Siemens 7SR18 Solkor - Basic Scheme with Remote Deadtime Delay

7SR18 Applications Guide
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8.1.2 Basic Scheme with Remote Deadtime delay
Simple Auto-reclose scheme with added Remote Close after Local CB has Closed by Blocking Remote with Local
CB Open (By delaying remote deadtime). If Local fails to Close, Remote will not close.
Local Remote
Local CB Position
Remote CB Position
Local Trip
Remote Trip
Local Close Pulse
Remote Close Pulse
BI-1 / CB Open / 85S-1
85R-1
85S-1
85R-1 / V2 / 79 Deadtime Inhibit
50-1 / 87L-1 / BO2
85S-1
87L-1 / BO2
BO5
85R-485S-4
OpenClosed Closed
Remote Deadtime
Local Deadtime
OpenClosed Closed
Local CB Position
Source
Figure 8.1.2-1 Scheme with Remote Close Sequence of events
Figure 8.1.2-2 Local CB Input Mapping