Search found 3677 matches

by coulomb
Sat, 31 Aug 2019, 12:13
Forum: Renewable Energy and Storage (Non-EV)
Topic: 3 phase supply but no 415v connections
Replies: 20
Views: 349

Re: 3 phase supply but no 415v connections

Hmmm..... that 3 phase hybrid inverter won't do the job if it can only provide 3.3kW because there is a single phase monster ducted air con unit that can suck a peak 26.4 amps... That's OK, just don't put it on the essential loads output. Because it's a hybrid, the grid will supply some of it and s...
by coulomb
Fri, 30 Aug 2019, 20:26
Forum: Hyundai
Topic: Kona Charging at Fast Chargers
Replies: 19
Views: 392

Re: Kona Charging at Fast Chargers

Oh ... I thought I had read 100kW ... is that AC at 100kW and DC at 70kW and onboard at 7.2kw? AC charging is always through the on board charger (OBC). That's limited to 7.2 kW, so AC charging is limited to 7.2 kW. To get a higher AC charging rate, the on board charger would have to be upgraded. S...
by coulomb
Fri, 30 Aug 2019, 20:09
Forum: Renewable Energy and Storage (Non-EV)
Topic: 3 phase supply but no 415v connections
Replies: 20
Views: 349

Re: 3 phase supply but no 415v connections

This 3 phase inverter is 10kW, is that a 3333w per phase limit, or can it shift output from one phase to another as required to a max of 10kW? It's 3.33 kW per phase, so no one phase can be transferring more than 3.33 kW at any one time (with allowance for short term overloads). However, within tho...
by coulomb
Wed, 28 Aug 2019, 18:13
Forum: Batteries, charging, management and monitoring
Topic: HELP PLEASE I think I killed my cells
Replies: 26
Views: 620

Re: HELP PLEASE I think I killed my cells

lobster wrote:
Wed, 28 Aug 2019, 17:38
...OUT OF STOCK ONLINE
In stock at Aspley [ edit: and pretty much nowhere else near Brisbane ], according to the web page. If interested, phone ahead to avoid disappointment.
by coulomb
Tue, 27 Aug 2019, 11:07
Forum: Nissan Leaf
Topic: Home charging
Replies: 24
Views: 588

Re: Home charging

For a Leaf, I assume that 3 phase charging is overkill though seems not much in it for pricing. Three phase or not would be decided by (1) if you car can use three phase (I assume that Leaf 2.0 can as it uses type 2 connectors, earlier models can not as they use the J1772 type 1 connector), and (2)...
by coulomb
Tue, 27 Aug 2019, 11:03
Forum: Nissan Leaf
Topic: Home charging
Replies: 24
Views: 588

Re: Home charging

Pics below show what happens to normal leads with extended EV charging use. We've argued this before (back in 2013). A properly prepared and maintained GPO and plug won't overheat like that. I paid an extra $7 for my outdoor outlet's metal parts to be rhodium plated (the 15 A outlet with rhodium is...
by coulomb
Mon, 26 Aug 2019, 22:08
Forum: Charging Infrastructure
Topic: 3 phase outlet, what is suitable for EV charging?
Replies: 16
Views: 396

Re: 3 phase outlet, what is suitable for EV charging?

22 kW is 32 A per phase (230 x 3 x 32 = 22,080). And 240 volts X 1.732 (square root of 3 (phases) ) = 415 volts Sure, 415 V phase to phase. But with 3-phase loads, either the voltage or current gets split such that the load only sees 1/√3 times that voltage or current. So either the 415 V is split ...
by coulomb
Mon, 26 Aug 2019, 19:23
Forum: Charging Infrastructure
Topic: 3 phase outlet, what is suitable for EV charging?
Replies: 16
Views: 396

Re: 3 phase outlet, what is suitable for EV charging?

