Henley blocks in series

[Tim+]

Okay, this is probably a terrible idea but just thinking aloud really.

We now have a home battery and an EV. The inverter system for the battery
has a CT clamp that currently detects all consumption by the house and
determines how much comes from the battery or grid etc.

As is common with these systems when you charge an EV at night say, one is
apt to find one’s home battery has fully discharged trying to charge the EV
which can be an issue if you were wanting to use your battery to power your
house in the morning on cheap rate electricity stored overnight.

The “simple” solution that I read a lot about it to position the clamp so
that it’s only monitoring in-house use, not power drawn by the EV charger.
Easier said than done in my case.

My power lead from my meter goes into one Henley block where it splits into
three. One wire for the domestic consumer unit, one wire for a mini
consumer unit for the EV and the third to a consumer unit for the inverter
& battery.

The clamp can only be fitted around one cable. It’s too small to squeeze
two cables through.

So, if it isn’t shockingly bad practice, could one fit one Henley block to
divide the power supply into two, one of the legs going to the EV charger
and the second leg (with the CT clamp), going to a second Henley block
supplying the domestic CU and the inverter/battery CU? Effectively the
house and inverter/battery will now be getting power through two Henley
blocks in series.

I’m sure that there are other solutions involving home automation and some
software jiggery pokery but I like the idea of a solution that will simply
“blind” the CT clamp to the demands of the EV charger.

Tim


--
Please don't feed the trolls

[Chris Green]

You can't get more electricity by rewiring! So, if you don't have
enough electricity to charge the car's battery there's no way to
adjust things so that there's power for breakfast etc. If you simply
don't charge the car then you may have enough for breakfast! :-)

--
Chris Green
·

[Tim+]

I don’t think you’ve understood. This is nothing to do with getting more
power. It’s about preventing the home battery attempting to charge my EV
when it’s plugged in. It’s 9.5 kWhr capacity is a lot more useful as a
supply of cheap rate electricity to the house during the day than pissing
into a large EV battery (that would normally get charged on cheap rate
electricity.

I’m not attempting to live off-grid, just to manage my power storage
better.

[Frank]

It's possible to charge the battery (5kW here) and the EV (7.2kW here)
at the same time so both will be fully charged and the battery will have
more than enough power to cook the full English.

The problem described is that if the battery isn't being charged while
the EV is calling for a charge then the battery will discharge into the
EV. The trick is to stop that happening. One way is to charge the
battery at the same time as the EV, Home Assistant offers other options.

--
Frank

[John J]

I think you're probably describing a Sunsynk inverter & battery installation. There's a Facebook group for Sunsynk inverter owners which might be a useful source of information in resolving your problem. As long as you have single means of turning off power (isolation) from the meter to your premises (say with a 100A Wylex DP switch) I can't see a problem in what you're proposing although it might be preferable to combine the inverter mains connection and household circuit into one larger consumer unit. Setting up the timers deciding what gets charged and when in the Sunsynk is reputedly tricky but it's a topic which regularly gets discussed and I'm sure one of their gurus will oblige

[Tim+]

A bigger better consumer unit would solve a lot of problems but I’m not
gonna go there. ;-)

I could set timers every time I charge but that’s a faff. Seems simpler
just to make the EV draw “invisible” to the inverter.

[Theo]

Tim+ <tim.d...@gmail.com> wrote:
> So, if it isn’t shockingly bad practice, could one fit one Henley block to
> divide the power supply into two, one of the legs going to the EV charger
> and the second leg (with the CT clamp), going to a second Henley block
> supplying the domestic CU and the inverter/battery CU? Effectively the
> house and inverter/battery will now be getting power through two Henley
> blocks in series.

IANAElectrician, but I can't see why not. If this is all post-meter (I
assume it must be), and the Henley block is rated for 100A (or whatever your
supply is), then having a split supply like that seems ok. There will be a
bit of additional resistance from each Henley block which I'm sure it's
possible to calculate, but assuming that voltage drop / heating is ok then
it seems fine.

