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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

Basic philosophy of applying 3P tripping for uptill 132KV switchyards & for 132KV & above 1P/3P tripping is used.

L&T,

1 4402

Is it necessary to seperate the DG earth grid with Electricity Board earth grid for protecting the DG set. if yes why?

BARC,

2 4907

Isi standard of lux level required / to be maitained in different working place general & in textaile industry.

1 7208

why breather cap filled with oil?

7 19574

what is the ambient temperature of transformer oil & winding?

Reddy Labs,

2 8728

Why dose an electric meter record KVA when there is no load on a 500 KVA transformer

1 5399

how is working d.c amps meter?how to connect the dc ammeter inthe circuite?

2 6946

which type of starter is suitable for single phase motor ?

IOCL,

11 17301

how we calculate the 30 KW 3phase electric motor current on noload

Monnet, Siemens, SSR, Supermac Industries,

23 154206

What is harmonics and how the 1st,2nd,3rd etc harmonic levels

2 8056

How the CT and PT ratings are calculated

5 19090

expansion of rccb

3 7776

Why do power lines not short out when they fall into water?

2063

In UPS what does 600va reffer to?

4 38447

How to test Power Transfomer vector group?

Bhel,

1 3015


Post New Electrical Engineering Questions

Un-Answered Questions { Electrical Engineering }

We have two APFC panels in same station. I need how to connect CT in two APFC panels.can we take one CT in series connection or two separate CTs.

1589


Explain the operation of grid connected central solar inverter ?

1585


What is negative sequence over voltage element?

2046


what is the power rating of CPU, CRT type moniter, LCD type moniter,scanner Approx.

2269


What happens to a line-frequency of high-frequency transformer when it is first energized/ re-energize?

2231


Define the term factor of inertia.

2194


Define characteristics impedance?

1187


how to i get B licence,i am completed BE electircal and electronics engineering.i want to konw the proceduure to get b licence

1812


Why did lightening arrestor solid copper rod head is sharp on mobile tower top?

2078


HOW TO CALCULATE AMPs OF CURRENT TRANSFORMER IN HT Panel

2475


why and how voltage sharing in transformer, during magnetic balance test ?

2416


design a 3 bit synchronous and asynchronous counter using T- flipflop

2074


please explain how to do 'pole drop test' on generator?

2965


what is the difference between circular wdg & ractangular wdg?

2106


What is essential to prove safe isolation of electrical circuit?

1134