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Table of Contents
Date Code 991201
SEL-351P Manual Técnico
APPENDIX F: SETTING NEGATIVE-SEQUENCE OVERCURRENT
ELEMENTS .............................................................................................F-1
Setting Negative-Sequence Definite-Time Overcurrent Elements ...............................................F-1
Setting Negative-Sequence Time-Overcurrent Elements .............................................................F-1
Coordinating Negative-Sequence Overcurrent Elements .............................................................F-2
Coordination Guidelines .......................................................................................................F-3
Coordination Example ..........................................................................................................F-3
Traditional Phase Coordination ....................................................................................F-4
Apply the Feeder Relay Negative-Sequence Overcurrent Element
(Guidelines 1 to 3).................................................................................................F-5
Convert “Equivalent” Phase Overcurrent Element Settings to Negative-
Sequence Overcurrent Element Settings (Guideline 4) ........................................F-5
Negative-Sequence Overcurrent Element Applied at a Distribution Bus
(Guideline 5) .........................................................................................................F-6
Ground Coordination Concerns ............................................................................................F-7
Other Negative-Sequence Overcurrent Element References........................................................F-7
APPENDIX G: SETTING SEL
OGIC
®
CONTROL EQUATIONS ............... G-1
Relay Word Bits .......................................................................................................................... G-1
Relay Word Bit Operation Example – Phase Time-Overcurrent Element 51P1T............... G-1
Phase Time-Overcurrent Element 51P1T Pickup Indication ....................................... G-1
Phase Time-Overcurrent Element 51P1T Time-Out Indication .................................. G-2
Phase Time-Overcurrent Element 51P1T Reset Indication ......................................... G-2
Relay Word Bit Application Examples – Phase Time-Overcurrent Element
51P1T ................................................................................................................... G-2
Other Relay Word Bits......................................................................................................... G-3
SEL
OGIC
Control Equations ........................................................................................................ G-3
SEL
OGIC
Control Equation Operators ................................................................................. G-3
SEL
OGIC
Control Equation Parentheses Operator ( ) .................................................. G-4
SEL
OGIC
Control Equation NOT Operator ! ............................................................... G-4
Example of NOT Operator ! Applied to Single Element ..................................... G-4
Example of NOT Operator ! Applied to Multiple Elements (within
parentheses) .................................................................................................. G-5
SEL
OGIC
Control Equation Rising Edge Operator / .................................................... G-5
SEL
OGIC
Control Equation Falling Edge Operator \ ................................................... G-7
SEL
OGIC
Control Equation Operation Example – Tripping................................................ G-7
Analysis of SEL
OGIC
Control Equation Trip Setting TR ............................................ G-8
Set an Output Contact for Tripping ............................................................................. G-9
All SEL
OGIC
Control Equations Must Be Set ..................................................................... G-9
Set SEL
OGIC
Control Equations Directly to 1 or 0...................................................... G-9
Set SEL
OGIC
Control Equations Directly to 1 or 0 – Example.................................. G-10
SEL
OGIC
Control Equation Limitations ............................................................................ G-10
Processing Order and Processing Interval ................................................................................. G-11
APPENDIX H: DISTRIBUTED NETWORK PROTOCOL (DNP) V3.00.............. H-1
Содержание SEL-351P
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