GE L90 User Manual

x L90 LINE CURRENT DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL
TABLE OF CONTENTS
10.6.1 Overview ............................................................................................................................. 10-51
10.6.2 Multi-ended fault locator............................................................................................. 10-51
10.6.3 Single-ended fault locator.......................................................................................... 10-58
11 MAINTENANCE 11.1 Monitoring .............................................................................................................11-1
11.1.1 Devices with Site Targets ...............................................................................................11-1
11.1.2 Data with Modbus Analyzer..........................................................................................11-1
11.2 General maintenance ..........................................................................................11-3
11.2.1 In-service maintenance..................................................................................................11-3
11.2.2 Out-of-service maintenance ........................................................................................11-3
11.2.3 Unscheduled maintenance (system interruption) ..............................................11-3
11.3 Retrieve files..........................................................................................................11-3
11.3.1 CyberSentry security event files..................................................................................11-4
11.4 Convert device settings.......................................................................................11-5
11.5 Copy settings to other device ............................................................................11-7
11.6 Compare settings .................................................................................................11-7
11.6.1 Compare against defaults .............................................................................................11-7
11.6.2 Compare two devices ...................................................................................................... 11-8
11.7 Back up and restore settings .............................................................................11-8
11.7.1 Back up settings .................................................................................................................11-8
11.7.2 Restore settings............................................................................................................... 11-11
11.8 Upgrade software.............................................................................................. 11-13
11.9 Upgrade firmware ............................................................................................. 11-13
11.10 Replace front panel........................................................................................... 11-15
11.11 Replace module ................................................................................................. 11-23
11.12 Battery................................................................................................................. 11-24
11.12.1 Replace battery for SH/SL power supply............................................................. 11-24
11.12.2 Dispose of battery .......................................................................................................... 11-26
11.13 Clear files and data after uninstall ................................................................ 11-29
11.14 Repairs................................................................................................................. 11-29
11.15 Storage ................................................................................................................ 11-30
11.16 Disposal............................................................................................................... 11-30
AFLEXANALOG
OPERANDS
A.1 FlexAnalog items ................................................................................................... A-1
B RADIUS SERVER
CONFIGURATION
B.1 RADIUS server configuration ................................................................................B-1
C COMMAND LINE
INTERFACE
C.1 Command line interface ....................................................................................... C-1
D MISCELLANEOUS D.1 Warranty ................................................................................................................. D-1
D.2 Revision history ..................................................................................................... D-1
ABBREVIATIONS
INDEX

GE L90 Specifications

General

Communication	Ethernet, Serial
Mounting	Panel Mount
Frequency	50/60 Hz
Inputs	Digital, Analog
Outputs	Relay
Control	Local, Remote
Communication Interface	IEC 61850, DNP3, Modbus
Protection Functions	Differential, Ground Fault
Standards Compliance	IEC, IEEE