GE LPS-O User manual

LPS-O
Line Protection™ System
Instruction Manual
LPS-O Revision: V0001.03AA20
Manual P/N: GEK-106266A
Copyright © 2001 GE Power Management
GE Power Management
215 Anderson Avenue, Markham, Ontario
Canada L6E 1B3
Tel: [phone] Fax: [phone]
Internet: http://www.GEindustrial.com/pm/
Note: All relays must be powered up at least once per year to
avoid deterioration of electrolytic capacitors and
subsequent relay failure.
Manufactured under an
ISO9002 Registered system.
g
GE Power Management

These instructions do not purport to cover all details or variations in equipment
nor provide for every possible contin
g
ency to be met in connection with instal-
lation, operation, or maintenance. Should further information be desired or
should particular problems arise which are not covered sufficiently for the pur-
chaser’s purpose, the matter should be referred to the General Electric
Company.
To the extent required the products described herein meet applicable ANSI,
IEEE, and NEMA standards; but no such assurance is
g
iven with respect to
local codes and ordinances because they vary
g
reatly.

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TABLE OF CONTENTS
1. PRODUCT DESCRIPTION 1.1 GETTING STARTED
1.1.1 DESCRIPTION .......................................................................................... 1-1
1.1.2 PASSWORDS: FACTORY SET ................................................................ 1-1
1.1.3 REMOTE COMMUNICATIONS VIA LOCAL PC .......................................1-2
1.1.4 PASSWORDS WITH LPSO-LINK.............................................................. 1-2
1.1.5 ORDERING................................................................................................ 1-3
1.2 INTRODUCTION
1.2.1 DESCRIPTION .......................................................................................... 1-4
1.2.2 APPLICATION........................................................................................... 1-4
1.2.3 PROTECTION FUNCTIONS ..................................................................... 1-4
1.3 CUSTOM PROGRAMMABILITY
1.3.1 INTRODUCTION ....................................................................................... 1-6
1.3.2 CONFIGURABLE INPUTS ........................................................................ 1-6
1.3.3 CONFIGURABLE OUTPUTS .................................................................... 1-6
1.3.4 PROGRAMMABLE LOGIC........................................................................ 1-7
1.4 AUXILIARY PROTECTION FUNCTIONS
1.4.1 POTENTIAL TRANSFORMER FUSE FAILURE (PTFF)...........................1-8
1.4.2 LINE PICKUP............................................................................................. 1-8
1.4.3 REMOTE-OPEN DETECTOR ................................................................... 1-9
1.4.4 OUT-OF-STEP BLOCKING..................................................................... 1-10
1.5 OTHER FEATURES
1.5.1 FLASH MEMORY.................................................................................... 1-12
1.5.2 LINE OVERLOAD.................................................................................... 1-12
1.5.3 CURRENT UNBALANCE DETECTION................................................... 1-12
1.5.4 FAULT REPORT...................................................................................... 1-12
1.5.5 OSCILLOGRAPHY.................................................................................. 1-12
1.5.6 PLAYBACK.............................................................................................. 1-13
1.5.7 SEQUENCE OF EVENTS.......................................................................1-13
1.5.8 EQUIPMENT DUTY................................................................................. 1-13
1.5.9 SELECTABLE GROUPS OF SETTINGS................................................ 1-13
1.5.10 TIME SYNCHRONIZATION..................................................................... 1-14
1.5.11 TRIP BUS CHECK................................................................................... 1-15
1.5.12 TRIP CIRCUIT MONITOR....................................................................... 1-15
1.5.13 ALARMS.................................................................................................. 1-15
1.5.14 METERING.............................................................................................. 1-16
1.5.15 BREAKER CONTROL............................................................................. 1-16
1.6 COMMUNICATIONS
1.6.1 KEYPAD AND DISPLAY..........................................................................1-17
1.6.2 SERIAL COMMUNICATIONS.................................................................. 1-17
1.7 SELF-TEST FEATURES
1.7.1 START-UP SELF-TESTS........................................................................ 1-18
1.7.2 RUN-TIME SELF-TESTS......................................................................... 1-18
1.7.3 CONTINUOUS MONITOR....................................................................... 1-19
1.8 PROTECTION SCHEME DESCRIPTIONS
1.8.1 INTRODUCTION ..................................................................................... 1-20
1.8.2 STEP DISTANCE .................................................................................... 1-20
1.9 OUT-OF-STEP TRIPPING
1.9.1 DESCRIPTION ........................................................................................ 1-22
1.9.2 OST CHARACTERISTIC SHAPE............................................................ 1-22
1.9.3 OUT-OF-STEP DETECTION................................................................... 1-24
1.9.4 TWO-CHARACTERISTIC OPERATION.................................................. 1-24
1.9.5 OUT-OF-STEP OSCILLOGRAPHY CAPTURE.......................................1-24

