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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

1.what is difference between ATS & STS main use. 2.what is difference between ACB& VCB With symobles,and main partes, manimum range. 3.How many types of relays and main function.

Visa,

4652

can I connect 25KvA stepdown transformer(RYB-440V,UVW-240V) to the output of 15KvA,3-phase online UPS(440V phase to phase)please brief.

1 4177

1.Why use in ups in software's,reason,and pls explain. 2.what is the isolation transformer and main use it's functioning and partes.

TATA, Wipro,

5 4688

Pls mail me utility & Dg related question with answer

973

how to calculate load if i have three phase & single phase connection from power transformer( in term of kw & kva).can i take single phase load/3 for total kw calculation

1 4848

What are all the problems occured while ac generator running in leading power factor at full load condition?

1 1267

what happen ,if generator will generate leading power factor?

CD, NTPC,

6 13254

why current transformer secondary side should be shorted ?

Areva,

5 9050

How RTCC works with OLTC

Siemens,

1 3474

Explain in brief description about the operation of DG sets.

Siemens,

1288

What are the types of earthing? Explain dagramatically.

Siemens,

3 5301

how mach PF mainten in DG

Siemens,

6 5969

what is mean by amf

Siemens,

4 6584

why we r fixing harmonic filter

Siemens,

3 3624

please anybody help me to find out the BHEL trainee Exam previous year questions papers . if u ve pls. send it to surekhared@gmail.com

Bhel,

1084


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Un-Answered Questions { Electrical Engineering }

In constant power region of 3-phase IM torque-speed characteristics, if frequency increases flux A does not alter B decreases C increases D none of above

1230


What is real time power factor control panel(RTPFC)?

3189


Describe Non I.S. Earth System and why is it used?

783


DG SET BLOCK DIGRAM

1275


How to measure power in 2 or 4 or n phase circuit? Please give me a formula.

1001






explain the process of commutation in a dc machine. Explain what are inter-poles and why they are required in a dc machine.

174


what is the difference between b c d curves on mcb

785


What are diffrent type of road taxes?

1016


Which type of air compressor is used now a days in the market. Keeping in mind of energy efficiency and maintenance points. Relevant documents may also be sent on mentioned email ids.

834


Why should be the frequency 50 hz 60hz only why not others like 45, 95 56 or anything , why should we maintain the frequency constant if so why it is only 50 hz 60hz?

173


What are the special cables required for explosion proof wiring?

2210


what is Fan Control Cubicle

1334


how to calculate the lightning arrester conductor @ no of earth pits required

1119


Difference between HRG and NGR. Are they both the same thing

2650


WHAT IS MEANT BY INSULATION CLEARANCE IN VACCUM?

1044