
Technical Data
4.20 Additional Functions
SIPROTEC, 7SJ61, Manual
C53000-G1140-C210-1, Release date 02.2008
363
Operating Hours Counter
Circuit Breaker Maintenance
Trip Circuit Monitoring
Commissioning Aids
Clock
Display Range
Up to 7 digits
Criterion
Overshoot of an adjustable current threshold (element 50-1, BkrClosed
I
MIN)
Calculation methods
on true r.m.s value basis:
Σ
I
,
Σ
I
x
, 2P;
on instantaneous value basis:
I
2
t
Acquisition/conditioning of measured values
phase-selective
Evaluation
one threshold per subfunction
Number of saved statistic values
up to 13 digits
With one or two binary inputs.
- Phase rotation field check
- Operational measured values
- Circuit breaker test by means of control function
- Creation of a test measurement report
Time Synchronization
DCF 77/IRIG B-Signal (telegram format IRIG-B000)
Binary Input
Communication
Operating Modes for Time Tracking
No.
Operating Mode
Explanations
1
Internal
Internal synchronization using RTC (presetting)
2
IEC 60870-5-103
External synchronization using system interface (IEC 60870-5-103)
3
PROFIBUS FMS
External synchronization using PROFIBUS interface
4
Time signal IRIG B
External synchronization using IRIG B
5
Time signal DCF77
External synchronization using DCF 77
6
Time signal Sync. Box
External synchronization via the time signal SIMEAS-Synch.Box
7
Pulse via binary input
External synchronization with pulse via binary input
8
Field bus (DNP, Modbus)
External synchronization using field bus
9
NTP (IEC 61850)
External synchronization using system interface (IEC 61850)