Search found 3608 matches

by acmotor
Mon, 08 Nov 2021, 21:53
Forum: Renewable Energy and Storage (Non-EV)
Topic: ELV Solar array - isolation questions
Replies: 9
Views: 1228

Re: ELV Solar array - isolation questions

The standards seem to be moving against us e.g. the new battery standard AS 5139 ( battery >12V and energy storage >1kWh) now abolishes the ELV <120VDC for 'competent persons' category and replaces it with the Decisive Voltage Classification (DVC) system. Under this new system, Non-electricians are ...
by acmotor
Fri, 08 Oct 2021, 15:54
Forum: Renewable Energy and Storage (Non-EV)
Topic: series and parallel rules with 12V lithium batteries
Replies: 9
Views: 1674

series and parallel rules with 12V lithium batteries

You know those 12V battery modules on the market (4 x 3.2V LiFePO4 cells + BMS in a case) ? e.g. Voltax 12V 100Ah stated as being able to be connected up to 4 series or 4 parallel. Does anyone know the technical reasons for the limits often stated on the maximum series and parallel combinations that...
by acmotor
Mon, 28 Jun 2021, 13:59
Forum: Tesla EVs
Topic: China recall - CNBC
Replies: 3
Views: 717

Re: China recall - CNBC

My 3 did a software download on the weekend.
problem solved ?
by acmotor
Sat, 08 May 2021, 17:16
Forum: Mitsubishi
Topic: imiev for sale in Perth
Replies: 2
Views: 1722

Re: imiev for sale in Perth

My imiev is for sale, though it may end up as a trade in. If anyone is interested in it, be quick as once it is traded, the dealers will want more for it. Edit. I have been offered $8k As trade in so now is your chance to grab an imiev at a good price. 114k km 7/2012 delivered white no damage alway...
by acmotor
Tue, 04 May 2021, 11:41
Forum: Mitsubishi
Topic: imiev for sale in Perth
Replies: 2
Views: 1722

Re: imiev for sale in Perth

So I am looking at $8k as trade in.
Anyone interested in a good imiev at a great price let me know quickly before it goes to the dealer.
by acmotor
Fri, 30 Apr 2021, 20:16
Forum: Mitsubishi
Topic: imiev for sale in Perth
Replies: 2
Views: 1722

imiev for sale in Perth

My imiev is for sale, though it may end up as a trade in. If anyone is interested in it, be quick as once it is traded, the dealers will want more for it. I am asking $8k as that is what has been offered as trade in. It is worth more like $12k on the market so grab a bargain. 114k km 7/2012 delivere...
by acmotor
Fri, 30 Apr 2021, 19:50
Forum: Mitsubishi
Topic: Any i-MiEV's for sale?
Replies: 22
Views: 10893

Re: Any i-MiEV's for sale?

My imiev is for sale, though it may end up as a trade in. If anyone is interested in it, be quick as once it is traded, the dealers will want more for it. Price is not fixed yet. Ask any questions and make an offer. I will update when dealer sets trade in price. 114k km 7/2012 delivered white no dam...
by acmotor
Wed, 09 Dec 2020, 06:53
Forum: Mitsubishi
Topic: Aftermarket iMiEV battery upgrade project
Replies: 848
Views: 628387

Re: Aftermarket iMiEV battery upgrade project

My thinking is that it is not the practicality of those particular cells but rather the breaking of the knowledge ground around the imiev brain accepting an aftermarket upsize. For this work you are to be applauded.
by acmotor
Tue, 08 Dec 2020, 11:11
Forum: Mitsubishi
Topic: Aftermarket iMiEV battery upgrade project
Replies: 848
Views: 628387

Re: Aftermarket iMiEV battery upgrade project

Great work there !
I am among the many who are hanging on your every update !
Please keep up the posts.
by acmotor
Thu, 20 Aug 2020, 18:00
Forum: Renewable Energy and Storage (Non-EV)
Topic: jonescg's home battery storage system
Replies: 254
Views: 37718

Re: jonescg's home battery storage system

jonescg, Looks like it is coming together nicely. A few thoughts... Did you have to order the cell top boards from ev-power set for 3.6V max for OV rather than 4V ? Or is the OV programmable ? How do you plan to access the top of the cells in your cabinet to do manual voltage readings given the opti...
by acmotor
Fri, 08 May 2020, 07:38
Forum: Mitsubishi
Topic: *Recall*Vacuum pump for brakes
Replies: 46
Views: 11781

Re: *Recall*Vacuum pump for brakes

Sorry to throw in question the identification of silver vs black vacuum pumps as being the target of the recall. I had the original silver pump that was a replacement in 2012 in the original recall at the time and did 7 years and 105,000km and working fine. It was replaced in Feb 2019 by MMA field t...
by acmotor
Sun, 17 Nov 2019, 20:28
Forum: Renewable Energy and Storage (Non-EV)
Topic: feeding DC into a PV grid connect inverter
Replies: 12
Views: 2222

Re: feeding DC into a PV grid connect inverter

Tried a few inverter gensets. Only the Honda EU range with parallel connectors work (safety shielded banana plugs that are just in parallel with 3 pin sockets). Other brands with parallel connectors are likely to work. The more basic (older) inverter gensets don't support AC sync. Mickey Blue and Ge...
by acmotor
Sun, 17 Nov 2019, 15:27
Forum: Renewable Energy and Storage (Non-EV)
Topic: feeding DC into a PV grid connect inverter
Replies: 12
Views: 2222

Re: feeding DC into a PV grid connect inverter

Looked at some more Honda EU generator info then tried an EU10 (1kW) genset direct in parallel to house offgrid inverter. It works fine... with the proviso of care with islanding safety and plug gender etc. Sequence used.. connect genset to operating house offgrid inverter first (via an energy meter...
by acmotor
Sun, 17 Nov 2019, 13:29
Forum: Renewable Energy and Storage (Non-EV)
Topic: feeding DC into a PV grid connect inverter
Replies: 12
Views: 2222

