Transmission corridor. Five towers carry a line across open country to a substation. Span t2–t3: 451 m. Corridor length: 1.8 km.

Five towers carry a line across open country to a substation.

01/04

Field environments

Transmission corridor

Lattice towers carry a line across open country; conductor sensors report temperature and sag, and the substation edge brings them into the grid operator’s systems.

Tour transcript

1. Five towers carry a line across open country to a substation.
2. A sensor on the conductor reports temperature and sag.
3. Wind across the line sets how much it can carry.
4. The substation edge brings it all into the operator’s systems.

In this scene

Conductor sensor

Measures conductor temperature and sag so the operator can rate the line by the weather, not a fixed limit. (IEEE 738, CIGRE TB 601)

Compute racks

Brings readings into the operator’s systems on an isolated, attested path. (IEC 61850, IEC 62351, NERC CIP)

line-wx

Wind across the line and solar heating set the line’s real capacity. (IEEE 738, WMO-No. 8)