SEL-311C-1 Transmission Protection System - etouches Transmission Protection System Instruction Manual Date Code 20140730 The relay contains devices sensitive to Electrostatic Discharge

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<ul><li><p>20140730</p><p>SEL-311C-1 Transmission Protection System</p><p>Instruction Manual</p><p>*PM311C-02-NB*</p></li><li><p>SEL-311C-1 Transmission Protection System Instruction Manual Date Code 20140730</p><p>The relay contains devices sensitive to Electrostatic Discharge (ESD). When working on the relay with the front panel removed, work surfaces and personnel must be properly grounded or equipment damage may result.</p><p>! CAUTION</p><p>There is danger of explosion if the battery is incorrectly replaced. Replace only with Ray-O-Vac no. BR2335 or equivalent recommended by manufacturer. Dispose of used batteries according to the manufacturers instructions.</p><p>! CAUTION</p><p>Never apply voltage signals greater than 9 V peak-peak to the low-level test interface (J10) or equipment damage may result.</p><p>! CAUTION</p><p>This device is shipped with default passwords. Default passwords should be changed to private passwords at installation. Failure to change each default password to a private password may allow unauthorized access. SEL shall not be responsible for any damage resulting from unauthorized access.</p><p>! WARNING</p><p>Have only qualified personnel service this equipment. If you are not qualified to service this equipment, you can injure yourself or others, or cause equipment damage.</p><p>! WARNING</p><p>Use of this equipment in a manner other than specified in this manual can impair operator safety safeguards provided by this equipment.</p><p>! WARNING</p><p>Contact with instrument terminals can cause electrical shock that can result in injury or death.</p><p>! DANGER</p><p>Le relais contient des pices sensibles aux dcharges lectrostatiques. Quand on travaille sur le relais avec les panneaux avant ou du dessus enlevs, toutes les surfaces et le personnel doivent tre mis la terre convenablement pour viter les dommages lquipement.</p><p>! ATTENTION</p><p>Il y a un danger dexplosion si la pile lectrique nest pas correctement remplace. Utiliser exclusivement Ray-O-Vac No. BR2335 ou un quivalent recommand par le fabricant. Se dbarrasser des piles usages suivant les instructions du fabricant.</p><p>! ATTENTION</p><p>Au risque de causer des dommages lquipement, ne jamais appliquer un signal de tension suprieur 9 V crte crte linterface de test de bas niveau (J10).</p><p>! ATTENTION</p><p>Cet appareil est expdi avec des mots de passe par dfaut. A linstallation, les mots de passe par dfaut devront tre changs pour des mots de passe confidentiels. Dans le cas contraire, un accs non-autoris lquipement peut tre possible. SEL dcline toute responsabilit pour tout dommage rsultant de cet accs non-autoris.</p><p>! AVERTISSEMENT</p><p>Seules des personnes qualifies peuvent travailler sur cet appareil. Si vous ntes pas qualifis pour ce travail, vous pourriez vous blesser avec dautres personnes ou endommager lquipement.</p><p>! AVERTISSEMENT</p><p>Lutilisation de cet appareil suivant des procdures diffrentes de celles indiques dans ce manuel peut dsarmer les dispositifs de protection doprateur normalement actifs sur cet quipement.</p><p>! AVERTISSEMENT</p><p>Tout contact avec les bornes de lappareil peut causer un choc lectrique pouvant entraner des blessures ou la mort.</p><p>! DANGER</p><p> 20112014 by Schweitzer Engineering Laboratories, Inc. All rights reserved.</p><p>All brand or product names appearing in this document are the trademark or registered trademark of their respective holders. No SEL trademarks may be used without written permission. SEL products appearing in this document may be covered by U.S. and Foreign patents.</p><p>Schweitzer Engineering Laboratories, Inc. reserves all rights and benefits afforded under federal and international copyright and patent laws in its products, including without limitation software, firmware, and documentation.</p><p>The information in this document is provided for informational use only and is subject to change without notice. Schweitzer Engineering Laboratories, Inc. has approved only the English language document.</p><p>This product is covered by the standard SEL 10-year warranty. For warranty details, visit www.selinc.com or contact your customer service representative. PM311C-02</p></li><li><p>Date Code 20140730 Instruction Manual SEL-311C-1 Transmission Protection System</p><p>Table of ContentsList of Tables ........................................................................................................................................................................vii</p><p>List of Figures ....................................................................................................................................................................xiii</p><p>Preface ................................................................................................................................................................................... xix</p><p>Section 1: Introduction and SpecificationsSEL-311C Models ........................................................................................................................................................... 1.1Specifications.................................................................................................................................................................... 1.2</p><p>Section 2: InstallationOverview ........................................................................................................................................................................... 2.1Relay Mounting................................................................................................................................................................ 2.1Front-Panel and Rear-Panel Connection Diagrams.................................................................................................... 2.3Making Rear-Panel Connections................................................................................................................................... 2.9Making Communications Connections ...................................................................................................................... 2.17SEL-311C AC/DC Connection Diagrams for Various Applications .................................................................... 2.20Circuit Board Connections and Jumpers.................................................................................................................... 2.25</p><p>Section 3: Distance, Out-of-Step, Overcurrent, Voltage, Synchronism-Check, and Frequency Elements</p><p>Overview ........................................................................................................................................................................... 3.1Distance Elements............................................................................................................................................................ 3.1Out-of-Step Characteristics .......................................................................................................................................... 3.30Instantaneous/Definite-Time Overcurrent Elements................................................................................................ 3.37Time-Overcurrent Elements ......................................................................................................................................... 3.44Voltage Elements............................................................................................................................................................ 