EEVblog 1437 - Zappi 7kW Electric Car Charger TEARDOWN + EXPERIMENT

Ғылым және технология

How does an Electric Car charger work?
A teardown of the Myenergi Zappi 7kW EVSE and experiments demonstrating how the car detection system and charge mode works.
Installation & Testing: • Myenergi Zappi 7kW EV ...
00:00 - Zappi 7kW Single Phase EVSE Charger
02:46 - Type 2 Charging Standards
08:30 - Teardown
17:32 - Power Up
20:56 - Experiments!
Forum: www.eevblog.com/forum/blog/ee...
How PEN Fault detection works: • KNOW HOW: PEN FAULT pr...
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#ElectronicsCreators #ElectricCar #Zappi

Пікірлер: 458

  • @EEVblog
    @EEVblog2 жыл бұрын

    Installation & Testing video is on EEVblog2 here: kzread.info/dash/bejne/d42slpikgtmYcto.html

  • @randomelectronicsanddispla1765
    @randomelectronicsanddispla17652 жыл бұрын

    First step of installing a new charger: void the warranty

  • @Leon-pm6lr

    @Leon-pm6lr

    2 жыл бұрын

    its not a charger.

  • @randomelectronicsanddispla1765

    @randomelectronicsanddispla1765

    2 жыл бұрын

    @@Leon-pm6lr true, neither is your phone charger. The world is full of misnomers.

  • @joblessalex

    @joblessalex

    2 жыл бұрын

    It's made to open to install it, so honestly, probably not!

  • @dapullia

    @dapullia

    2 жыл бұрын

    Seen many of these installed on Artisan Electric channel and they do have to take them apart that way to install and wire them.

  • @--Nath--

    @--Nath--

    2 жыл бұрын

    It isn't wireless charging or a plug in unit - so you need to hook in the mains power to the terminals inside..

  • @xDownSetx
    @xDownSetx2 жыл бұрын

    23:02 Unexpected Final Fantasy victory fanfare

  • @airlink2142

    @airlink2142

    2 жыл бұрын

    *Buster Sword Spin!*

  • @tlhIngan

    @tlhIngan

    2 жыл бұрын

    Yeah, i was just thinking it was some random startup tone then went... wait a minute.... and rewound it about 5 times ot make sure.

  • @AlexKrieger71

    @AlexKrieger71

    2 жыл бұрын

    It's a great little easter egg :)

  • @Petertronic

    @Petertronic

    2 жыл бұрын

    Hope they don't get sued by Square Enix :)

  • @michaelcalvin42

    @michaelcalvin42

    2 жыл бұрын

    As soon as I heard it, I paused the video to see if anyone else had pointed it out.

  • @randycarter2001
    @randycarter20012 жыл бұрын

    The best description for this device is a smart safety switch.

  • @moczikgabor

    @moczikgabor

    2 жыл бұрын

    Pleeeease, stop calling everything smart! It is not smart. It's an automation only, a highly deterministic process. All these "smart home" things, are just remote controlled devices, just happens that the remote control is not an IR remote but a device on an IP network and then it has to be called smart. 🤦🏻‍♂️ 🤦🏻‍♂️🤦🏻‍♂️

  • @randycarter2001

    @randycarter2001

    2 жыл бұрын

    @@moczikgabor When connecting high power cables safety agencies require the power to be removed. (You're supposed to turn off the breaker before you connect or disconnect your motor home.) This thing is smarter than a circuit breaker in that automatically turn off the power. It detects electrical faults, informs the load how much power is available. It is there for safety. I'd admit 'smart' is overused to describe WiFi connected devices.

  • @OneBiOzZ
    @OneBiOzZ2 жыл бұрын

    I really like how that 30A connector has a clear back, you can quickly check that its wired right and that if something goes wrong you can check the wiring easily

  • @UberAlphaSirus

    @UberAlphaSirus

    2 жыл бұрын

    And 95% of the world just think, oooo pretty colours.

  • @andrewcourt5156

    @andrewcourt5156

    2 жыл бұрын

    Yes that style of connector is basically the standard here in New Zealand and Australia, for industrial / high current / single or 3 phase use...they are generally called “56 series” because they are IP 56... They have a threaded collar / ring that mates with the socket and holds the connector & plug firmly connected...

  • @LB-fx1kn

    @LB-fx1kn

    2 жыл бұрын

    @@andrewcourt5156 The plug Dave has is IP66 rated though. The series number is just that I believe. There's many other series available, e.g. 600 series 10A outlets.

  • @Kwaq84

    @Kwaq84

    2 жыл бұрын

    Nah, it's clear so you can see whether it's full of water or have some killer spider beneath.

  • @rivkahlevi6117

    @rivkahlevi6117

    2 жыл бұрын

    Makes me wonder why they don't make all plugs transparent.

