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Viewing 15 posts - 1 through 15 (of 113 total)
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  • in reply to: thinking of Buying Emporia #8780 Report Abuse
    djwakelee
    Member

    Honestly, they are hard to recommend at this time.  We’ve been promised better support for 240V loads and logical joining of multiple Vues (for those with big panels for 2 years) – but these software improvements just aren’t ever coming it would seem.  Their ecosystem is solely cloud based for everything, and that may be a turn-off for you.  But bigger issue is they seem to have orphaned this product from a software development standpoint, and focusing on their EV chargers and new products.  Couple that with the fact their smart plugs are dying for everyone, and it is just hard to recommend them.  Great value for what you are getting, but I guess the age-old ‘you get what you pay for’ applies here.

    I’m sad to be unable to recommend.  The product has so much potential.  But their development team does not seem interested in fixing and improving the Vue 2.  Does that mean they are working on a Vue 3 or are just overloaded, I don’t know.

    in reply to: How to properly monitor a 20/50 quadplex breaker? #8777 Report Abuse
    djwakelee
    Member

    I had to do some research – never seen such a thing before.  So each of those 4 individual breakers are half  height – with a common trip bar on the inside, and a separate trip for the outer ones.  In the space that occupies, you could normally only put 2 120V (single) or 1 240V (dual) breakers in that spot.  But at half height, you can fit twice as many breakers.  You may have seen dual breakers that fit in a single slot.  In that case, both circuits are on the same phase.  This special animal allows you to have two 240V breakers in one 240V spot.  Because the adjacent 1/2 height breakers are on the same phase, you have that weird trip arrangement so you can get the two phases joined.  And you can get these in mixed currents, like your dual 20 / 50 A.  But basically this breaker just lets you put (2) 240V breakers in the spot that could normally have just (1) 240V breaker.  Neat.

    You will need either 2 clamps or 4 clamps to monitor the two 240V circuits, depending if the loads are balanced or not.  If the 240V circuits go to an AC compressor, pump, hot water heater, or EV charger – they are balanced and you just need 2 clamps (1 for the 20A circuit, 1 for the 50A circuit).  Then you need to use the 2x multiplier in the app.  If however these breakers go to a sub panel, dryer, range, or hot tub – those are typically unbalanced and you need a clamp for each phase (4 total).  Easy to tell – just see if a neutral wire goes with that circuit out of the panel.  If the circuit uses neutral (in addition to ground), the load is unbalanced and you need 4 clamps.

     

    • This reply was modified 3 days ago by djwakelee.
    in reply to: Safe to install 2-phase Vue on 3-phase house? #8774 Report Abuse
    djwakelee
    Member

    That’s standard residential split phase 120/240 – not 3 phase.  The red and black are the hots, the white is the neutral, and the un-insulated wire likely goes to a ground rod.

    In this standard setup, you’ll want your mains clamps plugged into to the A and B terminals of the Vue 2.  I think you mentioned hooking up to B and C – this is incorrect.  Your power connections are a bit hard to see, but the white and blue connected to the neutral bar is correct.   The red and black wires would need to do to a double pole breaker – not two individual circuits.  If you have room in the panel this is best done with a new 15A dual pole breaker, but if not you can tie off an existing dual pole 240V circuit.  Can’t tell if you did that or not.  The online manual details those two different scenarios.

    After you connect things correctly (moving the mains from B/C to A/B), you’ll need to re-run setup for the Vue 2 be configured properly.

    in reply to: Safe to install 2-phase Vue on 3-phase house? #8772 Report Abuse
    djwakelee
    Member

    Is it safe, probably.  Is it correct and will it read accurate readings – can’t say until seeing the setup.  But everything you described doesn’t sound correct.  And residential in the US is rarely 3-phase, unless a mansion.   Shouldn’t be referencing the Sense documentation – as that’s a different product from a different company.

     

     

    in reply to: Safe to install 2-phase Vue on 3-phase house? #8769 Report Abuse
    djwakelee
    Member

    Please post a picture of your setup and electrical panel.  Typically residential is not 3 phase.  Based on the wire coloring, it sounds like you may have this installed in a sub panel, which would be standard 120/240V.  But a picture of your electrical panel (cover off) and showing the Vue2 and hookup will help us advise you correctly.

    in reply to: Problems with connectors? #8694 Report Abuse
    djwakelee
    Member

    Do you have a photo of your install?  US 120/240V installation, or 3 phase or 240V single phase?  How did you power the Vue 2 with the specific wires (not all are typically used)?  Can you better describe what specifically isn’t reading right?  Is the mains values current, and just an issue with a few circuits?  Photo of your app screen?  With that info, usually someone can help here.

