[RE-wrenches] Back-up generator/inverter shut-down relay

[Matthew Sirum]

Greetings Benn,

There may be another option which would avoid extra controls/devices.
The point of interconnection of the inverter output circuits could be
a supply side connection; the inverter outputs could be combined and
interconnected between the service point/utility meter and the utility
supply connection to the automatic transfer switch.  This may be an
installation option to consider if allowed in the jurisdiction where
your project is located and if practical given the existing electrical
work and nature of the site/building.

Best regards,

----MATT

Matthew Sirum
P.O. Box 1227
Greenfield, MA 01302-1227  USA
phone: +1.413.773.0611
email: MatthewSirum at gmail.com


Date: Thu, 8 Sep 2016 11:00:09 -0600
From: Benn Kilburn <benn at skyfireenergy.com>
To: RE-wrenches <re-wrenches at lists.re-wrenches.org>
Subject: [RE-wrenches] Back-up generator/inverter shut-down relay

Wrenches,
We are installing 2 SolarEdge SE7600A-US inverters in a grid-tied
system that has a 15kw back-up generator on an auto transfer switch.

The generator is located in a shed about 300' or more away and the
feeders to the house are underground. Inverters are located in the
house basement mechanial room along with the house electrical
panelboard.

We are looking for relay options to shut down the inverters when there
is a power interruption, before the generator kicks in.  This could be
a manual reset.

What are some options you have seen/used for something like this?

Thanks,

*Benn Kilburn *
CSA Certified Solar Photovoltaic Systems Electrician, SkyFire Energy Inc
14515 ? 121A Ave NW | Edmonton, AB | T5L 2T2
P: 780-474-8992 | F: 888-405-5843 | www.skyfireenergy.com