Substation 138 kV Kit

This kit is for building scenes for substation training, games in general, VR simulators, companies and technical schools.

What makes it different: parts that move, connection points, real scale, and a bay assembled in the correct order.

Right after importing, you can open the Demo, explore the bay, operate the disconnectors and connect conductors between the equipment.

WHAT IS INSIDE
• 14 prefabs: live-tank circuit breaker; centre-break, double-break and semi-pantograph disconnectors; current transformer; voltage transformer; surge arrester; post insulator; line trap; single and double insulator strings; gantry; gantry with switch beam; 138/13.8 kV power transformer.
• A 1.75 m scale figure.
• 2 scenes: Demo_Bay138kV, a complete line bay in the real order of equipment, and Showcase, every piece side by side.
• Scripts: OperablePart (Open / Close / Toggle), ConnectionPoint on every terminal, ConductorSpan (links two points with sag and radius, in the editor and at runtime) and KitDemoController (orbit camera, click a part to open or close it, O opens all, C closes all).
• 8 shared PBR materials, 24 tileable textures 1024 × 1024 (albedo, normal, metallic + smoothness), label atlas 256 × 256.
• Documentation in PDF.

MADE FOR REAL-TIME
• 3 LODs per prefab with LOD Group, primitive colliders, 8 materials shared by the whole kit (SRP Batcher), UV2 generated on import.
• Demo scene: 552 k triangles, 184 renderers, 1 307 fps average and 580 fps 1 % low in a 60-second player build (RTX 4050, 1920 × 1080).

COMPATIBILITY
• Unity 6000.0 LTS or newer.
• URP out of the box. Built-in Render Pipeline: import Extras/BuiltInRP_Materials.unitypackage. HDRP is not supported.
• No dependencies. The Input System package is optional.

GOOD TO KNOW
• The models are generic, based on typical 138 kV dimensions; they do not reproduce any manufacturer's product.
• ConductorSpan uses a parabola, a close approximation of the catenary up to about 10 % sag.