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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

What is Lockout Relay and what is use of it in electrical installation

1 3834

Dear sir, iam completed iti ncvt electrician 2000-2002 & diploma electrical eng completed 2008-2010 distance education in rvd university, still i got B licences only but my working company want C licences, how to i get c licencese pls reply me iam in critical situation thank you karthick 9841637803

1693

What is the Surge for 1.1 Phase Induction Motor(For Eg.1Hp) 2.3 Phase Induction Motor(For Eg.1Hp) 3.AirConditioner(For Eg 1Ton) 4.Refrigerator(For Eg 180Ltr or 160kW) 5.Induction Cooker 4. Ceiling Fan

2057

What is the purpose of SOTF being used inspite of distance Protection given?

Alstom,

7 50145

what is the operating time for LBB and how does the LBB relay realise whether cb is opened or not?

1982

why in generating station generation voltage is 11 kv

L&T, Usha Martin,

1 5195

What is the Good Earth resistance value of G.I & Cu. Chemical Earthing & Normal Pipe Earthing?

ABC, Reliance Life Sciences, TCS,

2344

we have 3 phase 4 wire supply 230/415 V.AC and our distribution is single phase or we have all single phase 220 v,ac operated appliances. and noted the current with help of clamp meter Red to N = 20 Amps. Yellow to N = 45Amps and Blue to N = 30 Amps ( total is 95 Amps ) what will be neutral current on the main .

ABC,

1 5572

What is mimimum di -electric strength value for 33 KV transformer OLTC oil

Franke Faber,

2000

KVA transformer of different frequencies of 50hz,100hz,500hz&1000hz. which one of these transformer has big size? Give reason

Suzlon,

4 7997

what is cogging and crawling

Suzlon,

2541

what are the stresses in circuit breakers ?

2020

What is mean A32 B32 C32 D32 in mcb(miniature circuit breaker)

2 46942

Is there any relation between transformer capacity and its bdv?

1 3329

how many BUSBAR is in electrical system?

3 6119


Post New Electrical Engineering Questions

Un-Answered Questions { Electrical Engineering }

why we dont prefer ac voltage controller instead dimmerstat [if both have same rating] for conducting experiments in laboratories?

2146


what is meant by brushed alternator & its working principle ?

1927


What is the function of auadag in a cro?

1126


help me with the question that might be ask on the interview for technical position

2291


what is mean by PIR in circuitbreaker and give me detail of that?

3524


what is difference between 9kv 5ka surge arrester and 9kv 10ka surge arrester.

1856


upto how much low RPM we will run the commercial motor which is run through VFD without any problem occurs in motor.Motor rating Duty is S1 & RPM is 1400.

2146


hi frenz,its aswathy.i hve aplied for the hpcl test on feb,pls send the test patern & the placement papers as soon as possible. mail-id :kjaswathy@gmail.com

1787


what is ground fault in ACB?

2098


please send the IS strandard for electrical to sakthi_murugan86@yahoo.co.in

2258


What is maximum power transfer theorem?

1110


one conductor length is L.and i am strech uniformly this conductor and made length is 2L.so resistance of this strech conductor is R=4R..but i want to know about area of stech conductor hows it become a/2..

2139


There is air in a room . the top and bottom of the room are at constant temp. T1 and T2. DRAW THE temp profiles if a. T1 greater than T2 b. T1 less than T2

1888


What is the principal of motor?

1101


Operation carried out in thermal power stations?

1145