GE C70 Instruction Manual page 318

PRODUCT SETUP
Table 5-13: Oscillography cycles/record example
Records CT/VTs
3 1
3 1
16 1
16 1
32 1
32 1
3 2
3 2
16 2
— A new record automatically overwrites an older record when
TRIGGER MODE
Overwrite."
TRIGGER POSITION
position of 25% consists of 25% pre- and 75% post-trigger data.
— Always captured in oscillography and can be any FlexLogic parameter (element state, contact input,
TRIGGER SOURCE
virtual output, and so on). The relay sampling rate is 64 samples per cycle.
AC INPUT WAVEFORMS
Reducing the sampling rate allows longer records to be stored. This setting has no effect on the internal sampling rate of
the relay, which is always 64 samples per cycle. That is, it has no effect on the fundamental calculations of the device.
5
When changes are made to the oscillography settings, all existing oscillography records are cleared.
5.3.9.2 Digital channels
SETTINGS  PRODUCT SETUP  OSCILLOGRAPHY  DIGITAL CHANNELS
 DIGITAL CHANNELS

DIGITAL 1(63) CHANNEL
each oscillography trace depends in part on the number of parameters selected here. Parameters set to "Off" are ignored.
To populate quickly the rows in the Offline Window, use Ctrl C/V to copy/paste, or click then double-click a row to display a
quick selection window.
5-114
Sample rate Digital
channels
32 32
64 32
32 32
64 32
32 32
64 32
32 32
64 32
32 32
— Set this to a percentage of the total buffer size (for example, 10%, 50%, 75%, and so on). A trigger
— Determines the sampling rate at which AC input signals (that is, current and voltage) are stored.
DIGITAL CHANNEL 1:

Off
DIGITAL CHANNEL 63:

Off
— This setting selects the FlexLogic operand state recorded in an oscillography trace. The length of
Figure 5-49: Quick selection window
Analog
channels
16
16
16
16
16
16
16
16
16
Range: FlexLogic operand

Range: FlexLogic operand
C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL
CHAPTER 5: SETTINGS
Cycles per
record
2399
1450
666
402
352
213
1516
851
421
is set to "Automatic
TRIGGER MODE