Irig-B Board; Figure 17: Irig-B Board - GE MiCOM P40 Technical Manual

P446SV
Terminal Number
Terminal 4
Terminal 5
Terminal 6
Terminal 7
Terminal 8
Terminal 9
Terminal 10
Terminal 11
Terminal 12
Terminal 13
Terminal 14
Terminal 15
Terminal 16
Terminal 17
Terminal 18
6.6

IRIG-B BOARD

Figure 17: IRIG-B board

The IRIG-B board can be fitted to provide an accurate timing reference for the device. The IRIG-B signal is
connected to the board via a BNC connector. The timing information is used to synchronise the IED's internal real-
time clock to an accuracy of 1 ms. The internal clock is then used for time tagging events, fault, maintenance and
disturbance records.
IRIG-B interface is available in modulated or demodulated formats.
P446SV-TM-EN-1
Relay 2 NO
Relay 3 NO
Relay 3 NO
Relay 4 NO
Relay 4 NO
Relay 5 NO
Relay 5 NO
Relay 6 NO
Relay 6 NO
Relay 7 changeover
Relay 7 changeover
Relay 7 common
Relay 8 changeover
Relay 8 changeover
Relay 8 common
Chapter 3 - Hardware Design
Output Relay
47