Re: feeding DC into a PV grid connect inverter

Interesting...
Honda EU inverter generator will sync with an existing power source if power source is present first.
https://www.youtube.com/watch?v=VxvhU03EuD0
by acmotor
Sun, 17 Nov 2019, 07:52
Forum: Renewable Energy and Storage (Non-EV)
Topic: feeding DC into a PV grid connect inverter
Replies: 12
Views: 2222

Re: feeding DC into a PV grid connect inverter

Thinking about that ..... Inverter genset with no apparent option to sync, or at least maintain sync as there will be two independent frequency sources. Honda and some others have a proprietary 'between gensets' sync system. Might research that. Could take DC direct from HF 3 phase rectifier inside ...
by acmotor
Sat, 16 Nov 2019, 16:12
Forum: Renewable Energy and Storage (Non-EV)
Topic: feeding DC into a PV grid connect inverter
Replies: 12
Views: 2222

Re: feeding DC into a PV grid connect inverter

I can go for a 2.5kW GCI with output power limit and DC current limit as you note. A Delta Solivia 2.5 is to hand. spec is 3.1kW max PV in but sofware parameter limited to 2.5kW AC output. 18A input DC current limit. GCI Starts around 100V but would need 150V to develop 2.5kW AC output (eff. around ...
by acmotor
Sat, 16 Nov 2019, 12:07
Forum: Renewable Energy and Storage (Non-EV)
Topic: feeding DC into a PV grid connect inverter
Replies: 12
Views: 2222

Re: feeding DC into a PV grid connect inverter

My offgrid system runs a 6kW (18kW surge) low frequency inverter with 3kW and 2.5kW GCIs connected to output (so AC coupled). Also a HAWT that helps, on occasion via a Windy Boy GCI. Battery bank charges by backfeed through inverter as it is also a charger when CGI pushes. Works a treat. Inverter an...
by acmotor
Fri, 15 Nov 2019, 22:49
Forum: Renewable Energy and Storage (Non-EV)
Topic: feeding DC into a PV grid connect inverter
Replies: 12
Views: 2222

Re: feeding DC into a PV grid connect inverter

good.

What sort of DC voltages did you use ?

I expect running to DC input current limit is one way of controlling things.
by acmotor
Fri, 15 Nov 2019, 15:32
Forum: Renewable Energy and Storage (Non-EV)
Topic: feeding DC into a PV grid connect inverter
Replies: 12
Views: 2222

feeding DC into a PV grid connect inverter

Does anyone have experience with feeding DC (not from PVs) directly into a PV grid connect inverter ? e.g. DC from a power source (generator, power supply, battery) within the rated DC input voltage range of the GCI and current limited (or not) to GCI current rating. I see that some MPPT trackers ex...
by acmotor
Tue, 18 Jun 2019, 00:39
Forum: Renewable Energy and Storage (Non-EV)
Topic: Small wind turbines
Replies: 5
Views: 1583

Re: Small wind turbines

Spend a little time considering the hard facts of wind and power using a calculator like.. https://rechneronline.de/wind-power/ On a seriously windy day with average 30km/h wind for much of the day (gusts to 50km/h) my '1kw' 2.4m dia WT can produce 10kWh. It might do this 30 days a year. Remember wi...
by acmotor
Thu, 07 Mar 2019, 08:55
Forum: Other
Topic: Expressions of Interest - Electric buses for sale!
Replies: 21
Views: 7245

Re: Expressions of Interest - Electric buses for sale!

Chris, the range of 200 to 300km you metioned in an earlier post..... wasn't the touring coach the bus that set the record of 1018km travelled on one charge ? A Guinness record at the time ?
by acmotor
Mon, 12 Nov 2018, 13:32
Forum: Mitsubishi
Topic: Imiev repair - precharge resistor
Replies: 28
Views: 8308

Re: Imiev repair - precharge resistor

FWIW my guess would be min 300ohm max 2000ohm and rated at a few hundred W down to maybe 50W. Duty cycle would have been ECU controlled but there is potential for it to burn out if there was a control issue. It may be possible to operate the fast charge chademo contactor directly via 12V on D25 and ...
by acmotor
Wed, 10 Oct 2018, 07:13
Forum: Other
Topic: Expressions of Interest - Electric buses for sale!
Replies: 21
Views: 7245

Re: Expressions of Interest - Electric buses for sale!

Just considering the worst case scenario here. Most vehicles can end up with a special licence in Australia if they were able to be licensed in other countries. The process may cost many thousands of dollars to work through. It may be though that the special licence will exclude them from public use...
by acmotor
Wed, 06 Dec 2017, 16:29
Forum: Renewable Energy and Storage (Non-EV)
Topic: Anyone in Rockingham area WA can check out a solar grid connect inverter ?
Replies: 1
Views: 1573

Anyone in Rockingham area WA can check out a solar grid connect inverter ?

I just had a call from a chap in Rockingham who has a PV system and Growatt inverter out of 5 year warranty. He has a fault and needs the system checked out. Paying job. I spoke to him on phone and he realises the inverter may be faulty and require replacement. Rockingham is out of my area. Usual st...
by acmotor
Sat, 21 Oct 2017, 09:47
Forum: The Lounge
Topic: Wind Turbine vertical axis
Replies: 11
Views: 4017

Re: Wind Turbine vertical axis

" On the other topic in my first post, I recorded some data from the friend's system and clearly established that the LG CHEM 12.8kWh lithium battery is only working at half capacity. I supplied the data to the battery supplier and LG has agreed to replace the whole 12 month old battery. I wil...