It's Generac "Synergy" not syntergy And yes, they just came out with them as their own version of the inverter type generator. I've only seen it listed on a few of their dealers so far.
There's nothing magic about wiring a transfer switch. In the larger systems of about 7 - 8 kW and higher, think of it as a remote sub-panel that might for example, be in a garage and fed out of your main house panel through an appropriate sized breaker, but with a two way switch for the Line In that selects either the line from the main panel or, the generator. This applies whether it is manually operated or fully automatic. All the control switching logic comes from the manufacturers circuitry. The whole idea is to NEVER permit your generator output finding its way out to your main feeders. (You could electrocute a Lineman working on what he thinks is a dead line. That pole-pig outside works both ways. You apply 240 V on your side and there is 7½ or higher kV on that deadly wire!) Unless there is a massive failure in the switch itself, this can never happen. Most of the ones I've seen are WAY overrated for just that sort of safety margin. My panel came with a 15 kW generator, but has a 200 Amp transfer switch. The commercial power input is completely dis-connected from the generator much the same way as a DPDT switch's outer contacts never touch. In some of the smaller transfer panels, each house circuit has its own two way switch such that you have to manually switch it from mains to generator and back when the juice comes back on. This works fine too and isolates the generator output. 73, Charlie k3ICH -----Original Message----- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Doug Hensley Sent: Saturday, September 09, 2017 1:44 PM To: Elecraft List <elecraft@mailman.qth.net> Subject: [Elecraft] OT: Whole House Generator - Update Someone on the list suggested we post a summary of private responses to us as an alternative, I'm guessing, to members not knowing what was said. In my case, the results don't lend themselves to a simple summary so I am sending this as a fair response to what I learned: 1. I'm quite surprised by the many respondents with homes over 2500 sq feet running satisfactorily off generators under 10 KW with several as low as 5 & 5.5 KW. One 3300 sq ft home was happy on 7 KW. Generator size ranged as you would expect from the portable Honda to the stationary GENERAC & KOHLER units. Natural gas as a fuel choice got the most recommendations. The overall lesson seems to be to "know your load" and buy what you need, not what you want. 2. I'm was pleased to hear K3, K3S & KX3 owners consistently reporting whatever hash their units were producing had no ill effects on their Elecraft radios during the period their generator was running. One engineer measured his no frills stationary generator as having about 4% THD. Most reported only the audible noise from their generator was noticeable while it was running (I suppose like a lawn mower doing the lawn outside). 3. No one reported having a GENERAC Syntergy unit. 4. The 1800 RPM Kohler was recommended the most over the more prevalent & cheaper 3600 RPM units. 5. Finally, most people were in favor of an automatic transfer switch for the whole house with installation done by a proper electrician. Sorry I can't give any more specifics. The reports of Elecraft working nicely with or without the generator running was refreshing. Thanks to all who responded. Doug W5JV ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to pin...@erols.com ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
