I have a solar system on my house, and have seen my "240" volt circuit
jump as high as 245 when the solar system is adding 10 kw flowing back
into the grid, never had an issue charging my Nissan Leaf at that
slightly over spec range.
I read somewhere that the national line voltage limits are 230V + 10% or
- 6% (253.3V-216.2V).
Jay
On 9/4/24 01:23, Rush via EV wrote:
The J1772 Spec from the 2017 SAE Standard states -
Table 9 - AC charging electrical ratings (North America)
AC Level 2 208 to 240 V AC, 1-phase ≤ 80 A Per NEC 625
So your 245VAC may not be safe for some EV's
Best,
Rush Dougherty
TucsonEV
www.TucsonEV.com
-----Original Message-----
From: EV <ev-boun...@lists.evdl.org> On Behalf Of Cor van de Water via EV
Sent: Tuesday, September 3, 2024 6:24 PM
To: Electric Vehicle Discussion List <ev@lists.evdl.org>
Cc: Cor van de Water <cor.vandewa...@gmail.com>
Subject: Re: [EVDL] Are you NACS-charging a non-Tesla
So, best to use a little step-down transformer on your TeslaTap... I have a "dry
type" 240V to 32V 1kVA transformer and I wire the secondary in series with
the primary so that when putting 277V on the series connection, it drops 32V
and delivers a safe 245V from the primary winding.
On Tue, Sep 3, 2024 at 5:55 PM (-Phil-) <p...@ingineerix.com> wrote:
Yes, I personally witnessed this happen at a Casino in Reno. Many Tesla
destination chargers are wired to 277VAC.
On Tue, Sep 3, 2024 at 5:31 PM Cor van de Water via EV <ev@lists.evdl.org>
wrote:
The only concern I would have with using a TeslaTap on an unknown
destination charger is that you are not guaranteed that the charger
won't damage your non-Tesla EV.
Because the Tesla charger is specifically specified to allow anything
between 100-277V so, while not common, some electrician may use a
commercial site's 277V parking lot lighting connection to wire up a
destination charger, making it very dangerous for any non-Tesla EV to
plug in...
On Tue, Sep 3, 2024 at 2:15 PM Rush via EV <ev@lists.evdl.org> wrote:
There are currently lots of versions of the 'teslatap'. It is just
an adapter that changes one type of connection to another, Tesla
inlet to J1772 plug. There are no resistors, diodes, PCB's or any
electronic components in it. That is because the J1772 L1 and L2
protocols are used by Tesla and all the other J1772 EV's
Years ago, in 2016, I tried to produce an injection molded Tesla to
J1772 Adapter but found it way beyond my financial means. I did
learn how the Tesla plug/inlet was able to accept both 120vac and
HVDC using the same pin connector. Tesla uses BalSeal type coil
springs in adjacent configurations to transfer the current from
male to female connector so that there are lots of contact points
for current transfer whereas the J1772 connector uses just a simple
pin connector so that there are only 4 contact points for current flow.
Best,
Rush Dougherty
TucsonEV
www.TucsonEV.com
-----Original Message-----
From: EV <ev-boun...@lists.evdl.org> On Behalf Of Lawrence Rhodes
via EV
Sent: Tuesday, September 3, 2024 8:37 AM
To: ev@lists.evdl.org
Cc: Lawrence Rhodes <primobass...@sbcglobal.net>
Subject: Re: [EVDL] Are you NACS-charging a non-Tesla
I have used a TeslaTap at destination chargers for years, on a Leaf.
Lawrence
Rhodes
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