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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 10058

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

9 49156

What is system earthing?what are the types?

1 3686

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

1 4183

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

2079

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 9526

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

5 15737

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

3 6432

Explain the working principle of variable frequency drive?

3478

what is the purpose of battery tap voltage.

3 24689

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

8 38626

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

2352

How to estimate the cost of projects ?

3 17783

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

1 15375

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

5 12992

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ABB Interview Questions

Un-Answered Questions

How do I find available ip addresses?

1101

What are dynamic actions?

1080

How do I create a drop down menu in wordpress?

176

What is the difference between role and profile in salesforce ?

498

Difference between undefined and undeclared variables?

961

What is the main objective of creating Cassandra?

106

What is the mvc model?

1017

Where is unix used today?

898

Explain how to get the geolocation data on a picture?

964

Which is the brighest star?

108

What is a package ? What are the advantages of package ?

1093

How to determine the type of instance and inheritance in python?

887

Who calls dealloc method? Can we implement dealloc in arc? If yes, what is the need to do that?

Define mac addresses?

1090

How do I boot in dos?

537