{"schemaVersion":1,"slug":"station-charger-redundant-unit-sharing-interface","name":"Station charger redundant-unit sharing interface","kind":"symbol","abbreviation":"SCRSI","aliases":["Station battery and charger distribution","substations Station battery and charger distribution","substations","Substations","Charger availability and load","Coordinated charger contribution"],"category":"measurement-protection","drawingTypes":["Schematic"],"referenceFamilies":["Manufacturer"],"summary":"Identifies the documented coordination between chargers serving the assigned station DC system.","description":["Identifies the documented coordination between chargers serving the assigned station DC system. 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 “Charger availability and load” at the input and “Coordinated charger contribution” at the output. Parallel operation requires compatible equipment.","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: Charger availability and load. Identify its source device or document and the state represented on the drawing.","Follow the named output: Coordinated charger contribution. Cross-reference its destination and separate the command from confirmation that the equipment responded.","Parallel operation requires compatible equipment.","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 charger availability and load.","Identify the destination and defined state of coordinated charger contribution.","Record the equipment or control-document revision supporting this functional block.","Check this application limit in the project design: Parallel operation requires compatible equipment."],"distinction":"Parallel operation requires compatible equipment. 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":"Charger availability and load"},{"label":"Output / connection","value":"Coordinated charger contribution"},{"label":"Lookup label","value":"SCRSI 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-battery-incoming-isolation-boundary"],"artwork":"pi26-station-charger-redundant-unit-sharing-interface","publishedOn":"2026-11-03","updatedOn":"2026-11-03","provenance":"independent-public-research","representation":{"type":"functional-block","focus":"substations","family":"station-battery","input":"Charger availability and load","output":"Coordinated charger contribution"},"plainEnglish":{"title":"What this block does","introduction":"Identifies the documented coordination between chargers serving the assigned station DC system.","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 “Charger availability and load” at the input and “Coordinated charger contribution” at the output. Parallel operation requires compatible equipment.","drawings":"Start at the named input: Charger availability and load. Identify its source device or document and the state represented on the drawing. Follow the named output: Coordinated charger contribution. Cross-reference its destination and separate the command from confirmation that the equipment responded.","terms":[{"name":"Input","meaning":"Charger availability and load"},{"name":"Output","meaning":"Coordinated charger contribution"},{"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":["Charger availability and load","SCRSI","Coordinated charger contribution"],"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-charger-redundant-unit-sharing-interface","illustration":{"url":"https://eloragrid.ai/tools/electrical-library/illustrations/station-charger-redundant-unit-sharing-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."}]}