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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 37019

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 5662

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

9 39486

What is system earthing?what are the types?

1 1772

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

1 2261





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

867

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 6269

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

5 11022

what is the purpose of battery tap voltage.

3 14262

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

7 19246

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

791

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

1 10637

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

5 8669

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

3 4373

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

8 15327

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Un-Answered Questions

Please give the model or previous year question paper for the lecture post in government Engineering College (Electronics and Communication)

644


what happen if the supply is given to the stator of the 3phase induction motor with out assembling the rotor ?

766


Does QVCS integrate with any IDE?

1048


how much of quantity of material required for execution of one cubic meter of random rubble masonry in 1:3 cement mortar

1086


explaine me what the stock market points & how to decide increase in points.

904






What is the Difference between Ac Drives and Dc Drives? According to application, speed, Torque, cost, Reliability, Construction, Motor etc... Thankyou !!!

930


3-4 ques of instrumentation : data based.

905


What is 2B1Q?

527


five benefits of using standard terminology in the measurement process

1682


What are Unary arithmetic operators?

314


how to make unlimited id(1rimjim,2rimjim,3rimjim....etc) login grp chat pogram for jabber?

1180


What is VisiBroker's Smart Agent (osagent) Architecture?

789


What is the Diff. btw Manule Pull Station & Manule Abort Station Switches used in FM200 System??

621


what is frame structher in SDH .

1002


How do I get the QTP scripts result in xml format by using vb script function?

957






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