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1.10 ELEMENTARY DIAGRAM
1.10.1 ELEMENTARY DIAGRAM....................................................................... 1-25
2. CALCULATION OF
SETTINGS 2.1 INTRODUCTION
2.1.1 DESCRIPTION .......................................................................................... 2-1
a GENERAL SETTINGS............................................................................... 2-1
b PROTECTION SETTINGS ........................................................................ 2-1
2.2 GENERAL SETTINGS
2.2.1 CONFIGURATION.....................................................................................2-3
2.2.2 COMMUNICATIONS .................................................................................2-5
2.2.3 OSCILLOGRAPHY .................................................................................... 2-6
2.2.4 EQUIPMENT DUTY...................................................................................2-7
2.2.5 PROGRAMMABLE INPUTS...................................................................... 2-8
2.3 PROTECTION SETTINGS
2.3.1 Z1DISTANCE............................................................................................. 2-9
2.3.2 ZONE 2, ZONE 3, AND ZONE 4 DISTANCE FUNCTIONS ......................2-9
2.3.3 Z2DISTANCE........................................................................................... 2-10
2.3.4 Z3DISTANCE........................................................................................... 2-11
2.3.5 Z4DISTANCE........................................................................................... 2-12
2.3.6 CURSUPVISN ......................................................................................... 2-14
2.3.7 OVERCURRNT........................................................................................ 2-15
2.3.8 VOLTAGE................................................................................................ 2-18
2.3.9 LINEPICKUP............................................................................................ 2-19
2.3.10 REMOTEOPEN ....................................................................................... 2-21
2.3.11 LINEOVRLD............................................................................................. 2-22
2.3.12 SCHEME TIMERS...................................................................................2-23
2.3.13 LINE INFO ............................................................................................... 2-23
2.3.14 OS BLOCKING ........................................................................................ 2-24
2.3.15 OS TRIPPING.......................................................................................... 2-25
2.3.16 NONCRIT_AL .......................................................................................... 2-27
2.3.17 OUTPUTS................................................................................................ 2-28
2.4 INVERSE CURVES
2.4.1 INVERSE CURVE.................................................................................... 2-29
2.4.2 VERY INVERSE CURVE.........................................................................2-30
2.4.3 EXTREMELY INVERSE CURVE.............................................................2-31
2.5 REFERENCE TABLES
2.5.1 INDEX NUMBERS...................................................................................2-32
2.5.2 PROTECTION SETTINGS GUIDE..........................................................2-37
2.5.3 GENERAL SETTINGS GUIDE ................................................................ 2-44
2.5.4 PROTECTION SETTINGS DATA SHEET...............................................2-47
2.5.5 GENERAL SETTINGS DATA SHEET..................................................... 2-54
3. HARDWARE
DESCRIPTION 3.1 CASE ASSEMBLY
3.1.1 CONSTRUCTION...................................................................................... 3-1
3.1.2 ELECTRICAL CONNECTIONS AND WIRING .......................................... 3-5
3.1.3 IDENTIFICATION ...................................................................................... 3-5
3.1.4 SYSTEM BLOCK DIAGRAM ..................................................................... 3-5
3.2 INSTALLATION
3.2.1 RECEIVING, HANDLING, & STORAGE.................................................... 3-7
3.2.2 ENVIRONMENT ........................................................................................ 3-7
3.2.3 MOUNTING ............................................................................................... 3-7

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3.2.4 EXTERNAL CONNECTIONS .................................................................... 3-7
3.2.5 SURGE GROUND CONNECTIONS.......................................................... 3-7
3.3 PRINTED CIRCUIT BOARD MODULES
3.3.1 WARNING.................................................................................................. 3-8
3.3.2 BASIC CONSTRUCTION.......................................................................... 3-8
3.3.3 MODULE IDENTIFICATION...................................................................... 3-8
3.3.4 LOCAL USER INTERFACE (LUI).............................................................. 3-8
3.3.5 INPUT BOARD .......................................................................................... 3-8
3.3.6 MAGNETICS MODULE........................................................................... 3-10
3.3.7 COMMUNICATIONS INTERFACE.......................................................... 3-11
3.3.8 DIGITAL OUTPUT / POWER SUPPLY BOARD...................................... 3-12
3.3.9 DSP / ANI / COMM / LUI.......................................................................... 3-13
3.3.10 960 CPU BOARD..................................................................................... 3-14
4. ACCEPTANCE/PERIODIC
TESTS 4.1 OVERVIEW
4.1.1 INTRODUCTION ....................................................................................... 4-1
4.1.2 TEST EQUIPMENT ................................................................................... 4-1
4.1.3 DRAWINGS AND REFERENCES............................................................. 4-1
4.1.4 EQUIPMENT GROUNDING ...................................................................... 4-2
4.1.5 REQUIRED SETTINGS............................................................................. 4-2
4.1.6 GENERAL INSTRUCTIONS...................................................................... 4-2
4.1.7 SETTING CHANGES................................................................................. 4-3
4.1.8 ENTERING TEST MODE .......................................................................... 4-4
4.1.9 USING COMMUNICATIONS (OPTIONAL) ............................................... 4-5
a HARDWARE SETUP................................................................................. 4-6
b PC SOFTWARE SETUP............................................................................ 4-6
c LOAD & START LPSO-LINK.....................................................................4-6
d SET LOCAL PC CONFIGURATION.......................................................... 4-6
e CREATE TEST UNIT DESCRIPTION....................................................... 4-6
f RELAY SETUP.......................................................................................... 4-7
g
LOGGING INTO THE RELAY....................................................................4-7
h SETTING CHANGES................................................................................. 4-7
i ENTERING TEST MODE .......................................................................... 4-8
j EXITING TEST MODE............................................................................... 4-8
k INITIAL TEST SETUP................................................................................ 4-8
4.2 GENERAL RELAY TESTS
4.2.1 T1 – RELAY STATUS AND DISPLAY TESTING ...................................... 4-9
a STATUS CHECK....................................................................................... 4-9
b DISPLAY AND KEYPAD TESTS............................................................... 4-9
4.2.2 T2 – DIGITAL OUTPUT TEST................................................................. 4-10
4.2.3 T3 – CONFIGURABLE INPUT TEST ...................................................... 4-13
4.2.4 T4 – AC SYSTEM INPUT TEST.............................................................. 4-14
5. FUNCTIONAL TESTS
(FACTORY SETTINGS) 5.1 MEASURING UNIT TESTS
5.1.1 DESCRIPTION .......................................................................................... 5-1
a MEASURING UNIT TESTS....................................................................... 5-1
b ZONE PHASE REACH & TIMERS TESTS................................................ 5-1
c OUT OF STEP TESTS .............................................................................. 5-1
5.1.2 T1 – FAULT DETECTOR TEST ................................................................ 5-2
5.1.3 T2 – IT TRIP SUPERVISION TEST........................................................... 5-2
5.1.4 T3 – IB BLOCKING SUPERVISION TEST................................................ 5-3
5.1.5 T4 – GROUND DIRECTIONAL TRIP TEST.............................................. 5-3
5.1.6 T5 – GROUND DIRECTIONAL BLOCK TEST..........................................5-4
5.1.7 T6 – PHASE INSTANTANEOUS OVERCURRENT TEST........................5-4

