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Looking for an electrical engineer in Dublin...

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  • 07-08-2014 11:18pm
    #1
    Reesy
    Registered Users Posts: 716 ✭✭✭


    Anybody on here know an electrical engineer in the Dublin area? I think that's what I need.

    We beekeepers use motorised honey extractors (like this http://www.parkbeekeeping.com/products/detail/9-frame-radial-honey-extractor1) to spin out the honey from the frames.

    My friend's ancient motorised honey extractor (that I borrow each year) has died - it seems to be the motor at fault. There is current going to it, but the 240v, 0.25HP motor ain't turning. Need to get it fixed pronto because the extracting season is almost upon us.

    Any recommendations for someone who can work magic with old electrics? South Dublin would be ideal, buut will travel if needs be. We will deliver & collect - no need for call-out.

    Thanks
    Tagged:


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    #2
    gctest50
    Registered Users Posts: 9,605 ✭✭✭gctest50


    motor rewind people be any good ?

    http://www.apexrewinds.com/

    http://www.mpar.ie/

    http://www.goldenpages.ie/electric-motor-repair/dublin-county/


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    #3
    Reesy
    Registered Users Posts: 716 ✭✭✭Reesy


    gctest50 wrote: »
    motor rewind people be any good ?

    Thanks! I'd never heard of that profession.

    Any you'd recommend, among them? If not I'll just call a few & talk thru my problem in the morning.


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    #4
    Sir Arthur Daley
    Closed Accounts Posts: 6,720 ✭✭✭Sir Arthur Daley


    How have you confirmed power at the motor Op?


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    #5
    Reesy
    Registered Users Posts: 716 ✭✭✭Reesy


    Sir Arthur Daley wrote: »
    How have you confirmed power at the motor Op?

    Hi Sir Arthur, yes, as far as I can. There is power to the on/off switch (it lights up when switched on). Also, I opened the box that houses the on/off switch and the speed control, and got a light on the circuit tester screwdriver from the blue & brown wires leading to the motor. Didn't want to open the motor itself to verify fully.

    Apparently when it was tested yesterday it worked twice, very briefly, and not since. The motor looks like it's 40 years old.


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    #6
    Sir Arthur Daley
    Closed Accounts Posts: 6,720 ✭✭✭Sir Arthur Daley


    A phase tester isn't terribly accurate but never the less. If you have the motor off the best bet now is to go to a motors rewind specialist. They will either repair or source you a new one. Even after 40 years it may be an easy fix you never know.


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    #7
    adrian92
    Registered Users Posts: 566 ✭✭✭adrian92


    With power off. Rotate motor rotor/shaft. See if works. If not, with power on try the same procedure ( be very careful use gloves gentle contact do do grip rotor). Just an off chance but may work.


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    #8
    brightspark
    Registered Users Posts: 2,637 ✭✭✭brightspark


    Reesy wrote: »
    Hi Sir Arthur, yes, as far as I can. There is power to the on/off switch (it lights up when switched on). Also, I opened the box that houses the on/off switch and the speed control, and got a light on the circuit tester screwdriver from the blue & brown wires leading to the motor. Didn't want to open the motor itself to verify fully.

    Apparently when it was tested yesterday it worked twice, very briefly, and not since. The motor looks like it's 40 years old.

    Just read this, as others have said the testers are unreliable, but are you sure the light on the screwdriver is on for both wires?

    If it is look for a break in your neutral, loose connections etc.


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    #9
    Bruthal
    Closed Accounts Posts: 13,422 ✭✭✭✭Bruthal


    If phase tester is lighting on a neutral connection within the machine, then open circuit neutral before the test point is likely.


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    #10
    Reesy
    Registered Users Posts: 716 ✭✭✭Reesy


    adrian92 wrote: »
    With power off. Rotate motor rotor/shaft. See if works. If not, with power on try the same procedure ( be very careful use gloves gentle contact do do grip rotor). Just an off chance but may work.
    Hi Adrian, I'd tried that or something close. The yokeybob to which the motor is attached rotates by hand the same whether the power is on or not.
    Bruthal wrote: »
    If phase tester is lighting on a neutral connection within the machine, then open circuit neutral before the test point is likely.

    The light on the phase tester did come on for both - one much brighter than t'other.

    My buddy took the motor to Sisks this morning, they said €65 to fix the motor & would need a new controller but they can't help with that. As you say, it might be the controller that's banjaxed. I've been looking at controllers on & found these kind of things:

    a) http://www.amazon.co.uk/RHX-Adjustable-Voltage-Regulator-50V-220V/dp/B00GJN09H6/ref=pd_cp_diy_0

    b) http://www.amazon.co.uk/Ceiling-Speed-Control-Button-Switch/dp/B00H55MEFW/ref=sr_1_1?m=A50DZI580G3JX&s=merchant-items&ie=UTF8&qid=1407762340&sr=1-1&keywords=Speed+control+220v

    To be honest I'm out of my depth here - can anyone recommend someone who can look at the motor & controller & figure out what's wrong?


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    #11
    brightspark
    Registered Users Posts: 2,637 ✭✭✭brightspark


    Can you post some pics of the controller, motor and where you tested?


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