krox
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Location: Ukraine

Re: Charging on 110V - what goes where?

Tue Apr 11, 2017 12:49 pm

What is the difference between the US and European charges (3.3 kW) that come with the car? What is the catalog number for European charging?

arnis
Posts: 682
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Delivery Date: 23 Jul 2014
Leaf Number: 015896
Location: Estonia, Europe

Re: Charging on 110V - what goes where?

Wed Apr 12, 2017 1:21 pm

EU EVSE comes with Schuko plug and draws 10A, at 230V, so 2300W.
US EVSE comes with NEMA plug and draws 12A (AFAIK). At 120V. But actually can accept 230V if you
either cut the plug off.
They will not draw full 16A. So no 3.3kW


Interesting, is there a jumper inside that specifies current.Sad that EVSE can't be opened.
Short range EVs <30kWh -- Medium range: 30-60kWh -- Long range: >60kWh
Charging: Trickle <3kW -- Normal 3-22kW -- Fast 50-100kW -- Supercharging >100kW

RonDawg
Posts: 2554
Joined: Sat Jan 12, 2013 3:46 am
Delivery Date: 11 Jan 2013
Leaf Number: 027089
Location: SoCal

Re: Charging on 110V - what goes where?

Thu Apr 13, 2017 2:55 pm

arnis wrote:EU EVSE comes with Schuko plug and draws 10A, at 230V, so 2300W.
US EVSE comes with NEMA plug and draws 12A (AFAIK). At 120V. But actually can accept 230V if you
either cut the plug off.

They will not draw full 16A. So no 3.3kW.


NO! It has been mentioned numerous times in this forum that the North American-spec EVSE is NOT dual-voltage capable from the factory! It must be modified in order to accept more than 120 volts.

So many North American-spec Nissan OEM EVSE's have been fried from people "cutting the plug off" and putting a 240 volt one on that Nissan USA (and presumably Nissan Canada) will not warranty an inoperative L1 EVSE without taking it apart first and looking for telltale signs of excessive voltage.

EVSE Upgrade has shown that after proper modification, the Nissan OEM EVSE will draw up to 16 amps at 240 volts, and ones from certain model years can even draw 20 amps.

As far as plugs are concerned, I would imagine the factory EVSE for the UK/Ireland market Leafs would use the UK-specific "Type G" plug rather than a Schuko (and yes the UK is still part of the EU, at least for a couple more years).
Blue Ocean 2012 Leaf SV, lost that 1st bar on 11/21/2015 at 26,435 miles.
Lease returned on 12/23/2015. Final LeafStat figures: 225 Gids, 17.44 kWH, SOC 91.89%, SOH 82.36%, 69.49% HX, 54.57 Ahr, battery temp 61.8 F
Now driving a 2015 VW eGolf SEL

RonDawg
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Location: SoCal

Re: Charging on 110V - what goes where?

Thu Apr 13, 2017 3:16 pm

jjeff wrote:
arnis wrote:New connection from main panel, one wire from L1 and second from L2. And a breaker too (or two breakers as both are live?)
Where is L3 guys, you can't have L1 and L2 without L3 :lol:

A 240v breaker is a single breaker that trips both hots at once, just tripping one would be a safety issue and produce only partial power.


For arnis' benefit, this is what a household 240 volt breaker looks like in the US (not sure about commercial setups):

Image

Note how the two switch levers are conjoined, so it can only operate as both off or both on, never one off and one on simultaneously.

This is what a typical breaker panel in a US home looks like (as long as it's recent enough to have breakers from original construction, or had an old-style fuse panel replaced with breakers), showing both 120 volt and 240 volt circuits:

Image
Blue Ocean 2012 Leaf SV, lost that 1st bar on 11/21/2015 at 26,435 miles.
Lease returned on 12/23/2015. Final LeafStat figures: 225 Gids, 17.44 kWH, SOC 91.89%, SOH 82.36%, 69.49% HX, 54.57 Ahr, battery temp 61.8 F
Now driving a 2015 VW eGolf SEL

arnis
Posts: 682
Joined: Sat Jan 23, 2016 3:21 pm
Delivery Date: 23 Jul 2014
Leaf Number: 015896
Location: Estonia, Europe

Re: Charging on 110V - what goes where?

Fri Apr 14, 2017 3:26 am

Understood, so the breaker design of having many knobs joined is the same as in EU.
We have 3-phase power and have the same think used sometimes (as some houses
do get 3-phase but do not have any 3 phase motors, therefore killing one of the phases
separately is safe, some devices, like cookstove, lose some functionality, still safe to use)
Image

So if US Nissan OEM EVSE needs internal modifications, is it worth the hassle at all?
If parts must be changed/soldered/bought, it takes lots of resources to modify. And how
can current limit be changed? Isn't it software pre-coded? Or just "resistor-coded" :P
Short range EVs <30kWh -- Medium range: 30-60kWh -- Long range: >60kWh
Charging: Trickle <3kW -- Normal 3-22kW -- Fast 50-100kW -- Supercharging >100kW

jjeff
Posts: 1191
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Delivery Date: 13 Jul 2014
Leaf Number: 422121
Location: MSP MN

Re: Charging on 110V - what goes where?

Fri Apr 14, 2017 3:58 am

arnis wrote:So if US Nissan OEM EVSE needs internal modifications, is it worth the hassle at all?
If parts must be changed/soldered/bought, it takes lots of resources to modify. And how
can current limit be changed? Isn't it software pre-coded? Or just "resistor-coded" :P

Modifying our OEM EVSE to 240v the way EVSEupgrade does isn't the simplest to do. They not only replace some of the internal parts to be able to accept 240v inside the OEM EVSE but also (I believe) reflash the prom to be able to have it output up to 20a(or 16a) and be adjustable down to 6a. There are threads here and elsewhere on the internet with various DIY options to use 240v with the OEM Leaf charger but some then lose the ability to charge on 120v(making then 240v only so they wouldn't work in our standard household outlet) and some require a special 240v outlet which also has a 120v leg within the plug. I believe all DIY options retain the 13a only operation of our OEM Leaf charger. DIY options cost starts as low as $25 USD, EVSEupgrade.com charges $300 USD for their upgrade which also includes shipping and while much more than $25 it does have several advantages and is the way I chose to go with my OEM EVSE.

Note we also have 3-phase breakers like in your photo but again are only used in commercial buildings and no N. American L2 EVSE uses 3 hot legs(at least one I've seen) not sure about L3 EVSEs as they are really only used commercially(although I believe a few around here may have smaller L3 units they may use in a commercial setting).
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GlennD
Forum Supporter
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Leaf Number: 410357
Location: Anaheim

Re: Charging on 110V - what goes where?

Fri Apr 14, 2017 10:27 am

120 VAC was originally 110VAC, then 115VAC and now 120VAC in the US. Some still refer it as 110V but in reality it is now 120V. Other countries use different voltages but in the USA over the years they slowly boosted the voltage. Excluding voltage drop the real voltage is 120VAC. Many homes have split 120V so across both wingdings you get 240VAC. From either one to the neutral you get 120VAC and across both you get 240VAC.
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