A large 220 kV substation Kara-Balta, which energizes Panfilov,
The substation was put into operation in 1976 with a single autotransformer. Under ADB project, morally and physically obsolete oil switches were replaced with modern ones. New sealed voltage transformers and current transformers were installed.
Currently, a lightning protection wire with fiber-optic cable was laid from the substation Kara-Balta to Glavnaya substation and further to Chuyskaya substation with a total length of