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 5463

What is the difference between earthed and unearthed cable

FT, L&T, Suzlon,

5 10727

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 3994

Is phase preventer require when overload relay is there

1 4266

What are the different types of testing in ht cables?

3 7490

what is busbar and its function/

2 6072

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 4973

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)

3649

how work the differential protection relay in details?

2 7698

what is the work of trip circuit supervision relay?

Volkswagen,

2 11936

how work the lighting arrestor?

2 5226

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

Volkswagen,

3 8612

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

JSL,

3 55912

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Un-Answered Questions { Electrical Engineering }

Logic using 1 kV or 1,1 kV grade in house wiring Low voltage cable. Explain/suggest? some use 1kV and some prefer 1.1kV grade insulation low voltage cable why??

1653

I have a 380 KVA DG set. How can i find out 1. My Fuel Consumption per hr ? 2. Electricity produced in 1 Hr. ? 3. If load varies then how does it affect fuel consumption & electricity produced ? Please HELP !!! Really need an answer.

2622

We are planning to synchronized DG's with our captive plant in the event of black start of plant, but before sync we checked voltage of DG with our plant voltage and it varies from 5 V to 450 V. So in this condition how we can sync DG with plant ?

1643

What is the diffrence (Technical & Construction ) between CBCT & Normal CT?

2028

What do you mean by cogeneration? What its working principle?

3206

How to calculate VCB rating for 33KV ,25 MW Power line?

1750

What is dc current source?

1297

What is the effect on 3phase induction motor if current setting knob of DOL kept at minimum current?

3736

1.25 kg of hydrogen are burnt with stiochiometric air, the mass of air in kg required is

2109

regarding safety what would u consider the most important rules to observe when inspecting electrical equipment?

2053

In what cases (circumstances)we should apply P controller, PD controller, PI controller & PID controller ?

2182

How does HT work & Voltage required?

2268

Brief me about maintenance planning & sheduling of machine tool.

2133

what is ramping rate of generator

2069

i want to know d working mechanism of tafe tractors next i like to know d engine type of apache bighs can anyone help me

2245

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