GE L90 Instruction Manual page 82
Line differential relay
ur series
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Also See for L90:
- Instruction manual (900 pages) ,
- Communications manual (532 pages) ,
- Instruction manual (700 pages)
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4.2 FACEPLATE INTERFACE
b) LED PANELS 2 AND 3
These panels provide 48 amber LED indicators whose operation is controlled by the user. Support for applying a custom-
ized label beside every LED is provided.
User customization of LED operation is of maximum benefit in installations where languages other than English are used to
communicate with operators. Refer to the User-Programmable LEDs section in Chapter 5 for the settings used to program
the operation of the LEDs on these panels.
c) DEFAULT LABELS FOR LED PANEL 2
4
The default labels are intended to represent:
•
GROUP 1...6: The illuminated GROUP is the active settings group.
•
BREAKER n OPEN: The breaker is open.
•
BREAKER n CLOSED: The breaker is closed.
•
BREAKER n TROUBLE: A problem related to the breaker has been detected.
•
SYNCHROCHECK NO n IN-SYNCH: Voltages have satisfied the synchrocheck element.
•
RECLOSE ENABLED: The recloser is operational.
•
RECLOSE DISABLED: The recloser is not operational.
•
RECLOSE IN PROGRESS: A reclose operation is in progress.
•
RECLOSE LOCKED OUT: The recloser is not operational and requires a reset.
Firmware revisions 2.9x and earlier support eight user setting groups; revisions 3.0x and higher support
six setting groups. For convenience of users using earlier firmware revisions, the relay panel shows eight
setting groups. Please note that the LEDs, despite their default labels, are fully user-programmable.
NOTE
The relay is shipped with the default label for the LED panel 2. The LEDs, however, are not pre-programmed. To match the
pre-printed label, the LED settings must be entered as shown in the User-Programmable LEDs section of Chapter 5. The
LEDs are fully user-programmable. The default labels can be replaced by user-printed labels for both panels as explained
in the following section.
4-6
Figure 4–5: LED PANELS 2 AND 3 (INDEX TEMPLATE)
SETTINGS IN USE
GROUP 1
GROUP 2
GROUP 3
GROUP 4
GROUP 5
GROUP 6
GROUP 7
GROUP 8
Figure 4–6: C60/D30/D60/F35/F60 LED PANEL 2 (DEFAULT LABELS)
L90 Line Differential Relay
BREAKER 1
SYNCHROCHECK
OPEN
NO1 IN-SYNCH
CLOSED
NO2 IN-SYNCH
TROUBLE
RECLOSE
BREAKER 2
ENABLED
OPEN
DISABLED
CLOSED
IN PROGRESS
TROUBLE
LOCKED OUT
4 HUMAN INTERFACES
GE Multilin
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