Power transmission line (PTL) inspection

Power transmission line (PTL) inspection: It is of high importance to periodically monitor PTL in order to reduce risks of emergency situations and to provide reliable lines’ operation.

Fog Global Technologies provides monitoring with an unmanned aerial vehicle (UAV).

Monitoring with an UAV equals in-situ one and sometimes surpasses it. For instance, when determining the distance between overhead line towers, data inaccuracy with an UAV is less than 10 cm while manual GPS receivers may contain inaccuracy up to 5 m.

Applications

Far Distribution for Grid Company: Identifying narrow spots and wood growth in the forest clearance, determining the distances from the electric wires to the vegetation and to other overhead lines, determining the accuracy of the overhead line span length, clearance width, distances to buildings and structures in the protective zone.
Identifying forested areas that require cutting trees, woody growth and shrubs.

Functionality
• Measure dimensions and slack of the wire;
• Measure the forestry area;
• Find out the vegetation dangerous to wires;
• Measure distances with respect to terrain;
• Measure slops, difference of height, ground distance;
• Measure the area on digital terrain model (DTM) and digital surface model (DSM);
• Export the reports as XML file;
• Render the trees impact zones.