Electrical Engineering Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

If Two Generators are working parellel in a network and suddenly the field of one Generator get weakened What will happened if there is no reverse power relay fixed in that Generator panel????

7 10770

What will Happened if the polarity of CT is changed?

13 41216

Why we are checking the vector group & turn ratio of Xformer while PM?

1 4342

What is the knee point of voltage of CT?

NTPC,

5 11266

In which reason, one end of CT secondry get connected with Earthed? Normaly S1 of CT. Why????

1 5769

What is an Isolation Xformer? What is the use of it?

2 8143

What is the different between Earthing & grounding?

1 5039

how braking & making capacity of circuit breaker are calculated?

Bhel,

2303

If we feed 230V ac supply to a full wave rectifare, what & how much will be the out put voltage?

3 6252

What is thresh hold value of current?

2172

What is negative phase sequence?

Hindalco, Universal Associate,

7 92469

What is harmonics in AC waves. How it is generated? How it will effect the system network? how can eliminate it?

2 5129

Waht are the protection should be use in HT/ LT side of the same Xformer?

1 4243

How to calculate the phase to phase clearness of HT /// LT bus bar?????

2080

HI, I want to buy a new Xformer to my plant. what are the main parameter should I check ( Xformer rating is 16 MVA)

2 4361

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Un-Answered Questions { Electrical Engineering }

How the PF control while running DG set with load

2180

what is load despatching

2226

What is installed in PAC that is control the humidity

1516

I am getting above 60 V as open delta voltage against single phase unit ICT at tertiary delta formed and ICT getting trippped on NDR. ICT tested and found in order. PTs provided on tertiary are tested and in order. what may be the reason?

2121

solar inverters was not connected to the nuteral link .this nutwral possible to any other systems

1877

can I improve the furnace power factor (10 mva transformer) by adding a capacitor bank before the transformer.Does system power factor vary a lot with the furnace PF?

2049

how to compute kvar in substation feeder to improve power factor and sending voltage

2140

i have install 750 kva distribution transformer at my site and want to do neutral earthing. what calculations should i follow to determine earthing conductor material and size?

2060

What are high pass filter and low pass filter? and What are the flowmeter ?

1989

how to design step down 12 V, 1mA small transformer from 220 V AC? Because according to VI relation and power transfer it results bulky...

2090

How to perform a DC resistance test In Alternator and their proceduces?

1758

What safety precaution are to be taken for avoiding electric hazards ?

1867

How can a equal potential zone be carried out in conductors?

1336

XYZ

2143

How will you define capacitance?

1164

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