3.50Synchronism-Check Elements..................................................................................................................................... 3.55Frequency Elements ...................................................................................................................................................... 3.71</p><p>Section 4: Loss-of-Potential, CCVT Transient Detection, Load-Encroachment, and Directional Element Logic</p><p>Overview ........................................................................................................................................................................... 4.1Loss-of-Potential Logic .................................................................................................................................................. 4.1CCVT Transient Detection Logic ............................................................................................................................... 4.11Load-Encroachment Logic ........................................................................................................................................... 4.12Directional Control for Ground Distance and Residual-Ground Overcurrent Elements ................................... 4.16Directional Control for Phase Distance and Negative-Sequence Overcurrent Elements .................................. 4.25Directional Control Settings......................................................................................................................................... 4.28Overcurrent Directional Control Provided by Torque Control Settings ............................................................... 4.38</p><p>Section 5: Trip and Target LogicOverview ........................................................................................................................................................................... 5.1Trip Logic.......................................................................................................................................................................... 5.1Switch-Onto-Fault (SOTF) Trip Logic......................................................................................................................... 5.8Communications-Assisted Trip LogicGeneral Overview................................................................................... 5.13Permissive Overreaching Transfer Trip (POTT) Logic ........................................................................................... 5.16Directional Comparison Unblocking (DCUB) Logic.............................................................................................. 5.22Directional Comparison Blocking (DCB) Logic...................................................................................................... 5.27Breaker Failure Protection............................................................................................................................................ 5.32Front-Panel Target LEDs .............................................................................................................................................. 5.35</p></li><li><p>ii</p><p>SEL-311C-1 Transmission Protection System Instruction Manual Date Code 20140730</p><p>Table of Contents</p><p>Section 6: Close and Reclose LogicOverview ........................................................................................................................................................................... 6.1Breaker Status Logic....................................................................................................................................................... 6.2Close Logic....................................................................................................................................................................... 6.2Reclose Supervision Logic............................................................................................................................................. 6.5Reclosing Relay ............................................................................................................................................................. 6.11</p><p>Section 7: Inputs, Outputs, Timers, and Other Control LogicOverview ........................................................................................................................................................................... 7.1Optoisolated Inputs ......................................................................................................................................................... 7.1Local Control Switches .................................................................................................................................................. 7.5Remote Control Switches............................................................................................................................................... 7.9Latch Control Switches ................................................................................................................................................ 7.10Multiple Setting Groups ............................................................................................................................................... 7.16SELOGIC Control Equation Variables/Timers........................................................................................................... 7.25Logic Variables .............................................................................................................................................................. 7.30Virtual Bits...................................................................................................................................................................... 7.32Output Contacts ............................................................................................................................................................. 7.32Rotating Display ............................................................................................................................................................ 7.37</p><p>Section 8: Metering and MonitoringOverview ........................................................................................................................................................................... 8.1Breaker Monitor............................................................................................................................................................... 8.1Station DC Battery Monitor......................................................................................................................................... 8.13Fundamental (Instantaneous) Metering ..................................................................................................................... 8.17Wye- and Delta-Voltage Connections for Metering................................................................................................. 8.18Demand Metering .......................................................................................................................................................... 8.19Energy Metering ............................................................................................................................................................ 8.27Maximum/Minimum Metering ................................................................................................................................... 8.28Small Signal Cutoff for Metering ..................................................................................................</p></li></ul>