GE T60 Instruction Manual page 263

5 SETTINGS
Firmware version 7.0 allows the N60 to support a maximum of four Logical Device PMUs (Logical Device 2 through 5) and
four aggregators (located in Logical Device 1 (LD1)), while other UR family members support one PMU and only one
aggregator. The control blocks for the aggregators are located in LD1. A 64 char LDName setting is provided, see figure
below..
Figure 5–45: N60 SUPPORT FOR FOUR LOGICAL DEVICE PMUS
The specifics of implementation by model number is summarized in the table below.
Table 5–13: IMPLEMENTATION BY MODEL NUMBER
MODEL NUMBER OF
PMUS
N60 4
D60, F60, G60, L30, 1
L90, T60
Precise time input to the relay from the international time standard, via either IRIG-B or PTP, is vital for correct syn-
chrophasor measurement and reporting. For IRIG-B, a DC level shift IRIG-B receiver must be used for the phasor
measurement unit to output proper synchrophasor values.
NOTE
GE Multilin
NUMBER OF NUMBER OF ANALOG
AGGREGATORS INPUTS
4 16
1 16
T60 Transformer Protection System
5.4 SYSTEM SETUP
COMMENT
1, 2, or 4 PMUs can be used
5
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