  • @jeremysaise
    @jeremysaise2 жыл бұрын

    Cool to see one of my customers products being torn down…. Immediately sent a link to the production engineer I work with :)

  • @ForgottenLore
    @ForgottenLore2 жыл бұрын

    Videos like this helps me to pretend we still have a manufacturing industry in the UK. :)

  • @jaycee1980

    @jaycee1980

    2 жыл бұрын

    designed in the UK perhaps..

  • @jeremysaise

    @jeremysaise

    2 жыл бұрын

    these are very much built in the UK they are expanding rapidly the have moved to a larger temporary facility and are building a custom new facility near Grimsby. You would be surprised how much electronics manufacturing in the UK there is I sell electronics manufacturing equipment here and there are loads of them.

  • @cjmillsnun

    @cjmillsnun

    2 жыл бұрын

    @@jaycee1980 Most definitely assembled in the UK.

  • @JGS123WRPTP

    @JGS123WRPTP

    2 жыл бұрын

    To be fair, If something MUST be high quality it may well be made here. Just another reason why going green is a good thing for the UK economy. Genuinely, this will be good for the uk.

  • @sail4life

    @sail4life

    2 жыл бұрын

    Brexit be damned but I bought one from the Netherlands. Love my Zappi, its awesome to be able to tweak and check everything.

  • @Ave117
    @Ave1172 жыл бұрын

    The Startup Sound of the EVSE is the Final Fantasy Victory Jingle... :D

  • @ThePoxun
    @ThePoxun2 жыл бұрын

    It plays the Final Fantasy victory fanfare... it has my vote!

  • @jeffkubascik7830
    @jeffkubascik78302 жыл бұрын

    Out of curiosity, have you tried removing the diode from your bench-top pilot circuit? I'm really curious if the EVSE's are checking for that today. Back around 2012, I worked as an engineer responsible for the micro-controller code for a residential/commercial EVSE product line. We ran into an issue where someone on KZread showed our device not working with their Nissan Leaf but other competitor EVSE's worked fine. After some investigating, we found out that the pilot diode in the Leaf would fail after some period of time - our theory was due to insufficient transient/surge protection. We discovered that many EVSE's on the market did not check for the diode and therefore worked fine when the Leaf's diode failed. I recall having discussions with the project lead engineer whether we should be doing the pilot diode check (SAE and UL standards did not require it at the time), and decided that it should be there exactly for the same safety reason you described - in case the plug was dropped in a puddle and the resistance on the CP pin happened to be in the range to enable charging. You essentially covered the reasons why EVSE is needed but I wanted to highlight one unique safety issue with EVs, and that is the fact that your vehicle's bodywork is effectively isolated from earth ground by rubber tires. One job of EVSE is to ensure that the body work is never ever ever at any potential other than earth ground. Thank you for the video, really enjoyed it!

  • @thanosprionas6919

    @thanosprionas6919

    2 жыл бұрын

    Diode problem issue. You are right Jeff!

  • @ArtturiSalmela
    @ArtturiSalmela2 жыл бұрын

    The reason why the sticker was like that was an effort to compensate Australia being upside down. Obviously they got something wrong ;)

  • @thokk10289
    @thokk102892 жыл бұрын

    My best guess about the series relay is those output pins are accessable via a finger and that needs to be safe during any single fault. A relay fusing or something like that is not an unreasonable single fault

  • @cfisupply

    @cfisupply

    2 жыл бұрын

    I seem to remember reading somewhere about the different stages of the connection & handshake. One option is one relay activates at one particular stage passing and the other relay connects at the final stage. They could do this instead of using an "and" gate.

  • @straifus3742
    @straifus37422 жыл бұрын

    I get to watch you do the things I would want to do with these gadgets while you teach me the things I want to learn. Thank you! Cheers from the Ouachita mountains.

  • @-yeme-
    @-yeme-2 жыл бұрын

    whoever stuck that Aussie flag on upside down was surely having a joke. also as you probably know, all UK electrical equipment is marked 230V 50Hz despite the supply having always been 240V. the EU standardised on 230V and everyone with 220V or 240V supplies just widened their tolerances rather than change any equipment

  • @jessicav2031
    @jessicav20312 жыл бұрын

    I think the little relay and opto is a zero crossing detector? So they can switch the big relays at the zero crossing.

  • @Smidge204

    @Smidge204

    2 жыл бұрын

    If this is for zero crossing detect, why include the 5V relay? I don't see a reason why you would need or want to switch the line side AC input feeding an opto if all you want is zero-cross detect.

  • @jessicav2031

    @jessicav2031

    2 жыл бұрын

    @@Smidge204 I have no idea. You can see though that the opto is on the switched side, not the control side, and it seems to be connected to the mains line. What else would it do?

