Hitachi Relion 670 Series Product Manual page 155

Line differential protection RED670
Version 2.2
Basic IED functions
Table 209. Self supervision with internal event list
Data
Recording manner
List size
Table 210. Time synchronization, time tagging
Function
Time tagging accuracy of the synchrophasor data
Time tagging resolution, events and sampled measurement values
Time tagging error with synchronization once/min (minute pulse synchronization), events and sampled
measurement values
Time tagging error with SNTP synchronization, sampled measurement values
Table 211. Time synchronization PTP: IEC/IEEE 61850-9-3
Supported types of clock
Accuracy
Number of nodes
Ports supported
Table 212. 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 213. GPS – Antenna and cable
Function
Max antenna cable attenuation
Antenna cable impedance
Lightning protection
Antenna cable connector
Accuracy
Hitachi Energy
M11963-1 v5
Value
Continuous, event controlled
40 events, first in-first out
M12331-1 v9
GUID-8AEB81D0-1731-46DF-A206-D2E758823575 v2
Boundary Clock (BC), Ordinary Clock (OC), Transparent Clock (TC)
According to standard IEC/IEEE 61850-9-3
According to standard IEC/IEEE 61850-9-3
All rear Ethernet ports
SEMOD55660-2 v3
Range or value
–
<30 minutes
<15 minutes
<5 minutes
SEMOD55693-2 v5
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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Accuracy
±1µs relative UTC
–
–
–
1MRK 505 379-BEN R
Value
± 1 µs
1 ms
± 1.0 ms typically
± 1.0 ms typically
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