The power engineers of the Pivdenna power system completed the maintenance repair of the autotransformer 4 with a total capacity of 200 MW at the 330 kV substation “Usatove”. The following substation ensures the electricity supply to Odesa and its transit to Moldova.
Given the importance of the stable electricity supply in winter period the works were performed by 4 brigades in order to fasten the process: two brigades performed the assembly works at the outdoor switchgear, the other two brigades fulfilled the installation and adjustment of the relay protection and automatic equipment in the relay premises.
The dismantling of the obsolete transformer and the complete overhaul were performed by the subcontractor. Besides, the relay specialists of the Pivdenna PS redesigned the relay protection and automatic equipment 4 AT within the shortest possible period. The fulfillment of the works allowed to adjust the autotransformer to the current substation.
The autotransformer will be commissioned right after successful testing.