  • @EEVblog

    @EEVblog

    2 жыл бұрын

    I'm sure it's doing that somewhere, but that doesn't explain the relay.

  • @eemsg
    @eemsg2 жыл бұрын

    You can tell someone at Myenergi is a JRPG fan. The boot-up sound on the Zappi is the Final Fantasy victory fanfare.

  • @robinrichard6509

    @robinrichard6509

    2 жыл бұрын

    🥳

  • @MCasterAnd
    @MCasterAnd2 жыл бұрын

    Thats an absolutely massive box for such a small amount of circuitry.

  • @volvo09

    @volvo09

    2 жыл бұрын

    Yeah, but it doubles as a cord hanger when unused.

  • @benmodel5745

    @benmodel5745

    2 жыл бұрын

    Might be a bit bigger for the 3 phase version

  • @Gayestskijumpever

    @Gayestskijumpever

    2 жыл бұрын

    true but good for cooling/ air circulation.

  • @EEVblog

    @EEVblog

    2 жыл бұрын

    Yeah but you need cable termination space and also the hanger on the front + cord wrap around.

  • @sciencetestsubject

    @sciencetestsubject

    2 жыл бұрын

    The exact same rear housing is used in the 3 phase models, those boards are completely stuffed. Even the relays are external to the board.

  • @stevenmetcalf4571
    @stevenmetcalf45712 жыл бұрын

    The J1772/Type 1 connector predates the Type 2 connector by about 2 years or so. Its creation can basically be attributed to the California Air Resources Board (aka CARB). Some late 90s/early 2000s EVs like the Ford Ranger EV where already using the the original J1772 standard which was paired with the older "Avcon" connector. CARB wanted something that could handle higher current, as Avcon was limited to around 28A. The Yazaki Corp. of Japan stepped up with their design, the Type 1 connector we know today. CARB mandated that this new upcoming connector be the standard connector for plugin vehicles sold in California. Given that California basically made the EV market in the US, automakers complied and the SAE shortly adopted it as the J1772-2009 standard. Thus Type 1 became the defacto standard in the US, and more broadly North America. Around about the same time that the SAE adopted Type 1, German company Mennekes was proposing their "Type 2" connector to German automakers. They adopted the Type 2 connector and eventually the EU legally mandated it. Some early EVs sold in EU countries where actually equipped with Type 1. "Fun" fact: Since the signaling today is basically still the same, old EVs such as the aforementioned Ford Ranger EV equipped with the Avcon connector can be charged on modern EVSEs with a simple physical adapter. As long as the EVSE doesn't present a pilot signal greater than 28A, it will work fine. Long post... But even cooler is the non-conductive induction paddle charging system used by the GM EV1 in the mid 90s. It was more advanced than the J1772 system we ended up with. It actually had 2-way communication between the car and the charger. The car could communicate back to the charger battery chemistry type, state of charge, etc..

  • @markg735

    @markg735

    2 жыл бұрын

    Why J1772 didn't just have a CAN bus on it is beyond me.

  • @stevenmetcalf4571

    @stevenmetcalf4571

    2 жыл бұрын

    @@markg735 a paper I read some time ago made mention that a design goal of the original J1772 signaling was that it could be implemented cheaply.. i.e. without a microcontroller.

  • @mikescott58
    @mikescott582 жыл бұрын

    Nice video Dave, as always. I've been watching EVSE installs on Jordan's (Artisan Electrics) channel. One feature that I wish we had in the US was the ability to monitor total energy draw and scale the charge rate down to avoid tripping the main breaker. Another thing that you guys got right was to standardize on connector. Here, Tesla uses theirs, Nissan has theirs, and everyone uses J1772.

  • @rud
    @rud2 жыл бұрын

    Can’t wait to see more on eevblog2

  • @ottersdangerden
    @ottersdangerden2 жыл бұрын

    that beep soungs like the battle victory music from final fantasy

  • @Digital-Dan
    @Digital-Dan2 жыл бұрын

    Best description I've seen of what these do is to negotiate the parameters of the charging session, based on the joint capabilities of the vehicle and the power supply. We are indeed weird, bruh!

  • @TradieTrev
    @TradieTrev2 жыл бұрын

    Absolute crack up about the sticker Dave, I totally support you removing it!

  • @tanishqbhaiji103
    @tanishqbhaiji1032 жыл бұрын

    This very exiting, I really wanted to see a tear down of this. Edit : my disappointment is immeasurable.

  • @ElectricGears
    @ElectricGears2 жыл бұрын

    These fancy EVSE boxes are nice but I really think every electric car should have a self-retracting, pull out 15A cord you can just plug into any standard outlet. It's 'technology' perfected by the humble domestic vacuum cleaner decades ago so there is no excuse.

  • @--Nath--

    @--Nath--

    2 жыл бұрын

    But then how can they charge $1000 for a glorified relay (or 3 like this one) and special plug?

