Search found 3719 matches

by coulomb
Yesterday, 17:54
Forum: General EV Discussion
Topic: Making home EV ready
Replies: 36
Views: 572

Re: Making home EV ready

T1 Terry wrote:
Yesterday, 10:52
would something like this block the AC on the solar/battery lines ...
No, that AC has to be there by the design, you can't safely shunt it to earth or anything.
by coulomb
Thu, 17 Oct 2019, 15:15
Forum: General EV Discussion
Topic: Making home EV ready
Replies: 36
Views: 572

Re: Making home EV ready

T1 Terry wrote:
Thu, 17 Oct 2019, 12:57
I do have a couple of MS inverters with the lower solar open circuit voltage, will these have the same effect of AC on one leg of the solar to earth?
No. These connect to the battery directly, and the battery is isolated from the AC output.
by coulomb
Thu, 17 Oct 2019, 12:12
Forum: General EV Discussion
Topic: Making home EV ready
Replies: 36
Views: 572

Re: Making home EV ready

The output side of the inverter (240vac) must be isolated from the DC solar input, surely, otherwise there would be both 450vdc and 240vac on the same conductors and the solar isolators are only designed for max 500vdc so I'm not sure if they have an AC rating at all. The AC component is only from ...
by coulomb
Thu, 17 Oct 2019, 10:10
Forum: General EV Discussion
Topic: Making home EV ready
Replies: 36
Views: 572

Re: Making home EV ready

The cars own motor controller output swings from +400v to -400v, so the insulation would be designed to handle that kind of switching. But the motor is floating, whereas the mains has a low impedance connection to earth. I worry about the modern cells with their metal cases (if they have any) being...
by coulomb
Wed, 16 Oct 2019, 22:14
Forum: General EV Discussion
Topic: Making home EV ready
Replies: 36
Views: 572

Re: Making home EV ready

... the particular inverter I'm looking at, PIP5048MG... I doubt the 48v battery sees a big ripple across it so why would the solar or vehicle battery feeding in through the solar? The isolating transformer is in the 48 V to/from 400 V DC-DC bidirectional converter. So the battery is isolated from ...
by coulomb
Wed, 16 Oct 2019, 21:48
Forum: Batteries, charging, management and monitoring
Topic: Testing a traction pack before using
Replies: 16
Views: 237

Re: Testing a traction pack before using

be aware that switching dc is much harder on the contacts than switching ac. Yes! In fact, I would not use any AC switch at all. It's OK for the switch to be there, as long as it's on (or switches on). Never switching off! For that reason, a pop-up toaster or the like is a no goer. I'd also rule ou...
by coulomb
Wed, 16 Oct 2019, 21:43
Forum: Members Machines
Topic: Brendon_m Moke
Replies: 154
Views: 10295

Re: Brendon_m Moke

jonescg wrote:
Wed, 16 Oct 2019, 19:22
Spartan! Compared to ...
Yeah! Where's the rest of it? ;)
by coulomb
Wed, 16 Oct 2019, 08:37
Forum: Renewable Energy and Storage (Non-EV)
Topic: PIP-4048MS and PIP-5048MS inverters
Replies: 2428
Views: 456304

Re: PIP-4048MS and PIP-5048MS inverters

I start to think that there is some error in the program with commands that are longer than 8 chars... Well, that's actually testable. Unlike the MS models (with firmware up to version 73.00 at least), the PE command can take a variable number of parameters. So you could send the 9 character PExxxx...
by coulomb
Tue, 15 Oct 2019, 19:59
Forum: EV Motoring
Topic: The Aptera is back
Replies: 26
Views: 247

Re: The Aptera is back

Instead the big coal corp gets the money with no net benefit to the environment. Err, Queensland Rail gets the compensation money in this case, not exactly a "big coal corp" (though one could perhaps argue how different they really are). These so called environmental protestors are handing the bask...
by coulomb
Tue, 15 Oct 2019, 11:16
Forum: Renewable Energy and Storage (Non-EV)
Topic: PIP-4048MS and PIP-5048MS inverters
Replies: 2428
Views: 456304

