{"schemaVersion":1,"slug":"shunt-reactor-switching-bay-arrangement","name":"Shunt-reactor switching bay arrangement","kind":"symbol","abbreviation":"SSBA","aliases":["Switchyard bay circuit arrangements","switchyards Switchyard bay circuit arrangements","switchyards","Switchyards","Bus or line connection","Shunt-reactor circuit"],"category":"power-distribution","drawingTypes":["Schematic"],"referenceFamilies":["Manufacturer"],"summary":"Connects the selected shunt reactor through its assigned switching and measurement interfaces.","description":["Connects the selected shunt reactor through its assigned switching and measurement interfaces. A bay circuit arrangement groups the switching, measuring and protection interfaces associated with a specific network circuit. A line bay, transformer bay and reactor bay share some devices but connect different kinds of primary equipment.","In a switchyard single-line drawing, the bay arrangement helps the reader follow the circuit from its bus connection to the external line, transformer or compensation equipment and identify the measurement boundaries along the path. For this reference, the drawing identifies “Bus or line connection” at the input and “Shunt-reactor circuit” at the output. Switching duty depends on the reactor application.","Preserve the actual order of primary connections, isolation points and CT locations. These conceptual arrangements do not establish equipment clearances, terminal layouts or an approved switching sequence. The functional block is an independent explanation of this named application. Equipment-specific ratings, terminal connections and operating conditions must be established in the project documentation."],"readingNotes":["Start at the named input: Bus or line connection. Identify its source device or document and the state represented on the drawing.","Follow the named output: Shunt-reactor circuit. Cross-reference its destination and separate the command from confirmation that the equipment responded.","Switching duty depends on the reactor application.","Preserve the actual order of primary connections, isolation points and CT locations. These conceptual arrangements do not establish equipment clearances, terminal layouts or an approved switching sequence."],"drawingChecklist":["Label the source and connection reference for bus or line connection.","Identify the destination and defined state of shunt-reactor circuit.","Record the equipment or control-document revision supporting this functional block.","Check this application limit in the project design: Switching duty depends on the reactor application."],"distinction":"Switching duty depends on the reactor application. This reference describes the named application; it does not establish a new IEC graphical symbol, an ANSI device-function number or an exact manufacturer connection diagram.","facts":[{"label":"Representation","value":"Functional block"},{"label":"Installation focus","value":"Switchyards"},{"label":"Input / boundary","value":"Bus or line connection"},{"label":"Output / connection","value":"Shunt-reactor circuit"},{"label":"Lookup label","value":"SSBA is a library lookup label, not a standard device designation."}],"references":[{"sourceId":"pi26-bus-schemes","relevance":"Public technical context for switchyard bay circuit arrangements. Bay arrangements and coordinated breaker controls. The application text and educational graphic are independently authored; the publisher does not certify this representation."}],"related":["circuit-breaker","current-transformer","capacitor-bank-switching-bay-arrangement"],"artwork":"pi26-shunt-reactor-switching-bay-arrangement","publishedOn":"2026-11-03","updatedOn":"2026-11-03","provenance":"independent-public-research","representation":{"type":"functional-block","focus":"switchyards","family":"yard-bays","input":"Bus or line connection","output":"Shunt-reactor circuit"},"plainEnglish":{"title":"What this block does","introduction":"Connects the selected shunt reactor through its assigned switching and measurement interfaces.","example":"In a switchyard single-line drawing, the bay arrangement helps the reader follow the circuit from its bus connection to the external line, transformer or compensation equipment and identify the measurement boundaries along the path. For this reference, the drawing identifies “Bus or line connection” at the input and “Shunt-reactor circuit” at the output. Switching duty depends on the reactor application.","drawings":"Start at the named input: Bus or line connection. Identify its source device or document and the state represented on the drawing. Follow the named output: Shunt-reactor circuit. Cross-reference its destination and separate the command from confirmation that the equipment responded.","terms":[{"name":"Input","meaning":"Bus or line connection"},{"name":"Output","meaning":"Shunt-reactor circuit"},{"name":"Application reference","meaning":"An explanation of a named drawing function or circuit relationship; the project documents define the equipment and its connections."}],"diagram":"flow","steps":["Bus or line connection","SSBA","Shunt-reactor circuit"],"caption":"A reading guide. The entry's original illustration and input/output facts describe this application.","sources":[{"label":"SEL-451 protection, automation and bay control","url":"https://selinc.com/products/451/"}],"profileId":"power-installation-yard-bays"},"url":"https://eloragrid.ai/symbols/shunt-reactor-switching-bay-arrangement","illustration":{"url":"https://eloragrid.ai/tools/electrical-library/illustrations/shunt-reactor-switching-bay-arrangement.svg","scope":"Original educational concept; not an official standard graphic or product footprint","license":"https://creativecommons.org/licenses/by/4.0/"},"sources":[{"id":"pi26-bus-schemes","publisher":"SEL","title":"SEL-451 protection, automation and bay control","url":"https://selinc.com/products/451/","scope":"Bus arrangements, breaker control and bay-level coordination.","type":"manufacturer","checkedOn":"2026-11-03","reuse":"link-only","relevance":"Public technical context for switchyard bay circuit arrangements. Bay arrangements and coordinated breaker controls. The application text and educational graphic are independently authored; the publisher does not certify this representation."}]}