  • @benbaselet2026

    @benbaselet2026

    2 жыл бұрын

    Kind of yes... but then again not. With an external unit you can just replace it with a more suitable one or whatever. Having it integrated means you will be lugging around little bit of weight around even if you don't want to. And having an integrated thing repaired at a shop can often cost more than buying a new external one anyways. I like the modularity aspect more than the convenience of integrated. And the integrated one would have to fit all kinds of different country standards and adapted when cars get shipped from country to country etc. If the whole world ran on the same standard for plugs and amps etc. then it would make a bit more sense.

  • @Tore_Lund

    @Tore_Lund

    2 жыл бұрын

    @@benbaselet2026 That is not a valid argument: EVs have unnecessary complicated charging protocols. EVs should only need a 3 phase 32A or bigger male red CEE connector under the filler lid and be compatible with absolutely everything carrying a voltage. The car should naturally be able to work on single phase as well as 3 phase, and charging current is set on the dash before plugging in. The simpler, the more future proof. People have handled AC connectors for a century. This is just a blatant money grab on par with ink cartridges and vacuum cleaner bags! AC is a common good, and monopolizing a shared public funded resource is a crime.

  • @LB-fx1kn

    @LB-fx1kn

    2 жыл бұрын

    @@Tore_Lund All well and good until someone plugs in their car with a 0.75mm2 extension cord and then says it's good for 32A.

  • @CampGareth

    @CampGareth

    2 жыл бұрын

    Cars are often charged in the rain so waterproofing is important, domestic sockets can be waterproofed with boxes but are those boxes foolproof?

  • @Sonic_Shroom
    @Sonic_Shroom2 жыл бұрын

    Neat. Good implementation of KISS.

  • @rodrigovda
    @rodrigovda2 жыл бұрын

    17:38 was that the Final Fantasy victory fanfare?

  • @EEVblog

    @EEVblog

    2 жыл бұрын

    No idea, but everyone is saying that.

  • @amandalang1283

    @amandalang1283

    2 жыл бұрын

    @@EEVblog yes, it's "Victory Theme" Final Fantasy Series by Nobou Uematsu.

  • @BaZe-dk9kh
    @BaZe-dk9kh2 жыл бұрын

    This is very interesting. Thanks 👍

  • @inompsum5007
    @inompsum50072 жыл бұрын

    cool product with nice set of features...

  • @jtveg
    @jtveg2 жыл бұрын

    Thanks for sharing Dave. :)

  • @SupremeRuleroftheWorld
    @SupremeRuleroftheWorld2 жыл бұрын

    i love to see how well it can control (and how fast!) the charge current based on the solar.

  • @dexterdixon2000
    @dexterdixon20002 жыл бұрын

    Is the second relay (in series) for the fault protection? The CT label is a hint...

  • @iosonogerva1989
    @iosonogerva19892 жыл бұрын

    The double relay in series is quite common in industrial safety circuits (the one triggered by the big red mushroom switch). If i recall correctly is even mandatory in the EU Machine regulation. It's done because, if one contactor weld shut, the other trips and open the circuit. I also think that the safety module can also detect in one is faulty and refuse to energize the other one.

  • @andyfraser5876
    @andyfraser58762 жыл бұрын

    I fitted a 3 position switch to the connector on my dumb EVSE's cable to present 3 different resistances to the PP pin in the car. This fools the car into thinking the cable has different current capacity (13A, 20A, 32A) to make best use of our solar. It can even be switched during use.

  • @dubbleUmaster
    @dubbleUmaster2 жыл бұрын

    Thanks, great video. I would like to see Open EVSE videos!

  • @OftenAsked
    @OftenAsked2 жыл бұрын

    Worth noting that EVs also have a Minimum charge current of 6A. So if your solar is exporting less than 6A, you either need to export that "for a pittance" or make up the rest by importing from the grid.

  • @catalinalb1722
    @catalinalb1722 Жыл бұрын

    Great video!

  • @jameshancock
    @jameshancock2 жыл бұрын

    It would be awesome to use the dc pins of the full ccs type 2 and see if you could emulate dc fast charging from LiFePO4 and solar direct with some boost converter or something.

  • @grantrennie
    @grantrennie2 жыл бұрын

    Good to see a bit of UK made equipment going for export 🙂

  • @dorhocyn3
    @dorhocyn32 жыл бұрын

    This solar detector is brilliant…. Are they doing circuit pre-charging to reduce internal relay arcing.

  • @rayceeya8659
    @rayceeya86592 жыл бұрын

    I like the idea of charging a car off of solar, but since you're going from DC to AC back to DC bothers the efficiency geek in me. If only there was a way to bypass the inverter.

