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

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

why fault current time duration is calculated for 1 minutes?

Rockfort Engineering,

1 2327

why fault current always calculated for 1 seconds?

Coca Cola,

3 4982

what is the difference between ac motor and dc generator

ETA,

1802

What is the use of Gateway RTU like ABB RTU 560 in power plant, SAS system ?

ABB,

1 3111

what is the prosses for getting of 33kv licence (i have completed my engineering degree & working in 33kv substation for contract basis )????

Surana,

1903

if field breaker of generator is closed prior to its rated speed on a power generating unit. what will be the effect on generator, unit transformer and starting transformer.

Power Plant,

1712

what is the Transmission line differential protection and why differential protection also have backup Line Distance Protection ?

1 2557

Which cable is use for rtcc control panel

1733

impliment (AB)`+C to transistor representation

Ascent,

1796

I have done my m.tech in electrical engg discipline. Can any one please suggest me how should I prepare for getting into phd in iit or nit.How should I prepare for getting into lecturership

1656

how to i get B licence,i am completed BE electircal and electronics engineering.i want to konw the proceduure to get b licence

1706

To generate electricity , what is the speed of rotor?

JEC,

1 3205

why we use 630mm single core cable for transformer secondary side and why two neutral cable

Technicare,

1806

What is the criteria for selecting the voltage classes of an AC Induction Motor.The KW rating above/below which ht/lt selection is made may be provided in details.

DAE,

1612

WHAT is the no of starts/hr for 3.3 KV, 300 KW motor. Motor is vertical flange type.

DAE, Siemens,

1 3463

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Un-Answered Questions { Electrical Engineering }

I completed iti in2004 I was worked in A grade contractor can I get c licence

1676

Can Anyone Answer anyone of these ? Q1) why direct SOLUTION of Load Flow Studies in Not Possile ? Q2)Why majority of Buses in power system are load buses Q3)Why one of the buses in Power system is taken as reference bus (slack or swing) Bus ? Q4)Bus Admittance Matrix is a sparce (means it contains some zero elements ) matrix , give reason

1862

why zero sequence impedance measurement is not applicable for single phase GT

2152

we are having 110 Kv,250mA Electrostatic precipitators for coal fired boilers. what will be static voltage and current after discharge and what time it will remain before earthing?

1846

what is the difference between "Rotary bypass isolation switch and Normal bypass switch" pls share indepth techs?

2005

why sielent pole is used only in hydro generators and not in turbo generators

4125

What is the phase relationship between the primary and secondary voltages of a transformer?

1041

What are the types of instrument transformer?

1130

What is the BS(British Standard)code for 11kv motor

4921

some time we open engine breaker 8.0 MW load but plant not trip. and another time engine open 4.0 MW load engine trip why? individually engine breaker open & individually emergency stop why difference?

1714

rajha power sector details

1985

How harmonic block test are conducted on relays ( Siemens,Areva ect )power transformer using omicron kit?

2220

How to checked frequency drive output voltages?

1146

what is fault level of power system ?

6243

what is the illumination level required for child play area?

2066

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