Home CHAdeMO
 

I was looking around for fast charger options. So far it looks like the home CHAdeMO units are limited to 40 amps of 240v single phase.
I am putting a 100 amp sub panel in the garage my self, probably on 2ga copper so I can run my miller model 250 welder at full power, which is around 340 amps for welding aluminum. I don't use the welder every day but I will be using the car charger circuit every day, maybe even multiple times a day.

Here is one I found:
https://www.evseadapters.com/product...-quick-charger

So with the AC 'charger' stations, they take care of the switching and making sure that there is actually a charger on the other end, but you still need to take the AC and make DC (with a charger) for your batteries - right? And take care of the voltage regulation, and when the batteries are full.

Alternately, the 'DC' charger stations put out a voltage and current as controlled by the vehicle (via communications) and terminate the charge when the vehicle says so?

My battery charger won't do anywhere near that amount of power, so I have not investigated a whole lot as yet.

My handy wall chart (old version) lists #2 as 100 amps for a 60C rise. The new chart lists 110 I think. Either way, #2 is good for your 100 amp feed.

The J1722 which is your level 1 and level 2 charger is a fancy extension cord with switch controlled by the vehicle. It sends AC power into the vehicles built in charger.
The CHAdeMO makes DC and sends the appropriate high voltage DC power to the car and it would seem that it sends it pretty much straight to the battery. The vehicle controls the CHAdeMO unit.

Another one, 12kw.
http://www.electway.net/product/12KW...ctric_car.html

A 20kw single phase unit for $7,500
http://store.evtv.me/proddetail.php?prod=20kwchademo

I actually could get 3 phase power if I wanted. My well had a 3 phase pump. The transformers for the well are still on the power pole just have had the 4160v line fuses pulled.
If I ever did get 3 phase power ran to the house I wouldn't want 480v 3 wire, I would get 120/208v 4 wire configuration.

That's half of what the car cost, do you really need to charge that fast?

If the demand is there these units will come down in price.
I would really like to get one, but I also really don't want to spend any where near $3,000 on it.

Cool. Our electrical system only supplies single phase to residential (Canada). There is only 1 feeder coming from the distribution transformer in my area to the house transformer. SaskPower will bring in 3 phase if I pay for extending the other 2 phases to my property, and pay for the three phase transformer, but only if I can get my property re-zoned to commercial.

The electrical inspector tells me that it is illegal for me to 'make' 3 phase out, using a controller, to drive pumps or other loads.

But I can have 600V DC off a solar array on my house, and if I don't grid tie ... I don't even need an ELECTRICAL PERMIT. Anyone can claim to be a solar installer, dig holes in my roof, hook up high voltage DC without being an electrician .... what a system!

I would like to keep it single phase, 240v that can go on a 200 amp service.
Like you said not everyone can get 3 phase as easy as me.

Thingstodo So with the 600vDC you aren't allowed to convert it to 3 phase? Or you are just not allowed to convert single phase grid to 3 phase?

If you don't have 3 phase service there isn't any point in running a 3 phase inverter.

There are single-phase inverters. I have not been impressed by build quality, part selection, or reliability stats. That said, I have not put out the cash to buy one. My 3 phase controllers are re-built industrial models. Plus the one that I got from Paul Holmes.

Most single phase motors are set up with a capacitor start, or some other method to get starting torque. I'd have to remove the start method in order to run low frequency. And the single phase motors, that I have used, do not appear to be designed to run continuously. They overheat and trip on thermal, then need to cool down and be reset. Not a great thing if you are not home all of the time. Worse are the ones that heat up and fail the insulation, then just stop entirely.

A single phase feed into the diode bridge of a 3 phase controller charges up the bus, and I can drive 3 phase motors - that I can get cheap, and that are very robust since they are designed for continuous duty in commercial or industrial settings - with good speed control, decent bearings, etc. I can also run the motors at 250 - 300% current for short periods of time, if I mess up.

Think drill press, table saw, jointer/planer, septic pump, well water pump, domestic water pressure pump in the house.