  • @DW11111

    @DW11111

    2 жыл бұрын

    You can DIY but it will void your warranty

  • @FrankGennari
    @FrankGennari2 жыл бұрын

    That's interesting. A few years ago I found an EV charger by the side of the road and couldn't figure out what it was at first because it was just a black box with the wires cut off. Mine was completely different inside. It had several different transformers, inductors, fuses, circuit breakers, and some sort of power diodes or switching devices on heat sinks. Maybe it was a DC charger? It was a lot more complex than yours.

  • @WesselLemmer
    @WesselLemmer2 жыл бұрын

    We use the mi energy controllers for water heating with excess solar. They work really well for that.

  • @pietroprestininzi
    @pietroprestininzi2 жыл бұрын

    Great video, as usual.... What is needed if one wants to charge my car in DC directly from a battery storage which in turn is fed by the solar panel? In other words, how do I bypass the inverter?

  • @repatch43
    @repatch432 жыл бұрын

    I personally use the term 'charge point' for those things.

  • @nathantron
    @nathantron2 жыл бұрын

    I'd love to see a heat map of this thing while it's running.

  • @SimonEllwood
    @SimonEllwood2 жыл бұрын

    It is best to have two clamps, one for in incoming and one for solar production for the best monitoring. (I have a Zappi 2 myself).

  • @ncot_tech
    @ncot_tech2 жыл бұрын

    All I got with my car was a type 2 cable. Had to buy my own 13A charger while waiting for the 7kw charger to be installed. I have a Podpoint brand one with tethered cable, it has a current clamp to monitor total load on the incoming supply so it doesn’t overload the supply wiring to the house.

  • @anthonydyer3939
    @anthonydyer39392 жыл бұрын

    I think the two relays in series are for independent control and safety. So I guess one relay will be your PEN / earth fault isolator. The other relay will be for regular control functions. I work on programmable safety systems in the process industry. We often have two valves in series on a particular pipe. One will be for process control, and the other is a safety shutdown valve which intervenes if pressure / level etc is outside allowed limits. Safety systems are always independently controlled in case of a failure on your process control system.

  • @chris-tal
    @chris-tal2 жыл бұрын

    That chiptune sounds like the victory fanfare from Final Fantasy games.

  • @Bianchi77
    @Bianchi772 жыл бұрын

    Nice video, keep it up, thanks :)

  • @ilyashu.3247
    @ilyashu.32472 жыл бұрын

    The small relay and opto-coupler is probably a PE detection circuit. What it actually does is leaking a bit of current from Line to PE while measuring it. Current above predefined threshold means proper connection of PE. In some countries this may also allow 20mA instead of 6mA RCD.

  • @maximmono1
    @maximmono12 жыл бұрын

    Smashing mate!

  • @cargoudel
    @cargoudel2 жыл бұрын

    We open sourced a version of SAE J3068 at the University of Delaware. It’s the new North American standard for three-phase AC charging (using mennekes but higher voltage and current) and new digital control pilot called LIN-CP. It’s targeted for a medium and heavy duty use.

  • @PlanetCypher_
    @PlanetCypher_2 жыл бұрын

    Due to chip shortages I know they had to pivot to a different micro processor, not sure if the one Dave has is the current version or previous version.

  • @--Nath--
    @--Nath--2 жыл бұрын

    The flag is upside down clearly because it was stuck on in the northern hemisphere.

  • @lloydrmc
    @lloydrmc2 жыл бұрын

    It makes sense that they would use two relays to separate the hot wires in the ground fault protection circuit

  • @davoodnasehi
    @davoodnasehi2 жыл бұрын

    Nice one, Thanks

  • @jovangrbic97
    @jovangrbic972 жыл бұрын

    Why do two of the current clamps on the ground and P/N have 4 wires coming out them? For current sensing 2 wires are enough. What is it doing?

  • @kgsalvage6306
    @kgsalvage63062 жыл бұрын

    Thanks Dave! USA

  • @PlanetCypher_
    @PlanetCypher_2 жыл бұрын

    Second relay in series may be for the PEN fault isolation.

  • @jaycee1980
    @jaycee19802 жыл бұрын

    The Aussie connector looks rather similar to what is often known as a "Commando" plug here in the UK. EV chargers are typically permanently installed here, with a 32A feed taken from the consumer unit (fuse board!)

  • @dglcomputers1498

    @dglcomputers1498

    2 жыл бұрын

    And, of course, whilst all sensible countries have standardized on "commando" connectors there are a few places that have decided for no apparent reason to go their own way or to stay with a previous standard when having just the one universal worldwide standard is the most sensible thing to do.

