Basic IED functions
Table 93. Self supervision with internal event list
Data Value
Recording manner Continuous, event controlled
List size 40 events, first in-first out
Table 94. 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
Table 95. 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 –
Table 96. 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 +/-2μs
1MRK511232-BEN E
Pre-configured
Product version: 1.2
68 ABB
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