BUT ... it is not to be. If there is a fire, the default reason seems to be electrical. So if I have 'illegal' stuff in the house - it will be blamed and I won't have any insurance. So I just do vehicle stuff so far ... and maybe play with some stuff outside, not near any trees ;)

As I understand it, I'm not allowed to output 3 phase in a residential dwelling. It is a bit of a gray area whether I am allowed to output 3 phase on a residential property (like a shed)

I have a VFD and 3 phase motor setup for an air compressor, plus the thousand or so at work that I work with.

Sorry. I was not paying attention to who was posting. I think I already knew about the work stuff.

Didn't know about the compressor at home, though.

How does any one get by with a 120v charger?
The 240v evse brick mod is the best mod ever.
I will be very hard pressed to do a better one than that.

I had to give up thinking I could get a CHAdeMO for home when I saw the price.

I find it hard to justify getting the 240v charger for home...

I live 7.5 miles from work. The short drive was killing our cars. Then work put in a charge point at work, so... having only 120 at home is not been an issue, but I can charge at level 2 at work...

I may not be able to charge at work.
At work 120v would be fine since I work 12 to 13 hour shifts for which to recharge from 15 miles of driving would be plenty.
Since I have been welding and plasma cutting and using big air compressors for so long having 240v power in the garage, in addition to the cloths dryers power and 240 to the drive way is normal to me.

I have aquired a single phase powered 10kw CHAdeMO unit.

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Will you be sharing a photo or video of your home charger?

Who made it?

That will come in handy for traveling if you keep it portable. Unlocked 1450 outlets can be found. Make up a long AC extension cord.

I have an unused length of 6/3 with an 8 gauge ground SO cable.
But I think I really only need 6/3 or 6/2 with 8 or 10 gauge ground. This charger should only need 2 hots and a ground.

It's an setec. I'm pretty sure I linked them some where here on this thread.

10 kw at 240V is about 40 amps, right? #6 is more than enough .. as you already knew. I had to look it up on a chart.

You are not using the neutral, so 6/2 would be fine as well. Ground sizing versus conductor sizing ... is more your area than mine. If you are drawing 40A then I think #10 is OK for the ground, even at full current. Again, by my chart.

I'm not conversant enough with our electrical code to quote what the ground cable should be. That said, I observe that many of our ground cables are significantly smaller than the continuous-current carrying conductors.

8 gauge is made to handle 40 amps but not for continuous use. In the US we derate the wire to 80% for continuous use of 20 minutes to 3 hours.
The electrical code definition of "continuous use" varys a lot.

10kw charging anywhere I can get power is going to be tremendous.

Hmm. Our rules are more different than I would have guessed. Link below. Up here #6 is good for 60A continuous at 75C temperature rise

https://www.technicalsafetybc.ca/sit...ampacities.pdf

These are the 2012 rules, I think. Our most recent rules (2016 maybe?) allow for a bit more ampacity than listed ... but they are not available for free online ;)

60 amps on 6 gauge, it's up to the electrical inspector.
Normally it's used for 50 amps max here.
Up to 100 amps for welding circuits.

Looks like it should get here between Nov 30 and Dec 11.
The electrical is all ready to go.
Just put the style of plug I use on it and go.

It's coming from Canada so it will take a stupid amount of time to get here.
Probably won't even get here before December 11.

This is what I got.
https://www.evseadapters.com/product...-quick-charger

But I didn't pay anywhere near MSRP for it.
About 1/3 of MSRP, shipping included.
I figure I will use this a lot more than a new gun or silencer.

US Customs called me about the charger and questioned me.
WTF.
It's probably a good thing I answered my phone or they may have ripped it apart to "look for for drugs" or what ever BS probable cause that they usually come up with to wreck stuff.
This seems to me to be appalling waste of tax payer money.
I have bought stuff from China, Hong Kong or taiwan no problems.
But there is literally tons of phentanal coming over from china every year killing thousands of people.

So this is a fancy adapter for your leaf to the world?

