Rectifier Megger Value
Rectifier Megger Value
(OP)
Hello guys, I'm new here and I will go straight to my problem regarding a rectifier 750DC for 3rd rail traction power for passenger trains. recently i got this new megger unit and tried to test our rectifier unit, and I'm a bit confuse why straight away i got this zero Mega omhs reading and after a minute will slowly have a low value and after 3 or 5 minutes it continues to increase, but when i use my analog type i will got a low value of 0.5Mega omh, thanks for your tips and help.





RE: Rectifier Megger Value
RE: Rectifier Megger Value
RE: Rectifier Megger Value
As a more general comment, I would generally try to avoid using a megger on the output of a semiconductor rectfier or a drive because the readings are usually misleading and it is fairly easy to damage semiconductors.
RE: Rectifier Megger Value
Gunnar Englund
www.gke.org
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