Search found 250 matches

by doggy
Fri, 17 Jan 2020, 13:04
Forum: Renewable Energy and Storage (Non-EV)
Topic: Is anyone using an arc welder with an offgrid system
Replies: 107
Views: 6462

Re: Is anyone using an arc welder with an offgrid system

Hi Chris, I too have a 2400W angle grinder. Startup current is around 65amps. Certainly if you were offgrid, I would not use a HF inverter for loads like that or for welding (at least using a transformer based rather than inverter based) welder. LF inverters can typically handle much higher surge cu...
by doggy
Wed, 08 Jan 2020, 11:00
Forum: For Sale/Wanted
Topic: SOLD: 8* EVPOWER BMS Modules CBM180 Rev2.0
Replies: 4
Views: 263

SOLD: 8* EVPOWER BMS Modules CBM180 Rev2.0

These are sold.
by doggy
Fri, 03 Jan 2020, 08:24
Forum: Charging Infrastructure
Topic: OpenEVSE Charging Station any Users?
Replies: 24
Views: 1138

Re: OpenEVSE Charging Station any Users?

The replacement PSU arrived quicker than expected from RS Components and I have installed it. I also needed to replace one of the 1.6A non-resettable PCB fuses which had blown (there is one in each of the neutral and live connections to the PSU). The module is working fine again, has less RFI and wi...
by doggy
Fri, 03 Jan 2020, 03:55
Forum: For Sale/Wanted
Topic: SOLD: 8* EVPOWER BMS Modules CBM180 Rev2.0
Replies: 4
Views: 263

Re: 8* EVPOWER BMS Modules CBM180 Rev2.0

Hi Dan,
Please PM me your details.
Best Regards,
Dave
by doggy
Wed, 01 Jan 2020, 07:42
Forum: For Sale/Wanted
Topic: SOLD: 8* EVPOWER BMS Modules CBM180 Rev2.0
Replies: 4
Views: 263

SOLD: 8* EVPOWER BMS Modules CBM180 Rev2.0

I have 8 EVPower BMS modules. They are all working. Removed from a CALB180 battery bank. LifePO4 chemistry. Gold plated tracks. 1amp max bleed starting 3.5V More specs on the EVPower website. Retail for $17.60 each so $140.80. SELLING FOR $50 total for the eight. Plus postage from Avalon Beach NSW (...
by doggy
Sun, 29 Dec 2019, 14:43
Forum: Renewable Energy and Storage (Non-EV)
Topic: Interworking a Sunny Island with a Redflow Flow battery
Replies: 10
Views: 352

Re: Interworking a Sunny Island with a Redflow Flow battery

I also bought a bunch of SuperCaps last year and found the same sorts of issues. As well as the things mentioned by antiscab, I found the leakage too high and balancing them (both charge and discharge) was a pain and not very successful. I am amazed that some US power companies seem to be successful...
by doggy
Sun, 29 Dec 2019, 14:28
Forum: Charging Infrastructure
Topic: OpenEVSE Charging Station any Users?
Replies: 24
Views: 1138

Re: OpenEVSE Charging Station any Users?

Hi Chris, I have not checked the code. However, my understanding of pressing the pause button (either directly or via the web interface) is that the uP should tell the car via the Pilot signals to turn off charging. I have frequently used the pause button (both ways) and not detected an issue. Howev...
by doggy
Fri, 27 Dec 2019, 04:32
Forum: Charging Infrastructure
Topic: OpenEVSE Charging Station any Users?
Replies: 24
Views: 1138

Re: OpenEVSE Charging Station any Users?

In my unit, the only thing generating heat is the AC/DC converter. Also, if you build a 3ph unit, you need to be careful not to take any additional DC (for the contactor) from the AC/DC PSU which is on the limit. Also, cabling should be crimped in the Mennekes and where possible elsewhere (reduces r...
by doggy
Thu, 26 Dec 2019, 13:49
Forum: Charging Infrastructure
Topic: OpenEVSE Charging Station any Users?
Replies: 24
Views: 1138

Re: OpenEVSE Charging Station any Users?

Well, after 18months my OpenEVSE has DIED! Temperature was 33degC (inside the box). Upon checking, I found that the 5v+12V DC supply is DEAD. Fortunately, I have a backup EVSE so am not stuck. The DC power supply in the unit is its Achilles Heel because it runs quite hot and they run it close to its...
by doggy
Wed, 04 Dec 2019, 13:55
Forum: Renewable Energy and Storage (Non-EV)
Topic: AGM for home storage?
Replies: 6
Views: 666

Re: AGM for home storage?

AGMs can be very long lived and reliable: a. I had a 1000AH/12V set up on my barge in France. After 8yrs, they are in almost perfect condition. Average cycle depth only 23%. 4.5kW inverter. Excellent solar MPPT plus engine 4step temperature controlled charging plus 120A mains charging (when mains av...
by doggy
Tue, 03 Dec 2019, 16:35
Forum: Charging Infrastructure
Topic: OpenEVSE Charging Station any Users?
Replies: 24
Views: 1138

Re: OpenEVSE Charging Station any Users?

Lobster & Jonescg, Just a note about the OpenEVSE. If the advanced one, the temperature sensor is on the LCD panel. If you wire it well, the only heat generating object is the AC:DC converter (aforementioned for RFI). If you use the box flat- as shown above- the heat of the converter artificially in...
by doggy
Tue, 03 Dec 2019, 16:13
Forum: Charging Infrastructure
Topic: OpenEVSE Charging Station any Users?
Replies: 24
Views: 1138

Re: OpenEVSE Charging Station any Users?