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5.1.8 T7 – GROUND INSTANTANEOUS OVERCURRENT TEST....................5-5
5.1.9 T8 – GROUND TIME OVERCURRENT TEST ..........................................5-6
5.1.10 T9 – UNDERVOLTAGE TEST................................................................... 5-8
5.1.11 T10 – OVERVOLTAGE TEST ................................................................... 5-8
5.2 ZONE REACH AND TIMER TESTS
5.2.1 GENERAL ZONE REACH TESTING CONSIDERATIONS....................... 5-9
5.3 PHASE-TO-PHASE ZONE REACH TESTING
5.3.1 T11 – ZONE 1 PHASE REACH TEST.....................................................5-10
5.3.2 T12 – ZONE 2 PHASE REACH TEST.....................................................5-11
5.3.3 T13 – ZONE 3 PHASE REACH TEST.....................................................5-12
5.3.4 T14 – ZONE 4 PHASE REACH............................................................... 5-13
5.3.5 T15 – 3 PHASE FAULT WITH TRANSFORMER COMPENSATION...... 5-14
5.3.6 T16 – PHASE (ZONE BACKUP) TIMER TEST.......................................5-16
a ZONE1 TIMER......................................................................................... 5-17
b ZONE2 TIMER......................................................................................... 5-17
c ZONE3 TIMER......................................................................................... 5-17
d ZONE4 TIMER......................................................................................... 5-18
5.4 MOB TESTING
5.4.1 T17 – OUT-OF-STEP BLOCK ................................................................. 5-20
5.4.2 T18 – OUT-OF-STEP TRIP TEST...........................................................5-21
5.5 END OF TEST WITH FACTORY SETTINGS
5.5.1 ENDING TESTS ...................................................................................... 5-22
6. FUNCTIONAL TESTS
(USER SETTINGS) 6.1 LPS-O FUNCTIONAL TESTS
6.1.1 DESCRIPTION .......................................................................................... 6-1
a MEASURING UNIT TESTS ....................................................................... 6-1
b ZONE PHASE REACH TESTS.................................................................. 6-1
6.1.2 DRAWINGS AND REFERENCES............................................................. 6-2
a DRAWINGS ............................................................................................... 6-2
b REFERENCE............................................................................................. 6-2
6.1.3 GENERAL INSTRUCTIONS...................................................................... 6-2
6.2 MEASURING UNIT TESTS
6.2.1 T1 – FAULT DETECTOR TEST ................................................................6-3
6.2.2 T2 – IT TRIP SUPERVISION TEST........................................................... 6-3
6.2.3 T3 – IB BLOCKING SUPERVISION TEST................................................ 6-3
6.2.4 T4 – GROUND DIRECTIONAL TRIP TEST .............................................. 6-4
6.2.5 T5 – GROUND DIRECTIONAL BLOCK TEST .......................................... 6-4
6.2.6 T6 – PHASE INSTANTANEOUS OVERCURRENT TEST........................ 6-4
6.2.7 T7 – GROUND INSTANTANEOUS OVERCURRENT TEST....................6-5
6.2.8 T8 – GROUND TIME OVERCURRENT TEST ..........................................6-6
6.2.9 T9 – UNDERVOLTAGE TEST................................................................... 6-6
6.2.10 T10 – OVERVOLTAGE TEST ................................................................... 6-7
6.3 ZONE REACH TESTS
6.3.1 WARNING.................................................................................................. 6-8
6.3.2 GENERAL CONSIDERATIONS ................................................................6-8
6.3.3 ZONE 1 TO 4 PHASE-TO-PHASE REACH CALCULATIONS..................6-8
6.3.4 T11 – ZONE 1 PHASE REACH TEST.....................................................6-10
6.3.5 T12 – ZONE 2 PHASE REACH TEST.....................................................6-11
6.3.6 T13 – ZONE 3 PHASE REACH TEST.....................................................6-12
6.4 BACKUP PROTECTION TESTS
6.4.1 T14 – ZONE 4 PHASE REACH TEST.....................................................6-14
6.4.2 T15 – 3 PHASE FAULT WITH TRANSFORMER COMPENSATION...... 6-15

