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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

who is invented transforner (230v).......

2 2883

How to run 1ph motor(230 VOLTS its full load amps is 4.5 ampa))with 480 volts main(we didn hav neutral)Thn we go for step down transformer.Our load 10 amps,so we conisder this amps in primary are secondary side

1 2366

how can service sitting be setted for MCCB?Example for sittings IR (CURRENT RATING),IS(CURRENT STARTING) I O (current operating)?

1353

why the all high voltage transformers are in 11kv , 33kv , 66kv, 132kv like that

Bhel,

2 5732

Why we does earthing for transformer neutral point

amps, DLF,

5 9061

which is dangerous AC or DC? If so why?

4 4381

why the check zone and main zone are used for Busbar Protn. scheem?

1234

why the undervoltage relay's interlock is used in earthswitch closing operation of the 400kV line scheme?

2 3612

Why should we use Star-Delta connection in step down power transformers?

L&T,

7 15893

now a shunt motor is practically a constant speed motor , then how does it meet the increase or decrease in the load ?

1 2178

how to varied the frequency in transmission line and how i kept it as a constant one?

L&T,

2 3525

what will happen to the core losses if we perform the open ckt test on high voltage side of a transformer ?

2 2931

What will happen if the interpoles in case of a generator have opposite polarities to that behind it in the direction of rotation ?

1 2658

if the armature current in a dc generator is ac ( sinusoidal ) why doesnt the sjhape af armature mmf a sinusoidal (ni) ? armature mmf in case of a dc machine is triangular.

1108

1.what is difference between line,neutral and earth 2.IF single phase voltage is 230v ac and what should be the voltage between line to neutral,neutral to earth and earth to line

1 4912


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Un-Answered Questions { Electrical Engineering }

Why Water motor is not taking a load or pressure while everything is correct. (Note: Motor running properly)

555


What is the formula to find out two phase active & reactive power

1289


which type of questions asking for solar companies?

758


IF HT CAPACITOR IN ON POSITION IS THERE ANY LOSSES I.S I SQURE OCCURS IN THE SYSTEM

1189


1) What are your personal strength? 2) What are your personal areas of improvement? 3) What are your expectations from from a particular job? 4) what are your carrier objectives?

1665






Explain about Dubai electrical sysaem? Explain about Dubai drinking water system? Explain about Dubai Burj tallest building Electrical,Water.etc.. maintenance system?

1192


300m long and 30kw inductive loade 3phase supply how many size cable required

607


please describe the Transformer setting, Motor setting, I/C setting, Tie setting

885


what is the breaking capacity and making capacity of circuit breaker and how

1188


how to increase senstivity of ct

1495


how braking & making capacity of circuit breaker is calculated?

1180


Can any one know what are the symbols at the down (below) the analog ammeter??? there are 4 symbols which are they ?????

1060


formula for calculation of switchgears(i.e. contactor, fuse, cb, relay etc.), if load current is given?

1252


What is the Basic Difference bitween Long Shunt Connection and Short Shunt Connection in DC Generator?

1272


what is different between phase and netural

1110