Electrical Engineering Interview Questions
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who is invented transforner (230v).......

2 3875

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 3027

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

1751

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

Bhel,

2 6498

Why we does earthing for transformer neutral point

amps, DLF,

5 10447

which is dangerous AC or DC? If so why?

4 5581

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

1671

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

2 4540

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

L&T,

7 18622

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

1 2721

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

L&T,

2 4415

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

2 3877

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

1 3388

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.

1512

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 5535


Post New Electrical Engineering Questions

Un-Answered Questions { Electrical Engineering }

How to maintain ac plant?

1531


State and define ohm’s law?

681


Which is the largest hydropower station in the world?

624


I am using submission of two ct in one and half scheme for 67/67N protection. Both CTs star point is grounded separately near ct box.Will two point ground give wrong tripping to 67/67N during fault or no matter.

1656


how the phase convertor changes the no. of phases

1550






How can we choose the rating of submersible motors

2173


raleigh method

1652


what can be the causes of capacitor start motor having a higher current that its actual

1514


If a 3 phase induction motor is in off condition in the conveyor and rotor of the motor keeps moving with the conveyor than the resistance of windings of motor varies. why is it so ??

1562


what is feeder bay?

1122


How we calculate the current carrying capacity of H.T. cabel?

1741


What is reactance, reluctance,capistance, pls give answeer in hinglish and be simply Jo asani we smajh m aa jaye

1585


The metal-enclosed switchgear and controlgear is subdivided into three types: 1. metal-clad switchgear and controlgear; 2. compartmented switchgear and controlgear 3. cubicle switchgear and controlgear. What is the main differnence between them. State some example.

1494


what is the defination of Cable database? What are the points are considered while preparing cable database? Is there any sample available for cable database?

1432


What is pd controller?

653