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Electrical Engineering Interview Questions
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what is mean by harmonics?Type of harmonics?

 6 6522

hi , i have 150 kw loud and we need 50 m cabil,i want to know wich size cabil we use. thanks

 1650

Why let through energy not considered for ACB breaker while cable sizing?

 1854

Why electrons flow only one direction in semiconductors. why can not flow both directions

 1 2895

how can i apilly for electrical c licencese.sir,i completed B.Tech in electrical & electronics engineering in 201onot working any company

Subros,

1474

why ac ratings are in tons?

 2 3959

if a bird sits on the service wire it didn't get shock then why the human get shock when he touches it(assume that human is not on the ground and any object i.e. in space)?

 5 5469

why power factor is only cosine angle not sine angle?

2 4580

when measure the core loss of three phase distribution transformer or three phase reactor loss, one phase shown negative watt loss. why??

 1512

what is the difference b/w bus reactor and line reactor?

 1 15944

how to decide the capacity of accl

 1898

What is Scheme Test of High Voltage Switchgear. Which tests it includes.

Siemens,

1886

How calculate cable size & voltage drop for the following requirement connected load 150 KW distance cable length 1000 M voltage 3 phase 415 v.

 1 3189

how to put cable sizing and cable glands size for respective cable & Cable Lug size in a DB sectors???

 1641

Difference between copper earthing & aluminium earthing?

2 4686

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Un-Answered Questions { Electrical Engineering }

If an electrical component has a positive temperature coefficient, how come such components have high power losses due to heat if current decreases when resistance increases? assuming power given by I^2*R whereby the Resistance is infinite.

620

what are the reasons of CT circuit faulty in busbar protection scheme?

949

how to calculate fuse rating for a motor

4875

What is the different types of cable & current capacity of cable

1436

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

2273




The inventer is a battery, but if lost current at home u will turn on the fan but the is AC and inventer battery is dc . Then how the fan was rotating. What device Or machine in fan converst the Dc power to Ac power

596

what happens to the water pump if ground water level is slowly decreasing?our water pump is varying from no-load full-load due to this problem

1202

How the over load setting for HT Motors calculated-provided in Numerical Relay

1184

what is the condition for YnD11

2069

Is the theorem applicable to ac sources?

605

it is possible to rotate the DG engine dc starter with wrong polarity connections? why?

1726

How to measure current and voltage in an ELV circuit

3604

a governer in an Ic engine controls the

692

why ht motors are star connected?

1418

We have 110Vac ,10A ac supply which is converted into 110VDC & How much DC current? which factor is reqired for dc current calulation?

4480

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