Electrical Engineering Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

if my load is not in continuous operation so what type of panel is required APFC or fixed capacitor bank without APFC whether C.T is required in both cases compulsory? explain detail

1 2481

25 kva load,

Voltas,

1 3358

Currently what is the highest capacity (MVA) of SPPg generator available in the market?

SPPG,

1871

How to test the Secure Elite 440 Multi function meter working condition.

Sadanand Constructions,

2228

how single phase preventer works ?

2596

Why IR value of the (HT cable Plus synchronous motor) is less while individually having IR values in GΩ?

1865

what gas is present in incandescent and florescent bulbs

4 5241

What is a advantage of Self Reset Lockout ? On Fault breaker get trip & fault no longer exist then self reset lockout how inform us?

Bhad Engineers,

1934

What are formula we can apply to determine the HT/LT current of 11KV/433V transformer except KVA/LV×√3. ?

2 37869

a new 3ph induction motor doesn't rotates their ratted speed, why ?

Sail,

2 3835

Why do we require transformer with less specific weight if supply frequency is increased?

1645

What is the difference between bundled conductors and double circuit?

Power Grid,

1 4774

why do select 11000v rubber mat even we use only 415Volts

Saint Gobain, Tata Steel Limited,

1 4125

Why we apply 100ADC for contact resistance measurement?.If we apply AC what will happen

4 4390

operation of protection relay watchdog contact?

L&T,

2469

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Un-Answered Questions { Electrical Engineering }

1. what is usage for power factor in industries?? 2.why we need to monitor power factor??

8456

List out the the types of Mounting Light fixture?

1666

I WANT YHE TECHNICAL AND ELECTRICAL SPECIFICATIONS OF 2x4MW 11KV 2x10MW 11KV 2x25MW 11KV 2x100MW 11KV HYDEL POWER PLANT i.e PROTECTION SYSTEM,MONITORING,CONTROL SYSTEM,GENERATION,SYNCHRONISATION,METERING PLEASE SEND THE DETAILS TO MY MAIL ID SPRAVEEN_222@YAHOO.CO.IN

2159

What is a dc motor?

1239

what is the reactance,capacitance & impedence electrical armoured & unarmored Cables.

2271

How to calculate LT XLPE CABLE for 11 kv / 433 v , 1000 kva oil type transformer system?

2026

What is systematic error?

1433

Whether amorphous core transformer is commercialized or not:Name of company making amorphous core transformer and what are different rating?

1861

What is Fire Panel ? How it works ?

2134

i will applied in 1U-1W on 440 volt primary delta side. what is the result of magtic balance test

1851

How does a tertiary winding filter harmonic(espcially 3rd one) from entering into load system?

1876

A ii kv 1200 A Breaker combination fixed in a cubicle. How many ampere Fuse is required? If fuse is not using, Why?

2048

we are having 15kw and 3kw motor both can run in same time , instead of using copper we are using ug aluminium cable , 35 sq.mm is suitable for its current carrying capacity..?

1790

Dear sir, In our plant have Station Transformer having capacity,i want to know, why LV side 40 - 40MVA is given? & how we can get 6.3 KV supply from tertiary(i.e. Open delta connection), Vector Group YNyn0 - yn0 +d MVA Rating 80MVA / 40 - 40MVA + 26.7MVA Voltage rating 420 (Tap range +6,to -10)81.25% /11.5KV - 11.5KV +6.3KV

2231

what irequirment need to be followed when working on live equipment

1858

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