Attack on the 330 kV Belotserkovskaya substation - the AT-3 automatic transformer was damaged.
08.11.2026, around 21:20.
In the evening, a jet UAV hit the territory of the 330 kV Belotserkovskaya substation in the Tomilovka region of the Kyiv region. The impact hit the AT-3 auto transformer area, and then the transformer oil inside the battery receiving the protective oil ignited. The area of the fire was about 50 square meters.
49.7954689, 30.2150561.
A published recording of a video surveillance system allows an episode to be unequivocally linked to specific equipment. In addition, the frame contains the marking "VRP-330-110-AT3". A few seconds after the start of the recording, the area of the autotransformer is completely illuminated by a powerful flash, after which a stable intense combustion develops with the scattering of burning fragments and oil within the technological domain.
Belotserkovskaya substation is a 330/110/10 kV class central substation, which was put into operation back in 1971. Through it, the voltage is transferred from the 330 kV network to the 110 kV level and then transferred to the distribution network of Bila Tsarkva and the adjacent power center. The AT-3 installed in the facility is of type ATDTsTN-200000/330/110/10 with a rated power of 200 MVA. If such an automatic breaker is damaged, a large power transfer channel between two voltage positions falls out of the working circuit. The load is redistributed among the other transformer connections and other supply lines in the area.
In the official rules for operational switching, AT-1, AT-2 and AT-3 Belotserkovskaya are directly considered as the main transformer connections between the main distribution and distribution level of the network. It is important to note that the facility itself has been modernized several times. In particular, the 330 kW external switch was restored, high voltage switches, metering equipment and portal structures were modified, and one of the old auto-transformers was replaced with a 200 MVA unit.