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

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

What is Grounding?

2 5179

how u change the vector group of a transformer like DYN1 to ynd11

2 6005

What are the types of circuit breakers ?

Genco, Super Max,

6 8450

Merits & Demarits of Oil circuit & Air circuit breakers ?

Genco,

2044

Two CTs 1600/1 and 35/1 are in series. while checking the ratio test of a CT(1600/1),same 1600A will also pass through the CT having ratio 35/1. Will it be harmfull to the ct(35/1),if yes , what will happen.CT secondary is shorted

3 7119

what is the function of Droop CT and where it is used?

Lanco,

3 35151

In supply RYB are mentioned. But in transformers, why they are mentioning XYZ?

3 16719

Can we use all 3 cores of a cable to connect DC motor + ve terminal and similarly one more cable for - ve terminal.

2 3996

pls define kvarh

2 6157

What is Grounding? any difference b\w earthing? if yes plz explan??

ABB,

3 7738

What is HVAC, PLS SEND DETAIL OF hvac.

6 8406

WHAT TYPES OF OIL(STRUCTURE) ARE USED IN POWER TRANSFORMER INSULATION?

4 6544

why neutral and body earthing of transformers kept separated? what is distance between two is required as per is?

6 28875

what is the pperating squvance in transmission line for circuit braker, isolater & earthing switch.

2 4643

what will happen if i connect or change line with phase terminal

1 3550

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Un-Answered Questions { Electrical Engineering }

why burdens of VTs is more than CTs?

1740

Why do we need a separate control desk & PLC control panel in Boiler plant or coal handling plant? Can we provide cost effective Control desk cum PLC panel. Is there is an specific need for control desk.. kindly advice.

2328

What is BusBar integrity test and how it is conducted?

2191

how we design a pannel to start 10HP motor with the help of star delta starter?

2168

what is a power factor?

1772

Brief me about maintenance planning & sheduling of machine tool.

2101

what are different types of electrical windings? i know the distributed winding ,concentrated winding etc but i want some detailed information, in what condition we will use distributed,concentrated windings what are the difference between them which is best, how induced emf changes by using different types of windings 20 hours ago - 1 week left to answer

1982

what is the reactive power what is the use of it in system

2123

What test must you do before powering up a circuit that you have been working on?

1817

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?

1864

What is servo motor? what is its purpose?

2016

1. transformer design formula ? 2. how to calculate the primary turns and secondry turns ? 3. core types ? 4. how to find the primary current and secondry current ? 5. how to calculate the stacking factor ? 6. range of fulx density ?

11106

what is doubling factor in making current of a breaker?

2032

what's the requirement of Dy11d0 connection of 3 phase transformer?what's use of it?

7944

What is the difference IN MCCB's between thermal magnetic and electronic tripping system ?

2004

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