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ABB Electrical Engineering Interview Questions
Questions Answers Views Company eMail

What is the function of Lightning Arrester & Wavetrap in Power system ??

18 76233

what is meant by insulation voltage in cables? explain it?

4 18153

from which subjects most of the technical que will b asked for hpcl(electrical).pls help me

1559

STATE AND EXPLAIN SUPER POSITION THEOREM.

3 17435

WHAT IS THE SIGNIFICANCE OF VECTOR GROUPS IN TRANSFORMER? WHAT WILL BE EFFECT WHEN PHASE DISPLACEMENT CHANGES IN TRANSFORMER?

5 23783

WHAT IS DGA TEST FOR THE TRANSFORMERS.

3 18618

we hav seen in electric engine of trains only 1 wired slidng conecctn is there frm ovrhead line,howevr to complete a ckt in dc postv n negtv two conection has to b there...so where is tht negative is been connectd or where it is grounded...?

5 6498

What is the difference between Isolator annd Circuit Breaker.

21 72001

in control panel, how can i measuring the distance between one bus bar to another bus bar. then now only for bus bar. in mpcb and contactor also. that means one mpcb to another mpcb how much distance? how can i calculate that.

1832

During a temperature rise test of a bus duct, it is fed with 415 volts at 2000 amperes. Why dont we get an electric shock if we touch the bus bars?

7 12529

what is the difference between the 94 lockout relay and 86 lock out relay. I have noticed that the 94 lockout relay is activated when the distance realy is activated and 86 is activated when the 87T differential is activated. but why can't the same lockouts be used for both the protection schemes

10 65675

What is the difference between AMF panel and DG Synchronization panel? please define the working of both the panels?

3 32928

what is numerical relay explain its operation

2 8312

How can we calculate strength of copper hich is supplying electric power to heater and in it hold the heater also and what r all types of forces which is acting on it...

1471

comparision between mcb,mccb,elcb,flcb,elcb in details

1773

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ABB Electrical Engineering Interview Questions


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