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| Date: | Fri, 18 Jun 2010 10:25:48 -0500 |
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The specification paragraph with the subtitle of "High Temperature" states "The transformer temperature requirement is 18°c (185°F) for 4 hours and 75°C (167°F) for 20 hours." The wire sizes are 33 AWG and 38 AWG wire. I do not think this temperature requirement is a not a real high temperature but I could be wrong. Just need studied transformer to this detail. Thanks for the response will appreciate any others. Jon
-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Ken Bloomquist
Sent: Friday, June 18, 2010 9:47 AM
To: [log in to unmask]
Subject: Re: [TN] REMOVING VARNISH ON TRANSFORMER
There are lots of different finishes for magnetic wire. You may have gotten
a high temp finish instead of what you are use to. Abrasion or high temp
solder are the best ways to remove it.
KennyB
-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Roberts, Jon (SA-1)
Sent: Friday, June 18, 2010 7:50 AM
To: [log in to unmask]
Subject: [TN] REMOVING VARNISH ON TRANSFORMER
Have a issue with a very small transformer that the varnish is near to
impossible to remove from the end of the wire. In the past we did not
have a problem and yes we are going to contract the manufacture but they
are closed on Fridays.
The specification for the wire to be used is RM5P-CB1-6 and I have been
unable to find it searching the internet. Some transformer the varnish
did come off with heat from a soldering iron but several were not
affected by heat. Scrapping is not what I prefer and even when the
operator tried that it was difficult to almost impossible to remove.
Question: could it be the incorrect wire used or a defect in the
varnish applied or that process to apply the varnish? Just picking your
brains on a Friday, Thanks for any suggestion and I will let you know
next week what we find out from the manufacture of the transformer. Jon
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