B
beefheart
anyone had any experience of this ? tripping out the 30ma through capacitor leakage and manufacturer recommended a 300ma protection, not cheap and not easy to get from your average wholesaler
View the thread, titled "nuisance tripping on power one 3.6" which is posted in Solar PV Forum | Solar Panels Forum on Electricians Forums.
E
ExtremePV
Hi Beefheart,
I'd not class it as nuisance tripping as its a TL inverter so min. 100ma RCB should be fitted if RCB required.
If you have to use RCB, and can't rewire so you don't need to.. then I'd suggest trying a 100ma first. More common and unlikely (but not impossible) to be above 100ma.
I'd not class it as nuisance tripping as its a TL inverter so min. 100ma RCB should be fitted if RCB required.
If you have to use RCB, and can't rewire so you don't need to.. then I'd suggest trying a 100ma first. More common and unlikely (but not impossible) to be above 100ma.
I believe PowerOne recommend a 300mA trip limit for their TL inverters, most others (SMA, Fronius etc) recommend a 100mA minimum trip limit. We can provide the RCD for you if you wish, Type-A or Type-B generally readily available in 2-pole config, 25A or 40A.
Andy
Andy
W
waverider
I have also experienced this problem recently. The Power-One manual recommends a 300mA RCD Type AC. I have tried a 100mA RCD but this also trips. Thing is I have used a 30mA RCD on quite a few Power-One installs with no problem. I guess I have to go back and change them.
Power-One technical services advised the inverters have an integrated RCD protection device which will protect the system from a ground fault on the DC side. I guess this means the array does not have to be earthed?
I spoke to someone at NAPIT who said that a RCD is not necessary unless it is TT or the cables are in the wall however Power-One technical services advised the use of a 300mA RCD Type AC. So that is what I'm going to do. Would be nice not to have to use a RCD but I'm not going to risk it.
Hope this helps.
Power-One technical services advised the inverters have an integrated RCD protection device which will protect the system from a ground fault on the DC side. I guess this means the array does not have to be earthed?
I spoke to someone at NAPIT who said that a RCD is not necessary unless it is TT or the cables are in the wall however Power-One technical services advised the use of a 300mA RCD Type AC. So that is what I'm going to do. Would be nice not to have to use a RCD but I'm not going to risk it.
Hope this helps.
I could be wrong but I thought that the PowerOne TL units have a built-in RCMU (residual current monitoring unit), not the same thing as an RCD. As for recommending a Type-AC unit, as oppose to a Type-A, are you sure that they said that? Just curious, ta
B
beefheart
hi all, 300ma seems to have stopped the tripping but will be monitoring for next week or so, i have also fitted other 3.6 but from now on 300ma every time expensive, but the messing about has cost a lot of time and travel. beware. oh by the way pme system stake for array framework, shame as i quite liked the inverter but the extra cost makes it a dual string only option, the desktop is quite liked by customers too when is fronius going to catch up? my preferred inverter.
Reply to the thread, titled "nuisance tripping on power one 3.6" which is posted in Solar PV Forum | Solar Panels Forum on Electricians Forums.
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