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

2 3926

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 3072

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

1773

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

Bhel,

2 6539

Why we does earthing for transformer neutral point

amps, DLF,

5 10552

which is dangerous AC or DC? If so why?

4 5663

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

1700

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

2 4616

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

L&T,

7 18738

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

1 2768

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

L&T,

2 4502

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

2 3937

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

1 3442

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.

1534

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 5573


Post New Electrical Engineering Questions

Un-Answered Questions { Electrical Engineering }

Can any body tell me the different types of LT cables & their application.

1658


I Just want do EHS Certified Certification Distance Course From Govt approved,so can any body provide me details.

1733


how to find the resistance and gap volatage of the diode??

1601


what is the circulate the diesel in DG in side pls tell parts name and picture with circulate the diesel

1577


Explain the term parallel path in dc machin ?

1799






According to underground cables a) stress b/w sheath & conductor is high b) inrush of core & conductor

1545


what is the purpose of bypass mode in energy lighting transformer?

2092


Is it posible to instal one more SMDB from the existing SMDB and is it practical.

1635


WHAT CAUSED THRESHOLD VOLTAGE TO EXIST?

3552


what is the reason for indication of light in the earth lamps of main switchboard.if there is an earth why does one lamp get dim and the other two bright.

1910


WHAT WOULD BE THE FORMULA OF WIRE GAUGE FOR A FULL LOAD CURRENT

1731


What is ignition module of a CAT Gas Genset G-3508 Engine, Alternator SR4B Series. HOw its checked for correct functioning.Is it repiarable or replacable?

1485


What is Anemometer used to measure?

713


Why PS class CT is always preferred for Differential protection?

1131


Battery is a voltage source? give one example of current source and why?

1137