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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 4699

How do you know when the battery is fully charged?

6 10367

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

3035

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

1867

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

1869

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

2505

how to modify DOL control panel into Delta Y connection?

1448

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

2 4788

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

7 32337

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1560

Differentiate between power relay and reverse power relay?

2 8461

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 5993

What is the difference between earth and neutral

4 7671

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

3 5166

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

2 5110

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ABB Electrical Engineering Interview Questions


Un-Answered Questions

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396


How many types of php frameworks are there?

461


How many bits are used to represent unicode, ascii, utf-16, and utf-8 characters in java programming?

517


How to generate the report from excel sheet?

551






Explain what are the major data structures used in the rdbms?

481


Why do we partition data?

588


What are synchronized methods ?

580


Give example of a pure virtual function in c++?

549


When do you use denial scenario in outbound delivery in ewm system?

385


how to use like conditions? : Sql dba

533


What do you mean by access modifier?

519


Name the major stock market indices.

679


What is the difference between class inheritance and interface inheritance?

553


What's the difference between a *.WSDL file and a *.DISCO file?

2906