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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 4722

How do you know when the battery is fully charged?

6 10406

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

3046

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

1876

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

1881

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

2512

how to modify DOL control panel into Delta Y connection?

1451

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

2 4808

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

7 32404

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1564

Differentiate between power relay and reverse power relay?

2 8479

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 6028

What is the difference between earth and neutral

4 7699

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

3 5184

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

2 5122

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ABB Electrical Engineering Interview Questions


Un-Answered Questions

How to lock or unlock a transaction code using sm01?

1576


Different types of picking and put away strategies, why?

327


What is a demultiplexer?

527


Which language is best for aws lambda?

113


What is definingquery in entity framework? : Entity framework

513






Hello, My project requirement is like I need to create a web page using MVC pattern. I hava a bean class, jsp page, servlet, service and dao. My jsp has two fields. One is dropdown list. The option values has to get populated from the database table. The other one is a text box and its value has to come from database table. As of now I have defined the fields in bean class, got the values from database using arraylists in dao class and I called this from service class. Can anyone please tell me the workflow of how the servlet will get this arraylist and populate the arraylist values as dropdown options in jsp page? Also I would like to know the role of bean class in MVC pattern? Thanks in advance!

1808


What is a firewall?

626


What c++ library is string in?

528


In BDC, data transfer is done success in foreground mode but if we done the same in background mode it shows errors. What is the reason?

955


How do I make a list from a table in excel?

298


Where do we get the QTP and Load runner softwares CDs ( Original ) in chennai

1769


Explain the difference between risc and cisc processor?

406


Where are the auto variables stored?

593


Explain what would you consider as your biggest achievement and why?

547


How to create report in SD open sales order which covers all Organization, delivery status, shipping details and partner function details. plz mention the detail coding Tahnks, Rahul

2086