3.7.2
IRIG‑B00X
NOTICE!
Requirement: An IRIG‑B00X time code generator is needed. IRIG‑B004 and higher will
support/transmit the “year information”.
If you are using an IRIG time code that does not support the “year information”
(IRIG‑B000, IRIG‑B001, IRIG‑B002, IRIG‑B003), you have to set the “year” manually within
the device. In these cases the correct year information is a precondition for a properly
working IRIG‑B.
Principle - General Use
The IRIG‑B standard is the most used standard to synchronize the time of protection
devices in medium voltage applications. The protection device supports IRIG‑B according
to the IRIG STANDARD 200-04.
This means that all time synchronization formats IRIG‑B00X (IRIG‑B000 / B001 / B002 /
B003 / B004 / B005 / B006 / B007) are supported. It is recommended to use IRIG‑B004
and higher which also transmits the “year information”.
The system time of the protection device is being synchronized with the connected IRIG‑B
code generator once a second. The accuracy of the used IRIG‑B code generator can be
increased by connecting a GPS-receiver to it.
E_F47
GPS Satellite Signal (optional)
GPS Connection (optional)
SNTP-Server
Protective Relay
To Other Devices
Operational
Ph OC Trip
Gnd OC Trip
Ph Inst Trip
Gnd Inst Trip
Pickup
Bkr Failure
Maint. Mode
Info
Ack/Rst
Ok
CTRL
+
Twisted Pair Cable
-
The location of the IRIG‑B interface depends to the device type. Please refer to the wiring
diagram supplied with the protective device.
132
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EMR-3MP0
3 Communication Protocols
3.7 Time Synchronization