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    replacing 3 phase motor

    Check the amount of poles the motor has. If the old motor was a 1.5kw 2 pole motor and you've installed a single phase 1.5kw 4 pole motor then you've got a major speed difference. Check the old plate and get a single phase motor to match.
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    HNC Electrical/Electronic engineering

    I'm going into my second year of the course and during the first year I found that Electrical machines, drives and power systems by Theodore Wilde had everything in it. Also used Electrical and Electronic Principles by John Bird hes a bit mad in the way he describes things but it helps give an...
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    Latest version of 17th Edition

    More hoping someone has a spare copy of it after being given one by a wholesaler for buying loads of products. I have the green one, but its now worthless for the course. Ill stick in on eBay and use the funds from it to part fund the purchase of the yellow version.
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    Latest version of 17th Edition

    Hi guys, long time viewer of the forum, too shy to post. I'm going into my 3rd year of college HNC and Ive been advised to do the 17th Edition as well, so I'm on here wondering if anyone has a spare copy or a copy of the 17th Edition they no longer need. I'm not looking a handout by any means...
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    IGBT and MOSFET

    thanks thats great and very detailed. Im studying motor speed control and the different ways to achieve it, and also the construction of motor drives. Im studying my HNC in electrical and electronic engineering so have a lot more to learn.
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    IGBT and MOSFET

    Anyone able to tell me how these control the speed of a DC motor? Are they a faster way of switching thyristors? Do they store certain amounts of voltage and only allow through what you want it to? Been at this question for the last couple of days now and cant seem to find an explanation on...
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    Another useful PDF (Motors)

    anyone got a log in for ecollege? or is there another way of viewing it?
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    need a bit of help to make sure what im doing is right

    got it figured out, I didnt multiply it out properly. I have 360I2 = 24-200(0.0067) it should equal 25.34 and not 22.36 doh!!
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    need a bit of help to make sure what im doing is right

    hopefully this looks a bit better lol never realized it was side on view.
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    need a bit of help to make sure what im doing is right

    been having a go at this question for my assignment and not sure if its correct or not. Asked the tutor and it took him too long to work it out that class finished and its to be handed in next tuesday so need a brainiac on here to see where Im going wrong.
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    What are you doing as trainees?

    learning to wind motors, in northern ireland. Been at it for two months now after training to look after sewage stations.
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    Pumping stations and there warning lights.

    Ive got the controller instructions but Im a bit dubious of tampering with the parameters without knowing whats going on everything else in the station is easy enough and Ive picked that up failry quick in the last 2 months but these darn controllers are something I havent had any experience...
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    Pumping stations and there warning lights.

    Yea the level controls functioning correctly as they have been upgraded in the last few years from the float type system to a (i Think) sonar system and it all works as it should. Pump comes on once it hits 7.5m then goes off at 3.7m, if level reaches 8.5m then both pumps come on and the warning...
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    Pumping stations and there warning lights.

    Need some advice on sewage pumping stations, our company has recently started to look after them as they were neglected for years so we are flying by the seat of our pants at the minute. We have status dm3420 controllers on the panel and they are set up according to the depth of each wet well...
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    Have i wasted my time? Bolton/Manchester

    Dont be losing hope, Im 32 and only going in to my 2nd year of my HNC in engineering. I started off by working for free and done this for a few months until a different company offered me work. He was impressed that I was getting up everyday and going to work for free just to gain experience...
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    Anyone working on generators or motors in quarrys?? Starting new job need advice

    I dont mind being cold and mucky and ill be keeping quiet and defo wont be annoying the old boys working there. Thanks again everyone for the help.
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    Anyone working on generators or motors in quarrys?? Starting new job need advice

    Pmd You back, got registered on there and all.
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    Anyone working on generators or motors in quarrys?? Starting new job need advice

    Hes taking pity on me because im currently working for a guy and not being paid or trained properly. Ive been going to jobs and doing them on my own and not receiving any advice or guidance. The one week trial is to see if I can hack it as he said he would know within a few days whether or not I...
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    Anyone working on generators or motors in quarrys?? Starting new job need advice

    I know the basics of how it all works im doing my HNC in electrical and mechanical engineering at the minute so that was part of the assignments. I get what an apprentice is but because the company have went through so many apprentices I want to be kept and to stand out abit more. I dont want to...
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    Anyone working on generators or motors in quarrys?? Starting new job need advice

    I just dont know what to expect when working on generators and motors out there. What instruments do you use? What kind of problems do you face? Is there any books worth reading to give me a general idea of whats going on? Im just nervous about it as Ive never been out working at large...

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