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Thread: Electric Motor Question

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  1. #1
    Master Plumber Dunbar Plumbing's Avatar
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    Default Electric Motor Question

    I have a motor, actually 8 of them that came from Italy. The writing isn't exactly what I know/understand but there are some specifics I can give that are clear.


    The motor is wired for 220 1 phase. The cord prongs dictate 220 setup. This motor has a capacitor on the top concealed inside. Here's a link to the product I'm dealing with:

    http://www.simmm.com/flash/documents/B1121D.swf


    The questions I have,


    Can I convert to 110volt, IF I can't, can I use a converter or do they make one that will work off 110 and send juice to this motor without damaging it?

    My electrical source to these is mainly going to be fed from power outlets at large functions......and if I bought a welder-generator if that would support 220 feeds.

    I can take the top off of this and show the wiring into the motor but there are no tabs for me to switch to 110 lugs. << This makes me sad as this is an unexpected discovery on this recent purchase.


    Anyone with this expertise, I'd appreciate it.
    Read what the end of this sentence means.

  2. #2
    Plumber jimbo's Avatar
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    Default

    I think you biggest issue is that quite possibly this is a 50 hz motor, and you should not run that on 60 hz.

    By the time you get a step up transformer big enough to handle the watts of this guy, you could just by a US made pump. And by the time you buy a frequency converter, you could have bought a new truck! http://www.hzfrequencyconverter.com/
    Last edited by jimbo; 10-24-2007 at 06:33 AM.

  3. #3
    Aspiring Old Fart, EE, computer & networking geek Mikey's Avatar
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    Default

    You might be able to replace the motors on the pumps somehow, since there are 110V models listed. What with shipping & hassle, dunno if it'd be economical.

  4. #4
    Like an engineer alternety's Avatar
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    Default

    I know you have probably done this but have you checked out the nameplates for the numbers 50 or 60?

  5. #5

    Default

    Italy's electrical standard is 127/220 volts, 50Hz.
    Just my 2 worth.

  6. #6
    Master Plumber Dunbar Plumbing's Avatar
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    Post Sorry for the delay

    But with work and getting answers from all the forums I posted, in relation to taking the motor to an electric motor service company and dealing directly with the mfg of the units, I got some answers.


    Definitely the questions and responses put me in the right direction to figure out what needed to be done.


    Before the electric motor service took the pumps apart, I was told that all I needed was a transformer that does the conversion and gives me the ability to convert to 110 like Jimbo showed in the link.

    I bought 2 transformers and they have a good deal of leads to connect.


    If anything sounds incorrect or out of line, please chime in.

    $55 for the unit and I'll have to do some plastic box setup to mount to these units and make them safe.

    I'll now be able to run a 220V motor through a conversion of 110 without materially affecting the longevity of the motor.


    In regards to the 50HZ over standard domestic 60HZ,


    I was told that the transformer will aid in this situation but not cure it.

    They said that running that motor even if it didn't go through the transformer first that the motor through normal use would last for example,

    9-3/4 years as opposed to 10 years on the given rule of thumb.

    What might be a possibility is that I might have to do this to as much as 30 motors. I'm not complaining as I'm picking these up for a below cost price.

    I'll follow up with this and results after I spend some more time with it.

    I have a Ace Hardware that just opened up the street and the way they stocked their shelves.....I should be able to get what I need set up this weekend if my phone doesn't ring to work....
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