  • @cambridgemart2075

    @cambridgemart2075

    2 жыл бұрын

    @@dglcomputers1498 Do you mean the USA, Aus and Japan? As you say, most countries have standardised on 16 /32/ 63A 'Commando' connectors

  • @johnrogers1423
    @johnrogers1423 Жыл бұрын

    The wireless antenna is most likely to allow communicate with Myenergi's Hub. The kW from your solar panels will be limited by your inverter. I did a tutorial on how to fit a Tesla charging button to the Zappi charging plug. Theoretically speaking, if the resistor in the plug was changed from 220 ohms to 210 ohms would it be possible to draw 34 amps from the Zappi or would there be some other limitation? I note that the relays are limited to 35 amps.

  • @aleksandrekalandadze1643
    @aleksandrekalandadze16432 жыл бұрын

    little relay is commutating input ground cable to ground checking circuit. if check fails, microcontroller turns off the relay to remove 'ground' cable from the plug output ground

  • @Gayestskijumpever
    @Gayestskijumpever2 жыл бұрын

    100% the flag was put on upside down as a joke. Poor scissor skills though!

  • @moestrei
    @moestrei2 жыл бұрын

    Charging your EV on excess solar is the icing on the cake. Followed by driving with your solar electric vehicle past a service station checking out the latest pricing for dinosaur juice.

  • @lolsypussy
    @lolsypussy2 жыл бұрын

    "Those Yanks are weird" - Dave 2021

  • @bbatbileg
    @bbatbileg2 жыл бұрын

    Funny that I got a quote from my electrician yesterday for this unit. Let's see if it's worth the money. Thanks.

  • @--Nath--

    @--Nath--

    2 жыл бұрын

    How many zeros on that quote?

  • @marria01

    @marria01

    2 жыл бұрын

    @@--Nath-- I paid £700 for mine, and that was with the grant money included, so around a £1k without, I think.

  • @cargoudel
    @cargoudel2 жыл бұрын

    Passenger EVs love 240 split-phase, just the same as 230 single-phase. The IEC EV standards allow for a hot “neutral” terminal on the connector. Not just because of the USA and Japan, Belgium and Norway for example also have older installations with Delta 230 connected transformers (no neutral) and on those EVSE use two hots.

  • @peterh5165
    @peterh51652 жыл бұрын

    Good video!

  • @gigaherz_
    @gigaherz_2 жыл бұрын

    For 32A single phase in the EU, you'd probably be using an IEC309-2 comformant plug? If there's anything for "home" use that isn't one of those industrial plugs, I haven't seen it. That said I'm not an electrical engineer so please correct me if I'm wrong. EDIT: Here in Spain for up to 10A without earth, we have the Europlug, and for up to 16A and things that require earthing, Schuko.

  • @fabiobosco7545
    @fabiobosco75452 жыл бұрын

    The RCD module could be produced by third part company that remark for them. The reason may be that RCDs have high safety standards and require extensive safety testing. In support of this is the fact that the finish of the two PCBs is different.

  • @TornTech1
    @TornTech12 жыл бұрын

    Least you got a zappie and not a HyperVolt… something still very unsettling about having a raspberry pi which I don’t control sitting on my home wifi, in an always powered on box accessible to anyone on the outside of my house. Apparently it’s not a problem though! Many layers of encryption 🤦‍♂️ yet they won’t send me a trial unit a free PenTest! 🙄

  • @ebenwaterman5858
    @ebenwaterman58582 жыл бұрын

    You're good at exposing Scams. Here's a big one. Spinlaunch.

  • @Flygio
    @Flygio2 жыл бұрын

    Interesting!

  • @daveturner5305
    @daveturner53052 жыл бұрын

    Dave. What is the power rating of your resistance box?

  • @DoNotEatPoo
    @DoNotEatPoo2 жыл бұрын

    One standard test you should include is how it reacts to the penny/paperclip challenge.

  • @adamanderson8484
    @adamanderson84842 жыл бұрын

    Might be best to change the Ethernet cable connecting the CT's to a control type cable to differentiate it from other Comms cabling in the house. CT's can output high voltage if there is no load, ie some NBN tech cuts the cable. I'd go with a screened control cable and look at fusing(PTC Thermistor)/over voltage(MOV) the outputs of the CT's at the main board. I haven't done any calcs to see what power we are talking about but I think the the CT V could be dangerous if the cable was cut.

  • @electronicbob6237
    @electronicbob62372 жыл бұрын

    The Signal Swing is + - 12 V the Earth is 0 .....the Diode is to drop the Signal only on the Positive Side of the Signal..

  • @Razor2048
    @Razor20482 жыл бұрын

    I wonder can't they design a system to determine the limits of the line, e.g., base it on voltage drop or any other measurement to determine what the wiring can handle just in case someone does something like put a 30 amp charger on a 20 amp circuit but leaves the device set to 30 amps?

