Is there any
> way with minimal equipment to see if an MOV is still good? The relay
> coils all appear OK, so I guess they did their job.
If you put dc on them, with a series resistor to limit the current to about 1 ma
you will see the breakdown voltage.
I have done this many times, and used MOVs on rotor control lines, and tested a
Polyphaser rotor protector which is just MOVs across the lines and know this
If you find zero volts or no current flowing you know you have a blown MOV.
You can get huge rated MOVs from Mouser for 30-50 cents each.
Here is a sample of an approximately 30 volt MOV. Mouser part #576-V39ZA20P.
This will get you to the right page on the Mouser site.
Insert movie times and more without leaving Hotmail®.
TowerTalk mailing list