It's a externally controlled high voltage DC power supply.

It will fit any CHAdeMO car or chademo motor cycle. Then if I ever get a tesla or CCS car I can buy the machine car interface cable or just get the CHAdeMO to tesla super charger adaptor.
But teslas already charge at 7.2kw I believe with the internal charger so not much advantage to 10kw charging.
So it will potentially work on any car with rapid DC charing.

I got mine.
It puts out about 7.2kw on a low battery up to about 7.8kw above 3/4 charge.
Very happy.
Too bad I can't use the CHAdeMO and j1772 at the same time. In time perhaps.

https://ecomodder.com/forum/attachme...1&d=1543892746

https://ecomodder.com/forum/attachme...1&d=1543892746

https://ecomodder.com/forum/attachme...1&d=1543892746

It had a 4 prong nema 14-50 plug on the input power cord with the wires pulling out of the back.
I swapped the 14-50 range plug for a 3 prong nema 10-30 dryer plug.
All my dryer, plasma cutter and air compressor plugs are nema 10-30 and my welder uses 3 prong 10-50.

This charger requires 2 hots and a ground.

It charges up to 90% and turns off.

I really like this thing. I am able to keep the batter up on heavy use days.
Used to be on a busy day I wouldrive up to 100 miles, plug the car in with a very low battery and it would have to charge a good portion of the night.
Now I can drive up to 120 miles in a day, the battery will still have some charge left and have it charged back to 90% usually in around an hour.
Or only about 2 hours if the battery is really low.
The charger power peaks at 8.1kw as it approaches 90%.
If the battery voltage is really low, 360 volts, or 20% SOC it's only hitting about 7kw. Because the charger output is limited to 20 amps.

The ultimate power.
Single phase, 208-277v input, 25kw output.
It only needs about 100 amps on 240v power, 2 gauge copper lines would do.

https://www.boschevsolutions.com/cha...s?sku=EL-52240
But it's CSS, not chademo.

I want to see you use this on one of your summer days.

If the battery is hot I'm just going to let it sit.
I had 5 days last sumer where it was too hot to charge IMO.
Then I drove the gasoline powered car.
I'm not that worried about it.
20 amps is less than 1/3C that's almost nothing to these batteries.

Winter kills range but I can drive, charge, drive, charge it as much as I want.
Summer I get way more range but I have to watch battery temp.

I want more.
Going to keep a look out for a 12 or 20kw single phase chademo.
The 10kw chademo I have is kind of obsolete since it charges the leaf at 7 and then 8kw as the pack voltage rises and all the newer cars charge at a rate of at least 6.6kw.
Thats probably why I got it so cheap.
Current and soon to be produced cars are doing 7 to 12kw.
By 2020 most manufacturers should have up to around 18kw built in home charge option.

The 12kw home chademo has a max output of 25 amps so that would charge the leaf at 9 to 10kw.
The 20kw would charge it at 14 to 16kw.

I'm already set for a massive evse. My miller model 250 "welding circuit" is on a 125 amp breaker with 4 gauge wire.
To make it legal for other uses all I would need to do is down size that breaker to an 90 amp.

It's been cold lately, enout to bring the pack temp dow to 3 bars so it would only charge at 12 amps, or about 4.7kw.

How cold are your outside temps? My 2013 Leaf would charge at 6.6 with onboard charger at 3 battery temp bars and outside temps in the teens. The 2012 Leaf I really don't pay attention to charge speeds since I'm not the primary driver




Super cool project, I never expected to see off board chargers for residential EV charging.

I do understand the need for charge speed now that I daily the Dual charger (20KW onboard) Model S, but for whatever reason the 6.6 in my Leaf always seemed like plenty.

I had not driven the leaf for 2 days at that point and left the battery about 40% charged.
It was below freezing during the day and single F at night and it was not in the garage.
Had I been driving, charging and leaving it in the garage it would have been fine and charged at the normal near 8kw rate.

I tried to use my chademo today and it would not interface with the car.
Problem is probably in the plug, at least that's where I will start.