Re: [RE-wrenches] Strategies for staged startup of appliances

2019-09-17 Thread Chris Schaefer
Hey Dave, Sorry for the delay to your question on the ASCO. Yes the 185 is the one I use either with a service entrance rated CB or without. You can adjust time so in a power outage the transfer is less than 2 seconds. Have had zero issues since switching to them over 10 years ago. Christopher

Re: [RE-wrenches] Strategies for staged startup of appliances

2019-09-13 Thread Jason Szumlanski
I'll let you all know once we sort this out. A series of blade type disconnects could work. I'm not doing the AC distribution past the inverters, but I need to consult with the electrical contractor so I'm driving the bus at this point. Some combination of manual and automated controls should

Re: [RE-wrenches] Strategies for staged startup of appliances

2019-09-12 Thread Jay
We don’t know how you have the AC distribution set up. If you have a main that then distributes to sub panels, how about relays on delay timers that go to each sub. 3-5 seconds would be more than enough. Or mechanical discos with simple instructions of delay between each. But yea people have

Re: [RE-wrenches] Strategies for staged startup of appliances

2019-09-12 Thread Dave Angelini Offgrid Solar
Jason, any chance of one of the "help" being made knowledgeable to manage this? In a way this is what I do for my offgrid clients. If they won't, I walk away because it is just to complicated at this stage in RE. Hoping it will change! I get them up to speed on managing loads and understanding

Re: [RE-wrenches] Strategies for staged startup of appliances

2019-09-12 Thread Jason Szumlanski
I definitely understand that I can't prevent it 100%, but I can surely mitigate the likelihood. It's highly unlikely that all 10 refrigerators will all start simultaneously based on temperature with the well pump and two air conditioners except when power is first applied. Moreso than the ATS

Re: [RE-wrenches] Strategies for staged startup of appliances

2019-09-12 Thread Dave Angelini Offgrid Solar
Which models do you like from ASCO Christopher? Something like this below? https://www.ascopower.com/us/en/product-range-presentation/66110-asco-series-185-power-transfer-switch/ [1] Dave Angelini Offgrid Solar "we go where powerlines don't" http://members.sti.net/offgridsolar/ [2] e-mail

Re: [RE-wrenches] Strategies for staged startup of appliances

2019-09-12 Thread Chris Schaefer
Jason, Given all of the equipment you're looking at I'd consider using a small shoe box sized PLC. Relays and timers are good but the PLC will give you a lot more flexibility in a very small package and will be able to sense when the ATS switch transfers. I enjoy using the ASCO unit as it offers

Re: [RE-wrenches] Strategies for staged startup of appliances

2019-09-12 Thread Jerry Shafer
Outback inverters can do that, start and stop the genny, start up if loads are above a programmed setting. I have used Lutron for a similar application that turned one AC on at a time. You can use the inverter to turn off load(s) if they is/are to high, it's all programable Jerry On Wed, Sep 11,

Re: [RE-wrenches] Strategies for staged startup of appliances

2019-09-12 Thread Chris Mason
The Generac SMM senses the generator, probably won't work for solar. It's easy to do a contactor with time delay relay, those devices are available off the shelf. As long as power goes off then back on, the time delay unit will back off for the set time. You can probably find a device that is an

Re: [RE-wrenches] Strategies for staged startup of appliances

2019-09-12 Thread Mac Lewis
Generac has a pretty cool device that really needs to get emulated in the solar industry called the smart management module. It's a standalone smart relay that can be programmed via dip switches to do just this, bring devices on line in stages and drop them if the generator is getting overloaded.

Re: [RE-wrenches] Strategies for staged startup of appliances

2019-09-11 Thread Dave Angelini Offgrid Solar
Jason, You may want XW pro. It is not much more than XW+ and will have a better support for what you want in your microgrid. It also has twice the warranty over xw+. Dave Angelini Offgrid Solar "we go where powerlines don't" http://members.sti.net/offgridsolar/ [1] e-mail offgridso...@sti.net

Re: [RE-wrenches] Strategies for staged startup of appliances

2019-09-11 Thread Jay
You’ve got to plan on them all starting at once anyway. You can’t expect that it’ll never happen. And really how do you prevent it. The refrigerators and AC’s are on all the time waiting for the thermostat to activate. And it’s not good to turn a working fridge on/off especially is the

Re: [RE-wrenches] Strategies for staged startup of appliances

2019-09-11 Thread Dave Angelini Offgrid Solar
Hi Jason, I would use soft start on everything that I can. The mini-split already is soft start. There is a device that adds soft start to appliances/loads below. https://www.raymondinnovations.com/ [1] In the future Schneider and I assume Outback will have API's for their electronics.

Re: [RE-wrenches] Strategies for staged startup of appliances

2019-09-11 Thread Jason Szumlanski
That is what I was thinking, but how will the contactor coils "know" when the ATS switches to inverter power. I'm thinking I need to use an AUX relay or a series of relays to produce the desired result. I don't think it will be necessary when going from solar to generator in this case, but maybe.

Re: [RE-wrenches] Strategies for staged startup of appliances

2019-09-11 Thread Michael Morningstar
Put the loads on contractors, control the contractors with adjustable time delay relays. Stagger the timing. > On Sep 11, 2019, at 2:41 PM, Jason Szumlanski > wrote: > > In an off-grid situation I'm looking for a strategy to manage transfer from > generator power to inverter power because I