{"schemaVersion":1,"slug":"station-dc-bus-tie-operating-interface","name":"Station DC bus-tie operating interface","kind":"symbol","abbreviation":"SDBOI","aliases":["Station battery and charger distribution","substations Station battery and charger distribution","substations","Substations","DC tie command and states","Assigned bus-tie action"],"category":"measurement-protection","drawingTypes":["Schematic"],"referenceFamilies":["Manufacturer"],"summary":"Identifies the command and conditions associated with the selected DC bus connection.","description":["Identifies the command and conditions associated with the selected DC bus connection. A station battery system supplies protection, control and other assigned DC loads through a documented charger and distribution arrangement. Charger output, battery contribution and load distribution are related but separately monitored paths.","In a substation control building, the battery can support breaker trip circuits while the charger AC supply is unavailable. Supervision must identify whether the charger, battery or a downstream feeder is affected. For this reference, the drawing identifies “DC tie command and states” at the input and “Assigned bus-tie action” at the output. DC-source compatibility must be assessed.","Identify every source, protective device, isolation boundary and return. Battery capacity, DC fault duty, charging settings and ventilation require the selected battery-system design; illustrative circuits do not establish autonomy. 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: DC tie command and states. Identify its source device or document and the state represented on the drawing.","Follow the named output: Assigned bus-tie action. Cross-reference its destination and separate the command from confirmation that the equipment responded.","DC-source compatibility must be assessed.","Identify every source, protective device, isolation boundary and return. Battery capacity, DC fault duty, charging settings and ventilation require the selected battery-system design; illustrative circuits do not establish autonomy."],"drawingChecklist":["Label the source and connection reference for dc tie command and states.","Identify the destination and defined state of assigned bus-tie action.","Record the equipment or control-document revision supporting this functional block.","Check this application limit in the project design: DC-source compatibility must be assessed."],"distinction":"DC-source compatibility must be assessed. 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":"Substations"},{"label":"Input / boundary","value":"DC tie command and states"},{"label":"Output / connection","value":"Assigned bus-tie action"},{"label":"Lookup label","value":"SDBOI is a library lookup label, not a standard device designation."}],"references":[{"sourceId":"pi26-station-dc","relevance":"Public technical context for station battery and charger distribution. Battery charging modes, DC distribution interfaces and charger alarms. The application text and educational graphic are independently authored; the publisher does not certify this representation."}],"related":["ga-station-dc-battery-rack","ga-battery-charger","station-dc-essential-load-priority-map"],"artwork":"pi26-station-dc-bus-tie-operating-interface","publishedOn":"2026-11-03","updatedOn":"2026-11-03","provenance":"independent-public-research","representation":{"type":"functional-block","focus":"substations","family":"station-battery","input":"DC tie command and states","output":"Assigned bus-tie action"},"plainEnglish":{"title":"What this block does","introduction":"Identifies the command and conditions associated with the selected DC bus connection.","example":"In a substation control building, the battery can support breaker trip circuits while the charger AC supply is unavailable. Supervision must identify whether the charger, battery or a downstream feeder is affected. For this reference, the drawing identifies “DC tie command and states” at the input and “Assigned bus-tie action” at the output. DC-source compatibility must be assessed.","drawings":"Start at the named input: DC tie command and states. Identify its source device or document and the state represented on the drawing. Follow the named output: Assigned bus-tie action. Cross-reference its destination and separate the command from confirmation that the equipment responded.","terms":[{"name":"Input","meaning":"DC tie command and states"},{"name":"Output","meaning":"Assigned bus-tie action"},{"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":["DC tie command and states","SDBOI","Assigned bus-tie action"],"caption":"A reading guide. The entry's original illustration and input/output facts describe this application.","sources":[{"label":"MicroGenius S2/S4 battery charger technical manual","url":"https://www.sens-usa.com/hubfs/Controlled%20Files/Manuals/101330_MGS_User_Manual.pdf"}],"profileId":"power-installation-station-battery"},"url":"https://eloragrid.ai/symbols/station-dc-bus-tie-operating-interface","illustration":{"url":"https://eloragrid.ai/tools/electrical-library/illustrations/station-dc-bus-tie-operating-interface.svg","scope":"Original educational concept; not an official standard graphic or product footprint","license":"https://creativecommons.org/licenses/by/4.0/"},"sources":[{"id":"pi26-station-dc","publisher":"SENS","title":"MicroGenius S2/S4 battery charger technical manual","url":"https://www.sens-usa.com/hubfs/Controlled%20Files/Manuals/101330_MGS_User_Manual.pdf","scope":"Battery charging modes, DC distribution interfaces and charger alarms.","type":"manufacturer","checkedOn":"2026-11-03","reuse":"link-only","relevance":"Public technical context for station battery and charger distribution. Battery charging modes, DC distribution interfaces and charger alarms. The application text and educational graphic are independently authored; the publisher does not certify this representation."}]}