Do you have a post-meter isolator? If not you could fit a 4 pole
isolator:
https://www.electricpoint.com/wylex-rec4-four-pole-isolator-switch-100a-insulated-enclosure.html

which would split the line into 3 separate outputs and also act as an L+N
isolator. Then downstream a Henley block from one of those.

Theo

[Tim+]

Sadly we don’t have an isolator and things are already rather busy with
three consumer units etc. I’m not sure there’s room to fit one now without
major rejigging. Must have a closer look.

We haven’t paid for our installation yet so it may be possible to get the
sparky back to fit another Henley block and/or an isolator if there’s room.

[Chris Green]

Tim+ <tim.d...@gmail.com> wrote:
>
> A bigger better consumer unit would solve a lot of problems but I’m not
> gonna go there. ;-)
>
> I could set timers every time I charge but that’s a faff. Seems simpler
> just to make the EV draw “invisible” to the inverter.
>

I still fail to see how adding more junctions to the wiring can change
whether the inverter 'sees' the EV. That was why I made my original
comment. To actually change what 'sees' what you'll have to add some
switching or, maybe, move some connections from one side of an
existing switch to the other.

--
Chris Green
·

[Tim+]

Chris Green <c...@isbd.net> wrote:
> Tim+ <tim.d...@gmail.com> wrote:
>>
>> A bigger better consumer unit would solve a lot of problems but I’m not
>> gonna go there. ;-)
>>
>> I could set timers every time I charge but that’s a faff. Seems simpler
>> just to make the EV draw “invisible” to the inverter.
>>
> I still fail to see how adding more junctions to the wiring can change
> whether the inverter 'sees' the EV.

Simple. The inverter “sees” demand for power by using a CT clamp on the
cable that currently supplies all three consumer units.

By splitting off the supply to the EV charger CU after the meter but
*before* the CT clamp, the inverter won’t see that power draw. It will now
only detect power drawn by everything in the house, but not the EV charger.

> That was why I made my original
> comment. To actually change what 'sees' what you'll have to add some
> switching or, maybe, move some connections from one side of an
> existing switch to the other.
>

No switches involved, just changing the position of the CT clamp and
wiring.

[Sam Parker]

><><>+1(601)721-8695 Buy Online DMT vape by psychsdistro

+1 (601) 721-8695
sa...@psychdistro.com
7777 W 38th Ave A104 Wheat Ridge CO 80033 United States

The mystical and mind-expanding world of psychedelics. Psychedelic mushrooms, often referred to as magic mushrooms, have gained popularity for their potential to offer profound experiences and insights. If you're looking to embark on a journey of self-discovery and exploration, you can now buy online mushroom products from PsychsDistro. In this article, we will delve into the fascinating world of psychedelics, explore the offerings of PsychsDistro, and answer some common questions about these mystical fungi.

Psychedelic mushrooms, or magic mushrooms, are fungi that contain psychoactive compounds such as psilocybin and psilocin. These compounds can induce altered states of consciousness, leading to unique and often transformative experiences. People have used these mushrooms for centuries in various cultural and spiritual contexts.

PsychsDistro is a reputable online retailer that specializes in providing high-quality psychedelic mushroom products to enthusiasts and individuals seeking therapeutic benefits. They offer a wide range of products to cater to different preferences and needs.

Mind-Altering Décor
Psychedelic home décor transforms your living space into a visually stimulating environment. Think blacklight posters, trippy tapestries, and glow-in-the-dark accents that transport you to otherworldly realms.