So, that would be the circuit to supply one or more 3 phase EV chargers? I never did get my head around how 3 phase converted to watts, 22kW appears to be the biggest expected demand, 22 kW is 32 A per phase (230 x 3 x 32 = 22,080). would this cabling and circuit breaker be sufficient to supply 2 u...
by coulomb
Mon, 26 Aug 2019, 12:43
Forum: Nissan Leaf
Topic: Home charging
Replies: 24
Views: 588

Re: Home charging

Richo wrote:
Mon, 26 Aug 2019, 12:33
Still the funny looks I'd get if I said I charge at 15kph.
I like how the latest ultra rapid chargers can charge at faster than the speed of sound :shock:

Edit: there has to be a joke in there somewhere about the sonic boom...
by coulomb
Mon, 26 Aug 2019, 11:16
Forum: Nissan Leaf
Topic: Home charging
Replies: 24
Views: 588

Re: Home charging

Just bought a new leaf! Congratulations! And welcome to the forum. 1. Do i need a faster charger than using a 10amp 240V solution? The car will mostly be driven <50km/day and occasionally 140Km. I'm guessing not but thought I't see what others think? It's a personal preference issue. Some say that ...
by coulomb
Sat, 24 Aug 2019, 15:48
Forum: Charging Infrastructure
Topic: 3 phase outlet, what is suitable for EV charging?
Replies: 16
Views: 396

Re: 3 phase outlet, what is suitable for EV charging?

I can't read anything on the transformer name plate... Wow. That looks (to my amateur eye) to be at least a 100 kVA transformer. Somewhat overkill, I think, but it's probably the smallest that the utility company deals with. The circuit breaker and cable I'd be most interested in using is a 3 phase...
by coulomb
Wed, 21 Aug 2019, 20:09
Forum: Nissan Leaf
Topic: 2nd Hand LEAF
Replies: 39
Views: 6532

Re: 2nd Hand LEAF

Wow, seems there is great variability in the packs, are people retrofitting them themselves or are these just various Nissan factory options at the time of purchase? The Canary/Wolf/Lizard packs are all Nissan factory supplied, not options. Nissan just found chemistries that were better at heat tol...
by coulomb
Wed, 21 Aug 2019, 19:41
Forum: Other
Topic: e-nv200
Replies: 8
Views: 1588

Re: e-nv200

... nobody has yet hacked the firmware ... anyone aware of anything different ? ... answer is now yes. https://www.youtube.com/watch?v=yd3uvtlamjY Heh. You have to admire those guys that can hack firmware ;) . He made it sounds pretty easy, too. Something like "Yeah, yesterday I had to hack it a bi...
by coulomb
Wed, 21 Aug 2019, 08:38
Forum: Nissan Leaf
Topic: 2nd Hand LEAF
Replies: 39
Views: 6532

Re: 2nd Hand LEAF

Seems good. This would be a "Wolf" pack (per this US centric but good Used Leaf post ), which is better than the original battery, but not as good as the "Lizard" pack. Edit: and it looks like there is $500-1000 worth of cables and adapters in the boot; ask if that's included. Edit 2: however, it's ...
by coulomb
Tue, 20 Aug 2019, 21:10
Forum: Nissan Leaf
Topic: Climate control mod to turn off heater
Replies: 4
Views: 173

Re: Climate control mod to turn off heater

out of curoisity, does the car throw an error code if you physically disconnect the heater element? It would seem so. From the Method 1 post: "Caution: You should avoid leaving the connection open or shorted out while the car is turned on. This will cause NO damage but it will log an error (DTC cod...
by coulomb
Mon, 19 Aug 2019, 18:36
Forum: Renewable Energy and Storage (Non-EV)
Topic: PIP-5048GE, PIP-5048GK and PIP-5048MG inverters (with unsafe SCC)
Replies: 97
Views: 6787

Re: PIP-5048GE, PIP-5048GK and PIP-5048MG inverters (with unsafe SCC)

What do you recommend as an appropriate battery settings for a VRLA 24v battery set-up because I feel that "back to battery" at 27v may be too low? Settings 12 and 13 are about "rescuing" the battery when it gets quite low in SOC. So setting 13 is supposed to be when the battery is back from that s...
by coulomb
Mon, 19 Aug 2019, 09:00
Forum: Nissan Leaf
Topic: Climate control mod to turn off heater
Replies: 4
Views: 173

Climate control mod to turn off heater

One of the niggles with the early Leafs is there is no separate button to turn off the heater. So it's a hassle to just get the fan circulating air, without using main battery energy to produce heat (and it's a resistive heater, not a heat pump, in the early models). Weber kindly pointed me to this ...
by coulomb
Sat, 17 Aug 2019, 21:35
Forum: For Sale/Wanted
Topic: Bushbus and my gumtree stuff around. Bushbus needs cells
Replies: 16
Views: 424

