APC SYMMETRA MW II User Manual download pdf (Page 11)

7Symmetra MW II with External Bypass Static Switch Operation Manual - 990-1377E-001

Operation

Operation Modes

Normal operation

During online operation, the critical load is supported by the inverters. While the UPS system is

operating in this mode, a single-line diagram will appear on the screen. The green line indicates the

power flow from the utility, through the UPS, and then to the load.

Battery operation

During battery operation, the critical load is supported by the inverters. The main inverter is supplied by

battery power, ensuring uninterrupted support to the load. While the UPS system is operating in battery

operation, a single-line diagram will appear on the screen. The green line indicates the power flow from

the batteries, through the main inverters, and then to the load.

Battery

Main Inverter

Delta Inverter

External Bypass SSW

Battery

Delta Inverter

Main Inverter

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APC SYMMETRA MW II User Manual Page 11