Electrical Engineering Interview Questions
Questions Answers Views Company eMail

how can I improve the current at same voltage? if yes is there any circuits?

2 3324

how to calculate regulation constants for over head lines? and what are the regulation constant for raccoon conductor at different voltage level and different P.F?

1458

If i=10+10sin314t then find the rms and average value of current with explain?

Heptacare, TCS,

2 13209

If ct ratio is 250/1 and mtr is of 5 amp, what will be mf?

1 2457

What is process of anneling transformer core

1459

Whether should be the oil level in OCTC transfomer? It should be upto winding immersed completely or should be upto tap changer s/w? How it will affect the performance of the transformer. Rating may be 33KVA

1403

iam completed my DEEE in eillm university. can i get the c licence in tamilnadu its possible or not

1 2875

why motor range is available 22kv,30kv,37kv,45kv and so on? why motor range is not available 21kv,24,25,26,27kv and so on?

Government, PSU,

2354

what is ratio of copper wire size and current ?

1367

why select the 3 phase power supply system in electrical system.

RSE, Yamaha,

3 6056

i HP = ?? 746 watts or 735.5 and how??

1 5419

What is the effect on in Zone and out zone fault if Phase side CT is Vk/2<30 mA and Neutral side is CT is Vk/4<30 mA for Transformer REF protection

ABB,

3088

What is genrally the % Impedance of a Dg set? How can we calculate Earthing conductor size for a DG set?

3422

What is effect on in zone and out zone fault if CT chosen for phase side is Vk/2<5mA and Neutral side is Vk/2<15mA on REF protection of Transformer

ABB,

1897

What is the basis for selecting Vk/2 or Vk/4 for REF and Differential protection of Transformer and What is the significance of magnetising current

ABB, Jindal,

1914


Post New Electrical Engineering Questions

Un-Answered Questions { Electrical Engineering }

1.what is mean by 8/20 micro sec waveshape

1790


Is it true online ups having bypass mode if it is true then why we called ups because it is interrupting power when goes in bypass mode

1546


what is the difference between ups & inverter

5489


Why is a plain induction motor unsuitable for wide speed control?

1817


what is inter connected dc generator?

2230






i applied for c licence with my one year apperents trainee and i have attaced with A grade contractor company experiance that is for 14 monts experiance this document is sufeicant for c licence? pls tell why they rejected

1697


How to calculate no of EARTH PIT? Describe the formula as per IS standard?

3187


can we make a electric generator,which can not use any type of fuel,air,solar,gas,thermal,coal,petrol,etc and able to produce electrical energy (or self electricity generating generator)

1496


What is pole of the system?

668


What would be the size of wire used for 2 Ton of window A.C?

1424


what is the difference between vector scale and vector diagram?

3760


Does outdoor isolator loose connection cause short circuit current in that circuit? if yes then how ??

1203


Basic motor transformer generator

955


I HAVE A 50A MCCB AS PER DESIGN LINE WIRE CONNECT UPWORD SIDE AND LOAD IS CONNECTED TO DOWNWARD SIDE TO THE MCCB.IF NOW ANY ONE CHANGE SUPPLY & LOAD(WISEVERSA) WHAT HAPPENS ? DOES MCCB OPERATION OR WORKING FUNCTION NORMAL IF YES THAN WHY THERE ARE MARKED LINE & LOAD ON MCCB.

1920


DC transmission

1601