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ABB Electrical Engineering Interview Questions
Questions Answers Views Company eMail

what is the difference between Current transformer & Capacitive voltage transformer

2 3597

How do you know when the battery is fully charged?

6 7698

What is the effect on in Zone and out zone fault if Phase side CT is Vk/2<30 mA and Neutral side is CT is Vk/4<30 mA for Transformer REF protection

1973

What is effect on in zone and out zone fault if CT chosen for phase side is Vk/2<5mA and Neutral side is Vk/2<15mA on REF protection of Transformer

1307

What is the basis for selecting Vk/2 or Vk/4 for REF and Differential protection of Transformer and What is the significance of magnetising current

1221





what is the purpose of high speed earth switch in gas insulated substat

1927

how to modify DOL control panel into Delta Y connection?

941

how many testing use in power transformer?tell equipment names?

2 3662

what is the meaning write of AC1,AC2,AC3 .....power contactor

7 26465

xpression 'document.FrmQF.myemail' [

987

Differentiate between power relay and reverse power relay?

2 5263

what effect on electrical equipment if PF is gone over 0.996 in leading when provider say that its keep in minimum 0.996lagging

3 4540

What is the difference between earth and neutral

4 6049

for a machine R=130 KVA Y=132 KVA B=144 KVA Then what will be the total kva

3 3733

what is the rating of Insulation tester for measure 15 KW, 3 phase 415V 50 HZ induction motor?

2 3987

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ABB Electrical Engineering Interview Questions





Un-Answered Questions

What do you understand by numeric promotion?

47


what testplan contents and what test strategy contents,what is the diff b/w them

1102


How would you use or access more than one database at a single siebel application?

51


Why do we need servlet filter?

41


descriptive program for a yahoo mail that is in yahoo mail suppose check box mailid subject assume it is like this format all things are in webtable the question is suppose some mail ids are there in that mailids i want to select the check box wich is before a@gmail.com and after that i want to click on delete button

1271






Python ­ How to create a multidimensional list?

56


When we do cardonitriding or casehardening operation for a plain carbon steel the case depth, hardness & microstructure are not alike why and define what are the basic thing, which makes such a difference.

107


What is difference between && and & in c?

21


How does propagation differ between Advanced Replication and Snapshot Replication (read-only)?

1094


What is google hummingbird algorithms?

36


Explain the function of a dd statement?

37


What is a sql driver?

9


What is the difference between mongodb and oracle?

1


What is jms and how it works?

10


What is the method of calling standard – interface program from pl/sql or sql code?

40