Metering Logic Operands - GE D90 Plus Instruction Manual

CHAPTER 11: METERING

Metering logic operands

PLUS
D90 LINE DISTANCE PROTECTION SYSTEM – INSTRUCTION MANUAL
Figure 491: User-configurable metering logic operands window
The left side of this screen displays all operands that are currently available to the D90
The metering logic operands are displayed by selecting the Metering tree item. Each
operand can be renamed with a user-specified value to provide additional information or
match specific applications.
User Configured Event Name
Range: up to 20 alphanumeric characters
Default: ---
Each available metering logic operand can be renamed to a user-specified value. This
feature allows users to rename operands to allow for clearer identification or to match
specific applications. The new operand name will appear in protection and automation
logic, in settings that take operands as their value, and in event reports.
The following metering logic operands are available for the D90
alphabetically by operand syntax. The definitions listed below reflect the default operand
names. If desired, these operands can be assigned user-defined names through the
Settings > Configure FlexOperands menu item.
Data logger operands
D LOG CH1 HI ALM ....................................Asserted while the data logger channel 1 high alarm is active.
D LOG CH1 HI-HI ALM..............................Asserted while the data logger channel 1 high-high alarm is
D LOG CH1 LO ALM ...................................Asserted while the data logger channel 1 low alarm is active.
D LOG CH1 LO-LO ALM............................Asserted while the data logger channel 1 low-low alarm is
D LOG CH2 ....................................................The operands listed above are also available for data loggers 2
Phasor measurement unit operands
PMU 1 CURR TRIGGER..............................Asserted when the overcurrent trigger of phasor measurement
active.
active.
through 16.
unit 1 operates.
SHARED OPERANDS
Plus
.
Plus
. They are listed
545