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7. SPECIFICATIONS 7.1 LPS-O SPECIFICATIONS
7.1.1 DESCRIPTION .......................................................................................... 7-1
8. LOCAL USER
INTERFACE 8.1 INTRODUCTION
8.1.1 DESCRIPTION .......................................................................................... 8-1
8.1.2 DISPLAY & KEYPAD................................................................................. 8-1
a DISPLAY.................................................................................................... 8-1
b KEYPAD .................................................................................................... 8-1
8.1.3 CONTROL KEYS....................................................................................... 8-2
a METERING/CLEAR KEY [CLR]................................................................. 8-2
b ARROW KEYS........................................................................................... 8-3
c ENTER KEY [ENT] ....................................................................................8-3
d DATA ENTRY KEYS.................................................................................. 8-3
8.1.4 MESSAGES............................................................................................... 8-3
8.1.5 SETTINGS................................................................................................. 8-4
8.1.6 EDIT PROTECTION SETTINGS............................................................... 8-5
8.1.7 END KEY................................................................................................... 8-7
8.1.8 EDIT GENERAL SETTINGS...................................................................... 8-8
8.1.9 SELECT ACTIVE SETTING GROUP ........................................................ 8-8
8.1.10 MODIFY DATE/TIME................................................................................. 8-9
8.1.11 ACTIONS................................................................................................... 8-9
8.1.12 DISABLE OUTPUTS................................................................................ 8-10
8.1.13 ENABLE OUTPUTS................................................................................. 8-11
8.1.14 TRIP BREAKER....................................................................................... 8-11
8.1.15 CLOSE BREAKER................................................................................... 8-12
8.1.16 RELAY TEST........................................................................................... 8-12
8.1.17 KEYPAD/DISPLAY INTERFACE TEST................................................... 8-13
8.1.18 DIGITAL OUTPUT TEST......................................................................... 8-14
8.1.19 PLAYBACK.............................................................................................. 8-15
8.1.20 CHANGE PASSWORD............................................................................ 8-17
8.1.21 ENABLE/DISABLE PASSWORDS.......................................................... 8-17
8.1.22 RESET DATA .......................................................................................... 8-17
8.1.23 ADJUST CONTRAST.............................................................................. 8-17
8.2 INFORMATION
8.2.1 DESCRIPTION ........................................................................................ 8-18
8.2.2 REQUEST STATUS INFORMATION...................................................... 8-18
8.2.3 REQUEST FAULT INFORMATION......................................................... 8-19
8.2.4 REQUEST PRESENT VALUES .............................................................. 8-20
8.2.5 CONTACT CONVERTER STATUS.........................................................8-20
8.2.6 DIGITAL OUTPUT STATUS.................................................................... 8-21
8.2.7 EVENT INFORMATION........................................................................... 8-21
8.2.8 COMMUNICATION PASSWORDS ......................................................... 8-23
8.2.9 REQUEST STATION/LINE ID ................................................................. 8-24
8.2.10 REQUEST LPS-O MODEL/VERSION..................................................... 8-24
8.2.11 OSCILLOGRAPHY SNAPSHOT ............................................................. 8-25
8.3 ASCII INTERFACE
8.3.1 DESCRIPTION ........................................................................................ 8-26
8.3.2 RECOMMENDED REMOTE COMMUNICATIONS PACKAGEs............. 8-26
8.4 REMOTE COMMUNICATION INTERFACE
8.4.1 HARDWARE SWITCHES........................................................................ 8-27
8.4.2 MODEM CONNECTIONS AND SETTINGS............................................ 8-27
8.4.3 PC MODEM............................................................................................. 8-28
8.4.4 LPS-O MODEM ....................................................................................... 8-29
8.4.5 NULL-MODEM CONNECTIONS ............................................................. 8-30

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9. SERVICING 9.1 SPARES
9.1.1 DESCRIPTION .......................................................................................... 9-1
9.2 SERVICING WITH THE RELAY SELF-TEST
9.2.1 DESCRIPTION .......................................................................................... 9-2
9.3 TROUBLESHOOTING
9.3.1 DESCRIPTION .......................................................................................... 9-4
9.3.2 THE INFORMATION STATUS COMMAND ..............................................9-4
9.3.3 SERVICING A CRITICAL FAILURE .......................................................... 9-5
9.3.4 LOCATING THE DEFECTIVE BOARD ..................................................... 9-5
9.3.5 SERVICING A NON-CRITICAL FAILURE................................................. 9-6
9.3.6 LOCATING THE DEFECTIVE BOARD ..................................................... 9-6
9.3.7 SERVICE SYSTEM STATUS FAILURES..................................................9-6
a FAILURE MESSAGES: 960 CPU BOARD ................................................ 9-6
b FAILURE MESSAGES: MAGNETICS MODULE.......................................9-7
c FAILURE MESSAGES: COMMUNICATIONS WARNINGS ......................9-7
d FAILURE MESSAGES: MISCELLANEOUS FAILURES ...........................9-7
e FAILURE MESSAGES: MISCELLANEOUS MESSAGES......................... 9-7
f FAILURE MESSAGES: ANI / DSP BOARD ..............................................9-7
10. ALPS-TEST PROGRAM 10.1 INTRODUCTION
10.1.1 DESCRIPTION ........................................................................................ 10-1
10.1.2 STARTING THE PROGRAM FOR THE FIRST TIME ............................. 10-1
10.1.3 STARTING PROGRAM AFTER THE FIRST TIME ................................. 10-2
10.2 TEST CALCULATIONS
10.2.1 DESCRIPTION ........................................................................................ 10-3
10.2.2 ENTERING INPUT QUANTITIES............................................................10-3
10.2.3 ENTERING A VALUE .............................................................................. 10-4
10.2.4 SELECTING A VALUE ............................................................................ 10-5
10.2.5 M1 PHASE UNITS – ZONE 1..................................................................10-5
10.2.6 MT PHASE UNITS – ZONE 2..................................................................10-6
10.2.7 M3 PHASE UNITS – ZONE 3..................................................................10-6
10.2.8 M4 PHASE UNITS – ZONE 4..................................................................10-6
10.2.9 MOB PHASE UNIT .................................................................................. 10-7
10.3 FILE MENU
10.3.1 NEW TEST FILE...................................................................................... 10-8
10.3.2 OPEN TEST FILE....................................................................................10-8
10.3.3 OPEN SETTING FILE.............................................................................. 10-8
10.3.4 CLOSE TEST FILE.................................................................................. 10-9
10.3.5 SAVE INPUT QUANTITIES................................................................... 10-10
10.3.6 SAVE INPUT QUANTITIES AS ............................................................. 10-10
10.3.7 SAVE OUTPUT AS................................................................................ 10-10
10.3.8 PRINT .................................................................................................... 10-11
10.3.9 PRINT SETUP ....................................................................................... 10-11
10.3.10 LAST 4 OPENED SETTINGS FILES..................................................... 10-11
10.3.11 EXIT....................................................................................................... 10-11
10.4 EDIT MENU
10.4.1 COPY..................................................................................................... 10-12
10.4.2 COPY TEXT ONLY................................................................................10-12
10.4.3 COPY MHO CIRCLE ONLY ..................................................................10-12
10.5 VIEW MENU
10.5.1 DESCRIPTION ...................................................................................... 10-13
10.5.2 TOOLBAR.............................................................................................. 10-13

