Oh ! Dang I didn’t think, I’m so sorry.
You must be on triple time today then ?
Very informative
My only concern here is you say US properties have 2 phases which sum to 240vac (that’s our standard anyway (it should be 230 +10%/-6% but that’s just a fudge to allow UK to run 240vac (and I’m actually on 254v).
Anyway 2 off 120v voltages that sum to 240v ‘have’ to be at the same phase angle.
So it’s more like a centre tapped single 240v phase.
But for that to happen the other two phases of a standard 120° offset transformer must be similarly wired so 9 connections or 6 with a massive 7th. Without a centre connection for the phases to rotate around. That can’t be right so the neighbourhood transformer must be a single phase 1900v ??? leg (3k3v 3 pH) ? Down to a centre tapped 240v ???
What am I missing here ?
Whenever I travel I’m equally interested in the infrastructure as well as the culture
The wife gets really bored with that. Reykjavik has a wastewater works that they let tourists in (I got an extended tour )
Nope just my normal pay rate. But I do get an extra 8 hours for both today and tomorrow tho.
I’m not 100% sure but we had a transformer (one single phase out of a bank of 3 phase) blow up a few weeks ago right beside my house. When the guys came by to fix it I asked what voltage it ran they said it was 14.4kv.
I don’t think the individual supply transformers (like the one that blew up which would be right upstream from the load center) have to have any center tapping. They just supply 240v phase to phase. The generating station (or downstream substations) is where all of the center tapping happens.
And they use the earth as the return path and, therefore, reference potential. Which is why you get a straight 120v to ground instead of some strange calculation of voltage in the three phase supply in which you get 277v to ground on a regular 480v phase to phase 3-phase supply system.
And I’m really a substation guy and only get to play with 34.5kv once in a while (but hopefully it’s dead when I do). And I even get to do some substation switching on 345kv more rarely still. So I could be wrong and have a misconception on some of that really high voltage generating station stuff.
Thanks for the details finity. For the above, not actually the case. It was a lot to read I’m sure, but at some point I probably mentioned that I actually reverted my VM back to the the previous snapshot that didn’t have any Z-Wave devices tied to it and reset my Z-Stick back to there were no devices. But anyway, so I’m at a quandary. Based on your wiring description, thank you for that, I will have the wires I need to have a Z-Wave wall receptacle that I can install. Problem I have is all my wall plugs are light almond and Leviton Decora series. So great, they exist in Z-Wave but not Z-Wave Plus. I assume without Z-Wave Plus I am creating a weak Z-Wave network since I’m trying to create a base so the devices I really want to setup will be able to communicate? Couldn’t find anything else that would match the coloring that was Z-Wave Plus. They are all stark white.
Even at that wouldn’t the old nodes in the zwcfg file still remain until that was cleared? And all of the entities in the entity registry would still be there as well until removed?
It would be interesting to see what would have happened if the device was paired on a completely new install.
Based on the previous statement that the first two times the device was paired the “_2” & “_3” entities didn’t get created still leaves me thinking they might be remnants of previous pairings.
I think this was clarified by someone else but I am running on a virtual machine. I reverted back to when I first added the Aeotec Z-Stick and had nothing else was installed yet. And yes per firstof9 reset the stick.
To me it looked like even though I gave up on that device that when it was in non secure mode it gave me three entities and the other two wouldn’t do anything, and when it was in secure mode I got two entities and each independently responded to each of the two probes.
But in the end, year later after I last gave up, the availability of what I need anyway to make a solid network isn’t there. So I posted this separate so it doesn’t get to mixed up, going to try a Fibaro device but need to figure out how to wire it up so it’s a repeater. That said every time I try to buy some hardware with z-wave either my house can’t support it or the electrical vendor doesn’t have any color other than white so the family doesn’t want it, or the devices are not quite working right. Always seems to me like Z-Wave is still in the work in process stage . Definitely not something the average person can just plug in and things just work.
I also would like to add that I’ve got around 23 zwave devices (half are battery powered and maybe a third are by Aeotec) and I’ve had almost no issues with my zwave network. It’s pretty reliable for me.
I did have a couple of Aeotec micro-dimmer switches that didn’t work the way I expected and I had a couple others fail on me but since I bought them thru Amazon it was extremely easy to get all of it resolved.
Yeah, this is very true but in the 3 years that I’ve been using zwave, it’s gotten much better. I recommend jasco products but they all require electrical wiring. These plug and play devices are always hit or miss imo. Nothing ever comes in black either. If it happens to, it’s not a shiny or stylish black, it’s utility hide in your basement black
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