{"schemaVersion":1,"slug":"ev-residual-current-detection","name":"EV charging residual-current detection","kind":"symbol","abbreviation":"RCD EV","aliases":["EV charging residual-current detection","EV charging residual-current detection functional block","EV charging residual-current detection schematic reference"],"category":"microgrid-systems","drawingTypes":["Schematic"],"referenceFamilies":["Manufacturer"],"summary":"Residual-current detection checks for specified unintended current paths in a charging system.","description":["Residual-current detection checks for specified unintended current paths in a charging system.","Charging equipment can use a detection result to request disconnection through its protective arrangement.","Show the conductors included in the measurement and the signal sent to the charging controller or protective device. The detector looks for a specified imbalance or leakage condition. Its block should not imply that sensing and opening the power circuit happen in the same physical component. This is original functional artwork, not a certified standard graphic or device pinout."],"readingNotes":["Identify the conductors included in the detection arrangement.","Reference the types of residual current the selected device detects.","Show the trip or shutdown connection to the interrupting device.","A detector and the device that physically disconnects power are not automatically the same component."],"drawingChecklist":["Identify the conductors included in the detection arrangement.","Reference the types of residual current the selected device detects.","Show the trip or shutdown connection to the interrupting device."],"distinction":"A detector and the device that physically disconnects power are not automatically the same component.","facts":[{"label":"Representation type","value":"Original functional block; not a certified IEC or IEEE graphic"},{"label":"Concept input","value":"Monitored charging conductors"},{"label":"Concept output","value":"Trip or shutdown signal"}],"references":[{"sourceId":"expansion-20261027-ev","relevance":"AC electric vehicle charging architecture: public technical context for the named function. Product and compliance details remain with the publisher."}],"related":["contactor","ac-ev-charge-point","ev-control-pilot-interface","ev-charging-contactor-control"],"artwork":"expanded-ev-residual-current-detection","publishedOn":"2026-10-27","updatedOn":"2026-10-27","provenance":"independent-public-research","plainEnglish":{"title":"What does EV charging residual-current detection mean?","introduction":"Residual-current detection checks for specified unintended current paths in a charging system.","example":"Charging equipment can use a detection result to request disconnection through its protective arrangement.","drawings":"Show the conductors included in the measurement and the signal sent to the charging controller or protective device. The detector looks for a specified imbalance or leakage condition. Its block should not imply that sensing and opening the power circuit happen in the same physical component.","terms":[{"name":"Residual current","meaning":"The imbalance assessed by the selected current-sensing arrangement."},{"name":"Trip signal","meaning":"A command asking the associated switching device to interrupt its circuit."}],"diagram":"flow","caption":"Original functional explanation. Arrows show information or energy roles; two-headed arrows identify two-way interfaces. This is not a pinout, certified standards graphic or complete circuit.","sources":[{"label":"AC electric vehicle charging architecture","url":"https://www.ti.com/solution/ac-charging-pile-station"}],"profileId":"researched-functional-reference","checklist":["Identify the conductors included in the detection arrangement.","Reference the types of residual current the selected device detects.","Show the trip or shutdown connection to the interrupting device."],"questions":[{"question":"Is this block a complete protective disconnection device?","answer":"Not necessarily. A detector may only issue a signal. The selected protective arrangement must identify the switching hardware and how the detected condition causes the required interruption."}],"steps":["Monitored charging conductors","Residual-current detector","Trip or shutdown signal"],"bidirectional":false},"url":"https://eloragrid.ai/symbols/ev-residual-current-detection","illustration":{"url":"https://eloragrid.ai/tools/electrical-library/illustrations/ev-residual-current-detection.svg","scope":"Original educational concept; not an official standard graphic or product footprint","license":"https://creativecommons.org/licenses/by/4.0/"},"sources":[{"id":"expansion-20261027-ev","title":"AC electric vehicle charging architecture","publisher":"Texas Instruments","url":"https://www.ti.com/solution/ac-charging-pile-station","type":"manufacturer","scope":"Public functional documentation. Original explanatory text and educational block artwork; no publisher graphics or files reproduced.","checkedOn":"2026-10-27","reuse":"link-only","relevance":"AC electric vehicle charging architecture: public technical context for the named function. Product and compliance details remain with the publisher."}]}