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ABB Electrical Engineering Interview Questions

where AVR is connected in power plant.

6964

what are the parameters plays a major role in Potential transformer Burden calculation??

959

What is the meaning of high reputuring in HRC fuse.?

3434

where rlc series ckt used?

1035

Why transformer ratings in KVA not in KW?

5990

what is the difference between arc and spark

5120

What is the differentional relay...what is the work of this in power Tx. how it is works..

785

what is the safety of ACB & VCB and how can this work and how can the service the ACB & VCB parts name with picture

67088

what is ten delta ?

3184

how to calculate the step resistance for slipring induction motor,how you deside the no of step for that?

1011

what mean by analog ,digital,numerical meters and relays? say the example?

917

Hello friends., my question is related to testing of current transformer... A Ct having knee point voltage of 750 volts., and I have two step up transformer's of rating 230 v to 440 volts., can I obtain the value of 750 volts by using the two transformer's.... If yes then how could I connect the transformer's to obtain knee point voltage?? thank you in advance

3080

I have 90KW Motor 60 Hz,380V Pf 0,88. after testing the Motor without Load is the no load Current 36 A,but wenn i put load after 2 hours the current increase more than 156 A. Can anybode tell me waht is the Problem?

4308

Hello friends, Can anyone explain the concept of zones in Bus bar protection and how can we differentiate the main zone and check zone in Bus bar protection

6737

Difference between earthing & grounding.?

3398

how many notations are posible(cordinolity)are there in between two tables(one is fact and another is dimension)pls give me a example pls.

849

How can Philodendron plants live with only halogen lighting?

1255

Why are local variables stored in stack?

13

hi, this is harish. i had finsihed cognos course recently.can some one help in the area of project explination, interview questions,real time scenarious....this is my maild id nanagupta907@gmail.com

818

How will you prevent a set of users from accessing a specific field?

1

What you know about ISO 9001? What is quality management system? Weather QMS is suitable,adequate and effective or not? Is there any Quality Policy? Is there any Quality Objectieve? If yes, then what are they. How they are planning to achieve Quality objectives? Weather they are measuring quality objectives?

1266

If there is no problem with the electronic circuit and regulator then why the motor start rotating at low value of regulator with full speed both at laod and no load??? and if my judgement of circuit is wrong then what is your openion?

934

How to check vortex flow meter is in good condition while we do not having calibration setup?

5469

what do you mean by Firm

389

when you connect to DBM manager so which database is connect?

1606

I would like to get the formula How can i calculate the productivity of a mason in terms of brick laying and plaster. i have 6000 Sqmt of interlock laying work i want to calculate - how many masons required to do the job - in how many days can it be done - what will be the production rate in 8 hours shift/ per mason if i can get some excell sheet , it will really help me in my calculations

368

we have registered to MCCIA(Maratta Chember of Commerce Ind & Agri.).They given a Tax Invoice against this registration with charging service tax@10.3%.can we take credit of this service charge ?

1034

Is a coconut a nut, seed or something else?

12042

what is earthing transformer? draw the winding dia.of earthing transformer.

619

How to choose the vector group for the step up and step down transformers??? Tell me the which vector group is suitable for step up and step down transformers and whats the reason to choose and whats the benefits???

1146