Optimal Logic for Multi-Channel Protective Systems During On-Line Maintenance
Protective systems have two kinds of failures: failed dangerous (FD) and failed-safe (FS). The former can lead to serious damage to the plant, while the latter can result in financial loss because of unnecessary protective actions. Frequently, protective system channels must be maintained and repair...
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| Veröffentlicht in: | IEEE transactions on reliability 1987-04, Vol.R-36 (1), p.25-31 |
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| container_end_page | 31 |
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| container_issue | 1 |
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| container_title | IEEE transactions on reliability |
| container_volume | R-36 |
| creator | Kohda, Takehisa Kumamoto, Hiromitsu Inoue, Koichi Henley, Ernest J. |
| description | Protective systems have two kinds of failures: failed dangerous (FD) and failed-safe (FS). The former can lead to serious damage to the plant, while the latter can result in financial loss because of unnecessary protective actions. Frequently, protective system channels must be maintained and repaired during plant operation, ie, while they are in service. When this happens, one must choose whether the output of a channel being maintained should be set to the on or off position. On means the protective system protects against the FD failure, and is vulnerable to FS failures. We develop a systematic method to determine the output default values, and solve the more general problem of determining the optimal logic connections for the remaining channels. Analytic formulae are presented for transition failure rates are constant with time, and the channels are in voting configurations. |
| doi_str_mv | 10.1109/TR.1987.5222287 |
| format | Article |
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Analytic formulae are presented for transition failure rates are constant with time, and the channels are in voting configurations.</description><identifier>ISSN: 0018-9529</identifier><identifier>EISSN: 1558-1721</identifier><identifier>DOI: 10.1109/TR.1987.5222287</identifier><identifier>CODEN: IERQAD</identifier><language>eng</language><publisher>New York, NY: IEEE</publisher><subject>Applied sciences ; Condition monitoring ; Exact sciences and technology ; Failed-safe failure ; Failure analysis ; Laboratories ; Logic ; Mechanical engineering ; Multi-channel protective system ; On-line maintenance ; Operational research and scientific management ; Operational research. Management science ; Optimal logic ; Preventive maintenance ; Protection ; Reliability engineering ; Reliability theory ; Reliability theory. 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The former can lead to serious damage to the plant, while the latter can result in financial loss because of unnecessary protective actions. Frequently, protective system channels must be maintained and repaired during plant operation, ie, while they are in service. When this happens, one must choose whether the output of a channel being maintained should be set to the on or off position. On means the protective system protects against the FD failure, and is vulnerable to FS failures. We develop a systematic method to determine the output default values, and solve the more general problem of determining the optimal logic connections for the remaining channels. Analytic formulae are presented for transition failure rates are constant with time, and the channels are in voting configurations.</description><subject>Applied sciences</subject><subject>Condition monitoring</subject><subject>Exact sciences and technology</subject><subject>Failed-safe failure</subject><subject>Failure analysis</subject><subject>Laboratories</subject><subject>Logic</subject><subject>Mechanical engineering</subject><subject>Multi-channel protective system</subject><subject>On-line maintenance</subject><subject>Operational research and scientific management</subject><subject>Operational research. Management science</subject><subject>Optimal logic</subject><subject>Preventive maintenance</subject><subject>Protection</subject><subject>Reliability engineering</subject><subject>Reliability theory</subject><subject>Reliability theory. Replacement problems</subject><subject>Shut-down</subject><subject>Signal analysis</subject><issn>0018-9529</issn><issn>1558-1721</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1987</creationdate><recordtype>article</recordtype><recordid>eNo9kL1PwzAQxS0EEqUwM7B4QGwpthPH9ojKp5SqqJQ5cpxzMUqdYidI_e9J1dJbTqf7vSe9h9A1JRNKibpfLiZUSTHhbBgpTtCIci4TKhg9RSNCqEwUZ-ocXcT4PZxZpuQIzeabzq11g4t25Qy2bcCzvulcMv3S3kOD30PbgencL-CPbexgHfFjH5xf4blPCucBz7TzHXjtDVyiM6ubCFeHPUafz0_L6WtSzF_epg9FYmiey0Sktc40rTiznKhapynTuZYprWwtKiE5FVaYCmRNqaaEKaWIAJMKnnGrLUvH6G7vuwntTw-xK9cuGmga7aHtY8myPGM8lwN4vwdNaGMMYMtNGOKGbUlJuautXC7KXW3lobZBcXuw1tHoxoYhl4tHmWSZEFwN2M0ecwBw_P6b_AET1nTb</recordid><startdate>198704</startdate><enddate>198704</enddate><creator>Kohda, Takehisa</creator><creator>Kumamoto, Hiromitsu</creator><creator>Inoue, Koichi</creator><creator>Henley, Ernest J.