Advanced Enervista 469 Setup Features - GE 469 Instruction Manual

4.6

Advanced EnerVista 469 Setup Features

4.6.1 Triggered Events
4.6.2 Waveform Capture (Trace Memory)
4–38
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 data captured during specific triggered events.
The EnerVista 469 Setup software can be used to capture waveforms (or view trace
memory) from the 469 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 traces can be buffered (stored) with the buffer/cycle trade-off.
The following waveforms can be captured:
• Phase A, B, and C currents (I
• Differential A, B, and C currents (I
• Ground currents (I
g
• Phase A-N, B-N, and C-N voltages (V
• Phase A-B and B-C (V
• Relay output status.
With EnerVista 469 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.
, I , and I )
a b c
, I , and I
diffa diffb
)
, V , and V
an bn
and V ) for open-delta connections
ab bc
Number of available files
469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL
CHAPTER 4: INTERFACES
)
diffc
) for wye connections
cn
Save waveform to a file