Advanced Enervista 489 Setup Features; Triggered Events; Waveform Capture (Trace Memory) - GE Multilin 489 Instruction Manual

CHAPTER 4: INTERFACES
4.6

Advanced EnerVista 489 Setup Features

4.6.1

Triggered Events

4.6.2

Waveform Capture (Trace Memory)

489 GENERATOR MANAGEMENT RELAY – INSTRUCTION MANUAL
Courtesy of NationalSwitchgear.com
While the interface is in either on-line or off-line mode, data generated by triggered
specified parameters can be viewed and analyzed via one of the following:
• Event Recorder: The event recorder captures contextual data associated with the
last 256 events, listed in chronological order from most recent to the oldest.
• Oscillography: The oscillography waveform traces provide a visual display of
power system and relay operation data captured during specific triggered events.
The EnerVista 489 Setup software can be used to capture waveforms (or view trace
memory) from the 489 relay at the instance of a trip. A maximum of 128 cycles can be
captured and the trigger point can be adjusted to anywhere within the set cycles. A
maximum of 16 waveforms can be buffered (stored) with the buffer/cycle trade-off.
The following waveforms can be captured:
• Phase A, B, and C currents (I
• Neutral end A, B, and C currents (I
• Ground currents (I )
g
• Phase A-N, B-N, and C-N voltages (V
With EnerVista 489 Setup running and communications established,
select the Actual > Waveform Capture menu item to open the
waveform capture setup window:
Files to be saved or viewed
Click on Trigger Waveform to trigger a waveform capture.
The waveform file numbering starts with the number zero in the 489; therefore, the
maximum trigger number will always be one less then the total number triggers
available.
, I , and I )
a b c
, I , and I
neutral_a neutral_b
, V , and V )
a b c
Number of available files
Save waveform to a file
)
neutral_c
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