[TCML] Could this be a breakout point?
Sfxneon at aol.com
Sfxneon at aol.com
Sun Sep 7 11:10:44 MDT 2008
>From my recent experience with my new torroid, it largely depends on the
height of the torroid above the connection. Yours looks close enough to shield
the connection point and prevent breakout, but if it does there are some
changes you could make to improve on your connection.
Just imagine that the path that the current takes is like a race track, and
you don't want to be slowed down by a lot of sharp curves and dead ends.
Avoid sharp turns and sharp edges with the wire and all hardware. It's a good
idea to space wind the last few turns so that there is some space between the
end of the coil wire and the turn below it. That way you will have room to
affix a terminal of some kind without having to make a right angle turn with the
coil wire. Also avoid using anything that sticks out, like the nut and bolt
you are using.
I made my connection by taking a piece of copper strap about an inch wide
and 4" long and trimming one end down to a 1/4" wide tab that will accept an
automotive type push-on connector. I drilled a few small holes in the copper
strap (for a better bite on the coil form when epoxied), rounded all corners,
curved it to fit the coil form and glued it in place, all before the coil was
wound. Then the top windings were space wound, bringing the last turn
straight into the end of the strap. The wire was left long enough to stretch it
tightly over the strap and solder it in place, then trimming off the excess and
filing it smooth. I made the bottom termination the same way, but drilled a
1/4" hole in the strap to attach the grounding wire with a nut and bolt, since
there's practically no potential to ground at that point.
In a message dated 9/7/2008 11:08:58 A.M. Central Daylight Time,
shobley at userfs.com writes:
I made some changes to the secondary today - creating a connection
terminal for the toroid.
But does this look like it might be creating an unwanted breakout point?
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