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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 35641

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 5517

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

9 38280

What is system earthing?what are the types?

1 1551

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

1 2187





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

803

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 6149

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

5 10753

what is the purpose of battery tap voltage.

3 13268

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

7 18144

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

725

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

1 10047

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

5 8449

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

3 4211

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

8 14994

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Un-Answered Questions

How can we create the complete backup of data in the oracle.

970


What is XPath Query ?

1011


What is exception class and test class. How to use it?

105


How to confiner single router two services provided. Both service provided are same Speed

1093


in natural gas indirect water bath heater,how to prevent the problem of backfire from firetube during ignition...becoz of this backfire performance of wbh is going low.

1328






If a calulator having 3 buttons (of any number)in 3 of them one is not working properly due to which answer is wrong always. write a script to find out which button is not working properly ?

665


What is Shared Hosting ?

711


This question is belong to linux support. "one of my customer told to me, my application is getting slow response". how to resolve the issue. what are the steps you will follow to resolve the issue.

612


___ argument can be used to make a menuitem into bold.

517


which property used to add a menus at runtime?

732


what are sap fico faq's in interview

1026


State & explain the various financial & non-financial incentives to motivate the people in an organisation.

2153


What is the difference between automotive production and mass-production.?

876


Is there any sign of larvae or mature insects with the naked eyes?

894


How to prepare for the post State bank of india clerk personal interview ?

1267






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