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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 44943

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 7547

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

9 44968

What is system earthing?what are the types?

1 2594

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

1 3039

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

1404

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 7625

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

5 13143

what is the purpose of battery tap voltage.

3 21192

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

8 29605

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

1395

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

1 13732

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

5 10753

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

3 5738

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

8 17844

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ABB Electrical Engineering Interview Questions


Un-Answered Questions

What is the difference between adding routes, to a webform application and an mvc application?

1


What is the difference between publish by value and publish by reference?

405


What is excel word?

213


what is message file?

416


What is mean by file extension?

327






Why is java so popular?

448


Is there a windows 9?

328


Explain why fact table is in normal form?

386


Which element has the lowest melting point?

410


How do you include a comment in css?

150


Is arraylist a class in java?

345


What is site columns?

300


What happen when the expansion valve is excessively open?

1251


What are the different properties of an web object

1275


How does �side by side� work for the .net framework 3.0?

378