Real-scale 3D assets of electrical power grid equipment, made for training, simulation, games and VR in Unity.
Substation 138 kV Kit
A kit of 14 generic 138 kV substation equipment models at real scale (1 unit = 1 m), with operable parts, connection
points on every terminal and a conductor tool, so a whole bay can be assembled and operated inside Unity.
Built for URP and Built-in render pipelines, Unity 6000.0 LTS or newer.
14 prefabsbreaker, 3 disconnector types, CT, VT, surge arrester, post insulator, line trap, insulator strings, gantries, power transformer
Complete 138 kV line bay, assembled in the real order of equipmentLine entry: gantry with anchor strings and the semi-pantograph disconnector under the switch beamSemi-pantograph disconnector open: arms folded along the span, 15° above horizontalCenter-break disconnector, blades open138 kV live-tank circuit breaker on its lattice supportCurrent and voltage transformers, surge arrester and line trap138/13.8 kV power transformer with bushings, conservator, radiators and control cabinetThe same bay with every operable part openWireframe: clean quad-based topology, LOD0Side view with the 1.75 m scale figureLine entry, disconnector closed: arms straight up
Brazilian Power Distribution Kit
Brazilian street power lines in minutes: generic concrete double-T poles, 13.8 kV crossarms (bare and compact spacer
networks), pole-mounted transformers, low-voltage racks, street lights, service entrances, guy wires and the familiar
tangle of telecom cables, placed along a path by the Line Builder tool. Built for URP and Built-in render pipelines,
Unity 6000.0 LTS or newer.
37 prefabspoles 9 to 12 m, crossarms N1/N3/N4, compact network, transformer 75 kVA, cutouts and arresters, LV racks, street lights, telecom, guy wires, service entrance, street details
Line BuilderShift + click points: poles, structures by angle, guy wires, conductors with sag, telecom tangle and service drops
5 pre-assembled polestangent, transformer, dead end, switches and low voltage only
Demo_StreetBR at dusk: the network built by the Line Builder along a whole streetTransformer pole: fuse cutouts, surge arresters, 75 kVA transformer, low-voltage drops and street lightThree telecom messengers with the tangle mode: different sag, slack loops and splice closuresCompact spacer network: dead end with polymer strings and diamond spacersPre-assembled poles, ready to drop in a sceneStreet light on, service drops to the housesBrazilian details: an ovenbird nest on the crossarmA kite caught in the low-voltage wiresAerial view of the demo street with the street lights onThe same street by dayWireframe of the pole-mounted transformer, LOD0
How the assets are made
Every mesh is generated by the author's own Python toolchain for Blender, from typical dimensions of public standards (138 kV substations, 13.8 kV and low-voltage distribution). Models are generic, not a manufacturer's product.
Textures are procedural and tileable (1 m per repetition), with albedo, normal and metallic/smoothness maps.
Each piece passes an automatic geometry check (scale, normals, penetrations, operable-part travel) before it is accepted, and each package is imported into empty URP and Built-in projects before release.
Claude (Anthropic) was used as a coding assistant for parts of the toolchain and the C# scripts, under the author's direction and review. No generative AI was used for meshes, textures or images.
About
Arkeh_3D is the publisher name of Bruno Goyatá, who builds digital twins of electrical substations for training in VR and on PC.
The kits come from that work: the same equipment types, the same real-scale rules, made generic for the Asset Store.
