Shared Operands - GE D90 Plus Instruction Manual

CHAPTER 6: COMMUNICATIONS

Shared operands

PLUS
D90 LINE DISTANCE PROTECTION SYSTEM – INSTRUCTION MANUAL
Plus
The EnerVista UR Setup software groups the D90
primary functions. Each function has its own setting parameters 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).
However, it is often desirable for an output from an element within one function can be
available to an element within another function. For instance, it may 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 as to each function as
shown below.
Figure 149: Default operand list by function
The content of each operand list is dependent on the selected order code.
The shared operands functionality expands upon this system. With this feature, an output
from any element can be assigned as a shared operand within the EnerVista UR
Setup software. These signals can then be assigned as inputs to other functions.
SHARED OPERANDS
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system into the following seven
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