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Rosseti Volga

August 25, 2015

Specialists of Ulyanovsk Branch OF IDGC of Volga, PJSC struggle for reliable power supply to Sengiley

Specialists of Ulyanovsk Distribution Grids (UDG), a branch of IDGC of Volga, PJSC (a member of Rosseti Group of Companies), overhaul the Sengiley-Gorod Substation. Power sector specialists have already replaced stick-pedestal insulation and repaired an outdoor switchgear, 10 kV outdoor switchgear and control gear, thirteen 10 kV circuit breakers and three disconnecting switches. Employees of the substation service mounted V-shape suspension devices on high-frequency guards to mitigate the risk of equipment damage which may be caused by mechanical connection wear induced by the wind loads. The repair of two power transformers involved painting, replacement of silicone gel in dehydrating filter breathers and repair of oil receivers. To prepare for the 2015-2016 autumn and winter period with peak loads, the staff of the substation service will replace an oil-filled entrance bushing of 110 kV circuit breaker with a solid insulation bushing. Instead of the transformer oil, the new bushing is filled with the cheaper and more effective liquid silicone gel (unigel). The new equipment will contribute to higher reliability and lower operational costs of the power transformer. In addition, the power sector specialists have to handle a large scope of improvement work at the substation, including repair of corrosion-resistant coating, renovation of dispatch markings and safety signs, and replacement of lamps. The substation is a main source of electric power for a number of social infrastructure facilities and residents of the administrative center of the Sengileevskiy district of the region. The overhaul efforts will improve quality and reliability of power supplies to the consumers and allow to prepare the electric equipment installed at the substation for smooth and trouble-free operation during the 2015-2016 autumn and winter seasons.

 

 

 

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