The OpenEVSE box is STRONG!
by doggy
Tue, 03 Dec 2019, 07:19
Forum: Charging Infrastructure
Topic: OpenEVSE Charging Station any Users?
Replies: 24
Views: 1138

Re: OpenEVSE Charging Station any Users?

Not showing 0.47uF as I added this later....
by doggy
Tue, 03 Dec 2019, 07:18
Forum: Charging Infrastructure
Topic: OpenEVSE Charging Station any Users?
Replies: 24
Views: 1138

Re: OpenEVSE Charging Station any Users?

Herewith the 3ph box.
by doggy
Tue, 03 Dec 2019, 07:11
Forum: Charging Infrastructure
Topic: OpenEVSE Charging Station any Users?
Replies: 24
Views: 1138

Re: OpenEVSE Charging Station any Users?

This is the unused box.
Will dig out photos of the 3Ph unit. As I already had a Type2:type2 cable, I mounted a Type2 socket on the box rather than have a flying lead.
Cheers,
Dave
by doggy
Tue, 03 Dec 2019, 07:06
Forum: Charging Infrastructure
Topic: OpenEVSE Charging Station any Users?
Replies: 24
Views: 1138

Re: OpenEVSE Charging Station any Users?

I am using the Emon SW latest version.
D
by doggy
Mon, 02 Dec 2019, 18:42
Forum: Charging Infrastructure
Topic: OpenEVSE Charging Station any Users?
Replies: 24
Views: 1138

Re: OpenEVSE Charging Station any Users?

I also built an OpenEVSE last July, so 17 months ago. It is a three phase unit in a bigger box (I still have the single phase box that came with the advanced kit if anyone wants one). I use it for single phasre 32A at home and three phasesat Showgrounds et al. I included a three phase RCD inside the...
by doggy
Sun, 20 Oct 2019, 09:48
Forum: Renault
Topic: Single phase charging
Replies: 10
Views: 900

Re: Single phase charging

The python script runs on a reliable low power Linux server which also hosts my email, file storage for the house, CCTV footage etc. This server runs on 12V using OpenUPS power supplies and a low power Motherboard/CPU and ZFS disk array. However, the python script could run on anything as I also hav...
by doggy
Sun, 20 Oct 2019, 04:50
Forum: Renault
Topic: Single phase charging
Replies: 10
Views: 900

Re: Single phase charging

OpenEVSE needs no extra software. As standard it can track extra solar. However, I did need to write a Python script which extracts data from the Enphase Envoy (controller for the microInverters) and make it available through MQTT. I DID have to write heaps of software for my two lithium chargers, B...
by doggy
Sat, 19 Oct 2019, 13:54
Forum: Renault
Topic: Single phase charging
Replies: 10
Views: 900

Re: Single phase charging

Hi Matt, Those figures agree closely with my experience. However the 6A three phase ones are definitely odd. I'm wondering if the heat pump was running to condition the battery? Heat pump can draw over 3kW and it runs directly off the traction battery. Since my original post, I did implement two Lit...
by doggy
Fri, 18 Oct 2019, 11:58
Forum: Renewable Energy and Storage (Non-EV)
Topic: Sumry Inverter-Charger in Caravan
Replies: 7
Views: 539

Re: Sumry Inverter-Charger in Caravan

Correct.

Max current drain, both on full bore is 135 to 145 amps when the cells are fairly well charged (about 80%).

Load on the inverter is approx 70%. Efficiency around 90%.

These units have a high COP (which is the main reason I chose them).

Regds,
Dave
by doggy
Wed, 16 Oct 2019, 14:13
Forum: Renewable Energy and Storage (Non-EV)
Topic: Sumry Inverter-Charger in Caravan
Replies: 7
Views: 539

Re: Sumry Inverter-Charger in Caravan

For those with a Sumry or contemplating same:

I now have my 5kVA unit running two LG split air conditioners. Each is 6,000W and the SUMRY handles both with ease, even on maximum cooling or maximum heating both running together.

The Sumry is driven by 8x AVASS bus cells.

Cheers,
Dave
by doggy
Mon, 14 Oct 2019, 15:41
Forum: General EV Discussion
Topic: NSW strategy and plan for EVs in NSW
Replies: 0
Views: 646

NSW strategy and plan for EVs in NSW

https://future.transport.nsw.gov.au/sites/default/files/media/documents/2019/Future%20Transport%20NSW%20Electric%20%26%20Hybrid%20vehicle%20plan.pdf I urge all NSW AEVA members to provide feedback on this (email address contained in the document). It is quite well written and moderately accurate but...
by doggy
Wed, 25 Sep 2019, 13:05
Forum: Renewable Energy and Storage (Non-EV)
Topic: Sumry Inverter-Charger in Caravan
Replies: 7
Views: 539

Re: Sumry Inverter-Charger in Caravan

Hi Jordan,
I have been able to communicate with the RS232.
Can do some basic stuff and read voltages etc.
Hary has also been able to do this.
But neither of us is actually using it.
I am using the remote control panel and also have a very large DC contactor on the battery side.
Cheers,
Dave
by doggy
Wed, 25 Sep 2019, 08:01
Forum: Renewable Energy and Storage (Non-EV)
Topic: Is anyone using an arc welder with an offgrid system
Replies: 107
Views: 6462

Re: Is anyone using an arc welder with an offgrid system

Not sure you understand my setup. The house is bonded in the normal manner. The grid does NOT connect to the inverter in any way. In other words I am NOT using the grid input (which is not connected) nor the ATS nor the inverter's charger. Things connected to the inverter are totally separate from t...