Re: PIP-4048MS and PIP-5048MS inverters

I just noticed that setting 13 has the note: "when selecting SBU priority or Solar first in program 01". Are you in either of these output source priorities? Oops! I just realised that I was using an MS manual, and the GKs are different. I had it in my head that only MKs (Kings) are very different ...
by coulomb
Mon, 14 Oct 2019, 17:51
Forum: Renewable Energy and Storage (Non-EV)
Topic: PIP-4048MS and PIP-5048MS inverters
Replies: 2428
Views: 456304

Re: PIP-4048MS and PIP-5048MS inverters

If the PIP switches to line mode after a 110% load event, it stays there forever until I completely turn it off and on again I just noticed that setting 13 has the note: "when selecting SBU priority or Solar first in program 01". Are you in either of these output source priorities? [ Edit: oops. Th...
by coulomb
Mon, 14 Oct 2019, 08:08
Forum: Renewable Energy and Storage (Non-EV)
Topic: PIP-4048MS and PIP-5048MS inverters
Replies: 2428
Views: 456304

Re: PIP-4048MS and PIP-5048MS inverters

Hello together! Welcome to the forum. I own an PIP 5048GK We have a separate topic for the GE/GK/MG models . But since this is a protocol issue, and the protocols are more or less uniform across the models, I'm happy to let this post stay in this topic. I have a cmd line interface with all CRC stuf...
by coulomb
Sun, 13 Oct 2019, 20:57
Forum: Charging Infrastructure
Topic: Fast charging infrastructure - forward-looking overview
Replies: 9
Views: 120

Re: Fast charging infrastructure - forward-looking overview

I was going to suggest the topology is capable of 150kw+ too, but then I realised as a continuous rating as you would for charging, the powerstage would need to be significantly better cooled than for just driving duty Yeah. That's the thing with very fast charging. You want to be able to drive for...
by coulomb
Sun, 13 Oct 2019, 20:49
Forum: Charging Infrastructure
Topic: Fast charging infrastructure - forward-looking overview
Replies: 9
Views: 120

Re: Fast charging infrastructure - forward-looking overview

All the fast charge stations (at least the ones in WA) are AC fast charge too I see that they are listed in Plugshare as 50 kW. So that would be 70+ A per phase. Is that for real? Or just that it's an AC outlet in a box that can supply 50 kW DC so they call it 50 kW? I see 63 A type 2 cables for sa...
by coulomb
Sat, 12 Oct 2019, 08:55
Forum: For Sale/Wanted
Topic: 9 Nissan Leafs for auction at Pickles: 8 NSW, 1 ACT
Replies: 3
Views: 159

Re: 9 Nissan Leafs for auction at Pickles: 8 NSW, 1 ACT

There were 7 Leafs at auction from NSW a month ago. They were traced back (by someone on the OzLeaf forum) to NSW and local government. These were low km, but heavy degradation for the distance driven (I don't recall how many capacity bars they had lost). It was concluded that they were likely charg...
by coulomb
Fri, 11 Oct 2019, 14:50
Forum: Mitsubishi
Topic: 2020 Outlander PHEV
Replies: 4
Views: 93

Re: 2020 Highlander PHEV

g4qber wrote:
Fri, 11 Oct 2019, 13:34
Do you mean Mitsubishi Outlander PHEV?
Sigh. Yes, I did. Edited.
by coulomb
Fri, 11 Oct 2019, 07:45
Forum: Mitsubishi
Topic: 2020 Outlander PHEV
Replies: 4
Views: 93

