Clear Relay Records - GE L30 Instruction Manual

5.2 PRODUCT SETUP
Lower the VOLTAGE CUT-OFF LEVEL and CURRENT CUT-OFF LEVEL with care as the relay accepts lower sig-
nals as valid measurements. Unless dictated otherwise by a specific application, the default settings of "0.02 pu" for
CURRENT CUT-OFF LEVEL and "1.0 V" for VOLTAGE CUT-OFF LEVEL are recommended.
NOTE
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PATH: SETTINGS PRODUCT SETUP
 CLEAR RELAY
 RECORDS
5
Selected records can be cleared from user-programmable conditions with FlexLogic operands. Assigning user-programma-
ble pushbuttons to clear specific records are typical applications for these commands. Since the L30 responds to rising
edges of the configured FlexLogic operands, they must be asserted for at least 50 ms to take effect.
Clearing records with user-programmable operands is not protected by the command password. However, user-program-
mable pushbuttons are protected by the command password. Thus, if they are used to clear records, the user-programma-
ble pushbuttons can provide extra security if required.
For example, to assign user-programmable pushbutton 1 to clear demand records, the following settings should be applied.
1. Assign the clear demand function to pushbutton 1 by making the following change in the


CLEAR RELAY RECORDS

CLEAR DEMAND:
2. Set the properties for user-programmable pushbutton 1 by making the following changes in the

SETUP USER-PROGRAMMABLE PUSHBUTTONS
PUSHBUTTON 1 FUNCTION:
PUSHBTN 1 DROP-OUT TIME:
5-26

CLEAR RELAY RECORDS
CLEAR FAULT REPORTS:
Off
CLEAR EVENT RECORDS:
MESSAGE
Off
CLEAR OSCILLOGRAPHY?
MESSAGE
No
CLEAR DATA LOGGER:
MESSAGE
Off
CLEAR ARC AMPS 1:
MESSAGE
Off
CLEAR ARC AMPS 2:
MESSAGE
Off
CLEAR CHNL STATUS:
MESSAGE
Off
RESET UNAUTH ACCESS:
MESSAGE
Off
menu:
" "
PUSHBUTTON 1 ON
"Self-reset"
"0.20 s"
L30 Line Current Differential System
Range: FlexLogic operand
Range: FlexLogic operand
Range: FlexLogic operand
Range: FlexLogic operand
Range: FlexLogic operand
Range: FlexLogic operand
Range: FlexLogic operand
Range: FlexLogic operand
 menu:
USER PUSHBUTTON 1
5 SETTINGS
5.2.3 CLEAR RELAY RECORDS

SETTINGS PRODUCT SETUP

SETTINGS PRODUCT
GE Multilin