The HVDC Volgograd–Donbass is a 475 kilometres (295 mi) long bipolar ±400 kV high voltage direct current powerline used for transmitting electric power from Volga Hydroelectric Station at Volgograd in Russia to Donbas in eastern Ukraine and vice versa.

There are concerns over potential mercury contamination in the area near the Ukrainian terminal due to the risk of it being destroyed in the Ukrainian-Russian War.

[4] The valves used oil-cooled cathode tanks and natural air-cooled anode insulators, with internal grading electrodes inside the porcelain.

The converter transformers of Volzhskaya converter station are fed directly from the generators of the Volga Hydroelectric Station with 14 kV three-phase AC, whereby two parallel switched generators feed their power into one transformer.

Unusually, the DC line crosses the whole AC switchyard of the substation before it enters the valve hall situated at the southern side of the station.

The Mikhailovskaya converter station has three harmonic filters, each with a reactive power of 132 MVA, which are situated 100 metres (330 ft) northerly of the AC switchyard.

It may carry equipment for extracting PLC-signals from the line, which may be used by Solinky 110 kV substation approximately 1 kilometres northward.

North of Petrivka the line runs eastwards and then after Nyznoteple southwards in order not to cross a populated valley.

The line runs in Russia past Krasnovka and Novotalovka until Taradinka eastwards, where it turns again toward northeast.

In its further track, it passes between Krinychnyy and Melnichnny and runs past Krasnoschekov and Krasnoyarovka through large fields to Varlamovka.

In opposite to the main line, all strainers are free-standing lattice towers with a single crossbar, while the suspension towers of the electrode line are usually concrete poles with a single crossbar made of steel.

It is connected with Mikhailovskaya converter station by a 32 kilometre long overhead line, which consists of two parallelized 2450 mm2 ACSR conductors.

It is connected with it by a 24 kilometre long overhead line consisting of two parallelized 2450 mm2 ACSR conductors.

Tower at this location, 48°49′51″N 44°39′14″E / 48.830929°N 44.653909°E / 48.830929; 44.653909, completely removed between Oct 2021 and Jun 2022 on Google Earth images.