RE: [TCML] Cap Discharge Questions

["Phil Tuck" <phil@xxxxxxxxxxx>]

Hello Dave,
Thank you for the reply. Yes, I was referring to the individual caps. My old MMC of 216 caps had its bleed resistors twisted with the cap's lead wires, so when I rebuilt the MMC I had to cut the connections away, leaving too short a lead on the old cap for a new bleed resistor. The result is I now have 12 strings of 18 in series with no bleed resistors. I was going to use a resistive stick to discharge, and then keeping the stick in place, apply a link across the MMC to leave on for when not in use.
So I presume (actually  I am hoping) your reply of  "No DC path from the 'inner' caps, round the loop, to equalize." Applies only if whatever was shorting the MMC (HV winding or stick etc.) is removed.
Let's say I have just three hypothetical, fully discharged, caps in series, like this: 

connection 'a' ---  [ CAP 1] ---  connection 'b'  ---  [CAP 2] ---  connection 'c' ---  [CAP 3] ---  connection 'd'    

 I then apply 1000v just across CAP 2 using connection points 'b' & 'c'. Once the charge is removed I then connect, and leave connected, a resistance across all three caps at points a' & 'd' Will not the presence of the resistor and the outer caps provide a path for the middle cap to discharge?   (I have never fully understood the mechanism that allows a cap to regain some of its charge.)

phil

------------------------------------------------------
> What is the actual likely hood of this then. If you had 16 caps in 
> series without bleeders

Dave replied:

   No DC path from the 'inner' caps, round the loop,
   to equalize.
 


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