Schweitzer Engineering SEL-351P - Page 599

ii 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