Power One Problems

[Gavin A]

I dread to ask, but what the hell is all this stuff about mission statements?

also I saw something about quarantine the other day as well.

I think Napit must just shrug and decide to ignore half the rubbish that MCS come up with or something.

 

[SRE]

I definitely think we need to move to Napit, our re-scheduled inspection is due on 10th Feb and I'm dreading it. Unfortunately I'm not very good at keeping my mouth shut, you'd think I'd learn but the older I get the more it opens, particularly when you get a box ticker like we had who couldn't understand that 2 paragraphs of meangingful text was much better than 2 pages of meangingless garbage.

 

[Worcester]

Part of our QMS (MCS 001 Appendix A item 11) we have a 'quarantine' area for non compliant / faulty / to be returned goods so that they aren't used inadvertently .. Mission statement.. Don't know where that one came from thought that was an NICEIC one

 

[Worcester]

P.s. The quarantine area is a painted square 1m x 1m in the corner of the warehouse floor labelled up as such

 

[Gavin A]

ah right, yeah I did get asked about that, just said it was in the warehouse, maybe we should have a single designated area for faulty kit though.

 

[solarsavings]

I had to go away on sunday evening to redo my acs and my system, 3.6 outd tripped the rcd sunday afternoon, low riso. I had to turn it off and will have a look at it tomorrow.

 

[Worcester]

As most people are finding as systems approach a few years old and the wettest January for 100 years, MC4's that haven't been fully tightened and salt, water and wind finally creep in and cause earth leakages...

Seeing as some of the installers that take pride and care are also experiencing this, I hate to think how many of the throw 'em on the roof brigades' systems are going to cause problems - maybe a pre-owned easy-dec may be a good purchase for all the maintenance we can pick up...

 

[whinmoor]

Have we had any reports of this happening with brands other than Power One?

Maybe there's a case for Chinese junk after all! That's probably what cowboys fit to maximise profit. Notice that inverter from "Jevban" on the main forum. That's a "SAJ" - Sanjing - from China. Possibly from Solar Trade Sales.

 

[SRE]

We're just buying some diy type scaffold, we don't intend to use it much, easy to store, doesn't break the bank and is only being used by us. Seems to make sense at the minute.

 

[SolarCity]

We've had it with an SMA inverter down in Cornwall. Not been down to see it yet but I'm convinced it will be a connector taking in water.

 

[solarsavings]

I've been checking my system this morning and couldn't find any problems but it is dry here at the moment so I'm not really surprised.

 

[BruceB]

Relevant to this thread, Power One sent an email to no doubt many this morning saying they had published this:
Winter storms trigger low insulation resistance (RISO) issues | Power-One

 

[Energetic]

Not Sure this is relevant but we were called out to a system installed in 2011 by a company no longer with us, they had an SMA inverter showing DC earth leakage faults and either shutting down or tripping the RCD at the head of the submain.

We did a visual inspection and the DC side looked OK from what we could see but noticed that the outbuilding was earthed to earth earth by stake and to transformer earth by the armour of the submain. We disconnected the transformer earth so as not to export PME and there's been no issue since. Seems the few volts difference between earth earth and tranny earth was getting the inverter in a muddle.

Local adult retrainee spark had done all the earthing assuming that the more earths the merrier...

 

[Energetic]

We've just had one of these through on a SB4000TL, 2011 vintage, no issues till now. How did you get on with finding/resolving them?

Voltage tests indicate that its on the end of the string - so its one we made off :-(

 

[Eco Deal]

its the RCD protecting the circuit had this on sunny boy inverters before you need 100ma RCD