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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

Why the TNC switch is called as Memory switch

Reliance,

1 3460

how to understand the controling circuits example star- delta-starter controling daigram please let me know

GMR,

3 7436

how many earthing should give for transformer body and nuetral

GMR, GOMS,

5 8198

i am electrical and elctronics engg passed out in 2009 want to attend for reliance placements.plz send me apttitude ,technical and hr question answers to my mail plz. my mail id-kat.bindas@gmail.com

 1640

Is C.T will sense the current in both direction. As i know the C.T will sense the current in only one direction.

 2 5166

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

 1632

Why the cost of CT increases with the decreasing of its CT Ratio (Technical Reason)?

Vedanta,

2 5266

How the size of transformer decreases if we increases the frequency?

 2 4656

Can we use delta-star neutral grounded 3 phase power transformer bi-directionally.

GMR,

2 4776

how to synchronize 3 phase slip ring induction motors of different ratings.

GMR,

1884

can we use existing delta star with neutral grounded,step down(6.6kV/415V), 3 phase power transformer bi-directionally.

GMR,

3 5231

1.differance between onload ups and off line ups.

CTS,

1 5219

want happens when a dc is given to a commutator

 2 4137

A three phase transformer 460v primary 220v secondary (three phase four wire system.) Why did we get 460 volts across the neutral on the secondary side?

 3 5869

I have 12MW gas engine based power plant its running parallel with grid. my problem is When cpp run in island mode(without geb) that time geb transformer power factor is 0.2 lagging. When cpp run with parallel that time power factor is 0.94 lagging So how can i maintain power factor ofgeb transformer in island mode 0.9 lagging?

SPCL,

1 2202

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Un-Answered Questions { Electrical Engineering }

what is the current setting for different relay protection for transformer .

1835

What is domestic transformer? Draw the connection of domestic transformer.

1932

What it the purpose of parallel phasing transfomers??

1609

how to put cable sizing and cable glands size for respective cable & Cable Lug size in a DB sectors???

1736

Efficient electrical earthing in hard rock area

1144




How to justify this statement ??? "Capacitors in series provide less capacitance but higher voltage breakdown rating for the combination"

1538

How can we calculate the transformer rating if the load calculated is 1000KW (11Kv Supply)?

740

Difference between rating factor of cable and derating factor of cable?

1273

What are the Full Forms of TVM, MTL, CVT ?

1046

What is the instrument to check the rotating diode fuse of alternator in running conditions?

2104

what is the transmission loss for electrical supply? specifically a large shopping complex where the grid is half KM away, what will the % of transmission loss? is there any transmission loss for captive unit generation for above set? thanks

1608

how to calculate current and voltage in a same circuit?

1767

I need bhel electrical test pattern & paper

1479

I have doubt that the supply HZ (very low or high than rated ) may affect the power factor. is it true. ?

1300

State Maximum Power Transfer theorem.

817

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