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ABB Electrical Engineering Interview Questions
Questions Answers Views Company eMail

what is the function of a Master trip relay? why is it used ?

5 62362

what are different type of triping equipmen like MCB,MCCB and their differences

3 4490

Who we calculate the generator NGR resistant, generator voltage 11 KV ?

2 2855

is earthing is necessary if we use armoured cable

1 2971

How can calculate thermal overload in relay?

1 2598





ful form of gis

2 2500

Explain Creepage Distance of Insulator

855

How to calibrate or test an LT Air Circuit breaker 440 volts, 35 KA, 800 Amps ?

566

What is the meager?

6 14947

what is excitation/

687

how capacitor control the power factor/

2 3647

I have two power supply.a)govt. power b)Captive power.3 phase load connected inside factory.when source change govt. source to captive some motor rotate reverse. Is phase sequence changes when if off & on?If I off generator & on it again is it possible to get changed phase sequence??

4 2966

what is meant by LT & HT?

5 6759

purpose of breaker contact multiplication relay?

5 14147

what is post close & pre close of trip circuit supervision relay in circuit breaker control scheme?

2 14194

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Un-Answered Questions

What are the Advantages of TCP/IP?

431


how can service sitting be setted for MCCB?Example for sittings IR (CURRENT RATING),IS(CURRENT STARTING)IO (current operating)?

756


IF % IMPEDANCE OF A TRANSFORMER IS INCREASED FROM 5.8% TO 8% HOW MUCH THE EFFICIENCY OF THE TRANSFORMER WILL COME DOWN?

1118


Breif notes about accounting standards

1786


Hi all, I am using windows vista, I am in the process of learning QTP. When ever I try to work with insert mode in flight application , i am getting the error of 'Operation must use an update table query, fractional truncation(null) error. Can anyone help me regarding this?

607






Test Case for Text Editor!

741


What r all the risks u r facing while doing a project?

1136


what is the relationship between phase & neutral

850


how to create reports on screech?

1068


what's query optimization and without use of IN AND Exist can we get another way data from query

803


Hi If anyone from banglore want to know the real time senario like writting Test cases and how things actually happens in a company. I am taking a 2 hours class which will cover all the real time experiance and guidence for job. classes are counducted only at weekends. for further queries mail me at vinodhanandhan@gmail.com Vinodh Anandhan Software Test Engineer vinodhanandhan@gmail.com

590


hi, im rahul i working on project BUSINESS PROJECT REENGINEERING,IM DOING MY PRODUCTION ENGG & BPR IS MY FINAL YEAR PROJECTS, HOW CAN DO MY PROJECTS? I KNOW NX3,CATIA,PRO-E SOFTWARES (MODELING SOFTWARES)

643


"You r bourn intelligent ",your education is just a waste of time (you have to answer in support of the statement )?

1105


in sulfur process what is material of impulse line we use to connect with transmitter ? and does teflon affected by sulfur?

992


8. What is the difference between: a. Direct Costing Method and Absorption Method. b. Fixed Cost and Variable Cost.

534






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