From: charlie@xxx.net   
      
   On Tue, 09 Aug 2022 10:11:27 -0400, legg  wrote as   
   underneath :   
      
   >On Tue, 09 Aug 2022 07:37:07 +0100, Charlie+  wrote:   
   >   
   >>On Mon, 08 Aug 2022 18:15:55 -0400, legg  wrote as   
   >>underneath :   
   >>   
   >>>On Mon, 08 Aug 2022 20:10:56 +0100, Charlie+  wrote:   
   >>>   
   >>>>On Mon, 08 Aug 2022 07:49:06 +0100, Charlie+  wrote as   
   >>>>underneath :   
   >>>>   
   >>>>>Advice please..   
   >>>>>This is a 250V 1450W Circular saw US made in the 1980s probably.   
   >>>>>AEG CS825, It failed in use yesterday blowing fuses having been stored   
   >>>>>in a garage.  Dismantle reveals a leaking swelled combined (film)   
   >>>>>capacitor 0.3uF + 2x 2500pF XY type 250V~ with 3 leads one coloured and   
   >>>>>2 black.  Too old for spare parts.   
   >>>>>Presumably I can replace with X rated 250v or better individual caps but   
   >>>>>I dont know enough!   
   >>>>>Is the 0.3 for starting and the small two for anti interferance perhaps?   
   >>>>>TIA C+   
   >>>>   
   >>>>Actually it is a brushed (universal type) motor so it wont be for   
   >>>>starting. It will all 3 capacitors be for limiting interferance but I   
   >>>>dont know what the circuit would be. C+   
   >>>   
   >>>These are for line filtering - They are only really effective if the   
   >>>line power enters and leaves the cap body on separate wires, so their   
   >>>replacements' location anywhere near the line power exit should be   
   >>>just as effective.   
   >>>   
   >>>Use an X-rated part across the line, and Y-rated parts to the grounded   
   >>>equipment metal body, from each line terminal. Capacitance equal to or   
   >>>less than double the listed values.   
   >>   
   >> RL - Thanks for the info, now I'll be able to re-create the circuit   
   >>(the original cap. failed short circuit), though in this case the earth   
   >>wire disappears into the motor but that is not external chassis   
   >>connected, presumably because double insulated. Thanks, C+   
   >   
   >If you can find any electrical contact to the disappearing third   
   > )ground) wire, then that's the connection needed. Probably on the   
   >body of the motor.   
   >   
   RL  No there was no external continuity for the disappearing (earth) and   
   any other point easily available - so I have just crimped to the old   
   wire and called it a day.. all working fine now so job jobbed using up   
   suitable X2 and Y caps from old equipment power supplies.  Thanks for   
   your help. C+   
      
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