Irig-B - GE UR Series L90 Instruction Manual

3 HARDWARE
IRIG-B is a standard time code format that allows stamping of events to be synchronized among connected devices within
1 millisecond. The IRIG time code formats are serial, width-modulated codes that can be either DC level shifted or ampli-
tude modulated (AM). Third party equipment is available for generating the IRIG-B signal; this equipment can use a GPS
satellite system to obtain the time reference so that devices at different geographic locations can be synchronized.
Using an amplitude modulated receiver causes errors up to 1 ms in event time-stamping.
NOTE
Using an amplitude modulated receiver also causes errors of up to 1 ms in metered synchrophasor values.
NOTE
GE Multilin
Figure 3–26: OPTIONS FOR THE IRIG-B CONNECTION
L90 Line Current Differential System
3.2 WIRING

3.2.10 IRIG-B

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