Buy Psychedelics +1 (601) 721-8695
Buy Mushroom +1 (601) 721-8695
Buy Mushrooms +1 (601) 721-8695
Buy LSD +1 (601) 721-8695
Buy DMT +1 (601) 721-8695
Buy Benzos +1 (601) 721-8695
Buy Xanax +1 (601) 721-8695
Buy Adderall +1 (601) 721-8695
Buy DMT vape +1 (601) 721-8695
Buy DMT Cart +1 (601) 721-8695
Buy Alprazolam +1 (601) 721-8695
Buy Bromazolam +1 (601) 721-8695
Buy Party favors +1 (601) 721-8695
Buy MDMA +1 (601) 721-8695
Buy Molly +1 (601) 721-8695
Buy Ecstasy +1 (601) 721-8695
Buy Ketamine +1 (601) 721-8695
Buy Blow +1 (601) 721-8695
Buy Coke +1 (601) 721-8695
Buy Cocaine +1 (601) 721-8695
Buy Farmapram +1 (601) 721-8695
Buy Penis envys +1 (601) 721-8695
Buy Mushroom Chocolate +1 (601) 721-8695

Buy Online Psychedelics +1 (601) 721-8695
Buy Online Mushroom +1 (601) 721-8695
Buy Online Mushrooms +1 (601) 721-8695
Buy Online LSD +1 (601) 721-8695
Buy Online DMT +1 (601) 721-8695
Buy Online Benzos +1 (601) 721-8695
Buy Online Xanax +1 (601) 721-8695
Buy Online Adderall +1 (601) 721-8695
Buy Online DMT vape +1 (601) 721-8695
Buy Online DMT Cart +1 (601) 721-8695
Buy Online Alprazolam +1 (601) 721-8695
Buy Online Bromazolam +1 (601) 721-8695
Buy Online Party favors +1 (601) 721-8695
Buy Online MDMA +1 (601) 721-8695
Buy Online Molly +1 (601) 721-8695
Buy Online Ecstasy +1 (601) 721-8695
Buy Online Ketamine +1 (601) 721-8695
Buy Online Blow +1 (601) 721-8695
Buy Online Coke +1 (601) 721-8695
Buy Online Cocaine +1 (601) 721-8695
Buy Online Farmapram +1 (601) 721-8695
Buy Online Penis envys +1 (601) 721-8695
Buy Online Mushroom Chocolate +1 (601) 721-8695

Psychedelics For Sale
Mushroom For Sale
Mushrooms For Sale
LSD For Sale
DMT For Sale
Benzos For Sale
Xanax For Sale
Adderall For Sale
DMT vape For Sale
DMT Cart For Sale
Alprazolam For Sale
Bromazolam For Sale
Party favor is For Sale
MDMA For Sale
Molly For Sale
Ecstasy For Sale
Ketamine For Sale
Blow For Sale
CokeFor Sale
Cocaine
Farmapram
Penis envys
Mushroom Chocolate

Consciousness-Expanding Tools
These products range from meditation aids like singing bowls to visionary plants used in shamanic rituals. They're designed to facilitate personal growth and spiritual exploration.

Why Buy Trippy Stuff Online?
The online marketplace offers unparalleled convenience when it comes to purchasing trippy products. You can browse an extensive range of items, read reviews, and find unique pieces that may not be available locally.

https://psychsdistro.com/
https://psychsdistro.com/shop/
https://psychsdistro.com/contact/
https://psychsdistro.com/product/buy-5mg-blue-bromazolam-bars-online/
https://psychsdistro.com/product/buy-5mg-green-bromazolam-bars-online/
https://psychsdistro.com/product/buy-adderall-ir-30mg-online/
https://psychsdistro.com/product/buy-coke-fish-scale-online/

+1 (601) 721-8695
sa...@psychdistro.com
7777 W 38th Ave A104 Wheat Ridge CO 80033 United States

[Chris Green]

There is a switch, the inverter on/off switch which is controlled by
the current detecting clamp. You're doing what I meant by "move some

connections from one side of an existing switch to the other".

