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Electrical Engineering Interview Questions

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.

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.

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

4848

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

1267

what happen ,if generator will generate leading power factor?

CD, NTPC,

13254

why current transformer secondary side should be shorted ?

9050

How RTCC works with OLTC

3474

Explain in brief description about the operation of DG sets.

1288

What are the types of earthing? Explain dagramatically.

5301

how mach PF mainten in DG

5969

what is mean by amf

6584

why we r fixing harmonic filter

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

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