Siemens siprotec 7SD5 User Manual

4 Technical Data
576
7SD5 Manual
C53000-G1176-C169-1
Commissioning Tools
Clock
Resolution for fault events 1 ms
Buffer battery Type: 3 V/1 Ah, Type CR 1/2 AA
self-discharging time approx. 10 years
Operational Measured Values
Switching device test
Time Synchronization DCF 77/IRIG-B-Signal (telegram format IRIG-B000)
Binary Input
Communication
Operating modes of the clock management
No. Operating mode Explanations
1 Internal Internal synchronization via RTC (default)
2 IEC 60870-5-103 External via system interface (IEC 60870-5-103)
3 GPS synchronization External synchronization using GPS interface
4 Time signal IRIG B External synchronization via IRIG B (telegram format
IRIG-B000)
5 Time signal DCF 77 External synchronization via DCF 77
6 Time signal synchro-box External synchronization using SIMEAS Sync. box
7 Pulse via binary input External synchronization with pulse via binary input
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Siemens siprotec 7SD5 Specifications

General

Brand	Siemens
Model	siprotec 7SD5
Category	Relays
Language	English