Forums
New posts
Search forums
What's new
New posts
New media
New media comments
Latest activity
Media
New media
New comments
Search media
Members
Current visitors
Log in
Register
What's new
Search
Search
Search titles only
By:
New posts
Search forums
Menu
Log in
Register
Install the app
Install
Green Renewable Energy Forum
Solar PV Forum
Rising then decreasing pv output power cycles
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Reply to thread
Help Support Talk Electrician Forum:
This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.
Message
<blockquote data-quote="Solar mark" data-source="post: 468071" data-attributes="member: 30464"><p>Just picked up the last feedback, thanks for that.</p><p></p><p>i must admit when I got the call letting me know their was a problem, I was a bit cynical there was a problem as I had told him the advantage of having a monitoring device when his inverter is tucked away I the lift, in order to at least see everything is working ok.</p><p></p><p>Anyway when I went round after finishing that days work it was about 5pm and the PV System is east facing and the irradiance level from the sun was going down as when I checke it was only about 200 wm and when I checked the inverter and the input from the panels the voltage was so steady, but I must admit I didn’t check the current and I could have swooped the strings over to see if the fault followed the string arrangement.</p><p></p><p>The only thing was it wasn’t a planned visit and I had another one to go to.</p><p></p><p>As far as the MC4 connections go, we were really careful pushing the mc4’s back together when we found the faulty connection, as we had the meter connected each time we re-connected each cable to check the connections we’re good, as you said just because you push the connectors in doesn’t mean you’ve got a good connection. Plus the Canadian Sokar MC4 convectors didnt make a clicking sound or feeling when you pushed them together.</p><p></p><p>So I’ll call round tomorrow if the clients in and swop the strings over and spend a bit more time with my ammeter and see how we get on with it TTFN</p></blockquote><p></p>
[QUOTE="Solar mark, post: 468071, member: 30464"] Just picked up the last feedback, thanks for that. i must admit when I got the call letting me know their was a problem, I was a bit cynical there was a problem as I had told him the advantage of having a monitoring device when his inverter is tucked away I the lift, in order to at least see everything is working ok. Anyway when I went round after finishing that days work it was about 5pm and the PV System is east facing and the irradiance level from the sun was going down as when I checke it was only about 200 wm and when I checked the inverter and the input from the panels the voltage was so steady, but I must admit I didn’t check the current and I could have swooped the strings over to see if the fault followed the string arrangement. The only thing was it wasn’t a planned visit and I had another one to go to. As far as the MC4 connections go, we were really careful pushing the mc4’s back together when we found the faulty connection, as we had the meter connected each time we re-connected each cable to check the connections we’re good, as you said just because you push the connectors in doesn’t mean you’ve got a good connection. Plus the Canadian Sokar MC4 convectors didnt make a clicking sound or feeling when you pushed them together. So I’ll call round tomorrow if the clients in and swop the strings over and spend a bit more time with my ammeter and see how we get on with it TTFN [/QUOTE]
Insert quotes…
Verification
Post reply
Green Renewable Energy Forum
Solar PV Forum
Rising then decreasing pv output power cycles
Top