  • @andrewt9204

    @andrewt9204

    2 жыл бұрын

    I think there would be too many variables for voltage drop, unless you set it really high I suppose, but that could easily be above the current rating limit. For example, dropping 5 volts on 100' of 30a wire is probably fine as that's a lot of length to absorb the heat, but if you had 5 volts of drop on 10' of wire, that could be a sign of an issue. I get about 2-4 volts of drop when charging my car, and I only charge at 23 amps out the of circuit's max of 60 peak, 48 continuous (6 AWG copper). And I don't have far runs. The 200 amp service entry only runs 8 feet from the meter to panel, and only another 13' from the panel to EVSE. Cranking up charging to the max 40 amps of the EVSE, I usually get near 6 volts of drop. Which is a lot so I never charge that high. Everything gets warm and the car's cooling circuit kicks on a lot, which is all wasted energy. Also the voltage to my house can fluctuate ~10 volts throughout the day, so it would have to measure the voltage at the panel somehow to know what the drop between panel and EVSE is. If the EVSE has NEMA plug, the max current should already be set from the factory, and the wiring in the house should already be up to code for that receptacle. If it's a hard wired EVSE, then more likely it's going to be installed by a licensed electrician or by a knowledgeable owner who knows what they're doing and gets it inspected by an official. It's an interesting thought though. Perhaps another way to have a safety like that is to have temp sensors on the line side terminal block and ambient air of the EVSE. If you've undersized the wiring, the temp difference between the block and ambient would reach a certain threshold and start to limit the current. I know the Tesla portable EVSE has a temp sensor in the plug head to throttle current if it gets too warm from a loose fitting or overloaded receptacle. At least the US versions do.

  • @marria01
    @marria012 жыл бұрын

    Great video! I have the untethered version of this unit in my garage. Has anyone done a teardown of the Hypervolt yet? Not sure I like the idea of a Raspberry Pi + SD card from a longevity/reliability standpoint. Think I prefer the PIC in the Zappi.

  • @jaycee1980

    @jaycee1980

    2 жыл бұрын

    Using a Pi would almost certainly have me thinking "Do they really know what they're doing?"

  • @DanielLopez-up6os

    @DanielLopez-up6os

    2 жыл бұрын

    At how much it will be reading the SD card the card will have endourance for a decade, and the Raspberry PI is super reliable and used in some reliable stuff that also needs to be cheap.

  • @marria01

    @marria01

    2 жыл бұрын

    @@jaycee1980 it seems like a sledgehammer solution for a kickoff. But also a lot more hassle for them to keep it up to date, as they'll need to keep an eye on OS security patches etc.

  • @fredfred2363
    @fredfred23632 жыл бұрын

    Just had a thought- why not do the trip tests using high power variable resistors to see at what current they go'. Connect between the output live (or "active" in aussie) and the input Neutral and slowly turn down the resistance... -click. 👍🏻

  • @circuitdotlt
    @circuitdotlt2 жыл бұрын

    Now I understand why so many companies started producing their own charging points. Margins must be great, as it is not worth what they ask for it. Sadly, still very few good options out there. I chose zappi as well.

  • @universeisundernoobligatio3283
    @universeisundernoobligatio32832 жыл бұрын

    Only takes me 10 seconds to charge my EV. 5 seconds to plug it in when I get home, 5 seconds to unplug it when I leave. Gas stations are just places to have a pee and buy snacks.

  • @treelineresearch3387

    @treelineresearch3387

    2 жыл бұрын

    ...as long as you're not going more than 300 miles (or less, depending on temp and battery wear).

  • @universeisundernoobligatio3283

    @universeisundernoobligatio3283

    2 жыл бұрын

    @@treelineresearch3387 Long distance travel is easy drive for 2 to 3 hours charge foe 15 to 20 minutes, repeat as necessary. The bladder limit is my range governor.

  • @treelineresearch3387

    @treelineresearch3387

    2 жыл бұрын

    @@universeisundernoobligatio3283 I think we can just admit batteries are still quite sub-optimal for road trips, at least in the States where everything is much farther than say Europe. Fine for commuting tho. The main reason I don't have any interest in electric yet is they're still going for a "disposable car" model. Maybe that will change as there are more of them around, but the industry itself really loves the disposable unfixable aspect.

  • @universeisundernoobligatio3283

    @universeisundernoobligatio3283

    2 жыл бұрын

    @@treelineresearch3387 Friends drove in February in a Model 3 ( winter in Canada) from Vancouver to Halifax 6,300km in 72hours 32 minutes, long distance travel in the cold was not a problem.

  • @universeisundernoobligatio3283

    @universeisundernoobligatio3283

    2 жыл бұрын

    @@treelineresearch3387 Both brother's are mechanics and they complain endlessly about the ICE cars having 100k life and companies making the difficult to repair "disposable car" .

