What type of special operation procedure is used to relieve an overloaded transmission path?

The Transmission Line-Loading Relief Procedure is specifically designed to address the issue of an overloaded transmission path. When a transmission line carries more electrical load than it can safely handle, it can become a risk for failure, leading to potential cascading outages and reliability issues in the grid.

This procedure involves implementing strategies to reduce the load on the affected transmission line to ensure that it operates within its safe capacity range. Techniques may include redistributing power flows, curtailing generation, or changing flow patterns through other lines. This targeted approach directly addresses the problem of line loading, making it the most suitable procedure for relieving overloads on transmission paths.

The other options offered might relate to different operational scenarios in power systems but do not specifically target the issue of a transmission line being overloaded. For example, voltage reduction procedures are aimed at managing voltage levels across the system rather than directly addressing line overloads. Load shedding procedures involve disconnecting certain consumers to maintain system reliability but are not limited to managing just one transmission line's capacity. Similarly, while transmission grid stabilization can refer to various strategies for ensuring overall grid reliability, it lacks the focused intent of the line-loading relief procedure in resolving an overload condition.