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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 62434

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

4 14021

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

767

STATE AND EXPLAIN SUPER POSITION THEOREM.

3 14625

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

5 19220





WHAT IS DGA TEST FOR THE TRANSFORMERS.

3 15247

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 4030

What is the difference between Isolator annd Circuit Breaker.

21 59678

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.

989

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?

6 7728

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 45600

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

3 24850

what is numerical relay explain its operation

2 6166

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...

671

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

966

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Un-Answered Questions

first aid to person affected with electrical shock

1013


sap fico masters explain

1003


Gather Information For better understanding &analyze cases received through LNOB for pirs &ccrs

722


while creating order in am getting an error company was not supplied in function module interface how to resolve

2664


How do we upgrade from SQL Server 6.5 to 7.0 and 7.0 to 2000?

821






How to Extract RGB components of a color?

1251


What is different command used in command Prompt while using QTP?

863


How to calibrate Toxic gas detector?

406


why we are performing linearity test for assay and rs?

1177


Hi, Cansomeone please send the system refresh doc , it's very urgent for me. Thanks in advance.

680


rational decision making steps

1030


composition of gun metal

672


How do Merge subscriptions work?

862


please can you give me some banking domine calculations developed in framework manager plzzzzz thank you.

1005


If a rotary UPS is in line through grid power; What would be the impact on Power Factor if the load through rotary ups is 25% , 50% , 75% & 100%. Will the power factor reduce with less load?

595






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