Electrical Engineering Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

how we test a 3 phase motor on single phase supply....? HOW WE RUN A 3 PHASE MOTOR ON SNIGLE PHASE. supply for testing..? how we verify of a 3 phase motors 6 wire & name thame a1/a2/a3..b1/b2/b3 and c1/c2/c3 for connecting star delta starter ........i have only 1 phase supply ? help forum..........

Enercon,

1 5197

why hv winding is not placed near to transformer core

4 25461

How can calculate the daily electrical consumption of 7.5 HP motor, if the moter runs 24 hrs continiously. Also have to know about 3.5 hp chiller.

Wipro,

2199

my N-P 230 VAC at 3 wires but i haven't any voltages at phase to phase whither my supply is 3 phase, why i haven't received these line to line voltages ?

2 4269

what is the first step of dg shycroning ?

ABB,

2 5089

what is power factor?

MAHINDRA,

9 11928

how we can check that any motor is faulty may be single phase or three phase?

MAHINDRA,

2 9069

we touch other end of the tester supply, why do not get shock?

L&T,

7 15546

what is tha gap between the pole of 132kv line

2 5723

What sort of protection scheme do you suggest for the protection of a 10 HP motor?

Chevron,

1 8137

Why the capacitor bank is keeping on for electricity supply and keeping it off for generator supply

3 6266

what is the primary current in 415/415 v when secondry of dry type transformer is shorted.?

3 6496

What are the conditions to be satisfied before connecting two DC generators in parallel?

Bhel, Godrej,

9 17544

how to calculate the conductor size for certain KV transmission line and distribution line?

Hyundai,

2514

What is the difference between earthed & unearthed system?

HCL,

2 6307

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Un-Answered Questions { Electrical Engineering }

Advantages of using generator circuit breaker (GCB) scheme in a power station ?

5281

hi friend i am going too attend for hpcl in this month please help me by sending written test question papers i am in the stream of E.E.E

1979

how to select size of hardware for linking aluminium busbar is it depend on area of busbar or current flowing through bus bar

2021

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

1853

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 PDU in transformer?? which company manufacture??

1900

What is boucholz relay and the significance of it in to the trformer?

1148

Give details on how you intend to handle a challenging position you are posted to manage unexpectedly as a company staff?

3316

gas turbine genrator reactances

2000

formula for calculation of switchgears(i.e. contactor, fuse, cb, relay etc.), if load current is given?

2206

What is center gravity load in substation?

2424

what is data block in plc ? How the values of data block are written and read by hmi ? what is the difference between function and function block ?

3419

Is a d.c.compound motor is use as a booster? how?

2128

I have 4 busbar of 1000 ampere. we use 4 busbar to make 4000 ampere in one phase.my problem is that when we applied 60% load on that then busbar produced high noise.what is the reason of that and how can i minimize that noise.

1710

What is the effect on Power factor and capacitor when your company load is more than 70 % of welding transformer

1819

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