Figure 3.34-19 Diagram of the operation process of BPAS4
3.34.3 Application Scope
Backup power automatic switching of busbar mainly applies to circumstances where
single-busbar stage of single-ended substation, for example, stage backup power automatic
switching at load side of main transformer and bridge backup power automatic switching at power
supply side. The typical application configuration of backup power automatic switching device is
shown in Figure 3.34-20.
Figure 3.34-20 The typical application configuration of backup power automatic switching device
Backup power supply cannot be put into service unless operational power supply is actually
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