“Draw a residential electrical single line diagram with an 8 kWdc rooftop PV array, 7.6 kW hybrid inverter, 13.5 kWh battery, 200 A backup gateway, and backup panel feeding a refrigerator, selected lighting, and critical receptacles.”
看懂背後的決策。
An 8 kWdc array has a DC disconnect before the hybrid inverter.
A 13.5 kWh battery connects to the hybrid inverter.
The gateway separates selected backup circuits from the main service panel.
Refrigeration, lighting, and critical outlets are individually protected.
Use this for a grid-connected home with a backup loads panel. Utility interconnection, battery fault protection, and local rapid-shutdown rules require detailed design.
常見問題
What does the backup gateway do?
It isolates the backed-up circuits from the grid during an outage and coordinates the inverter source.
Can this run every circuit in the house?
No. This drawing intentionally supplies only selected essential loads from the backup panel.
Why is a PV disconnect shown?
It provides a labeled isolation point for the DC PV source before the inverter.