xii
SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601
Preface
Safety Information
Appendix D: Configuration, Fast Meter, and Fast Operate Commands.
Describes use of these commands in communicating ASCII and binary
messages over a single communications channel.
Appendix E: Compressed ASCII Commands. Describes commands that
produce machine-readable relay data for export to an external device.
Appendix F: Unsolicited SER Protocol. Describes a protocol certain
devices can use in receiving unsolicited binary data from the relay.
Appendix G: Distributed Network Protocol. Describes DNP3 protocol.
Appendix H: Protection Application Examples. Describes transformer
winding and CT connection compensation settings examples.
SEL-387 Relay Command Summary. Summarizes the serial port commands
fully described in Section 7.
Safety Information
Dangers, Warnings,
and Cautions
This manual uses three kinds of hazard statements, defined as follows:
Safety Symbols
The following symbols are often marked on SEL products.
Indicates an imminently hazardous situation
that, if not avoided, will result in death or
serious injury.
Indicates a potentially hazardous situation
that, if not avoided, could result in death or
serious injury.
Indicates a potentially hazardous situation
that, if not avoided, may result in minor or
moderate injury or equipment damage.
Refer to accompanying documents.
Se reporter à la documentation.
Earth (ground) Terre
Protective earth (ground) Terre de protection
Direct current Courant continu
Alternating current Courant alternatif
Both direct and alternating current Courant continu et alternatif
Instruction manual Manuel d’instructions