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ABB Interview Questions

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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 10045

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

9 49123

What is system earthing?what are the types?

1 3678

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

1 4173

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

2069

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 9514

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

5 15721

if mr.X get 2,00,000.00 per month salary. than how we will calculate his tds.

3 6423

Explain the working principle of variable frequency drive?

3475

what is the purpose of battery tap voltage.

3 24675

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

8 38607

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

2344

How to estimate the cost of projects ?

3 17769

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

1 15365

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

5 12985

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ABB Interview Questions

Un-Answered Questions

Is mysql a rdbms?

900

Is c is a low level language?

1143

Why we use functions in sql server?

1077

Explain the benefits for it organizations by using blackberry?

813

WHAT IS EDM?WHAT IS THE USE IN INFORMATICA? chandumba2005@gmai.com

1920

how do I disable dmp?

1989

Is a windows 10 license key valid for both 32 bit and 64 bit?

781

dialation means

2451

What is the concept of inheritance in .net?

1171

We stored into the objects OR and then write the scripting

2035

What are the different levels of persistence in Spark?

336

How can one schedule a job in talend?

What are situations where snow flake schema is better than star schema to use and when the opposite is true?

996

What is casting in python?

940

what will be the total emoluments for deputy surveyor in APPSC in the payband of ( 9460-27600). please give me the detailed information step wise?

2293