</creator><general>IEEE</general><general>Institute of Electrical and Electronics Engineers</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SC</scope><scope>7SP</scope><scope>8FD</scope><scope>JQ2</scope><scope>L7M</scope><scope>L~C</scope><scope>L~D</scope></search><sort><creationdate>198704</creationdate><title>Optimal Logic for Multi-Channel Protective Systems During On-Line Maintenance</title><author>Kohda, Takehisa ; Kumamoto, Hiromitsu ; Inoue, Koichi ; Henley, Ernest J.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c1668-73da4a1b52f509da332a6a831bfd7b78517f7cbe8d11a10299907ec37545faf23</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1987</creationdate><topic>Applied sciences</topic><topic>Condition monitoring</topic><topic>Exact sciences and technology</topic><topic>Failed-safe failure</topic><topic>Failure analysis</topic><topic>Laboratories</topic><topic>Logic</topic><topic>Mechanical engineering</topic><topic>Multi-channel protective system</topic><topic>On-line maintenance</topic><topic>Operational research and scientific management</topic><topic>Operational research. Management science</topic><topic>Optimal logic</topic><topic>Preventive maintenance</topic><topic>Protection</topic><topic>Reliability engineering</topic><topic>Reliability theory</topic><topic>Reliability theory. Replacement problems</topic><topic>Shut-down</topic><topic>Signal analysis</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Kohda, Takehisa</creatorcontrib><creatorcontrib>Kumamoto, Hiromitsu</creatorcontrib><creatorcontrib>Inoue, Koichi</creatorcontrib><creatorcontrib>Henley, Ernest J.</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Computer and Information Systems Abstracts</collection><collection>Electronics & Communications Abstracts</collection><collection>Technology Research Database</collection><collection>ProQuest Computer Science Collection</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>Computer and Information Systems Abstracts Academic</collection><collection>Computer and Information Systems Abstracts Professional</collection><jtitle>IEEE transactions on reliability</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Kohda, Takehisa</au><au>Kumamoto, Hiromitsu</au><au>Inoue, Koichi</au><au>Henley, Ernest J.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Optimal Logic for Multi-Channel Protective Systems During On-Line Maintenance</atitle><jtitle>IEEE transactions on reliability</jtitle><stitle>TR</stitle><date>1987-04</date><risdate>1987</risdate><volume>R-36</volume><issue>1</issue><spage>25</spage><epage>31</epage><pages>25-31</pages><issn>0018-9529</issn><eissn>1558-1721</eissn><coden>IERQAD</coden><abstract>Protective systems have two kinds of failures: failed dangerous (FD) and failed-safe (FS). The former can lead to serious damage to the plant, while the latter can result in financial loss because of unnecessary protective actions. Frequently, protective system channels must be maintained and repaired during plant operation, ie, while they are in service. When this happens, one must choose whether the output of a channel being maintained should be set to the on or off position. On means the protective system protects against the FD failure, and is vulnerable to FS failures. We develop a systematic method to determine the output default values, and solve the more general problem of determining the optimal logic connections for the remaining channels. Analytic formulae are presented for transition failure rates are constant with time, and the channels are in voting configurations.</abstract><cop>New York, NY</cop><pub>IEEE</pub><doi>10.1109/TR.1987.5222287</doi><tpages>7</tpages></addata></record> |
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| identifier | ISSN: 0018-9529 |
| ispartof | IEEE transactions on reliability, 1987-04, Vol.R-36 (1), p.25-31 |
| issn | 0018-9529 1558-1721 |
| language | eng |
| recordid | cdi_pascalfrancis_primary_8247759 |
| source | IEEE Electronic Library (IEL) |
| subjects | Applied sciences Condition monitoring Exact sciences and technology Failed-safe failure Failure analysis Laboratories Logic Mechanical engineering Multi-channel protective system On-line maintenance Operational research and scientific management Operational research. Management science Optimal logic Preventive maintenance Protection Reliability engineering Reliability theory Reliability theory. Replacement problems Shut-down Signal analysis |
| title | Optimal Logic for Multi-Channel Protective Systems During On-Line Maintenance |
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