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ABB Electrical Engineering Interview Questions
Questions Answers Views Company eMail

what is the difference between Current transformer & Capacitive voltage transformer

2 4785

How do you know when the battery is fully charged?

6 10552

What is the effect on in Zone and out zone fault if Phase side CT is Vk/2<30 mA and Neutral side is CT is Vk/4<30 mA for Transformer REF protection

3102

What is effect on in zone and out zone fault if CT chosen for phase side is Vk/2<5mA and Neutral side is Vk/2<15mA on REF protection of Transformer

1904

What is the basis for selecting Vk/2 or Vk/4 for REF and Differential protection of Transformer and What is the significance of magnetising current

1920

what is the purpose of high speed earth switch in gas insulated substat

2541

how to modify DOL control panel into Delta Y connection?

1492

how many testing use in power transformer?tell equipment names?

2 4879

what is the meaning write of AC1,AC2,AC3 .....power contactor

7 32619

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1596

Differentiate between power relay and reverse power relay?

2 8576

what effect on electrical equipment if PF is gone over 0.996 in leading when provider say that its keep in minimum 0.996lagging

3 6130

What is the difference between earth and neutral

4 7795

for a machine R=130 KVA Y=132 KVA B=144 KVA Then what will be the total kva

3 5276

what is the rating of Insulation tester for measure 15 KW, 3 phase 415V 50 HZ induction motor?

2 5201

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ABB Electrical Engineering Interview Questions


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What do you understand by SQL*Net?

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Polymer chain growth can be terminated by b-hydride elimination or by reaction with h2. What is one advantage of the h2 reaction? : Polymer Chemistry

694


What is f:validatelongrange tag in jsf (javaserver faces)?

54






Write about abstract base classes?

598


What is meant by priority sector?

698


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572


Explain 5 io best practices?

599


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697


What is macro environment and it's components?

640


Define splunk?

227


What is database in php mysql?

497


How do you work with the internet of things?

1


What is the difference between an hdfs block and input split?

61