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Electrical Engineering Interview Questions

we have one oven for 12 zone we are installed ir lamp in oven we control load from thyrister and 0 to 5vdc so our zone no 8 getting bright in fraction of second so what we do.. Please answer

847

if There is Short circuit in Power Transformer, what will happened to Buchholz Relay.?? How Buchholz Relay will respond.??

2484

how to find total current when kva is 30.4 given ? should we use root 3 (1.732) in the formula?

2033

why we use 11 kv 22 kv and so on ?

3347

what do you mean by partial discharge in cable

1873

how much current capacity of 300 sq. mm cable (4 core aluminium) and 150 sq. mm cable ( 4 core aluminium)

21159

how much current capacity 250 amp. mccb please tell me about whats are the reasons to trip 2 or 3 times in a night. and what are the steps to short out this problem

3640

What is the difference between power,voltage,current? and with example

2899

How to calculate the copper in HT motors if KW, RPM & Voltage is given

2083

Can you any explain about active,reactive and apparent power in power system with example.

1357

HOW TO SET THE EARTH FAULT SETTINGS IN ACB????????????

1114

In UPS, battery connections if parallel connection given, what will happen?

2823

Why earthing done?

CBRE,

3457

What is a fuse? How does it work? What are materials used?

1049

3) How earthing is done? How it measured? Write the method for earthing? How the earth resistance is kept low?

3348

Un-Answered Questions { Electrical Engineering }

What is clock position of Transformer?what are the clock positions are there?and what is different of them?

2035

Which cable is use for rtcc control panel

767

why ht cable end termination don't have a gland?

821

why current flow to the opposite direction of flow of electrons???????????

1192

what is the importance of Partial Dischage test for Electrical Equipments

1003

In the N-series schneider reclosers. What is the difference between current during fault time and current at tripping? This appears in the Event log in an event of a trip out.

839

what is the difference between changer, converter and transformer?

497

what is (+) and (-) in generator field detector stand for?

924

What is Diff btw Fire Alarm & VESDA System???

1338

i need to now what will be the cable size to the following load, transformer to distribution panel distance 110m, load 1000kw, voltage 400v, pf 0.85, permissible voltage drop 2.0%, overhead line, atmospheric temperature 35 degree c.

711

how line turns ratio changes in 3 phase with change in connection

956

how works inductive &capacitive sensors?

1062

What is core CT & it's function?

1137

what types of electrical & mechanical test conducted in switchyard?

1206

TELL ME WHAT IS INDUCTOR AND CAPACITOR WHAT IS IT BASIC OPERATION ANDFUNCTION?

1084