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Join Date: Jul 2011
Posts: 13

How Does DC Current Exciters Create Magnetic Poles on the Rotor in Synchronous

07/22/2011 5:34 AM

how ???

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Active Contributor

Join Date: Jul 2011
Posts: 13
#1

Re: how does dc current exciters create magnetic poles on the rotor in synchronous

07/22/2011 5:37 AM

srry gys i wanted to ask about synchronous motor and synchronous generator

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Anonymous Poster #1
#2

Re: How Does DC Current Exciters Create Magnetic Poles on the Rotor in Synchronous

07/22/2011 11:04 AM

With all due respect.

You seemed to have passed the Electrical Engineering graduate (or undergraduate as it is called some places)

That is obvious from the fact that you are appearing in ABB interview.

Are you sure that you are supposed to ask this question?

Go through your books fro the dedicated to page to the last (alphabetical) index once at least. As it does not really looks as if you have done.

Seems harsh? may be, but your questions, the set of, really makes me recommend it.

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Active Contributor

Join Date: Jul 2011
Posts: 13
#3
In reply to #2

Re: How Does DC Current Exciters Create Magnetic Poles on the Rotor in Synchronous

07/22/2011 11:11 AM

i havent got this answer in any of the testbooks i have reffered so plz mr anynomous i would be really glad if u culd put forward an answer and share a little bit of your oceanic electrical knowledge hehe

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Anonymous Poster #1
#4
In reply to #3

Re: How Does DC Current Exciters Create Magnetic Poles on the Rotor in Synchronous

07/23/2011 9:00 AM

oceanic electrical

May be for someone, but I still feel I am trying to swim at the edge of a shallow pond, and that too a small one.

I don't know what are the books that are in vogue now, but in our undergraduate days, we had the recommended text books

MG Say (AC machines)

Clayton (DC machines)

Parker (If I remember for FHP machines and special - 1Φ, Perm magnet et al)

then of course we went to FKK and all others for universal machines Z transform etc and later in the 5th year (it was 5 years then so you now know the prehistoric men we are)

As far your question is concerned this one at least, is explained in any DC machine book, and I am sure the one I referred. Though I am not sure I have the copy (though I would like to have it) and hence I can not tell the page and the chapter. Of course I do have the course notes still, but that page number won't suffice will it? sometime I am scared to open those, suddenly the papers may turn to dust.

I still remember the concepts since I have studied them. Quite a few of the members are like me too. Please note Studied and not practiced. Since I am totally off the electrical field now and is in as much mechanical field as possible. The OEM product that I am currently heading, has the prime mover (motor) and the instrumentations that only have electric field applied across them (and both of them are not exactly in our manufacturing scope, the first being bought out and the second items, fitted)

1. My recommendation stands.

2. I for one don't believe in spoon feeding (and that habit I extend to my newly joined colleagues as well as to my children). In fact when I take training classes, one I had just a couple of days back in SQC and OR (oh sorry Statistical Quality control and Operations research in case) My slides give a statement and ask why. (eg visual tools are generally used before application of rigorous statistical analysis Why?)

3. To get a job, may not be that difficult, but tomorrow you have to retain it and grow with it. for that the web or CR4 won't help you much. After all you can not tell your boss that OK, let me ask it on an online blog and hopefully in a few days I will answer your query.

Should I or Shoudn't I OT?

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