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10.5.3 STATUS BAR ........................................................................................ 10-13
10.6 TOOLS MENU
10.6.1 DESCRIPTION ...................................................................................... 10-14
10.7 WINDOW MENU
10.7.1 DESCRIPTION ...................................................................................... 10-16
10.7.2 CASCADE.............................................................................................. 10-16
10.7.3 TILE ....................................................................................................... 10-16
10.7.4 ARRANGE ICONS................................................................................. 10-16
10.7.5 VIEWING MULTIPLE TESTS................................................................ 10-16
10.8 HELP MENU
10.8.1 CONTENTS........................................................................................... 10-17
10.8.2 ABOUT ALPS_TST................................................................................ 10-17
11. LPSO-LINK USER GUIDE 11.1 OVERVIEW
11.1.1 DESCRIPTION ........................................................................................ 11-1
11.1.2 WHAT’S INCLUDED IN YOUR LPSO-LINK USER GUIDE..................... 11-1
11.1.3 USING ON-LINE HELP............................................................................ 11-1
11.2 LPSO-LINK INSTALLATION
11.2.1 DESCRIPTION ........................................................................................ 11-2
11.2.2 SUPPORTED ARCHITECTURE ............................................................. 11-2
11.2.3 HARDWARE INSTALLATION ................................................................. 11-4
11.2.4 SOFTWARE INSTALLATION.................................................................. 11-4
a INSTALLING FROM PRODUCTS CD..................................................... 11-4
b INSTALLING FROM THE INTERNET..................................................... 11-8
11.3 USING LPSO-LINK
11.3.1 STARTUP................................................................................................ 11-9
11.3.2 MENU BAR.............................................................................................. 11-9
11.3.3 TOOL BAR............................................................................................. 11-10
11.3.4 STATUS BAR ........................................................................................ 11-10
11.4 SETTING UP YOUR HOST MACHINE
11.4.1 DESCRIPTION ...................................................................................... 11-11
11.4.2 COM PORT SETUP............................................................................... 11-11
11.4.3 MODEM SETUP.................................................................................... 11-11
11.4.4 PRINTER SETUP.................................................................................. 11-12
11.4.5 DEVICE SETUP..................................................................................... 11-13
11.4.6 HOW TO ADD A DEVICE...................................................................... 11-13
11.5 CONNECTING TO AND LOGGING OUT OF A DEVICE
11.5.1 DESCRIPTION ...................................................................................... 11-16
11.5.2 CONNECT TO A DEVICE ..................................................................... 11-16
11.5.3 LOGOUT FROM A DEVICE .................................................................. 11-16
a WHY THIS EXPLICIT HANG-UP?......................................................... 11-17
11.6 SETTINGS
11.6.1 DESCRIPTION ...................................................................................... 11-18
11.6.2 UPLOAD SETTINGS ............................................................................. 11-18
11.6.3 LOAD LOCAL SETTINGS ..................................................................... 11-19
11.6.4 GET LOGIC ........................................................................................... 11-20
11.6.5 SET DATE AND TIME........................................................................... 11-20
11.6.6 CHANGE BUS/STATION ID.................................................................. 11-20
11.6.7 TOC CURVES ....................................................................................... 11-20
11.6.8 CALIBRATION....................................................................................... 11-20
11.7 ACTIONS
11.7.1 DESCRIPTION ...................................................................................... 11-21

