hennemark
Member
- Location
- Lansing, Michigan, USA
I have a customer with one power company feed split at the house to go through two meters: one meter for general household electric, and a second meter for his geothermal system (power provided at a discount rate). He needs a generator to provide backup power for both "systems."
I'm using a 20 kW Generac generator, and two Generac transfer switches.
My question is how to wire the 24V and the 120/240V cables that send the signals to the transfer switch mechanisms in each unit. I'm guessing that to isolate the 240V power between the two systems, I should (a) connect the signal wires between the generator and Transfer Switch #1 normally, (b) connect the 24V signal wires in parallel, but (c) use a 240V relay switch for the N1 and N2 wires between Transfer Switch #1 and Transfer Switch #2. Do I need a relay switch for the Load wire too? Does it matter which transfer switch unit I use to connect the signal wires for load shedding?
Does anyone have experience doing this?
I'm using a 20 kW Generac generator, and two Generac transfer switches.
My question is how to wire the 24V and the 120/240V cables that send the signals to the transfer switch mechanisms in each unit. I'm guessing that to isolate the 240V power between the two systems, I should (a) connect the signal wires between the generator and Transfer Switch #1 normally, (b) connect the 24V signal wires in parallel, but (c) use a 240V relay switch for the N1 and N2 wires between Transfer Switch #1 and Transfer Switch #2. Do I need a relay switch for the Load wire too? Does it matter which transfer switch unit I use to connect the signal wires for load shedding?
Does anyone have experience doing this?