GE D30 Instruction Manual page 173

5 SETTINGS
The setting determines the sampling rate at which AC input signals (that is, current and voltage) are
AC INPUT WAVEFORMS
stored. 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.
When changes are made to the oscillography settings, all existing oscillography records will be CLEARED.
WARNING
b) DIGITAL CHANNELS
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PATH: SETTINGS PRODUCT SETUP
 DIGITAL CHANNELS
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A setting selects the FlexLogic™ operand state recorded in an oscillography trace. The length of
DIGITAL 1(63) CHANNEL
each oscillography trace depends in part on the number of parameters selected here. Parameters set to "Off" are ignored.
Upon startup, the relay will automatically prepare the parameter list.
c) ANALOG CHANNELS
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PATH: SETTINGS PRODUCT SETUP
 ANALOG CHANNELS
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These settings select the metering actual value recorded in an oscillography trace. The length of each oscillography trace
depends in part on the number of parameters selected here. Parameters set to "Off" are ignored. The parameters available
in a given relay are dependent on:
• The type of relay,
• The type and number of CT/VT hardware modules installed, and
• The type and number of analog input hardware modules installed.
Upon startup, the relay will automatically prepare the parameter list. A list of all possible analog metering actual value
parameters is presented in Appendix A: FlexAnalog parameters. The parameter index number shown in any of the tables is
used to expedite the selection of the parameter on the relay display. It can be quite time-consuming to scan through the list
of parameters via the relay keypad and display - entering this number via the relay keypad will cause the corresponding
parameter to be displayed.
All eight CT/VT module channels are stored in the oscillography file. The CT/VT module channels are named as follows:
<slot_letter><terminal_number>—<I or V><phase A, B, or C, or 4th input>
GE Multilin
 
OSCILLOGRAPHY DIGITAL CHANNELS
DIGITAL CHANNEL
Off
DIGITAL CHANNEL
Off
DIGITAL CHANNEL
Off
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DIGITAL CHANNEL 63:
Off
 
OSCILLOGRAPHY ANALOG CHANNELS
ANALOG CHANNEL 1:
Off
ANALOG CHANNEL 2:
Off
ANALOG CHANNEL 3:
Off

ANALOG CHANNEL 16:
Off
D30 Line Distance Protection System
Range: FlexLogic™ operand
1:
Range: FlexLogic™ operand
2:
Range: FlexLogic™ operand
3:
Range: FlexLogic™ operand
Range: Off, any FlexAnalog parameter
See Appendix A for complete list.
Range: Off, any FlexAnalog parameter
See Appendix A for complete list.
Range: Off, any FlexAnalog parameter
See Appendix A for complete list.
Range: Off, any FlexAnalog parameter
See Appendix A for complete list.
5.2 PRODUCT SETUP
5
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