ABB Relion RES670 Product Manual page 73

Phasor measurement unit RES670 2.1 IEC
Basic IED functions
Table 106. Self supervision with internal event list
Data
Recording manner
List size
Table 107. Time synchronization, time tagging
Function
Time tagging accuracy of the synchrophasor data
Table 108. GPS time synchronization module (GTM)
Function
Receiver
Time to reliable time reference with antenna in new
position or after power loss longer than 1 month
Time to reliable time reference after a power loss
longer than 48 hours
Time to reliable time reference after a power loss
shorter than 48 hours
Table 109. GPS – Antenna and cable
Function
Max antenna cable attenuation
Antenna cable impedance
Lightning protection
Antenna cable connector
Accuracy
ABB
M11963-1 v5
Value
Continuous, event controlled
40 events, first in-first out
M12331-1 v7
SEMOD55660-2 v3
Range or value Accuracy
– ±1µs relative UTC
<30 minutes –
<15 minutes –
<5 minutes –
SEMOD55693-2 v5
1MRK 511 367-BEN D
Value
± 1 µs
Value
26 db @ 1.6 GHz
50 ohm
Must be provided externally
SMA in receiver end
TNC in antenna end
+/-1μs
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