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11.7.2 ENABLE OUTPUTS...............................................................................11-21
11.7.3 DISABLE OUTPUTS.............................................................................. 11-21
11.7.4 CHANGE PASSWORD.......................................................................... 11-21
11.7.5 RESET DATA ........................................................................................ 11-21
11.7.6 DIGITAL OUTPUT TEST....................................................................... 11-22
11.7.7 RELAY TEST......................................................................................... 11-22
11.7.8 OPEN BREAKER................................................................................... 11-22
11.7.9 CLOSE BREAKER.................................................................................11-22
11.8 INFORMATION
11.8.1 DESCRIPTION ...................................................................................... 11-23
11.8.2 OPEN REPORT..................................................................................... 11-23
11.8.3 NEW REPORT....................................................................................... 11-23
11.8.4 FAULT REPORT.................................................................................... 11-24
11.8.5 OSCILLOGRAPHY REPORT ................................................................ 11-24
11.8.6 BREAKER HEALTH REPORT............................................................... 11-24
11.8.7 DEMAND REPORT ...............................................................................11-25
11.8.8 DIAGNOSTICS REPORT ...................................................................... 11-25
11.8.9 EVENT REPORT................................................................................... 11-25
11.8.10 PRESENT VALUES REPORT............................................................... 11-25
11.8.11 STATUS REPORT.................................................................................11-25
11.8.12 CONTACT STATUS REPORT .............................................................. 11-25
11.8.13 LUI PASSWORD REPORT ...................................................................11-25
11.8.14 OPEN REPORT..................................................................................... 11-25
11.8.15 SAVE REPORT ..................................................................................... 11-26
11.8.16 PRINT REPORT .................................................................................... 11-26
11.9 LOGGING
11.9.1 SESSION LOG ...................................................................................... 11-27
11.9.2 TURN OFF............................................................................................. 11-27
11.9.3 CURRENT SESSION LOG.................................................................... 11-27
11.9.4 OPEN SESSION LOG ........................................................................... 11-27
11.9.5 ARCHIVAL............................................................................................. 11-27
11.9.6 ARCHIVE............................................................................................... 11-28
11.9.7 RETREIVE............................................................................................. 11-28
12. ASCII
COMMUNICATIONS 12.1 INTRODUCTION
12.1.1 DESCRIPTION ........................................................................................ 12-1
12.1.2 ASCII INTERFACE .................................................................................. 12-1
13. XPRESSION BUILDER 13.1 INTRODUCTION
13.1.1 OVERVIEW.............................................................................................. 13-1
13.1.2 INSTALLATION ....................................................................................... 13-1
a INSTALLING FROM PRODUCTS CD..................................................... 13-1
b INSTALLING FROM THE INTERNET ..................................................... 13-4
13.2 DESIGN CONSIDERATIONS
13.2.1 OVERVIEW.............................................................................................. 13-5
13.2.2 BOOLEAN OPERATORS, LATCHES, TIMERS, & COUNTERS ............13-5
a BOOLEAN OPERATORS........................................................................ 13-5
b LATCHES ................................................................................................ 13-5
c TIMERS ................................................................................................... 13-6
d COUNTERS............................................................................................. 13-7
13.3 XPRESSION BUILDER FLAGS
13.3.1 CONTACT CONVERTER INPUTS..........................................................13-8

GE Power Management LPS-O Line Protection System
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TABLE OF CONTENTS
13.3.2 INPUT FLAGS ......................................................................................... 13-9
13.3.3 OUTPUT FLAGS ................................................................................... 13-12
13.4 CREATING XPRESSION BUILDER LOGIC
13.4.1 DESCRIPTION ...................................................................................... 13-13
13.4.2 UPLOADING RELAY CONFIGURABLE LOGIC ................................... 13-13
13.4.3 DESIGNING XPRESSION BUILDER LOGIC........................................ 13-13
13.4.4 COMPILING AND DOWNLOADING XPRESSION BUILDER LOGIC... 13-16
13.4.5 BREAKER FAILURE EXAMPLE............................................................ 13-16
A. FREQUENTLY ASKED
QUESTIONS A.1 FREQUENTLY ASKED QUESTIONS
B. TABLES AND FIGURES B.1 TABLES
B.1.1 LIST OF TABLES...................................................................B-1
B.2 FIGURES
B.2.1 LIST OF FIGURES.................................................................B-2
C. KEYPAD MENUS C.1 KEYPAD MENUS
C.1.1 SET MENU.............................................................................C-1
C.1.2 ACT KEYPAD MENU.............................................................C-2
C.1.3 INF KEYPAD MENU...............................................................C-3
D. WARRANTY D.1 WARRANTY INFORMATION
D.1.1 GE MULTILIN WARRANTY ...................................................D-1

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LPS-O Line Protection System GE Power Management
TABLE OF CONTENTS

GE Power Management LPS-O Line Protection System 1-
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1 PRODUCT DESCRIPTION 1.1 GETTING STARTED
1
1 PRODUCT DESCRIPTION 1.1 GETTING STARTED 1.1.1 DESCRIPTION
Before attempting to install or use this relay, it is imperative that all WARNINGS and CAU-
TIONS in this manual are reviewed to help prevent personal injury, equipment damage, and/
or downtime.
Unpack the relay, the mounting brackets, and the hardware for attaching the mounting brackets to the sides of
the relay. Examine the relay for any damage sustained in transit, and if damage is evident, notify the shipping
company and the nearest GE sales office immediately.
Prior to applying power, ensure that the model number of the relay listed on the front panel corresponds to the
model ordered. Make sure that the DC supply power matches the rated voltage listed on the front panel. Refer
to the elementary diagram in Figure 1–11: ELEMENTARY DIAGRAM on page 1–25 for the locations of the DC
power inputs
Instructions on how to use the keypad to change settings and put the relay into test mode can be found in Sec-
tion 4.1.7: SETTING CHANGES on page 4–3. Complete instructions on how to operate the keypad are found
in Chapter 8: LOCAL USER INTERFACE.
GE Power Management contact information:
GE Power Management
215 Anderson Avenue
Markham, Ontario
Canada L6E 1B3
Telephone: [phone]
Fax: [phone]
E-mail: [e-mail]
Home Page: www.GEindustrial.com/pm
1.1.2 PASSWORDS: FACTORY SET
The LPS-O relay requires the use of passwords to change Settings or to perform Actions. No password is
required to obtain information from the relay, including viewing the existing settings. The relay is shipped from
the factory with the following Local User Interface (LUI) passwords:
SETTINGS: 123.
ACTIONS: 456.
MASTER: 789.
NOTE: The decimal point following the digits is part of the password. Factory passwords MUST be
changed before the user can modify settings or initiate Actions.
To change the default password, follow these steps:
1. Press the ACTIONS [ACT] key.
2. Press the ENTER [ENT] key.
3. Scroll to the CHANGE PASSWORD option.
4. Select the Password Privilege level to be changed.
5. Press [ENT].
6. Enter the factory password (for example: 789. for Master Password).

