OREANDA-NEWS. May 18, 2007. Sunday thunderstorm became a cause of 5 overhead transmission lines’ cutoffs in Krasnoufimsk and Artinsk network areas of Western power networks of “Sverdlovenergo” Public Company. In all cases reliable operation of automatic protection was good working and cutoffs lasted no longer than for 3-5 sec.

There were two black outs in Sverdlovsk area of Western power networks. One of them was registered on the line of 110 kW Sverdlovsk state district power plant – Tavatui where automatic protection has happened to be of great help. Second cut off was on the line of 35 kW Sverdlovsk state district power plant – Otdykh. Blast of squally wind opened wires of power line.

Maintenance teams of Sverdlovsk power station, West power networks of “Sverdlovenergo” are working on the line now and do their best to restore power supply as soon as possible.

May thunderstorm became a cause of cutoff of power line 110-0.4 kW in East power networks as well. There were registered cutoffs of one line of 110 kW, another – of 35 kW, and 3 lines of 10 kW. But automatic protection system put them to work in no time. Other 4 lines took some affords to be repaired. There were also short-time black outs in populated localities of Kamyshlov and Bogdanovich areas.

Unscheduled outages were promptly repaired by operating staff.