Date Code 20010808 Table of Contents i
SEL-351A Instruction Manual
SEL-351A INSTRUCTION MANUAL
TABLE OF CONTENTS
SECTION 1: INTRODUCTION AND SPECIFICATIONS
SECTION 2: INSTALLATION
SECTION 3: OVERCURRENT, VOLTAGE, SYNCHRONISM CHECK, AND
FREQUENCY 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 AND METERING
SECTION 9: SETTING THE RELAY
SECTION 10: SERIAL PORT COMMUNICATIONS AND COMMANDS
SECTION 11: FRONT-PANEL INTERFACE (ONLY ON MODELS WITH LCD)
SECTION 12: STANDARD EVENT REPORTS 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) 3.00
Appendix I: Using SEL-251 and SEL-267 Relay Settings in the
SEL-351A Relay
Appendix J: SEL-5030 ACSELERATOR™
SECTION 15: SEL-351 RELAY COMMAND SUMMARY
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