Basic IED functions
M11963-1 v5
Table 138. Self supervision with internal event list
Data
Value
Recording manner
Continuous, event controlled
List size
40 events, first in-first out
M12331-1 v7
Table 139. Time synchronization, time tagging
Function
Value
Time tagging resolution, events and sampled measurement values
1 ms
Time tagging error with synchronization once/min (minute pulse synchronization), events and sampled
measurement values
± 1.0 ms typically
Time tagging error with SNTP synchronization, sampled measurement values
± 1.0 ms typically
SEMOD55660-2 v3
Table 140. GPS time synchronization module (GTM)
Function
Range or value
Accuracy
Receiver
–
±1µs relative UTC
Time to reliable time reference with antenna in new
position or after power loss longer than 1 month
<30 minutes
–
Time to reliable time reference after a power loss
longer than 48 hours
<15 minutes
–
Time to reliable time reference after a power loss
shorter than 48 hours
<5 minutes
–
SEMOD55693-2 v5
Table 141. GPS – Antenna and cable
Function
Value
Max antenna cable attenuation
26 db @ 1.6 GHz
Antenna cable impedance
50 ohm
Lightning protection
Must be provided externally
Antenna cable connector
SMA in receiver end
TNC in antenna end
Accuracy
+/-1μs
1MRK 511 361-BEN B
Bay control REC670 2.1 IEC
Product version: 2.1
ABB
89