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Replacement Capacitor

Discussion in 'General Electronics Discussion' started by Marktw, May 22, 2013.

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  1. Marktw

    Marktw

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    May 22, 2013
  2. (*steve*)

    (*steve*) ¡sǝpodᴉʇuɐ ǝɥʇ ɹɐǝɥd Moderator

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    It's a 2uF non-polarised 200VAC (so 280VDC) capacitor.

    You will find that a replacement will look nothing like this.

    A common technique is to open the old capacitor, clean out the innards and mount the new capacitor inside the old case. That way everything still looks like the original part.

    This might be suitable.
     
  3. Marktw

    Marktw

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    May 22, 2013
    Thank you very much Steve, can I check if this is dead with a meter?
     
  4. CDRIVE

    CDRIVE Hauling 10' pipe on a Trek Shift3

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    Actually that style cap is still made. You'll find them on any SPH Cap-Start or Cap-Run motor. They can be purchased at any electrical supply house. WW. Granger and McMaster Carr are two on line sources but local sources are common.

    Chris
     
  5. (*steve*)

    (*steve*) ¡sǝpodᴉʇuɐ ǝɥʇ ɹɐǝɥd Moderator

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    Jan 21, 2010
    On a high ohms range the capacitor should read as 0L. Because this is a relatively large value capacitor, the meter might read some (increasing) value for a short while before settling on 0L.

    If it settles on an actual resistance, the capacitor might be bad,

    Another test is for capacitance, and *some* multimeters can test for this, Anything between 1.5 and 2.5uF would be expected.

    Unfortunately a multimeter is not capable of testing many other properties of the capacitor. It could be failing in ways other than you can test.

    Having re-read the last word of your original message, it's probably not so important to have something that "looks right", and this component may be operating under conditions which require something more physically rugged.

    Have you contacted the original manufacturer? even though the product is likely obsolete, the still may be able to help (these sort of things have a long life)
     
  6. CDRIVE

    CDRIVE Hauling 10' pipe on a Trek Shift3

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