| Low Voltage Bushing | Secondary-side transformer bushing and molded connection support | pad-mounted transformer, distribution transformer, secondary terminal area | current rating, mounting pattern, terminal interface, insulation material | front photo, side photo, terminal detail, old drawing or rating mark |
| High Voltage Bushing | Primary-side bushing, bushing well, and deadbreak interface path | oil transformer, pad-mounted transformer, high-voltage cable interface | voltage class, interface type, thread or flange detail, creepage context | bushing photo, cable interface, dimensions, nameplate or drawing |
| Transformer Fuse | Fuse holder, bay-o-net fuse, current limiting fuse, and protection route | oil-immersed transformer, pad-mounted transformer, protection bay | fuse type, voltage class, holder style, mounting position | fuse holder photo, label, cutout position, replacement objective |
| Tap Changer | Tap selection and voltage adjustment component matching path | distribution transformer, oil transformer, pole-mounted transformer | tap positions, operating style, tank interface, rated context | handle photo, tank position, model mark, wiring or drawing reference |
| Transformer Meters | Meter, temperature indicator, oil level, and monitoring accessory support | transformer tank, control area, monitoring accessory panel | range, contact setting, thread or flange type, installation position | dial face, connector, thread detail, existing label |
| Loadbreak Switches | Transformer-mounted loadbreak switch and switching accessory path | oil transformer, pad-mounted transformer, tank-mounted switchgear | position count, voltage/current rating, shaft length, tank interface | switch body photo, handle side, label, mounting and shaft detail |
| Others Transformer Components | Routing path for transformer accessories outside the main six series | transformer accessories, line hardware, maintenance spares | part function, installation location, estimated size, old supplier mark | multi-angle photos, equipment context, quantity, replacement goal |