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LPS-O Line Protection System GE Power Management
1.1 GETTING STARTED 1 PRODUCT DESCRIPTION
17. Enter your password.
8. Re-enter your password.
9. Press [END], press [ENT], then press [CLR].
The keypad passwords stored in the relay may be viewed, in encoded format, via remote communications.
1.1.3 REMOTE COMMUNICATIONS VIA LOCAL PC
To communicate with the relay via a local PC, connect the relay to a serial port of an IBM compatible computer
with a null-modem cable. Connection can be made either to the 25 pin D-connector on the back of the relay
(PL2A) or the 9 pin D-connector on the front (PL1). Detailed cable diagrams are shown in the following figures:
• Figure 8–2: MODEM CABLE on page 8–26
• Figure 8–3: 25-PIN NULL MODEM CABLE on page 8–26
• Figure 8–4: 25-PIN NULL MODEM CABLE on page 8–30
• Figure 8–5: NULL MODEM CABLE FOR PORT PL1 on page 8–30
The communications software required to access the relay, LPSO-Link, is included on the accompanying GE
Power Management Products CD. Follow instructions in Section 11.2.4: SOFTWARE INSTALLATION on page
11–4 to load LPSO-Link onto the PC.
1.1.4 PASSWORDS WITH LPSO-LINK
The LPSO-Link program requires the use of passwords to obtain information from the relay, to change Set-
tings, or to perform Actions. The relay is shipped from the factory with the following communications pass-
words:
VIEW: VIEW!
SETTINGS: SETTING!
ACTIONS: CONTROL!
MASTER: MASTER!
NOTE: The exclamation point following the letters is part of the factory password. The factory pass-
words MUST be changed before the user can modify Settings or initiate Actions. The user can
log into the relay at any password level. After logging into the relay, the password may be
changed under the ACTIONS menu by selecting CHANGE PASSWORD.
Before the user can change another password it is necessary to logout from the LPS-O. The user can then
change the remaining passwords by first logging into the LPS-O using another default password. The commu-
nications passwords may be viewed, in an encoded format, via the keypad with the [INF] (Information) key.
To log into the relay, follow the instructions in Section 4.1.9: USING COMMUNICATIONS (OPTIONAL) on page
4–5. Any one of the factory passwords can be used to log in to the relay. The Unit ID (General Setting 101:
UNITID) is factory set to 0.

GE Power Management LPS-O Line Protection System 1-
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1 PRODUCT DESCRIPTION 1.1 GETTING STARTED
1
1.1.5 ORDERING
EXAMPLE: LPSOB35U23VE1N = LPS-O Digital Line Protection Distance Relay; revision B; three phase trip-
ping logic; rated at 5 amperes; without series capacitor protection; 110/125 VDC supply; contact tripping out-
puts; 3 communications ports; vertical mounting; with extended memory; with OST functions; and no recloser.
Table 1–1: ORDER CODES FOR THE LPS-O
LPS


* * *

       
Base Unit LPS |||||||||||| Base Unit
Distance
Relay O||||||||||| Phase Distance and Ground Overcurrent Relay with Out-of-Step Tripping
Software B|||||||||| Revision Level
Tripping Logic 3| | | | | | | | Three Phase Tripping Logic
Current Rating 1|||||||| 1 Ampere rated current
5|||||||| 5 Ampere rated current
Series Ca
p
s.
U||||||| For applications without series capacitors
Battery
Voltage 0|||||| 48V DC battery voltage
1|||||| 110/125 V DC battery voltage
2|||||| 220/250 V DC battery voltage
Trip Outputs 1| | | | | SCR trip outputs & contact channel interface
2| | | | | Contact trip outputs & contact channel interface
Comm Ports 3|||| Front RS232 port & 2 settable RS232/RS485 rear ports (GEmodem/ASCII)
Mounting H| | | Horizontal mounting
V| | | Vertical mounting
Oscillography E|| Extended oscillography memory
OST 1|With out-of-step tripping
Recloser NNo recloser

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LPS-O Line Protection System GE Power Management
1.2 INTRODUCTION 1 PRODUCT DESCRIPTION
11.2 INTRODUCTION 1.2.1 DESCRIPTION
The Line Protection System (LPS) is a microprocessor-based digital relay system that uses waveform sam-
pling with appropriate algorithms to provide three phase tripping schemes for transmission line protection and
system backup. The LPS-O models covered by this instruction book are intended for three-phase tripping
applications. The LPS-O relay samples the current and voltage inputs from the power system 64 times per
cycle. The protection algorithms process the sampled data in sets of four, sixteen times per cycle. The LPS-O
relay also uses advanced Fourier calculation techniques and adaptive measuring functions to achieve high-
speed tripping for severe faults.
The LPS-O is packaged in a compact 3 Rack Unit high (one RU = 1.75 Inch) 19-inch rack mount case which is
available for either horizontal or vertical mounting. The case outline and mounting dimensions for the LPS-O
are shown in Figure 3–1: FRONT AND REAR VIEWS OF THE LPS-O on page 3–1.
All models of the LPS-O relay include a full keypad and a liquid crystal display (LCD) for local access to relay
data and settings. In addition, up to three communication ports are provided for both local and remote access
via a PC. Each port may be independently set for an ASCII protocol or GEmodem protocol.
1.2.2 APPLICATION
The LPS-O is a modified version of the ALPS relay system. It is primarily intended for system backup (Phase
impedance) and out-of-step trip protection at generator terminals. The overcurrent and impedance functions of
the LPS-O can be used to complement Generator Protection relay systems like the DGP and SR489.
Also, the LPS-O may be used for line protection. It can provide three zones of phase distance and ground
overcurrent protection for either solidly grounded or resistance grounded systems where ground distance func-
tions may not provide reliable protection.
The external connections for the LPS-O are shown in the elementary diagram of Figure 1–11: ELEMENTARY
DIAGRAM on page 1–25. Note that the relay uses 3-wire voltage inputs and is suitable for either delta or wye
connected VTs. All Contact Converter inputs and Contact Outputs of the LPS-O are user configurable. The ele-
mentary diagram also shows default assignments of the Inputs/Outputs which can be changed by the user.
The measurement functions included are listed in Table 1–2: LPS-O MEASUREMENT FUNCTIONS.
1.2.3 PROTECTION FUNCTIONS
The measurement functions included are listed in Table 1–2: LPS-O MEASUREMENT FUNCTIONS below.
The Zone 1 distance functions provide secure tripping for all fault types over most of the protected line. The
Zone 1 phase distance functions are variable-mho distance functions.
Overreaching Zone 2 phase distance functions can be used for the Step Distance protection scheme. Ground-
directional overcurrent functions can be selected to replace or supplement the Zone 2 phase-distance func-
tions in the Step Distance scheme. The Zone 2 phase distance functions are provided with independent timers
for time delayed backup protection.
Zone 3 phase distance functions are provided with independent timers for time delayed backup protection.
The Zone 4 variable-mho phase distance functions can be used when a reversed function is required. The
Zone 4 phase distance functions are provided with independent timers for time delayed backup protection.

