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UPS5000-S-1200 kVA
User Manual
Figure 2-28 1+1 parallel system schematic diagram
2.4.3 Single UPS Dual-Bus System
The dual-bus system consists of two independent 1.2 MW systems. Each 1.2 MW
system consists of one or two 1.2 MW UPS systems. One of the two UPS systems
is a master system, and the other is a slave system. This design makes the dual-
bus system highly reliable and suitable for loads with multiple input terminals. An
optional static transfer switch (STS) can be installed to start the bus
synchronization controller (BSC). The UPS systems work in normal mode or bypass
mode. The conceptual diagram uses a dual-bus system with a single UPS as an
example.
Issue 10 (2023-05-26)
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