Branch of OAO «FSK OF ECC» – MES of Siberia – replaced the transformer of tension on substation 220 kv «Abakan-rayonnaya» (Khakasiya). Reliability of work of the system of account of electric power and devices of relay defence and automation rose as a result. In all on substation 220 kv «Abakan-rayonnaya» six transformers of tension are set. During works replacement of the oldest asm, producing the operating resource was produced. The transformer of tension is intended for the feed of electric
measurings devices, devices of relay defence and signaling in settings of alternating current. For a certificate. Substation 220 kv «Abakan-rayonnaya» by the set power 400 MVA put into an operation in 1964. It is key substation, providing electric power
city Abakan, and also city Chernogorsk and adjoining to them districts. In the number of large users of substation is the Montenegrin coal cut. In addition, from substation the reserve feed of the system of own needs of substation is carried out 500 kv «Abakanskaya».