  • @BRYDN_NATHAN
    @BRYDN_NATHAN2 жыл бұрын

    Thank you. I want to charge my boat battery with one 👍

  • @ukvette
    @ukvette Жыл бұрын

    Hi, so I guess I can simply have a standard metal enclosure in my garage, supplied via 40 amp dedicated mcb in my house, with a suitable 50 amp contactor in the enclosure, contactor controlled by din rail timer, to only close the contactor 23:30h until 05:30h for cheap rate. Having a 200 ohm resistor ?

  • @pahom2
    @pahom22 жыл бұрын

    20:00 so, does it detect the lack of earth while charging? If the feature was declared but not implemented its a fail.

  • @gudenau
    @gudenau2 жыл бұрын

    Was that a Final Fantasy tune?

  • @testman9541
    @testman95412 жыл бұрын

    Actually more advanced use like V2G requires IEEE P1901.2 HomePlug Green PHY (HPGP) to be implemented. Which means the wall "charger" has to be at least a passthrough and ideally active in sensing the operation. Plus advanced uses such as V2H will require advanced power handling from it anyway.

  • @randycarter2001
    @randycarter20012 жыл бұрын

    That is the same PIC processor I'm using my projects.

  • @WatIsLove
    @WatIsLove Жыл бұрын

    I watched another video with a rolec charger and that one does not have a printed circuit board like this.. what is the difference between the hardware from both units i wonder?

  • @markm0000
    @markm00002 жыл бұрын

    “Those Yanks are weird.” We like our power system and we’re proud of it.

  • @freman
    @freman2 жыл бұрын

    seems someone at myenergy is a final fantasy fan

  • @slonbeskonechen8310
    @slonbeskonechen83102 жыл бұрын

    Could you, please tell me what sensor was used for the residual-current device (RCD)?

  • @vahagnmelikyan2906
    @vahagnmelikyan29064 ай бұрын

    Can this be connected to solar panel with inverter? Or it will draw too much amps and drop the voltage ?

  • @thomasostman8678
    @thomasostman86782 жыл бұрын

    How is the isolation distance on the pcb between live and neutral at the incoming terminal block

  • @Electronics-Rocks
    @Electronics-Rocks2 жыл бұрын

    In the UK the DNO(distribution network operator) in our area (Western Power) is installing three phase to new builds now. This blew me away learning this. This is for super fast charging for cars and heat pumps/ air conditioning. In UK most outlets I have measured a good 240v so same as Australia just we needed to move to 230v to conform to EU guess what we left the EU.

  • @SimonCoates

    @SimonCoates

    2 жыл бұрын

    Unfortunately the National Grid is already at capacity.

  • @HenryLoenwind

    @HenryLoenwind

    2 жыл бұрын

    @@SimonCoates At peak time. And it's running at about 20% capacity at its lowest. Which means that there is no problem, as cars need about 1 hour (single-phase, or 20 minutes 3-phase) worth of charging per day on average. Plenty of hours each night when the grid is idle.

  • @Electronics-Rocks

    @Electronics-Rocks

    2 жыл бұрын

    The biggest problem with the grid is imbalance in the system. Having three phase and smart tariffs will ballance the network and because of renewable energy the gas turbine network is being upgraded to bring balance back

  • @robywankenobi32
    @robywankenobi322 жыл бұрын

    NIce, so this is the same as a Phone "charger" haha, the charger is in the phone but the USB power supply lets the phone know how much current it can pull ( I think in the 2.0 USB spec at least) via the data pins.

  • @GregHassler

    @GregHassler

    2 жыл бұрын

    Right, this is really called an EVSE, not a charger.

  • @stuartpeters1080
    @stuartpeters10802 жыл бұрын

    Hello from Dunfermline, Fife

  • @gustavrsh
    @gustavrsh2 жыл бұрын

    Hey Dave, I don't know if you talked about it already, but are "reverse chargers" available? By that I mean using an EV as energy storage for your home in the case of outages or for solar/energy cost reasons

  • @AlexanderBurgers

    @AlexanderBurgers

    2 жыл бұрын

    Kinda? en.wikipedia.org/wiki/Vehicle-to-grid It's mostly still in testing it seems.

  • @volvo09

    @volvo09

    2 жыл бұрын

    You would need to modify your car, or buy one specially designed. You can't just plug into an EV and take power out of the plug, it must be designed to allow that.

  • @quinnf924

    @quinnf924

    2 жыл бұрын

    I believe the F-150 lightning can do that? Not too sure

  • @EEVblog

    @EEVblog

    2 жыл бұрын

    Yes, it's called Vehicle to Grid.

  • @stuartirwin3779

    @stuartirwin3779

    2 жыл бұрын

    The current Hyundai Ionic 5 and Kia EV6 have vehicle-to-load, that can supply up to 3.6 kW via a standard 240V 15A socket adapter. That'd be great during blackouts.

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