Naks' Solar System:

[nuyork]

@Naks Did you ever overcome your earth leakage tripping issue? What was the cause and how did you fix it? Did the electricain come out to investigate the issue?

I'm having a similar earth leakage trip issue with my oven/hob/extractor connected to the inverter. So if my oven/hob/extractor is switched on at the wall (oven/hob/extractor not in use), then once load shedding ends and Eskom grid comes back online, then the earth leakage trips. If I switch off my oven/hob switch at the wall, and Eskom grid comes back online, then earth leakage doesn't not trip. My inverter guys have tried to re-wire the DB board and figure out what it could be, but they are at a loss. So I need to get an electrician in to investigate further.

 

[Naks]

@Naks Did you ever overcome your earth leakage tripping issue? What was the cause and how did you fix it? Did the electricain come out to investigate the issue?

I'm having a similar earth leakage trip issue with my oven/hob/extractor connected to the inverter. So if my oven/hob/extractor is switched on at the wall (oven/hob/extractor not in use), then once load shedding ends and Eskom grid comes back online, then the earth leakage trips. If I switch off my oven/hob switch at the wall, and Eskom grid comes back online, then earth leakage doesn't not trip. My inverter guys have tried to re-wire the DB board and figure out what it could be, but they are at a loss. So I need to get an electrician in to investigate further.

Yep, we replaced the EL with a new unit and everything's been working 100% since then.

The malfunctioning EL was also a new one, probably just minute manufacturing tolerances making the difference.

 

[nuyork]

Yep, we replaced the EL with a new unit and everything's been working 100% since then.

The malfunctioning EL was also a new one, probably just minute manufacturing tolerances making the difference.

Thanks for the update. Will advise the electrician to try changing the EL. The current EL has been installed since the house was built over 17 years ago. Hopefully it works.

 

[JSRJJ]

Definitely the new EL will make a huge difference

 

[leon.davibe]

@Naks Did you ever overcome your earth leakage tripping issue? What was the cause and how did you fix it? Did the electricain come out to investigate the issue?

I'm having a similar earth leakage trip issue with my oven/hob/extractor connected to the inverter. So if my oven/hob/extractor is switched on at the wall (oven/hob/extractor not in use), then once load shedding ends and Eskom grid comes back online, then the earth leakage trips. If I switch off my oven/hob switch at the wall, and Eskom grid comes back online, then earth leakage doesn't not trip. My inverter guys have tried to re-wire the DB board and figure out what it could be, but they are at a loss. So I need to get an electrician in to investigate further.

Was the stove moved to inverter recently?

Did you also move the neutral to the inverter neutral bar

 

[HowTo]

Welcome to the solar club.

 

[lkpat]

Welcome to the solar club.

Lol Naks has been on board for some time now
I'm keen to hear how the battery is doing. I started with 10kwh but added another 10. Looking at that price for the 14.... My last 10 cost R75k eina.

 

[nuyork]

Was the stove moved to inverter recently?

Did you also move the neutral to the inverter neutral bar

My house is originally a 3-phase house, and the original oven/hob/extractor was a 3-phase unit for some reason. I got my solar system installed in November 2022 (8kW SunSynk), and back then he said he could not connect the oven/hob system to the inverter at the time, because it was a 3-phase oven/stove.

So I bought myself a new single phase oven and hob (induction) in December, and got an electrician to change the wiring of the old oven and hob from a 3-phase to a single phase standard 2-plug outlet (the old oven/hob was directly connected via wiring to the back of the oven, it seemed like an ancient oven/hob combo unit). The new hob and oven were seperate, and used a standard plug connection.

Once the new oven/hob was connected, and they were both single phase units, my installer said he could connect the oven/hob to the inverter, which was done in January this year. He did all the re-wiring to put all the non-essentials (basically the geyser and oven/hob) onto the single phase and connect it to the inverter. Everything was working perfectly. Geyser was switching on and heating via the inverter, and both oven/hob were working fine via the inverter without any issues. Except I noticed that when load shedding ended and the Eskom grid came back online, that it would trip the earth leakage. At first I was not sure what was tripping the EL, but figured out it was the oven/hob, as when I switched off the oven/hob at the wall next to the hob backslash (not at the DB board), that the EL would no longer trip when Eskom came back. The inverter installers came back multiple times to try and figure it out and looked at all the wiring, and could not figure out why it was tripping the EL. So I have basically been just switching on the oven/hob when I need to use it and then switch it off at the wall when I'm done cooking, to avoid the EL tripping and it's been working out fine.

