Front Panel Interface - GE D90 Plus Instruction Manual

CHAPTER 2: PRODUCT DESCRIPTION

Front panel interface

PLUS
D90 LINE DISTANCE PROTECTION SYSTEM – INSTRUCTION MANUAL
TRANSIENT RECORDER
Storage capacity:................................................one record with all available channels at 32 samples per
Number of records:............................................1 to 64
Sampling rate:......................................................16 to 256 samples per power cycle
Timestamp accuracy:.......................................<10 μs per second of recording
Analog channels: ................................................up to twelve 16-bit, unprocessed, AC input channels
Analog channel data:........................................any FlexAnalog quantity
Digital channels:..................................................up to 128
Digital channel data: .........................................any contact input, direct input, remote input, virtual input,
Sampled channels:.............................................up to 24
Sampled channel data:....................................16-bit, unprocessed sampled channels
Triggers:...................................................................any digital channel change of state, undervoltage,
Storage modes:....................................................automatic overwrite, protected
Triggering modes:...............................................time window from rising edge of trigger, continuous
Pre-trigger window: ...........................................0 to 100%
Data storage:........................................................non-volatile memory
ANNUNCIATOR
Inputs:.......................................................................288
Windows per page:............................................12 to 48
Pages:.......................................................................up to 24
Sequence:...............................................................manual reset, locking
Off indication: .......................................................alarm inactive and reset
Flashing indication:............................................alarm active and not acknowledged, alarm inactive and not
On indication:........................................................alarm active and acknowledged, alarm inactive and not
Priority:.....................................................................by active window and page number
Data storage:........................................................non-volatile memory
CONTROL DISPLAY
Devices: ...................................................................status and control of up to 8 power system devices
Pushbuttons: .........................................................30 dedicated user-programmable pushbuttons
Functionality: ........................................................supports select-before-operate functionality
DIGITAL FAULT RECORDER DISPLAY
Sequence of events: ..........................................displays the stored sequence of events record
Fault reports:.........................................................display and retrieval of the critical metrics of a stored fault
Transient records:...............................................retrieval of a stored transient record
Disturbance records:.........................................retrieval of a stored disturbance record
EQUIPMENT MANAGER DISPLAY
Battery monitoring:............................................displays the current battery voltage and alarm states
cycle for 1 minute
automation logic operand, or FlexLogic™ operand
overvoltage, undercurrent, overcurrent, underfrequency,
overfrequency, rate of change of frequency, one user-
programmable, one block
recording as long as trigger is active
acknowledged
reset
report
SPECIFICATIONS
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