Page 1 SEL-351A DISTRIBUTION PROTECTION SYSTEM DIRECTIONAL OVERCURRENT RELAY RECLOSING RELAY FAULT LOCATOR INTEGRATION ELEMENT STANDARD INSTRUCTION MANUAL SCHWEITZER ENGINEERING LABORATORIES, INC. 2350 NE HOPKINS COURT PULLMAN, WA USA 99163-5603 TEL: (509) 332-1890 FAX: (509) 332-7990...
Page 2 This product is covered by U.S. Patent Numbers: 5,041,737; 5,208,545; 5,317,472; 5,349,490; 5,365,396; 5,367,426; 5,479,315; 5,515,227; 5,602,707; 5,694,281; 5,790,418; 5,883,578. U.S. Patent(s) Pending, and Foreign Patent(s) Issued and Pending. This product is covered by the standard SEL 10-year warranty. For warranty details, visit www.selinc.com or contact your customer service representative.
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Page 7 Appendix F: Setting Negative-Sequence Overcurrent Elements ® Appendix G: Setting SEL Control Equations OGIC Appendix H: Distributed Network Protocol (DNP) 3.00 Appendix I: Using SEL-251 and SEL-267 Relay Settings in the SEL-351A Relay Appendix J: SEL-5030 ™ ERATOR SECTION 15: SEL-351 RELAY COMMAND SUMMARY...
Page 9: Table Of Contents
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Page 11: Section 1: Introduction And Specifications
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Page 27: Table Of Contents
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Page 28: Section 2: Installation
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Page 311 3DJH RI ETTINGS HEET SEL-351A R 'DWH FOR THE ELAY ELAY ETTINGS ERIAL OMMAND RONT ANEL Neutral Ground Inst./Def.-Time Overcurrent Elements—Channel IN (See Figures 3.8 and 3.9) 1XPEHU RI QHXWUDO JURXQG HOHPHQW SLFNXS VHWWLQJV GHSHQGHQW RQ SUHFHGLQJ HQDEOH VHWWLQJ (1 ±...
Page 312 3DJH RI ETTINGS HEET SEL-351A R 'DWH FOR THE ELAY ELAY ETTINGS ERIAL OMMAND RONT ANEL Negative-Sequence Inst./Def.-Time Overcurrent Elements (See Figures 3.12 and 3.13)* 1XPEHU RI QHJDWLYHVHTXHQFH HOHPHQW WLPH GHOD\ VHWWLQJV GHSHQGHQW RQ SUHFHGLQJ HQDEOH VHWWLQJ (4 ±...
Page 313 3DJH RI ETTINGS HEET SEL-351A R 'DWH FOR THE ELAY ELAY ETTINGS ERIAL OMMAND RONT ANEL C-Phase Time-Overcurrent Element (See Figure 3.17) 0DNH WKH IROORZLQJ VHWWLQJV LI SUHFHGLQJ HQDEOH VHWWLQJ (3 3LFNXS 2)) ± $ ^ $ QRP` ± $ ^ $ QRP` &3...
Page 314 3DJH RI ETTINGS HEET SEL-351A R 'DWH FOR THE ELAY ELAY ETTINGS ERIAL OMMAND RONT ANEL Load-Encroachment Elements (See Figure 4.2) 0DNH WKH IROORZLQJ VHWWLQJV LI SUHFHGLQJ HQDEOH VHWWLQJ (/2$' < )RUZDUG ORDG LPSHGDQFH ± W VHFRQGDU\ ^ $ QRP` ± W VHFRQGDU\ ^ $ QRP`...
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Page 316 3DJH RI ETTINGS HEET SEL-351A R 'DWH FOR THE ELAY ELAY ETTINGS ERIAL OMMAND RONT ANEL Synchronism Check Elements (See Figures 3.24 and 3.25) 0DNH WKH IROORZLQJ VHWWLQJV LI SUHFHGLQJ HQDEOH VHWWLQJ ( < 9ROWDJH ZLQGRZ²ORZ WKUHVKROG ± 9 VHFRQGDU\ 9/2 9ROWDJH ZLQGRZ²KLJK WKUHVKROG ± 9 VHFRQGDU\...
Page 317 3DJH RI ETTINGS HEET SEL-351A R 'DWH FOR THE ELAY ELAY ETTINGS ERIAL OMMAND RONT ANEL Switch-Onto-Fault (See Figure 5.3) 0DNH WKH IROORZLQJ VHWWLQJV LI SUHFHGLQJ HQDEOH VHWWLQJ (627) < &ORVH HQDEOH WLPH GHOD\ 2)) ± F\FOHV LQ F\FOH VWHSV &/2(1'...
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Page 373 SEL-351A RELAY COMMAND SUMMARY Access Level 0 Access Level 0 is the initial relay access level. The relay automatically Command returns to Access Level 0 when a serial port time-out setting expires or after a QUIT command. The screen prompt is: = $&&...
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Page 437 'DWD 0DS + 5HOD\ 6XPPDU\ (YHQW 'DWD + 3RLQW 5HPDSSLQJ + APPENDIX I: USING THE SEL-251 AND SEL-267 RELAY SETTINGS IN THE SEL-351A RELAY .............I-1 2YHUYLHZ , 0DLQ 'LIIHUHQFHV %HWZHHQ 6HWWLQJV RQ WKH 6(/ 6(/ DQG 6(/$ 5HOD\V,...
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Page 439: Appendix A: Firmware Versions
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Page 441: Appendix B: Firmware Upgrade Instructions
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Page 447: Appendix C: Sel Distributed Port Switch Protocol
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Page 449: Appendix D: Configuration, Fast Meter , And Fast Operate Commands
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Page 513 SEL-351A RELAY COMMAND SUMMARY Access Level 0 Access Level 0 is the initial relay access level. The relay automatically Command returns to Access Level 0 when a serial port time-out setting expires or after a QUIT command. The screen prompt is: = $&&...
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Page 517 SEL-351A RELAY COMMAND SUMMARY Access Level 0 Access Level 0 is the initial relay access level. The relay automatically Command returns to Access Level 0 when a serial port time-out setting expires or after a QUIT command. The screen prompt is: = $&&...
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Sel -351A Instruction Manual

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