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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

Can anybody tell me why inductors draw lagging current and capacitors draw leading current from supply?

4 6773

what is reactive power and active power

4 4737

What is the Ohms low calculation

2 3243

Single phase and threephase power calculation

1186

What is the Impedance, inductive reactance calculations

1065

What is the RMS Value. Please discribe in detail

Bhel,

14 12606

What is the transformenr turns ratio.

5 8320

How to measure current and voltage in an ELV circuit

3195

What about electrical Units. discrive in detail

1129

Discribe type of fault in DOL and stardelta startor.

1401

What is Skin effect in Cable?

4 4650

Waht is Inductor?

2 3759

WHAT ARE THE SITE TEST APPLIED ON A SURGE ARRESTORS? DO MEGGER TEST APPLIED ON SURGE ARRESTOR? IF YES THEN WHAT ARE THE ACCEPTED IR VALUE REQUIRED FOR SURGE ARRESTORS FOR VOLTAGE LEVEL 11KV, 33KV, 66KV 132KV, 220KV AND 400KV?

5 8163

IS HI-POT TEST DONE ON A TRANSFORMER - YES OR NO? WHY?

4 10197

is KVAR (not reverse power) relay necessary to protect from excitor field failure on a brushless, synchroneus generator? Some people with previos experince tell me no but the manufacturers tell me it is designed for that purpose. Is it that it is only necessary for brushless generators and not the older style with the slip rings and brushes?

1 3382


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Un-Answered Questions { Electrical Engineering }

sugest any typical project ?

1024


If i have two 3000 kW motors and the whole facility requires a 10 MVA transformer. What would be better installing two 5 MVA transformers(one for 1 motor ) or just a single 10 MVA transformer for both of them. Give reasons for your answer.

3585


what is the effect of back reactive power on the generator ?

1316


EHV current carrying parts need to have smooth finish,then how can a 245kv GIS with emery finish can run so long?

977


Difference between on line capacitor and Station type capacitor

1159






what is the IEC standard for Power Cable installation in onshore (like in direct buried ground or above groung)

1675


How CFL &T5 tube light glows?

1200


why power not passes in plastic and rubber material

1131


Whats the difference btwn a latch, port,data bus buffer? Do they all not hold data in d flip flops??

1568


I want to merge a cable..in between two metering Cubicals which contains CT's and PT's and Energy meter..before taking merger..what are the common things required?

773


what is the difference between c power and U power acb breaker

2752


briefly explain the main blocks found in a microprocessor based system

1320


wheather the size of windings in motor and generator are the same

1095


Application Comparison between 22KV (UE)and 33KV (E) system. Are we allowed to use 33KV (E) cable in lieu of 22KV (UE) cable. What are the technical disadvantages.

1761


WHY RATING OF VCB NOT LESS THAN 630A

1472