Date Code 20011112 Table of Contents i
SEL-311L Instruction Manual
SEL-311L INSTRUCTION MANUAL
TABLE OF CONTENTS
SECTION 1: INTRODUCTION AND SPECIFICATIONS
SECTION 2: INSTALLATION
SECTION 3: LINE CURRENT DIFFERENTIAL, DISTANCE, OUT-OF-STEP,
OVERCURRENT, VOLTAGE, AND SYNCHRONISM CHECK
ELEMENTS
SECTION 4: LOSS-OF-POTENTIAL, CCVT TRANSIENT DETECTION,
LOAD-ENCROACHMENT, AND DIRECTIONAL ELEMENT
LOGIC
SECTION 5: TRIP AND TARGET LOGIC
SECTION 6: CLOSE AND RECLOSE LOGIC
SECTION 7: INPUTS, OUTPUTS, TIMERS, AND OTHER CONTROL LOGIC
SECTION 8: BREAKER MONITOR AND METERING FUNCTIONS
SECTION 9: SETTING THE RELAY
SECTION 10: CURRENT DIFFERENTIAL COMMUNICATIONS AND SERIAL
PORT COMMUNICATIONS AND COMMANDS
SECTION 11: FRONT-PANEL INTERFACE
SECTION 12: STANDARD EVENT REPORTS AND SER
SECTION 13: TESTING, TROUBLESHOOTING, AND COMMISSIONING
SECTION 14: APPLICATION SETTINGS FOR SEL-311L RELAYS
SECTION 15: APPENDICES
Appendix A: Firmware Versions
Appendix B: Firmware Upgrade Instructions
Appendix C: SEL Distributed Port Switch Protocol
Appendix D: Configuration, Fast Meter, and Fast Operate
Commands
Appendix E: Compressed ASCII Commands
Appendix F: Setting Negative-Sequence Overcurrent Elements
Appendix G: Setting SEL
OGIC
®
Control Equations
Appendix H: Distributed Network Protocol (DNP) 3.00 Level 2
Appendix I: MIRRORED BITS™ Communications
Appendix J: Example Calculations for 87L Settings
Appendix K: SEL-5030
ACSELERATOR™
SEL-311L RELAY COMMAND SUMMARY
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