I am kinda lost on this Rick. A megger measures resistance from winding to winding or winding to ground. A megger is pretty much useless for measuring winding resistance. If you do get a megger, be careful. Some are only good for 500 volts. That's not enough if your doing HV trannys and chokes. Yes, I would recommend a HY-POT tester that's good for 5KV. A rule of thumb is to Hy-Pot at twice the rated voltage plus 1000. There are also test equipment out there that measure resistance while using a Hy-Pot. This test is called a P.I.E test( Polarization Index Test ). It measures the insulation resistance at certain time intervals and you calculate if the insulation is good, fair or bad. I do this when rewinding transformers. Regards, Gary...WZ1M ----- Original Message ----- From: "Rick Brashear" <[EMAIL PROTECTED]> To: <AMRadio@mailman.qth.net> Sent: Tuesday, February 13, 2007 2:11 PM Subject: [AMRadio] Insulation Resistance
> List: > A buddy pointed out a fact I had not considered. When I get a megger I > will need to know what the resistance or approximate resistance of the > wire/insulation of the transformer or choke should be. If not, I won't > know any more than I do. Is there a rule of thumb that can be applied here? > > Thanks for any and all advice. > Rick/K5IZ > > ______________________________________________________________ > AMRadio mailing list > List Home: http://mailman.qth.net/mailman/listinfo/amradio > Partner Website: http://www.amfone.net > Help: http://mailman.qth.net/mmfaq.html > Post: mailto:AMRadio@mailman.qth.net > To unsubscribe, send an email to [EMAIL PROTECTED] with > the word unsubscribe in the message body. > > > > -- > No virus found in this incoming message. > Checked by AVG Free Edition. > Version: 7.1.411 / Virus Database: 268.17.37/682 - Release Date: 2/12/2007 > > ______________________________________________________________ AMRadio mailing list List Home: http://mailman.qth.net/mailman/listinfo/amradio Partner Website: http://www.amfone.net Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body.
