FIELD: electrified railways; DC and AC traction stations. SUBSTANCE: traction substation is built up of separate prefabricated functional modules accommodating switchgear and various pieces of equipment also wired, adjusted, and tested by the manufacturer; in-situ installation of substation boils down to joining of modules and connection of power and secondary circuits by means of unified connecting assemblies pre-installed by manufacturer. Modules are provided with special supporting and moving mechanisms enabling their displacement over rails or channel bars. EFFECT: facilitated installation of substation, provision for maintaining it serviceable under all environmental conditions.
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