Huawei UPS5000-H User Manual page 33

UPS5000-H-(1200 kVA-1600 kVA)
User Manual (100 kVA Power Modules)
S-ECO is a working mode that combines the economy control operation (ECO)
mode and inverter mode. In S-ECO mode, the UPS directly supplies power to loads
through the bypass and automatically determines whether to compensate for load
harmonics based on load conditions to achieve higher efficiency. It ensures
uninterruptible (0 ms) power supply and reduces the impact of load harmonics on
the power grid. This mode can be set on the LCD or WebUI.
●
●
●
Figure 2-8 UPS conceptual diagram in S-ECO mode
Issue 05 (2021-10-13)
NO TE
● Only the three-phase four-wire 380 V AC/400 V AC/415 V AC (line voltage) model
supports the super economy control operation (S-ECO) mode.
● The system can work in S-ECO mode only when the hardware of both the power
module and bypass module supports the S-ECO mode.
● If the hardware of the existing power module or bypass module does not support the S-
ECO mode, the ECO mode is displayed (2–5 ms interruption may occur during the
transfer of this traditional ECO mode). If the UPS works in S-ECO mode but the
hardware of the power module or bypass module is changed and does not support the
S-ECO mode, a dialog box is displayed, indicating that the hardware does not support
the S-ECO mode. After you click OK, the UPS works in ECO mode.
When the bypass input voltage waveform is good (the voltage and frequency
are within the preset bypass range, the PF is greater than 0.5, and the load
rate is greater than 5%), the UPS works in bypass mode preferentially and the
inverter starts for hot backup to achieve 0 ms transfer. When the load
harmonic is greater than the preset value, the inverter output compensates
for the harmonic component in the load.
If the bypass input voltage waveform is poor (the voltage and frequency
exceed the preset bypass range, the PF is less than 0.5, or the load rate is less
than 5%), the UPS works in inverter mode preferentially.
In either bypass mode or inverter mode, the rectifier is started all the time
and charges batteries using a charger.
NO TE
Manual startup is required to ensure that the inverter is in standby state and the power
flow has reached the load side through the inverter.
Copyright © Huawei Technologies Co., Ltd.
2 Product Overview
23