Waveform Capture - GE 469 Instruction Manual

3.2 469PC SOFTWARE INTERFACE
The 469PC software can be used to capture waveforms from the 469 at the instant of a trip. A maximum of 64 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 waveforms captured are: Phase Currents A, B, and C; Differential Currents A, B, and C; Ground Current; Phase Volt-
ages A-N, B-N, and C-N.
1. With 469PC running and communications established, select the Actual > Waveform Capture menu item to open the
Waveform Capture window.
2. The waveform of Phase A current of the last 469 trip will appear. The date and time of this trip is displayed on the top
of the window. The RED vertical line indicates the trigger point of the relay.
3
3. Press the Setup button to enter the Graph Attribute page. Program the graphs to be displayed by selecting the pull
down menu beside each Graph Description. Change the Color, Style, Width, Group#, and Spline selection as
desired. Select the same Group# for all parameters to be scaled together.
4. Click Save to store these graph attributes then OK to close this window.
5. Select the graphs to display by checking the appropriate checkboxes.
6. The Save button can be used to store the current image on the screen, and Open can be used to recall a saved
image. Print will copy the window to the system printer.
MODE SELECT
Click to view Cursor Lines 1, 2, or
Difference (Delta) values for the
graph
LEVEL
Displays the
value of the
graph at the
solid cursor
line
CHECK BOX
Toggle the check boxes
to view desired graphs
3-14
Courtesy of NationalSwitchgear.com
TRIGGER
Click to manually trigger
and capture waveforms
BUTTONS
Print, Help, Save (to save
graph to a file), Open (to
open a graph file), Zoom In
and Out
Figure 3–10: WAVEFORM CAPTURE
469 Motor Management Relay
TRIGGER CAUSE
Displays the cause of
the trigger
DATE/TIME
Displays the date and time
of the trigger cause
CURSOR LINES
To move lines, move the mouse
pointer over the cursor line; hold
the left mouse button and drag the
cursor line to a new location
3 USER INTERFACES

3.2.6 WAVEFORM CAPTURE

WAVEFORM
The relay
waveform data
808730A2.CDR
GE Multilin