Schweitzer Engineering SEL-351P, Быстрый старт

Страница: 600 / 674

Date Code 991201 Table of Contents iii
SEL-351P Manual Técnico
Overview...................................................................................................................................... H-1
Configuration............................................................................................................................... H-1
Data-Link Operation .................................................................................................................... H-2
Data Access Method .................................................................................................................... H-2
Device Profile .............................................................................................................................. H-3
Object Table ................................................................................................................................ H-5
Data Map ..................................................................................................................................... H-9
Relay Summary Event Data ............................................................................................... H-12
Point Remapping........................................................................................................................ H-13
APPENDIX I: M
IRRORED
B
ITS
™ ................................................................I-1
Overview........................................................................................................................................I-1
Operation .......................................................................................................................................I-1
Message Transmission...........................................................................................................I-1
Message Decoding and Integrity Checks...............................................................................I-1
Synchronization .....................................................................................................................I-2
Loop-Back Testing.................................................................................................................I-3
Channel Monitoring...............................................................................................................I-3
M
IRRORED
B
ITS
™ Protocol for the Pulsar 9600 Baud Modem....................................................I-3
Settings ..........................................................................................................................................I-4
TABLES
Table G.1: SEL
OGIC
Control Equation Operators (listed in processing order)....................................... G-3
Table G.2: Processing Order of Relay Elements and Logic (top to bottom)......................................... G-11
Table H.1: Data Access Methods ............................................................................................................ H-2
Table H.2: SEL-351P DNP Object Table................................................................................................ H-5
Table H.3: SEL-351P DNP Data Map..................................................................................................... H-9
FIGURES
Figure F.1: Minimum Response Time Added to a Negative-Sequence Time-Overcurrent Element
51QT ..............................................................................................................................F-2
Figure F.2: Distribution Feeder Protective Devices ..................................................................................F-4
Figure F.3: Traditional Phase Coordination ..............................................................................................F-4
Figure F.4: Phase-to-Phase Fault Coordination.........................................................................................F-5
Figure F.5: Negative-Sequence Overcurrent Element Derived from “Equivalent” Phase
Overcurrent Element, 51EP ...........................................................................................F-6
Figure G.1: Result of Rising Edge Operators on Individual Elements in Setting ER .............................. G-6
Figure G.2: Result of Falling Edge Operator on a Deasserting Underfrequency Element....................... G-7