION WHICH CONTAINS 2*1MVA TRANSFORMERS,LT-SWITCH BOARD,MLDB,ACB,BUSBAR,ETC,......?

724




What is erection of electrical system?

1 3490

what is rotatng magnetic field in case of three or multiple phase alternating current machines???

NHPC,

1 1958

Brushed alternator is also called dc generator ? its true or false ?explain it ?

5 3143

what is the working principle of Brushed alternator ? without exictation how we can give dc supply to rotor ?

1 2223

Totally how much power will be consumed in 1 hour cotinuous running of electric train engine?

L&T,

1 2308




Name some application zrea where IDMT relay can used?

SKB,

3 10844

i am working in a grid substation,TNEB having 13 yrs experience. Am I eligble to get apply for c licence now?

3 4759

I am a possesor of c licence from 1993. I forgot to renew during the year 1998. During that time I was working at TNEB to till date. Is there any possibility to get renewed? or to apply for a new one?

721

HOW MUCH CURRENT DOES SYNCHRONOUS MOTOR TAKES AT SYNCHRONOUS SPEED IN NO LOAD CONDITION ?

599

why different series of vfds (like allenbradley)are used in industry ?

890

what is difference between c-power & u-power air circuit breaker?

Areva, IIT, Marine Electricals,

2 14032

what is meant by Back emf ?where its occur ?

5 7938


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Un-Answered Questions { Electrical Engineering }

132/66kv sub-station procation ?

659


sir plz send some previous year questions of jspl.

622


A 230V dc shunt wound motor has an armature resistance of 0,15Ω.When operating on no load at 650 rev/min the armature current is 6A . The motor takes a full load current of 85A. Calculate the full load speed if the field flux is (i) maintained constant (ii)reduced by 0,03

684


What is the magnetic field (coil DC ) of Turbo Expander?

728


Tell me all plants load factors i.e which plant operating on which load?

703






in general it is observed in power stations, the tertiary winding is used in higher rating Y-Y auto transformer but not in Y-Y power transformer. is the tertiary winding is compulsory then why it is not using in power transformer 

394


what is the safety of voltage power transformer(2250KVA0

722


What will be advantage if we put some load in neutral of grounded star transformer & loadshortcircuit current,rated current of cable & MCB with example?

521


any one guide me to reduce the power factor of diesel Generator from 0.97 Leg to 0.8 Leg.with out any change in my load.

340


Atwhat condition reverse power relay will act?

766


what is the function of anti pumping relays? what is KVAR? How it is generated in alternator? What is 3rd Harmonics? What is IDMT relay?

937


when we gave dc supply to 220v dc motor its rpm is 1200. then we gave 180v. how many rpm of its motor. gave answer with calculation at my ID.... ravizak@ymail.com

806


what is V.L.F. testing of power cable? do you know the voltage ratings, like for what rating and size of cable what rating of V.L.F. testing is used?

1000


Installation method of self treated earth electrode.

650


I have iti elec, 1st aid, and 5 yrs experience in 7.5 mw power plant. Am i eligeble for 11kv license in telangana state..when, how to apply for that.?

840