Re: Bushbus and my gumtree stuff around. Bushbus needs cells

Bushbus wrote:
Sat, 17 Aug 2019, 20:37
they seem stuck in my outbox and not sent
It's a quirk of this forum software. Messages stay in your out box until the recipient reads them. That way you can tell if someone has read the message or not. It just looks like it's not sent.
by coulomb
Sat, 17 Aug 2019, 19:48
Forum: Renewable Energy and Storage (Non-EV)
Topic: PIP-5048GE, PIP-5048GK and PIP-5048MG inverters (with unsafe SCC)
Replies: 97
Views: 6787

Re: PIP-5048GE, PIP-5048GK and PIP-5048MG inverters (with unsafe SCC)

My GK series has a settings called battery discharge voltage, mine is at 27v and I have noticed that the inverter will switch to battery once it gets to 27v. Is this a normal behaviour? What is the setting number or abbreviation? It it's setting 13, this is usually called the "back to battery" volt...
by coulomb
Fri, 16 Aug 2019, 07:07
Forum: Renewable Energy and Storage (Non-EV)
Topic: PIP-4048MS and PIP-5048MS inverters
Replies: 2726
Views: 443024

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

cry my eyes out? :| that fan is driving me crazy Perhaps you should work your way through this section of the index to this topic (first post). But don't skip the "Original fans put back" post. If your inverter really doesn't have speed control of the fans, then you should not get the problem with ...
by coulomb
Thu, 15 Aug 2019, 20:53
Forum: Renewable Energy and Storage (Non-EV)
Topic: PIP-4048MS and PIP-5048MS inverters
Replies: 2726
Views: 443024

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

Another “new” user here Welcome. I’m curious whether anybody tried the firmware with the kettle compensation on the PIP-5048MSE yet. I have the Axpert VM5000-48 (note not the VM II model) currently on firmware 20.13. Ah. I see I need to add another exclusion to my " Can I update my firmware " page....
by coulomb
Wed, 14 Aug 2019, 07:28
Forum: Renewable Energy and Storage (Non-EV)
Topic: PIP-5048GE, PIP-5048GK and PIP-5048MG inverters (with unsafe SCC)
Replies: 97
Views: 6787

Re: PIP-5048GE, PIP-5048GK and PIP-5048MG inverters (with unsafe SCC)

... screenshot at 6 but there was still sunlight... I note that Ojeysky is in Spain [ edit: actually, Nigeria, see next post ], and August in Spain corresponds roughly to February in Launceston. For the little it's worth, my panels went from 3 A of battery-side output to 2 A at about 4:30 pm, and 2...
by coulomb
Tue, 13 Aug 2019, 14:40
Forum: Renewable Energy and Storage (Non-EV)
Topic: PIP-5048GE, PIP-5048GK and PIP-5048MG inverters (with unsafe SCC)
Replies: 97
Views: 6787

Re: PIP-5048GE, PIP-5048GK and PIP-5048MG inverters (with unsafe SCC)

When I loose mppt at 5pm the system just supply power to the household from the battery. Ah, I misunderstood, sorry. I thought you lost your loads at 5pm. I have no experience with the high voltage MPPTs. Perhaps other owners can post what voltage or time their MPPTs switch off. I agree that since ...
by coulomb
Tue, 13 Aug 2019, 14:29
Forum: Renewable Energy and Storage (Non-EV)
Topic: PIP-5048GE, PIP-5048GK and PIP-5048MG inverters (with unsafe SCC)
Replies: 97
Views: 6787

Re: PIP-5048GE, PIP-5048GK and PIP-5048MG inverters (with unsafe SCC)

From the above are you suggesting that equalization should not be done with AGM/VRLA batteries? Pretty much. I can see some value in a very gentle equalisation, but just one or two tenths of a volt over the normal bulk/absorb voltage. You want to stay away from the gassing voltage of 14.4 x 4 = 57....
by coulomb
Tue, 13 Aug 2019, 14:23
Forum: Renewable Energy and Storage (Non-EV)
Topic: PIP-5048GE, PIP-5048GK and PIP-5048MG inverters (with unsafe SCC)
Replies: 97
Views: 6787

Re: PIP-5048GE, PIP-5048GK and PIP-5048MG inverters (with unsafe SCC)

do you see any issue with the battery if its already charged up and still receiving 55.2V Once it's fully charged, then leaving it at 55.2 V is just going to slightly shorten its life, while not providing any more energy. You talk as though it doesn't start the day in the bulk charge stage. If that...