Backup to the Standby Generator- Off grid

M

MKobylka

New User
Location
Canada
Occupation
Electrician
Hello,

I am trying to figure out if it possible to add a backup to main the generator in case it does not start. This is for an off-grid set up.

  • Solar Power is the main source of power with a 12kw inverter and battery back up
  • When the batteries drop to a certain X determined level the inverter sends a signal to start the generator
  • The generator powers all loads to the house and charges batteries.
  • Once the Batteries are charged the generator shuts off and repeats.
  • The inverter acts as the transfer switch
The main generator is a 18kw Generac running on LP. The secondary generator would be a Honda 7000

Is there way to monitor if the Generac did not start and in that case would send a signal to the Honda to start?
 
You can cascade the ATSs .
18kW Generac feeds the normal side of an external ATS (Generac is started by the inverter ATS) and the Honda is the alternate source to the external ATS then feeds into your existing ATS built into the inverter.

The external ATS would have a delay set before it starts the Honda waiting for good power from the normal side, which is the Generac.
 
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