Electrical Engineering Interview Questions
Questions Answers Views Company eMail

What happens to the synchronous generator when reverse power is given to it?

1 2458

If you know per phase current and phase to phase voltage; what is overall KW of the circuit?

ABC, GAS,

1 1801

I want to measure resistance between Neutro and earth conductor for 3 phase Transformer what should i do

1 1412




which type of motor is suitable for water pump?

IIM,

1 3100

what kind of battery is used in laptops

Pepsi,

4 3108

WHEN WE TOUCH THE BOTH TERMINALS OF BATTERY WHY NOT THE D.C BATTERY GIVE US SHOCK SUCH AS A.C SUPPLY?

3 2106

WHAT IS DIFFERENCE BETWEEN POTENTIAL DIFFERENCE AND E.M.F?

2 2025

In separately excited m/c,we excite the field by a dc source,what not with ac source?

1 2023




what are the protections in 132 kv class electrical systems.....? hw u define that in elctrical terms..? . . .pls answr

ABB,

2 2230

WHAT IS THE COOLANTS IN TRANSFORMER?

Bhel,

7 5210

WHY TERTIARY OF POWER TRANSFORMERS IS LOADED WITH EQUIPMENTS LIKE CT,PT,ISOLATOR AND CB

420

What is meant by a linear circuit and what is a non- linear circuit?

5 3902

What is vcb?

3 1893

why high voltage is reqiured or L.T. panels? what type of tests should be taken for electrical panels?

2 3981

What is the accepted limit to increase the choosen transformer capacity over the load and why ?

Asec,

2 1081


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Un-Answered Questions { Electrical Engineering }

Hi Everyone ! My Name is Hakim ullah khan please i need formula of Cable Rating because i want to calculate by self without check any Table Chart... Thank you.....

168


stand by earth fault protection (51G) for transformer rating 2000 kVA,Dyn11,33/0.400 V. LV NCT ratio and necessary resistor and metrosil values how to calculate

146


Is there any decided or standard frequency to check the meager testing of transformer, DG set, LT Panel in the industries in a year. I means how many times we should be check the same.

1932


How to Calculate the Fault Level of Electrical Installation

661


how to select automotive wire by mathematical equation with given current, vlotage and resistance

722


Why dry type cast resin transformers tap link blast in HV side while power shut down times on load?

664


How to select circuit breakers rating eg. if i select a circuit breakers of capacity 40 amps DC with operating voltage 28 volts and if i what to use same circuit breakers for 300 Volts DC application what is the current rating of this circuit breakers.

373


i want to know how to determine that a surge arrester work properly in 11kv system. and how to test a 12kv surge arrester

520


what are the protecyion of transformer & generators

267


How to determine the breaking capacity such as break down current and break down voltage for VCB and CT's.

701


How to measure the Harmonic Distortion of UPS ie THD?

699


PLZ EXPLAIN THE INTERLOCKING AND CONTROLLING OF CONTACTORS????HOW CAN I DO THAT?

2651


what are carbondioxide and dcp used in fire extinguishers

552


What is the difference between rulling span and wind span of of an Over Head Transmission Line?

536


In Power cable specification what is U0/U and Um.

1517