GE Power Management LPS-O Line Protection System 1-
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1 PRODUCT DESCRIPTION 1.2 INTRODUCTION
1
When phase distance functions are used for a zone of protection, three individual measuring functions are
available. The algorithm that implements the variable-mho measuring functions is derived from designs that
have evolved through several different families of static analog and digital relay systems which have accumu-
lated decades of dependable and secure in-service experience.
An instantaneous overcurrent tripping function (50G) provides direct tripping for severe phase-to-ground faults.
A time-overcurrent tripping function (51G) provides time-delayed backup tripping for phase-to-ground faults.
Either or both of these ground-overcurrent functions can be controlled by the NT negative-sequence directional
trip unit, at the customer’s discretion.
Table 1–2: LPS-O MEASUREMENT FUNCTIONS
Zone or Type Functions
Zone 1 • 3 Variable-Mho phase-distance functions with time delay
Zone 2 (Pilot Zone) • 3 Variable-Mho phase distance functions with time delay
and
Ground directional-overcurrent functions consisting of:
IPT: Ground Trip overcurrent
NT: Negative Sequence Directional Trip
IPB: Ground Block overcurrent
NB: Negative Sequence directional block
Zone 3 • 3 Variable-Mho phase-distance functions with time delay
Zone 4 • 3 Variable-Mho phase-distance functions (reverse looking) with time
delay.
Out of Step Blocking (OSB) 3 Variable-Mho phase-distance functions
Overcurrent Backup 50 — Phase-overcurrent direct trip (directional or nondirectional
50G — Ground-overcurrent direct trip (directional or nondirectional)
51G — Ground time-overcurrent direct trip (directional or nondirectional)
Overcurrent Supervision IT — Trip-supervision overcurrent
IB — Block-supervision overcurrent
Fault Detector FD
Line-Pickup Overcurrent I1
Remote-Open Detectors ROD
Line-Overload Detectors Level 1 Overcurrent
Level 2 Overcurrent
Over/Undervoltage Three adjustable over or under voltage detectors with time delay
Out of Step Tripping (OST) 3 Variable-Mho positive sequence-distance functions

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LPS-O Line Protection System GE Power Management
1.3 CUSTOM PROGRAMMABILITY 1 PRODUCT DESCRIPTION
11.3 CUSTOM PROGRAMMABILITY 1.3.1 INTRODUCTION
The LPS-O offers a high degree of custom programmability. Custom programming of the LPS-O relay is
accomplished using the Xpression Builder software. Xpression Builder is a Windows based program that
allows the user to graphically design Programmable Logic and create I/O (Input/Output) assignments for the
LPS-O and other GE Power Management relays. Xpression Builder is included on the GE Power Management
CD-ROM or may be downloaded from the GE Power Management website. A complete description of the LPS-
O custom programming features and Xpression Builder is included in Chapter 13: XPRESSION BUILDER
.
1.3.2 CONFIGURABLE INPUTS
All of the contact converters (Digital Inputs) in the LPS-O are user configurable. However, each LPS-O relay is
shipped with the Default Contact Converter Assignments shown in Table 1–3: LPS-O DEFAULT CONTACT
CONVERTER ASSIGNMENTS below and the elementary diagram Figure 1–11: ELEMENTARY DIAGRAM on
page 1–25.
1.3.3 CONFIGURABLE OUTPUTS
All of the output relays in the LPS-O, except the alarm output relays, are user-configurable. However, each
LPS-O relay is shipped with the Default Output Relay Assignments shown in Table 1–4: LPS-O DEFAULT
OUTPUT CONTACT ASSIGNMENTS below and the elementary diagram Figure 1–11: ELEMENTARY DIA-
GRAM on page 1–25.
Table 1–3: LPS-O DEFAULT CONTACT CONVERTER ASSIGNMENTS
INPUT DESCRIPTION MNEMONIC INDEX
NUMBER NOTE
CC1 SPARE
CC2 SPARE
CC3 SPARE
CC4 SPARE
CC5 BKR 1 52b 52B_1A 1
CC6 BKR 2 52b 52B_2A 4
CC7 SPARE
CC8 SPARE
CC9 SPARE
CC10 SPARE
CC11 SPARE
CC12 SPARE