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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 10047

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

9 49131

What is system earthing?what are the types?

1 3679

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

1 4175

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

2070

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 9517

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 6430

Explain the working principle of variable frequency drive?

3475

what is the purpose of battery tap voltage.

3 24678

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

8 38613

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

2348

How to estimate the cost of projects ?

3 17772

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

What is the significance of the nmi pin in the 8086?

1016

What exactly is dependency injection?

448

Explain different types of wastes?

376

What is trellis?

How to convert a string to lowercase?

1172

What is dect?

769

Differentiate between DAO,ADO and Adodc as in data access objects?

6855

By Using Visualizations,what Goals Can Users Can Achieve?

1094

How does latex agglutination work?

2274

Why are like to work in my company?

2640

where is excise amount posted?is he asking abt table name or any other t code? if he said table name so how to find the table name?

2242

What is sqlite used for?

1002

i had aplied Hindustan Petroleum corporation limited for the post of maintenance technician -Electrical,i want model questions,if anybody have please send it or please advice?

1874

What are some ways in which a company can reduce the need of inventories?

2183

What is work basket?

512