MODULE OF METALCLAD MODULAR SUBSTATION Russian patent published in 1998 - IPC

FIELD: power supply systems including those feeding ac and DC electrified railways and nontractive loads. SUBSTANCE: prefabricated module accommodating power and auxiliary pieces of equipment has three-layer shielding structure. Its external surface is made of corrosion-resistant material and internal one, of decorative material. Both surfaces of shielding structure are joined together by means of stiff heat-insulating ties. Space between them is filled with heat-insulating material, and all openings for letting external pipelines in and out are hermetically sealed. Module is mounted on rail, channel, or I- channel base and displaced over it by means of supporting and adjusting devices installed on its bottom surface and provided with supporting castors, vertical displacement controls and transverse displacement limiters that function to hold module in position on its base. EFFECT: improved reliability, facilitated maintenance and installation. 3 cl, 3 dwg