Guru
Joined: 21/06/2018
Location: AustraliaPosts: 1206
| Posted: 02:28am 21 Jul 2024 |
Great reading of your background thanks for the information. While most of us have been looking for a source of dead inverters, it sounds like you have an ongoing stream of them in your own back yard, talk about lucky lol.
I am surprised about the number of inverters that have been killed in your installation from just being in a similar environment to a lot of us. Yet either others don't volunteer the information or hopefully they have been having better luck than you. What do you think is different about your install that sounds like the panels are arranged in a target formation (sorry to sound flippant) but there must be something peculiar to your location/install ? I am thinking high up and very exposed.
I understand perfectly well that lightning activity and semiconductors direct connections to mains wiring (otherwise known as trans-former-less GTI's usually with a TL somewhere in the model number) are bad news. I would have thought that a toroidal transformer type inverter would survive much better given your experience. Dont get me wrong if there is a direct hit to your mains supply all bets are off as to whether anything survives.
Are there serious overvoltage surge arrestors installed on the mains side ? Are the runs from the cables to the inverters overly long ? I look forward to some further insight.
I think that's enough questions to a two finger typist (edit I actually was using one finger when I started ~ 1985) a smarty walking past said "cant you use two fingers" my immediate two finger rude hand gesture showed him I sure could.
Edited 2024-07-21 12:33 by wiseguy