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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

what is the use of power transformer in GSS.

College School Exams Tests, DLF, TCS,

1419

What is mean by single phasing used in distribution of electricity in rural area of maharashtra state?

3 2928

High voltage test procedure of in swgr board. why should measure millivolt drop on testing time?

NTPC,

1131

my question is Megger of cable insulation or swgr board meggerring some values in one day 50mohms,some other day checking different values(20Mohms). this tell that some person tell that that values ok. how to identify the megger value is correct. pls tell me the answer.

2 3383

What is the reason behind 11kv 33kv 132kv.....means multiple of 11?

6 18077

why the the phase transformer's nuetral has been grounded

2 3701

Difference between 3.5 core and 4 core

2 4003

Why r use in the tap changing x' mer.

L&T,

2 4143

What is the black star?

2 2807

I need tnpsc AE Electrical question papers

TNPSC Tamil Nadu Public Service Commission,

2 5242

what are the industrail measures to overcome ferranti effect? how would the ferranti effect the power system if those remedial mearsure arent taken? how often does this effect occurs in real power system? plz reply

3 4996

How do you determine the size of transformer radiators in a transformer?

994

can we replace d.c.motor by 3 phase induction motor for a particular application

4 4511

A single line diagram(SLD) and a purchase order of a 11/66kV switchyard of a power plant was given. In the SLD, only one lightning arrestor(LA) was shown, but the purchase order had need of 3 LAs. Is this correct, if yes, why?

2 5565

How do we calculate conductor size?

Hero Honda,

1 2607


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Un-Answered Questions { Electrical Engineering }

calculate external resistance values to add to the rotor of a slip ring induction motor. STATOR- 415 V, 3 phase delta, 1100 A, 50 Hz, 1490 rpm, pf 0,86 ROTOR - 660 V, 590 A, 50 Hz. STATOR current at each steps STEP1-600A,STEP2- 800A,STEP3-1000A,STEP4-1100A.

2523


what will happen if dc is supplied in acb or mccb or other circuit breakers?

669


What is the difference between solid grounding and impedance grounding?

1069


how to calculate short circuit current for the busbar

449


why the protection turbo generators is most complex?

1021






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

927


What is steady state response?

174


i have been tasked with a design of protection, metering and control(PMC) relay panel extension to accommodate all PMC relays.There is an already existing panel where this one will be built.What are the design aspects for this kind of project? thank you.

1110


What is the difference between Droop vs Isoch Control?

1350


if 12v battery get discharged for 2 months after if we put charge it will charge again?how much time it will take to charge?

991


Why does the rotor rotate?

1288


Why does the radius of armature is less than the radius of pole shoe?

1198


we use capister for power factor. when we use capaciter in dg circuit  than defect dg. can we use capaciter bank for dg circuit

873


How to identify the start and end of 3phase 12 lead motor if U1, U2, etc numberings are lost or erased.

1267


wHAT IS CAPACITANCE LATCHING? hOW TO CALCULATE CAPACITANCE LATCHING? hOW TO SOLVE THE PROBLEM IF CAPACITANCE LATCHING APPLIED?

1071