GE Multilin UR Series N60 Instruction Manual page 201

5 SETTINGS
Depending on the applied filter, the Synchrophasors that are produced are classified as either P (protection) or M (meter-
ing) class Synchrophasors as described in the latest C37.118 standard. Sychrophasors available within the UR that have
no filtering applied are classified as NONE. Depending on the model number, the UR can support up to a maximum of three
DSP's. The four PMUs within the UR can be configured to read the sychrophasors from any of the six sources at a user
programmable rate. When one source is selected by one PMU it cannot be used in other PMUs. In firmware version 6.0 a
maximum of two aggregators allow the user to aggregate selected PMUs as per IEC 37.118 to form a custom data set that
is sent to a client optimizing bandwidth. As with sources, a given aggregator can aggregate data form PMUs with the same
rate. With firmware 6.0 a maximum of two PMUs can be set to a reporting rate of 120 Hz for a 60 Hz system (or 100Hz for
a 50 Hz system) and each aggregator can be configured to support a TCP or a UDP connection to a client allowing the UR
to support a total of two TCP connections or two UDP connections or a combination of a TCP and a UDP connection per
aggregator for real-time data reporting. Also note that if hard fiber is used it will have no impact on this specification.
Precise IRIG-B input is vital for correct synchrophasor measurement and reporting. A DC level shift IRIG-B receiver
must be used for the phasor measurement unit to output proper synchrophasor values.
NOTE
The PMU settings are organized in five logical groups as follows.

PATH: SETTINGS SYSTEM SETUP
 PHASOR MEASUREMENT
 UNIT 1
MESSAGE
MESSAGE
MESSAGE
MESSAGE
GE Multilin N60 Network Stability and Synchrophasor Measurement System

PHASOR MEASUREMENT UNIT
 PMU 1 BASIC
 CONFIGURATION
 PMU 1
 AGGREGATORS
 PMU 1
 CALIBRATION
 PMU 1
 TRIGGERING
 PMU 1
 RECORDING

PHASOR MEASUREMENT UNIT 1(4)
See page 5-82.
See page 5-86.
See page 5-88.
See page 5-89.
See page 5-96.
5.4 SYSTEM SETUP
5
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