Electrical Engineering Interview Questions
Questions Answers Views Company eMail

which is more dangerous AC\DC supply

3 6679

What is the formula formula for Busbar sizing and what are the things to be consider for Busbar Calculation?

ABB, APL,

1975

What are the factor to be consider for CT selection in 132kV substation?

ABB,

1609

What is the In door to Out door Sub Station.

L&T,

5 8350

how to select the double earth conductor if 21A full load?

L&T,

1547

What r the specification furnishid in motor name plate?

5 6581

what type of euse we should use ? 1- High resistance & low temperature 2- High temperature low resistance

2 3525

What is the role of a Production Engg in a Industry?????

1 2653

What is Class and accuracy in CTs? Types of Classes and important of Classes?

2 5645

What is the role of Dedicated earthing in UPS System?

HCL, MSPL,

2621

THE ROTIO OF VOLTAGE AND CURRENT IN A CLOSED CIRCUIT

APGenco, Constant, Lanco,

12 25698

in power station power measuring unit is KW but in transformer is KVA why?

4 5667

what is mean by busbar and what is the difference between busbar,transmissionline,feeder,distribution line

5083

I hv a question regarding power factor improvement just after transformer. I request you to reply me plzz. thank you sir. My friend has a small unit of fabrication. in his factory the main load is a welding machine, lathe machine, grinding machine. this load is not continuous type. now our electricity board has installed 16 KVA, 11000/433 V transformer for our factory. In the energy meter (trivector meter) at LV side of transformer, i hv seen power factor value of 0.15 only when only 3 KW load was flowing. Further electricity board has suggested to install 4 KVAR capacitor at LV side after energy meter. Now my question is that if we permanantly install and switch on 4 KVAR capacitor after energy meter, during some load on transformer and also without any load on transformer, wht will be the power factor shown in energy meter?i dont want to get any penalty by electricity board, so plz suggest me if i can permanantly install and switch on the 4 kvar capacitor or not at LV side of transformer just after energy meter? Thank you again and awaiting for ur positive reply soon.

9 10019

Diffrectiate between earthing and neutral

TATA,

6 8063


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Un-Answered Questions { Electrical Engineering }

What conditions are required for transformer to operate at low frequencies ?

1513


what are the difference between PLC and embedded

1639


If you have an earth with pilecap then your resistance is really low. why and how?

1425


I PURCHASED A DEISEL GENARATOR SET OF AVR TYPE& RATING 125KVA BUT SOME TIMES THE OUTPUT VOLTAGE IS FLUCTUATING WHAT ARE THE PROBABLE REASONS GIVE ME

1395


I am shobana from Chennai. I am having my personal interview on 19th Dec at Chennai.kindly mail me the questions to mail id shobana.shanthi@gmail.com

1859






What range of speed can you get with the field control method of speed control of d.c. Shunt motor?

653


there are cam operated switches - why we call cam operated , What is cam ?

1461


How many size of cable required for a 300m long and 30kw inductive lode

892


i will applied in 1U-1W on 440 volt primary delta side. what is the result of magtic balance test

1366


What is the difference IN MCCB's between thermal magnetic and electronic tripping system ?

1535


What are the factor to be consider for CT selection in 132kV substation?

1609


What is the HVDC Transmission System? What are the conditions applicable to lay an HVDC Line?

1853


Sir, I m 3rd year student 4m DCE and want to do internship in siemens or l&t or any other mnc related to electrical engineering. please tell me the procedure 4 same and oblige me

1514


If a air condition consume 2.50 to 3.00 amp then how much it will consume in watts if it is running 10 hours out of 24 hours????

1436


what is the purpose of high speed earth switch in gas insulated substat

2525