--
Chris Green
·

[Brian Gaff]

Maybe his best bet is to have breakfast early during the cheap rate from the
grid. I think he just wants to not allow current back out of his battery to
his ev, but as you observe, the power has to come from somewhere, and if its
not the battery then its the grid and only he can tell which is the
cheapest. The problem is that to recharge the battery, either the ev or the
other battery, he has to do it outside the cheap rate no matter what unless
there is an accelerated charging mode its intelligent to use during the
cheap rate.
Brian

--

--:
This newsgroup posting comes to you directly from...
The Sofa of Brian Gaff...
bri...@blueyonder.co.uk
Blind user, so no pictures please
Note this Signature is meaningless.!
"Chris Green" <c...@isbd.net> wrote in message
news:vrdruj-f...@esprimo.zbmc.eu...

[tim+]

Chris Green <c...@isbd.net> Wrote in

> There is a switch, the inverter on/off switch which is controlled bythe current detecting clamp. You're doing what I meant by "move someconnections from one side of an existing switch to the other".-- Chris Green·

I can't decide whether you're being deliberately obtuse or I'm
just not explaining it clearly enough.

Most folk (like no-one) calls a hybrid inverter a "switch".

Maybe this will help (although I'm not holding my breath).

https://photos.app.goo.gl/P3f68KVJNr2dgz6a7

Tim

--

[Chris Green]

The inverter is either powering the car battery or it's powering your
breakfast toast etc. It is thus being switched from powering one or

[Theo]

The load is not being switched, it's pumping energy into the system it's
connected to. That connection includes the car, the toaster, the rest of
the world via the grid - it doesn't care, all those loads are wired in
parallel, so any time it runs it powers all of them. Some of that power
will be consumed by the toaster or the car - what flows past the meter
counts as 'export'.

The switching happens when the inverter senses the current taken by the
'house' and decides to throttle back its output if the 'house' isn't taking
enough, because export is a worse deal than saving the energy to use
later. By moving the EV from inside the 'house' to the 'grid' side of the
current transformer, the inverter will only power the EV when it decides to
export to the grid. Aside from metering, from the inverter's point of view
the EV could be on somebody else's charger down the street - it's all the
same to the it.

Theo

[Tim+]

It’s not being “switched” to anything. When the inverter is outputting
power it has no control at all where that power goes. What’s changing is
the ability of the inverter to detect the draw from the EV.

Clearly you’re just being obtuse.

[Chris Green]

" The load is not being switched,....", "The switching happens when
....", I rest my case! :-)

--
Chris Green
·

[Theo]

Chris Green <c...@isbd.net> wrote:

> Theo <theom...@chiark.greenend.org.uk> wrote:
> >
> > The load is not being switched, it's pumping energy into the system it's
> > connected to. That connection includes the car, the toaster, the rest of
> > the world via the grid - it doesn't care, all those loads are wired in
> > parallel, so any time it runs it powers all of them. Some of that power
> > will be consumed by the toaster or the car - what flows past the meter
> > counts as 'export'.
> >
> > The switching happens when the inverter senses the current taken by the
> > 'house' and decides to throttle back its output if the 'house' isn't taking
> > enough, because export is a worse deal than saving the energy to use
> > later. By moving the EV from inside the 'house' to the 'grid' side of the
> > current transformer, the inverter will only power the EV when it decides to
> > export to the grid. Aside from metering, from the inverter's point of view
> > the EV could be on somebody else's charger down the street - it's all the
> > same to the it.
> >
> > Theo
>
> " The load is not being switched,....", "The switching happens when
> ....", I rest my case! :-)

The load is not being switched, the *generation* is being switched.
The control loop has a sensor (the current transformer) and a decision to
turn the generation on and off.

Of course loads like the toaster and the car come and go, that's what loads
do. They are not being controlled in any way by this circuit.

Theo

[Chris Green]

I didn't say anything about what was being switched, I just said
*something* needs to be switched, which it does.

Admittedly I think we're arguing semantics rather than anything useful
now. I don't think we really disagree about what's needed/happening.

--
Chris Green
·