GE Multilin 350 Series User Manual

2–18 350 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL
ELECTRICAL INSTALLATION CHAPTER 2: INSTALLATION
IRIG-B
IRIG-B is a standard time code format that allows time stamping of events to be
synchronized among connected devices within 1 millisecond. The IRIG time code formats
are serial, width-modulated codes which can be either DC level shift or amplitude
modulated (AM) form. The type of form is auto-detected by the 350 relay. Third party
equipment is available for generating the IRIG-B signal; this equipment may use a GPS
satellite system to obtain the time reference so that devices at different geographic
locations can also be synchronized.
Figure 20: IRIG-B connection
GE MULTILIN
350 RELAY
IRIG-B(-)
RECEIVER
TO OTHER DEVICES
RG58/59 COAXIAL CABLE
GPS SATELLITE SYSTEM
GPS CONNECTION
OPTIONAL
IRIG-B(+)
E1
D1
+
–
898741.CDR
IRIG-B
TIME CODE
GENERATOR
(DC SHIFT OR
AMPLITUDE MODULATED
SIGNAL CAN BE USED)
Courtesy of NationalSwitchgear.com

GE Multilin 350 Series Specifications

General

Brand	GE
Model	Multilin 350 Series
Category	Relays
Language	English