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 are the electrical engineer roles and responsibilities in chemical plant?

1684

what is difference between line differential and transformer differential?

L&T,

1736

As we know multiplicity factor derivation equation is as below MF = main c t ratio / main p t ratio * meter c t ratio / meter p t ratio * meter dial constant Where in digital meters for HT kwh import export now a days meter constant are calibrated already which is 1 So my question is For HT 11kv 110 v line values are as below Main c t and p t ratio are 11000 v and 110 v and 20/5 means 20 amp and 5 amp Now meter values are 11000/√3/110√3 and primary and secondary amp are displayed as -/5 amp on kwh meter so what will be the MF for this meter ?

NEPC,

1 2591

why cable i burning without tripping. how can protect led street lights

Cosma,

1583

why a single phase induction motor has poor power factor

1746

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

Private,

2944

What is the relation between frequency and motor rpm?

1860

why burdens of VTs is more than CTs?

1795

what is the impedence

Al-Othman,

1 3405

what is difference between 9kv 5ka surge arrester and 9kv 10ka surge arrester.

Voltamp,

1858

what is the use of current transformer in power transformer secondary side.?its connectyed in WTI

1727

Would you recommend to replace all oil filled cables with xlpe cable for hv transmission with the current technolgy for xlpe cable?

1493

what is the meaning of osr in transformer.

2147

What is different between Circuit breaker and Isolater?

1813

why genarator genarating voltage 11 KV?

1787

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Un-Answered Questions { Electrical Engineering }

What is rotary phase converter?

1092

What is the current carrying capacity of 35sq.mm flexible cable?

1463

pls tell me about ups internal connection & we have given only 3 phase supply to ups system how get 4 wire (R Y B N )

2756

Why does curving the pole faces in a dc machine contributes to a smoother dc output voltage from it?

1263

What is meant by rotor?

1283

The specific heats of the gas at constant pressure and constant volume are respectively 1.0 kJ/kg K and 0.72 kJ/kg K; the value of R for the gas is

1137

What is the vector group of a transformer,how can it be found out?

2052

How can we decide cable size from HT panel to Transformer? Please give you reply with some examples.

2219

can any one provide me a connection wiring diagram for a DG set control panel along with BOM?

2215

How to calculate that clean water supply in one Day from 150 KLD STP?

2011

I have a situation to design sub-Distribution board/Panel meant for feeding power sockets. In the incomer CAN i Take TP MCCB with Neutral Link and All the outgoing feeders with to sockets with TP MCCB and Neutral Link? P.S : My System is IT Earthing

1821

In the ACB breaker capacity is 2000Amp but this each phase taken 1250 But total beldibg load is 600amp or 700amp watt is the problem

1964

can someone explain that how the speed of the protection system affects the fault level calculation?

2092

What is the problem of internal failure in ship engine telegraph system norcontrol?

2407

why starting current is high and resistance is almost 0 during the starting of motor dc motor...?

1734

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