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ABB Electrical Engineering Interview Questions
Questions Answers Views Company eMail

How to identify Motor leads in their order coming out from winding without tag (U1, V1, W1 & U2, V2, W2)?

6 34879

I have a transformer whose primary operates at 230V, 50Hz for which the secondary voltage will be 12V, 50Hz. What will be the secondary voltage if the primary is fed with 400V, 8KHZ Signal?

6 5450

Why TAP changer provided in primary side of HT transformer ? and why not in secondary?

9 37669

What is system earthing?what are the types?

1 1460

Why P.F(power factor)relay should not be connected to the D.G(diesel generator) incomer side

1 2161





How can we calculate the KVA rating of a Distribution transformer from its core details?

786

What is the min.& max distance between two earth spikes is required for measuring earth resistance of an earth pit? Is the manufacturer of Earth tester decides this? Pls explain.

3 6106

What happens if the capacitive reactance of a transmission line is very high?

5 10652

what is the purpose of battery tap voltage.

3 12851

Why we Specify Transformer rating 433 V Instead of 415V ?

7 17668

what is the diff. between x'mer , isolation x'mer & ultra-isolation x'mer ?????????????

710

what is the procedure for three phase motor differential relay testing can it do with single phase test kit?

1 9812

What is power factor ?What are the benefits of improved power factor & how. Please explain with examples.?

5 8332

What is Grounding? any difference b\w earthing? if yes plz explan??

3 4170

why generally transformer are in star to delta or delta to star used?

8 14859

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Un-Answered Questions

What factors can change the pKa value of an amino acid residue, and in which direction?

1266


What is the advantages of using clearcase tool instead of sharepoint with regards storing files?

3977


can any body give the banking domain concepts/links

2840


Can we Test Welcome Screens and Process Images with QTP

665


What is oracle service contract?

610






Connection diagram for KW meter and  Kva meter

877


Hi Can any one tell me what are the API's used in requisition import.

731


why you want this job (specially when you go for first interview and changing the industries)

1324


how can one get scholership based on gre score ang how much scholarship one can get, plz suggest the way one can apply and get scholarship

1778


Give me a scenario of someone has mistaken for giving wrong instructions and did you do if you were on that position?

401


what will happen and why if i will acess the methods of superclass which is declared as private by a object of same subclass.

934


Can any body worked in QA in Finincail / Trading experience. i appreciate if you ans my some questions.

759


Design an implement of the inputs functions for event mode.

1055


how electrical earthing maintenance done in industry?

171


On which Dimension Table you implemented SCD Type in your Project

799






ABB Electrical Engineering Interview Questions
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