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Electrical Engineering Interview Questions

4612

what is the difference between relay, contactor

2444

Capacity of circuit breakers all types

1579

Why the field rheostat is adjusted such that the voltmeter reads 380V

1330

1.dg on load alarm/stop alarm... 2.dg on load. piu alarm alarm kaise chek krte hai

GTL,

865

difference between substation & grid substation?

GMR,

3867

3 phase supply is there Total kw 100 howmuch cable put the load

2515

transmisssion type

766

how to calculate cable size in transformer, distribution side?

1686

What is the difference between Welding Transformer and Normal Transformer?.

DAE,

2583

Why frame of the motor is specified?. If we mention KW and voltage level,automatically frame is decided or separately frame is compulsory to mention?.

DAE,

876

Is there any rule to select the voltage of motor based on KW rating? What is the rating above which lt motor becomes the HT motor?.

DAE,

793

Whether cable is designed for different fault currents?

DAE,

1282

Whether amorphous core transformer is available in India?.If available then up to what rating of voltage and KVA?.

854

What is the difference between amorphous core transformer and CRGO core transformer?.

DAE,

2478

Un-Answered Questions { Electrical Engineering }

What are the factors which influence the choice of specific magnetic and electric loadings of a synchronous machine?

1035

If only R Phase is connected in 2 pole elcb, n is not connected than it will work or not in ground fault.

551

why 5kW motor becomes unbalance if its relay trip 1st time and its set value is 7.0 A

1065

hi frnds what is meant by harmonics & what is meant by third hormonics,where its will occur ?thank u

1100

Two electric lamps 40 W, 220 V each are connected in series across 220 V. What is the power consumed by the connection?

557

when we design electrical schemes of 11/.415kv distribution..wen and were should we show the relays??what is the function of it?for example..we place EFR Relay CT between transformer neutral link and transformer earth.Like this what are the other type of relays we should use?why?where?Explain please..Thank you

980

A logic circuit that provides a HIGH output if one input or the other input, but not both, is HIGH, is a(n)?

230

what is meant by impulse voltage?

1082

how unidirectional torque is produced in DC motor?

5725

How to use earthing on shipments.

449

WHAT CAUSED THRESHOLD VOLTAGE TO EXIST?

3064

what is the calculation method to design core and winding of a 200kva 3phase distribution transformer?

1569