Electrical Engineering Interview Questions
Questions Answers Views Company eMail

Why charcoal and salt add in earthing pit.

Garware, NTPC, Sterling Wilson,

6 25542

How CFL &T5 tube light glows?

HAL,

1590

Is it required to use Automatic transfer Switch in L&T panel board if we use AMF panel with DG set? How the single line diagram will be? Please forward the material to sreenu_207@yahoo.co.in

HAL,

4242

How will be the single line diagram of series trip HT breaker? how it works?

HAL,

2084

Is it required to use 2 nos of body earthings to any machine though if we use TP with E supply is provided to Machine?

HAL,

2 3364

What Should I Know about Metering, Switchgear and Panels?

2 4489

What are the two types of transistor and how they are made?

2 3612

How to reduce power factor correction capacitors failure in an industrial environment with vsd and computers usage in the system

ABB,

2 3863

What is Primary And Secondary Injection Test of Relay and Other Electrical Devices. How IT is carried out.

3010

What is Magnetic Current Test of Transformer.

2 8883

What is Earth Fault and Over current Fault.

1 5801

how much current will take for 1kw power. and what is the eqoutiion which is connecting with kw and A.

2 12005

how much current and power in watts can be carry by 2.5^2mm cu wire and 4 core 10^2mm Al cable?

1 4415

what are the safety of chiller.

7 25383

HOW TO CONVERT SQ MM OF A CABLE TO DIAMETER, EG. CABLE SIZE IS 185SQ.MM WHAT IS THE DIA OF THE CABLE??????????????

Parsons, SWAN,

3 50684


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Un-Answered Questions { Electrical Engineering }

Dear sir, By which formula u can calculate for a particular kv line there is a range of mw.

1693


which metal is use in shunt

5215


WRITEDOWN FEW RELY CODES

1798


What is the rating of circuit breaker needed for 300 KVA load in 33 KV supply line in a transformer of 33 KV / 415 Volt ?

1333


What are the relays in ACB and VCB

1686






please tell me when we start motor without load in star or delta connection whose current above condition,pl write formula

1784


lenz law application and define

2212


if the motor rated speed is 950rpm. how to change the above rated speed? is it possible?

992


What is different between Difnit time and instatous over current relay

1972


Write the analogous electrical elements in force current analogy for the elements of mechanical translational system.

751


describe the constructional features of an auto transformer and its principle operation

1801


Define what is power quality meter ?

650


what reason of line current and phase current in star connection and line current and phase current not equal in delta connection?

1566


WHAT IS THE CURRENT CARRYING CAPACITY OF 2.5/3 CORE HI TUFF CABLE,WILL IT SAFLEY CARRY 8.6 AMPS OVER 120 METRES,CAN YOU ALSO ANSWER WITH FORMULA FOR WORKINGS OUT ,THANK YOU 3RDYR APPRENTICE.

3134


What are the different types of LT Cables?

613