Using Shared Operands In Digital Fault Recorder - GE D90 Plus Instruction Manual

CHAPTER 10: DIGITAL FAULT RECORDER

Using shared operands in digital fault recorder

PLUS
D90 LINE DISTANCE PROTECTION SYSTEM – INSTRUCTION MANUAL
Block Trigger
Range: any FlexLogic operand
Default: Off
The FlexLogic operand assigned to this setting blocks triggering of the disturbance
recorder analog channel.
Figure 461: Analog channel trigger logic
Plus
The EnerVista UR Setup software groups the D90
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.
USING SHARED OPERANDS IN DIGITAL FAULT RECORDER
Plus
system into the following eight
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