{"schemaVersion":1,"slug":"ga-window-current-transformer","name":"Window current transformer","kind":"object","abbreviation":"GA","aliases":["ring CT physical object","Window current transformer CAD","Window current transformer general arrangement","Window current transformer panel layout"],"category":"measurement-protection","drawingTypes":["GA","Schematic"],"referenceFamilies":["Manufacturer"],"summary":"A window CT surrounds a conductor or busbar to provide the specified current measurement.","description":["A window CT surrounds a conductor or busbar to provide the specified current measurement.","Coordinate aperture, primary conductor position and secondary terminal access. The GA locates the physical item; the associated schematic or equipment schedule records its electrical interfaces.","The preview is independent educational geometry and is not a manufacturer outline, fabrication drawing or verified standard graphic. Obtain the applicable model drawing from the cited official source before making a dimensional layout."],"readingNotes":["Coordinate aperture, primary conductor position and secondary terminal access.","Aperture fit does not establish ratio, class or protection suitability."],"drawingChecklist":["Confirm the exact equipment identity, drawing revision and installation orientation.","Coordinate aperture, primary conductor position and secondary terminal access.","Cross-reference the terminals, cable routes and service tasks with the equipment schedule."],"distinction":"Aperture fit does not establish ratio, class or protection suitability.","facts":[{"label":"Record type","value":"Generic equipment / layout object"},{"label":"Drawing role","value":"Physical location and interface coordination"},{"label":"Dimensions","value":"Not specified here; use the selected manufacturer drawing"},{"label":"Artwork","value":"Original conceptual envelope; unitless and not to scale"}],"references":[{"sourceId":"instrument-transformers","relevance":"Public manufacturer or design reference relevant to this equipment class."}],"related":["current-transformer","voltage-transformer"],"artwork":"edu-object-ga-window-current-transformer","publishedOn":"2026-10-13","updatedOn":"2026-10-13","provenance":"independent-public-research","url":"https://eloragrid.ai/objects/ga-window-current-transformer","illustration":{"url":"https://eloragrid.ai/library/illustrations/ga-window-current-transformer.svg","scope":"Original educational concept; not an official standard graphic or product footprint","license":"https://creativecommons.org/licenses/by/4.0/"},"sources":[{"id":"instrument-transformers","title":"Indoor current and voltage transformers","publisher":"ABB","url":"https://www.abb.com/gb/en/areas/electrification/medium-voltage/grid-components/core-components/indoor-instrument-transformers","type":"manufacturer","scope":"Public current- and voltage-transformer product families. Ratings, terminals and dimensions depend on the model.","checkedOn":"2026-10-13","reuse":"link-only","relevance":"Public manufacturer or design reference relevant to this equipment class."}]}