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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 49116

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 9513

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

5 15718

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

3 6420

Explain the working principle of variable frequency drive?

3474

what is the purpose of battery tap voltage.

3 24673

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

8 38602

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

2342

How to estimate the cost of projects ?

3 17766

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 12983

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ABB Interview Questions

Un-Answered Questions

What is a step-recovery diode and why is it so called ?

1095

Differentiate between Equity Capital and Preference capital?

1115

What does a senior database administrator do?

608

Tell me what is the use of isset() in php?

1070

How to install apache web server?

1030

what is the difference between software product and software version ?

2164

Difference between table function and pipelined function?

1019

Tell me what all you know about Reliance industries?

1102

What are the 3 types of filing systems?

1080

What are all the ‘technical types of bom’?

1165

What is zeromq?

523

What is the acronym of 'mibor'?

1096

Explain what are the database objects? : SQL Server Architecture

1077

What are the various channels supported by spring 2.0?

412

Difference between overloaded functions and overridden functions

1060