A new electrician is coming through today to check out the wiring and system though. But from reading this forum and others mentioning that changing their EL to a new one has resolved most of their EL tripping issues, I will advise the electrician of that. Like I mentioned the EL has most likely been here since the house was built back in 2006. I moved into the house in 2011, and I don't ever recall changing the EL since I've been living here.

 

[leon.davibe]

My house is originally a 3-phase house, and the original oven/hob/extractor was a 3-phase unit for some reason. I got my solar system installed in November 2022 (8kW SunSynk), and back then he said he could not connect the oven/hob system to the inverter at the time, because it was a 3-phase oven/stove.

So I bought myself a new single phase oven and hob (induction) in December, and got an electrician to change the wiring of the old oven and hob from a 3-phase to a single phase standard 2-plug outlet (the old oven/hob was directly connected via wiring to the back of the oven, it seemed like an ancient oven/hob combo unit). The new hob and oven were seperate, and used a standard plug connection.

Once the new oven/hob was connected, and they were both single phase units, my installer said he could connect the oven/hob to the inverter, which was done in January this year. He did all the re-wiring to put all the non-essentials (basically the geyser and oven/hob) onto the single phase and connect it to the inverter. Everything was working perfectly. Geyser was switching on and heating via the inverter, and both oven/hob were working fine via the inverter without any issues. Except I noticed that when load shedding ended and the Eskom grid came back online, that it would trip the earth leakage. At first I was not sure what was tripping the EL, but figured out it was the oven/hob, as when I switched off the oven/hob at the wall next to the hob backslash (not at the DB board), that the EL would no longer trip when Eskom came back. The inverter installers came back multiple times to try and figure it out and looked at all the wiring, and could not figure out why it was tripping the EL. So I have basically been just switching on the oven/hob when I need to use it and then switch it off at the wall when I'm done cooking, to avoid the EL tripping and it's been working out fine.

A new electrician is coming through today to check out the wiring and system though. But from reading this forum and others mentioning that changing their EL to a new one has resolved most of their EL tripping issues, I will advise the electrician of that. Like I mentioned the EL has most likely been here since the house was built back in 2006. I moved into the house in 2011, and I don't ever recall changing the EL since I've been living here.

yea there was no need to replace the 3 phase item for a single phase item many devices that can work 3 phase can have a bridge installed to work on a single phase (exluding 3phase motors naturally) as long as the 3 phases load fits in the wire thickness you have

so already i question the competence of the installer

sometimes a faulty over sensitive EL can cause tripping too so yea changing it may help
let them check if there is different neutral bars 1 pre and 1 post inverter
sometimes people don't move the neutrals and thus the neutral connection on the wrong side of the EL that is now post inverter can look like an imbalance/earth leakage to the EL and it trips

i ain't an elecrician so my understanding/expalanation may be off the mark just how i understand it

 

[nuyork]

yea there was no need to replace the 3 phase item for a single phase item many devices that can work 3 phase can have a bridge installed to work on a single phase (exluding 3phase motors naturally) as long as the 3 phases load fits in the wire thickness you have

so already i question the competence of the installer

sometimes a faulty over sensitive EL can cause tripping too so yea changing it may help
let them check if there is different neutral bars 1 pre and 1 post inverter
sometimes people don't move the neutrals and thus the neutral connection on the wrong side of the EL that is now post inverter can look like an imbalance/earth leakage to the EL and it trips

i ain't an elecrician so my understanding/expalanation may be off the mark just how i understand it

Electrician came and seemed to sort it out. It no longer trips. It wasn't the EL, apparently it was a faulty neutral connection that he found and fixed.