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ABB RELION REX640 - 9.12.3 Functionality

ABB RELION REX640
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9.12.2 Function block
Figure 931: Function block
9.12.3 Functionality
The high speed bus transfer function HSABTC is used for securing alternative
(standby) supply for loads connected to a busbar, thus minimizing disturbances
for the primary process.
Electrical power supply stability and availability is most essential for many industrial
processes. Interruptions in the power supply can cause considerable production
1MRS759142 F
Control functions
REX640
Technical Manual
1759

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