FOGrid for cable thermal rating

Deciding how much load a circuit carries requires its temperature measurements to be related to the conductor and its operating history. FOGrid is the integrated cable solution from FEBUS Optics. Its Real-Time Thermal Rating algorithm uses distributed temperatures and load records to assess the represented electrical cable route.

Selected G1 temperature instruments measure the fibre along the cable. The rack-mounted G1-R or portable G1-C supplies the acquisition arrangement. The thermal model combines fibre temperatures with electrical load, earlier loading and ambient thermal conditions to calculate conductor-temperature profiles. FOGrid Suite, the cable event and visualization software, presents critical spots and generates located alerts. Selected system connections bring the calculated records into the operating workflow through the FO Suite family's Modbus/IP interface.

Operators examine the modeled conductor temperatures and calculated loading limits for steady-state or emergency scenarios. Those results inform the team's circuit assessment and the investigation of critical sections. The model connects the physical temperature measurements with the history needed to interpret loading along the route. Project training, technical support and selected service arrangements assist the team with its configured measurement and thermal-rating programme.