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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

why VCB always installed only at HT yards or HT side? suppose if ACB installed at there means, what will be problem?

 1 6712

what time should we set to come on star contacter in stardelta starter?and for what reason we hav to set such time delay range?

 2 4281

What is the difference between earthed and unearthed cable

FT, L&T, Suzlon,

5 8961

What type of input will the OLTC indicator will accept or what type of output the OLTC will produce to monitor it's position at remote location.

amps,

1 3321

Is phase preventer require when overload relay is there

 1 3485

What are the different types of testing in ht cables?

 3 6333

what is busbar and its function/

 2 4864

What is the minimum setting in REF relay because i am facing some problem whenever power resumes after power failure my transformer is tripping because of REF trip. I am using CSPC make numerical relay(DIP switches). Now setting is 15 percentage. What is the reason for this triping. I sm waiting for answer

 2 4038

when the time of backcharging the transformer three phases only enough or three phase with neutral is must.from these which one is the best one.

 1566

What is the restart inhabit setting in ABB spam150c relay (Motor protection relay)

 3020

how work the differential protection relay in details?

 2 6661

what is the work of trip circuit supervision relay?

Volkswagen,

2 10716

how work the lighting arrestor?

 2 4257

what is preventive maintenance? and what is predictive maintenance? and what diffrence both?

Volkswagen,

3 7386

How the Oil Surge Relay works? How it protect the OLTC?

JSL,

3 54348

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Un-Answered Questions { Electrical Engineering }

What is mason's gain formula?

764

why current is constant on d.c?

1561

what is the use of expulsition protective gap in 11Kv line.

1675

can we find the inductance of a induction motor?

1536

DESCRIBEPNEUMATIC SYSTM OF ASH HANDLING PLANT

5006




What is the unit of charge and current?

613

Dear All we are having a problem in G120 BOP showing alarm A0503, F0052, F0060 we can not remove fault alarm ,Please any body help us. kowsar

1244

i have to install a HT panel, what components, I have to use in this and what will the diagram of that diagram,please tell me each and everything.

1329

Please brief me about number of pole in alternator.In single phase alternator coils are connected in star or series. How to calculate frequency for the same.

1402

does a DG set has low fault level as compared to that of a transformer.If yes then why.

1514

what will be project cost for 100 kv transformer connection under oyt scheme.

2391

how much excitation voltage required to generate 1mw power?

1586

what is transient enclosure vltage , very fast transients, very fast transient over voltages

1626

What happen to the transformer if the OLTC frequently used for lower and raise occured 50times daily?

1566

why US countries maintains 110v and 60HZ

1714

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