Data Logger - GE T35 Instruction Manual

5.2 PRODUCT SETUP
An setting selects the metering actual value recorded in an oscillography trace. The length of each oscil-
ANALOG CHANNEL
lography 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: (a) the type of relay, (b) the type and number of CT/VT hardware
modules installed, and (c) 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/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>
The fourth current input in a bank is called IG, and the fourth voltage input in a bank is called VX. For example, F2-IB desig-
nates the IB signal on Terminal 2 of the CT/VT module in slot F. If there are no CT/VT modules and Analog Input modules,
no analog traces will appear in the file; only the digital traces will appear.
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PATH: SETTINGS PRODUCT SETUP

# DATA LOGGER

#
5
The data logger samples and records up to 16 analog parameters at a user-defined sampling rate. This recorded data may
be downloaded to the enerVista URPC Setup software and displayed with 'parameters' on the vertical axis and 'time' on the
horizontal axis. All data is stored in non-volatile memory, meaning that the information is retained when power to the relay is
lost.
For a fixed sampling rate, the data logger can be configured with a few channels over a long period or a larger number of
channels for a shorter period. The relay automatically partitions the available memory between the channels in use.
Changing any setting affecting Data Logger operation will clear any data that is currently in the log.
NOTE
• DATA LOGGER RATE: This setting selects the time interval at which the actual value data will be recorded.
• DATA LOGGER CHNL 1(16): This setting selects the metering actual value that is to be recorded in Channel 1(16) of
the data log. 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
shown 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/display – entering this number via the relay keypad will cause the corresponding
parameter to be displayed.
• DATA LOGGER CONFIG: This display presents the total amount of time the Data Logger can record the channels not
selected to "Off" without over-writing old data.
5-22
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DATA LOGGER
DATA LOGGER RATE:
1 min
DATA LOGGER CHNL
MESSAGE
Off
DATA LOGGER CHNL
MESSAGE
Off
DATA LOGGER CHNL 16:
MESSAGE
Off
DATA LOGGER CONFIG:
MESSAGE
0 CHNL x
T35 Transformer Management Relay
Range: 1 sec; 1 min, 5 min, 10 min, 15 min, 20 min, 30
min, 60 min
Range: Off, any FlexAnalog parameter. See Appendix A:
1:
FlexAnalog Parameters for complete list.
Range: Off, any FlexAnalog parameter. See Appendix A:
2:
FlexAnalog Parameters for complete list.
↓
Range: Off, any FlexAnalog parameter. See Appendix A:
FlexAnalog Parameters for complete list.
Range: Not applicable - shows computed data only
0.0 DAYS
5 SETTINGS
5.2.9 DATA LOGGER
GE Multilin