Constant Voltage Transformer Capacitor failing
Constant Voltage Transformer Capacitor failing
(OP)
Hi
On the site i am working on we have 2 CVTs. The problem is the capacitor bank, first at the one end of the bank and now at the other end, is that the bridge pieces are failing. This has caused a breakdown of the respective capacitor. The bridge pieces are discolouring, but what is strange, it only seems to be on the end of the capacitor banks. I am trying to look up what the problem can be but i am hitting a wall. Would you guys have any idea where the problem could lie.
Any suggestions or explanations would be greatly appreciated.
On the site i am working on we have 2 CVTs. The problem is the capacitor bank, first at the one end of the bank and now at the other end, is that the bridge pieces are failing. This has caused a breakdown of the respective capacitor. The bridge pieces are discolouring, but what is strange, it only seems to be on the end of the capacitor banks. I am trying to look up what the problem can be but i am hitting a wall. Would you guys have any idea where the problem could lie.
Any suggestions or explanations would be greatly appreciated.






RE: Constant Voltage Transformer Capacitor failing
RE: Constant Voltage Transformer Capacitor failing
RE: Constant Voltage Transformer Capacitor failing
This is probably not because of high current (CVTs are current limited, anyhow) but improper cooling. Find the manual for the unit and make sure that mounting is in accordance.
A very common mistake is to mount two units too close to each other. Or that someone has put paper or something else on top of them.
Gunnar Englund
www.gke.org
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Half full - Half empty? I don't mind. It's what in it that counts.
RE: Constant Voltage Transformer Capacitor failing
As a side note I tried to determine the temperature at which copper discolors and was surprised that there is very little definitive info out there except for this thread on Eng-Tips...thread330-194516: Copper color transition temperature. So the non-contact thermometer is your best bet to see how hot the crimps are getting, or simply recrimp them and flow some solder into them.