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Rosseti Volga

September 4, 2014

Specialists of Ulyanovsk Distribution Grids carry out repair activities at Terenga substation

Extensive repairs at Terenga substation are carried out in accordance with the approved schedule as part of the Repair Program-2014 of Ulyanovsk Distribution Grids, a branch of IDGC of Volga, JSC (a subsidiary of Rosseti Group of Companies). Works completed at 110 kV outdoor switchgear include capital repair of isolating and short-circuiting switches, 110 and 35 kV line-isolating and bus isolating switches and 110 kV sectionalizing circuit breaker. Specialists completed capital repairs at 10 and 35 kV bus sections.
Over 30 pieces of power equipment underwent repairs, including five 35 kV and seventeen 10 kV oil circuit breakers. Routine repairs completed at power transformers T-1 and T-2 included painting and replacement of cooling fans, replacement of desiccant (silica gel) packs in dehydrating filter breathers and inspection of oil receivers. Other activities performed at Terenga substation according to the Repair Program include replacement of two high-voltage bushings of S-35 type oil circuit breaker, 35 kV voltage transformer, reinforced-concrete panels of cable ducts, porcelain caps of 110 kV sectionalizing circuit breaker (type -110). To improve performance of the lightning protection equipment, obsolete discharges were replaced for modern overvoltage suppressors. Corrosion-resistant coating and nameplates on electrical machinery at the substation were renovated.

 

 

 

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