GE D90 Plus - Using Shared Operands in Metering

CHAPTER 11: METERING USING SHARED OPERANDS IN METERING
D90
PLUS
LINE DISTANCE PROTECTION SYSTEM – INSTRUCTION MANUAL 573
Map Phasor Sets
Range: Show Graph, Phasor Set 1, Phasor Set 2, Phasor Set 3,..., Phasor Set 12
Default: <Empty>
This option selects the phasor sets to display on each of the six available phasor graphs.
The “Show Graph” option must be selected for each of the six graphs to display the
specified phasors. Single or multiple phasor sets can be displayed on each graph as per
user preferences.
Using shared operands in metering
The EnerVista UR
Plus
Setup software groups the D90
Plus
system into the following eight
primary functions. Each function has its own settings and each generates its own outputs
in the form of operands.
• Communications
•Protection
•Automation
• Digital fault recorder (DFR)
• Metering
• Equipment manager
•Self-tests
• Front panel interface (HMI)
It is often desirable for an output from an element within one function to be available to an
element within another function. For example, it can be useful for the digital fault recorder
to record the output operands of any protection element. Consequently a fixed,
predetermined set of operands is available to each function, as shown.