Results 1 to 5 of 5

Thread: Burst Capacitor

  1. #1
    Join Date
    Jul 2010
    Location
    Brisbane
    Posts
    78

    Default Burst Capacitor

    Hi.
    Was using my Scheer HM30 router the other day when it stopped and started smoking.. also tripped the house fuse !
    On examination I found it was a capacitor that exploded.
    This part goes between the two black power wires than go to the stator.. its a bit hard to read, but it looks like 0.1uF +2x2500 pF..

    btw .. the other little black thingy has one wire to the frame and the other to the earth connection (junction) on the fibre board ??

    What are these things for ?
    ken.
    Attached Images Attached Images

  2. #2
    Join Date
    Nov 2008
    Location
    Sydney
    Posts
    78

    Default

    The ruptured capacitor network is an EMI filter to limit electrical noise being fed back into the mains. The operation of the motor is not dependent on it, the manufacturer has probably included it in the circuit to comply with a particular State or Country Standard. You could disconnect it and throw away if you wish.
    I think the other "little black thingy" is a bleed inductor from frame to ground. It is difficult to read the label due to the light reflection. I would leave it connected.

    Chas.

  3. #3
    Join Date
    Sep 2012
    Location
    North Yorkshire UK
    Posts
    1,933

    Default

    Hi Guys,

    I think you will find that it is a resistor, about 10 ohms, used to reduce earth current surge from the capacitors.
    Best Regards:
    BaronJ.

  4. #4
    Join Date
    Jul 2010
    Location
    Brisbane
    Posts
    78

    Default

    The writing reads...2.5 mH 10% 0.03 ohms.. as mentioned, one wire goes to the frame of the router while the other goes to a link (pic 4).. this link is riveted to the fibre board with no connections to anything else..

  5. #5
    Join Date
    Sep 2012
    Location
    North Yorkshire UK
    Posts
    1,933

    Default

    Quote Originally Posted by kenny_10 View Post
    The writing reads...2.5 mH 10% 0.03 ohms.. as mentioned, one wire goes to the frame of the router while the other goes to a link (pic 4).. this link is riveted to the fibre board with no connections to anything else..

    In that case Chas was right ! It still needs to go back though.
    Best Regards:
    BaronJ.

Similar Threads

  1. Capacitor types
    By kenny_10 in forum ELECTRICALS
    Replies: 2
    Last Post: 29th Jun 2018, 06:06 PM
  2. 3phase on single phase plus a capacitor ?
    By steamingbill in forum METALWORK GENERAL
    Replies: 22
    Last Post: 8th Feb 2015, 10:25 PM
  3. Need help finding a capacitor for my lathe motor
    By xXvapourXx in forum METALWORK GENERAL
    Replies: 42
    Last Post: 29th Oct 2013, 10:34 PM
  4. Replies: 29
    Last Post: 28th Aug 2013, 06:57 PM
  5. Capacitor for CIG Transtig 180 info required.
    By Old Croc in forum WELDING
    Replies: 0
    Last Post: 17th Mar 2013, 01:45 AM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •