Date Code 20001006 Table of Contents i
SEL-351 Instruction Manual
SEL-351 INSTRUCTION MANUAL
TABLE OF CONTENTS
SECTION 1: INTRODUCTION AND SPECIFICATIONS
SECTION 2: INSTALLATION
SECTION 3: OVERCURRENT, VOLTAGE, SYNCHRONISM CHECK,
FREQUENCY, AND POWER ELEMENTS
SECTION 4: LOSS-OF-POTENTIAL, 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, METERING, AND LOAD PROFILE
FUNCTIONS
SECTION 9: SETTING THE RELAY
SECTION 10: SERIAL PORT COMMUNICATIONS AND COMMANDS
SECTION 11: FRONT-PANEL INTERFACE
SECTION 12: STANDARD EVENT REPORTS, SAG/SWELL/INTERRUPTION
REPORT, AND SER
SECTION 13: TESTING AND TROUBLESHOOTING
SECTION 14: 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 SELOGIC
®
Control Equations
Appendix H: Distributed Network Protocol (DNP) V3.00
Appendix I: MIRRORED BITS™
SECTION 15: SEL-351 RELAY COMMAND SUMMARY
Courtesy of NationalSwitchgear.com
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