Electrical Engineering Interview Questions
Questions Answers Views Company eMail

why 6.6,11,22,33,66kv? what basis they have considered?

5 3877

HOW CIRCUIT BREAKER RATING CALCULATED?WHAT ARE THE PARAMETERS CONSIDERED?

5 11591

Wat is da difference b/w neutral earthing and unearthed system?

2 2971




what is the purpose of NGR?

Assam Electricals,

25 70457

what is residual current....

1 1693

what happen "when Dyn11 is parallel operation with Dyn1"?

9 9961

Grid fault level [KA]?

678

Earth Resistivity

2 3091




on what priciple transformer works on?

5 3071

how to calculate the capacity of the AC motor

TATA,

1 3075

RATING OF LIGHTENING ARRESTER FOR 11 KV LINE IS 9 KV BUT WE KNOW THAT LIGHTENING ARRESTER IS USED FOR OVER VOLTAGE PROTECTION SO WHY NOT THE RATING OF LIGHTENING ARRESTER BE MORE THAN 11KV ???????????????//

Hakel,

5 29925

what are the type of motors

3 2638

I have cleared IOCL written exam(Electrical). My intv is on 6/9/2008.can anyone guide me & tellme abt intv questions.

IOCL,

5 4344

how dc ct works?

3 3533

what is the difference between inverter and ups & what is the earth resistance for ups , if its high why so

3 3837


Post New Electrical Engineering Questions






Un-Answered Questions { Electrical Engineering }

I HAVE A 50A MCCB AS PER DESIGN LINE WIRE CONNECT UPWORD SIDE AND LOAD IS CONNECTED TO DOWNWARD SIDE TO THE MCCB.IF NOW ANY ONE CHANGE SUPPLY & LOAD(WISEVERSA) WHAT HAPPENS ? DOES MCCB OPERATION OR WORKING FUNCTION NORMAL IF YES THAN WHY THERE ARE MARKED LINE & LOAD ON MCCB.

787


How you calculate the repturing capacity of a HRC fuse

777


TRANSFORMERS WITH DC SUPPLY

314


Is it true online ups having bypass mode if it is true then why we called ups because it is interrupting power when goes in bypass mode

361


Hello everyone, somebody knows what is a "surplice power" ? The hole phrase is: "This rating is appropriate for a generator set paralleled with an infinite bus e.g. a national electrical supply network or grid where the generator set is run at 100% load, 24 hours a day, 365 days a year and any surplice power is exported into the grid" Thanks in advance.

132


explain working principle of earth leakage relay

1508


What do you mean by screen of power cables?

133


What is the range of the stator resistance of 3 phase induction motor?

404


Why lose 1 phase voltage in 33kv to 415v stepdown transformer

184


how does a liquid starter reduce the starting currents?

451


why does a dc machine has high efficiency while working as a generator than as a motor ..

458


I am going to appear RRB Sr. Section Engineer Exam, Electrical. Can you send me previous year questions of RRB Electrical engineer. specially Section Engineer questions. my email id is likerahulworld@gmail.com

385


I don't understand why when we connect high voltage source in DC to electronic motor , we must add capacitor and resistor in parallel ? (I know that we use capacitor because we want to absorb the current that in the first second electronic motor in opposed with current course produce. ) what are the feature of Resistor and in such situation ?

389


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

630


what are the main faults that occur in stabilizers? How they corrected and resolved ? Types of stabilizers ?

520