Just an ad-on to the first GoodWe 5048D-ES video showing the metering device for grid limiting, but in particular; a 3-way changeover switch that safely isolates the system and also has a bypass position.
I do not use the metering device - but it must be connected for the UPS part of the inverter to operate.
Here we see 2 X RED power points which make up part of the UPS circuit allowing power use during a blackout. The UPS switch has 3 positions -
1. UPS - This uses the inverter, solar and batteries, feeds the UPS circuit, and uses mains as a back-up to the solar and batteries.
2. Disconnect - this disconnects all wiring, inverter, UPS circuit, and mains.
3. Bypass - this just completely bypasses the inverter and batteries. In essence, it just connects the entire UPS circuit to mains electricity supply.
See more at: tolnix.com
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