    A few basic points…

    1) CT clamps must be fully latched.  If not, they can impact (and be affected) by other circuits.

    2) Less than about 8-10W of power are forced to zero by the app.  So if you are trying to read a circuit with low-ish power (say a circuit with just a cell phone charger), the circuits wouldn’t read anything – but the mains clamps will be correct for the total household draw.

    in reply to: Numbers Not Adding Up #8670 Report Abuse
    djwakelee
    Member

    Also, just noticed that your balance figure is green.  This means the system thinks there is surplus unaccounted power coming from somewhere – being generated, not consumed.  So that is why the math is behaving like a subtraction instead of addition.  When the balance is blue, that means it is un-monitored load (consumption).

    So still need to work through what is wrong in the setup, but that explains the math.  My first guess would be unbalanced 240V circuits – which would need two clamps and no multipler to be correct.

    in reply to: Numbers Not Adding Up #8669 Report Abuse
    djwakelee
    Member

    In your list, I see loads that are 120V, and others that are likely 240V.  Yet you only show one entry for the 240V loads – so I’m guessing you are using 2x multipliers for those, and single clamp?  Not all 240V loads are balanced, so that doesn’t always work.  A 240V water heater would be, but a dryer or stove may not be.  So that’s the first thing to check.

    Other thing is do you have any solar or other power generation hooked up (battery storage, etc)?  If you do, that will make things weird also, if they aren’t monitored by the Vue 2 with dedicated clamps.

    And finally, I had a scenario where a couple of my circuit clamps were being influenced by adjacent wiring power consumption – and yielded higher readings.  This was not because they weren’t clamped properly (which they need to be), but because the ferrite material in the clamps was cracked.

    To troubleshoot, when the mismatch is occurring, turn off each of you monitored load’s circuit breakers and see if you get things to add up properly (or at least close – there will always be a small error).  This will point you to what device / clamp / circuit is involved with this.

    Also make sure your two mains clamps and fully closed and secure, as well as all the circuit clamps.

    A photo of your setup, as well as list of your 240V circuits and multipliers would also help to see if anything unusual immediately jumps out.

     

    in reply to: Always On lock needed #8627 Report Abuse
    djwakelee
    Member

    There is a write up on the forum with photos.  Just hard to search for it.  I will try and find it.

    Found it…

    Hacking the SmartPlug to be always ON.

    • This reply was modified 1 month, 2 weeks ago by djwakelee.
    in reply to: Always On lock needed #8625 Report Abuse
    djwakelee
    Member

    Totally agree this is needed.  Some people have even physically opened up the units and modified them make them always on, since there have been many glitches with the software operation – turning off loads after brief power outages.

    in reply to: Does this install look ok ? #8615 Report Abuse
    djwakelee
    Member

    Looks fine.  No problem that the Vue 2 will press against the front cover.

    It can get much more messy when you use the 16 circuit sensors also, or if you have multiple Vue 2’s and use 32 sensors for a big panel.

    in reply to: Broken Current Sensor #8614 Report Abuse
    djwakelee
    Member

    I had a couple sensors where the ferrite material was cracked.  So when the sensor was closed, it really wasn’t totally.  Interesting behavior – would pick up false power from adjacent wires.  Emporia sent new ones – no problem.  Chat support is great.  Firmware and app updates for the Vue 2 – not so much.

    in reply to: Smart Plug for EU 230V ! #8579 Report Abuse
    djwakelee
    Member

    FYI, this link has a photo of some of the internals.  I don’t see the 400V capacitor you mention.  And there are many other parts (and clearances) that would need to be checked.

    Hacking the SmartPlug to be always ON.

    in reply to: Smart Plug for EU 230V ! #8576 Report Abuse
    djwakelee
    Member

    Thanks for the reply.  Well, I guess I’d have to see the circuit.  Just because the caps are 400V rated doesn’t mean the low voltage power supply will appreciate the 230V long term.  Somewhere in there is a regulator for the ESP8266 WiFi chip, stepping the AC line voltage down to 5VDC or 3.3VDC.  Some sort of DC voltage also needs to drive the relay coil.  Everything on the primary side of that step down circuit would need be able to deal with 230/240VAC.  Proper clearance distances on the circuit board as well.  I’ve not looked at the components or configuration, but confirming 230V safe operation would perhaps take a little bit more checking.

    • This reply was modified 2 months ago by djwakelee.
    in reply to: Smart Plug for EU 230V ! #8573 Report Abuse
    djwakelee
    Member

    What modifications are needed to convert the unit to 230/240V?  Did you just add plug adapters, or change the electronics in some way?  Are the reported power readings correct with your 230V mains?

    Thanks.

    • This reply was modified 2 months ago by djwakelee.
Viewing 15 posts - 1 through 15 (of 113 total)