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

1 7461

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 5466

What is the difference between earthed and unearthed cable

FT, L&T, Suzlon,

5 10728

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 3996

Is phase preventer require when overload relay is there

1 4266

What are the different types of testing in ht cables?

3 7493

what is busbar and its function/

2 6076

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 4976

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.

2043

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

3650

how work the differential protection relay in details?

2 7701

what is the work of trip circuit supervision relay?

Volkswagen,

2 11936

how work the lighting arrestor?

2 5227

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

Volkswagen,

3 8613

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

JSL,

3 55920

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Un-Answered Questions { Electrical Engineering }

What is A check, B check, C Check & D check for a diesel Generat

2120

during installation time of transformer and alternator which points we have to observed?

1946

What is the breaking capacity of transformer and how can we calculate the breaking capacity of tranformer

1949

How can i calculate the Breaking capacity of molded case circuit breaker, is the breaking capacity of CB for Diesel generator shall be less than grid supply's breaker ?

2244

What is online and offline ups? how does it works?

2161

What is the dependency of stiffness on load angle??

1316

What are the types of excitation system?

2034

2145

1 hp is equal to how much watt?

1266

why single phase to grd test in HV cable?why not 2 phase at a time?

2288

In single phase ac ups supply when current is measured with tong tester neutral current is found more than phase current.What is the reason?

2124

Please tell me the power flow from pmg to main rotor of an alternator (Including AVR unit)?

2031

why we have to particulary use ACB for below ratings,even available of MCB,MCCB with that range ?

2928

Generation of voltage for each phase are same of a turbogenerator.Although the short circuit current flow when two phase of turbogenerator are shorted(where current can't flow without potential difference),why?

2122

wheather the size of windings in motor and generator are the same

2020

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