2020 Outlander PHEV

A friend recently paid a deposit on a 2020 Outlander PHEV. It seems that they are claiming some 100 km of all-electric range. [ Edit: it seems that it's a 2020 Model Year, which means late 2019, which means the model with the ~10 kWh / ~50 km EV only range battery. Sigh. ] He didn't take a photo of ...
by coulomb
Sat, 05 Oct 2019, 22:19
Forum: Technical and conversion discussion
Topic: Prelude conversion project - some questions
Replies: 429
Views: 28421

Re: Prelude conversion project - some questions

New versus old. The Enable line must come from that side? Yes. It looks like the control board is very roughly the same size as in the older models, and that enable line goes to the control board. It sure looks like an afterthought though. Edit: So the control board looks like it's at the bottom of...
by coulomb
Sat, 05 Oct 2019, 22:03
Forum: Renewable Energy and Storage (Non-EV)
Topic: PIP-4048MS and PIP-5048MS inverters
Replies: 2428
Views: 456304

Re: PIP-4048MS and PIP-5048MS inverters

how does that get packed into a 3 byte response? As a decimal number. For example, 012 = 8 + 4 = 2³ + 2², so bits 3 and 2 are set (inverter and load relays are on respectively, everything else is off). Or 012 = 0000 1100 in binary, again with bits 3 and 2 set. Or as Weber emailed me; perhaps I shou...
by coulomb
Sat, 05 Oct 2019, 10:40
Forum: Renewable Energy and Storage (Non-EV)
Topic: PIP-4048MS and PIP-5048MS inverters
Replies: 2428
Views: 456304

Re: PIP-4048MS and PIP-5048MS inverters

As I understand it the protocol uses ascii digits '0' and '1' to represent fields like this (as, for example in the QPIWS query). If that is so then your Status field description doesn't make a lot of sense to me. Can you clarify it for me please. Sorry, I forgot to address this part of your post. ...
by coulomb
Wed, 02 Oct 2019, 18:49
Forum: Renewable Energy and Storage (Non-EV)
Topic: PIP-4048MS and PIP-5048MS inverters
Replies: 2428
Views: 456304

Re: PIP-4048MS and PIP-5048MS inverters

My first post on the forum. Welcome. On my last visit I managed to get a (NAKss back from the device, so hopefully I'm getting somewhere. Well, you have communications happening, to and from. But you might not be getting the CRCs correct, etc. @coulomb , The modes listed below seem to be different ...
by coulomb
Wed, 02 Oct 2019, 11:41
Forum: Charging Infrastructure
Topic: My first public fast charge
Replies: 12
Views: 621

Re: My first public fast charge

Ah. That would explain the Veefil branding, I suppose. Sigh. Maybe one day...
by coulomb
Wed, 02 Oct 2019, 09:23
Forum: General EV Discussion
Topic: New [embed]...[/embed] BBCode
Replies: 2
Views: 439

Re: New [embed]...[/embed] BBCode

I thought I'd add to Weber's post above by distilling an email he kindly sent to me some time ago, with the rules for constructing an embedded YouTube video. The URL has to start with https://youtube.com/embed/ video-id (where video-id is the unique code for the video; in Weber's example above it is...
by coulomb
Tue, 01 Oct 2019, 22:25
Forum: Charging Infrastructure
Topic: My first public fast charge
Replies: 12
Views: 621

Re: My first public fast charge

It seems that I missed out on spotting a major piece of infrastructure that is presumably in that building beside the chargers (see first post this topic): the power and control units for the ultra rapid chargers. Unlike the 50 kW units, which I believe have everything in the unit that you see, the ...
by coulomb
Tue, 01 Oct 2019, 20:34
Forum: Renewable Energy and Storage (Non-EV)
Topic: 4048 Inverter as 3 Phase setup but utility is only single phase
Replies: 4
Views: 333

Re: 4048 Inverter as 3 Phase setup but utility is only single phase

after 3 month of waiting finally we get the MG ZS EV delivered... It looks like that's a British designed and styled car manufactured in China; is that correct? As a point of interest, how does its purchase price compare with similarly sized petrol or diesel cars? The charger is single phase not 3 ...