High-voltage frequency converter with outdoor cable channel

Abstract

The invention relates to a high-voltage frequency converter with an outdoor cable channel. The high-voltage frequency converter comprises an oil-immersed transformer and a power unit cabinet, wherein the power unit cabinet comprises an oscillator and a modulator. The high-voltage frequency converter is characterized by further comprising the outdoor cable channel. The oil-immersed transformer and the power unit cabinet are separated through a partition wall and are located in two independent spaces respectively, the space where the oil-immersed transformer is located is outdoors, the space where the power unit cabinet is located is a power unit cabinet chamber, and the outdoor cable channel penetrates through the partition wall and enables the oil-immersed transformer and the power unit cabinet to be communicated. The oil-immersed transformer is placed outdoors, ventilation design is not required, heating and ventilation design difficulty is reduced, the independent outdoor cable channel is arranged to be used for placing cables, a cable fixing clamp is arranged in the outdoor cable channel, the cables are shaped like a Chinese character pin, a certain intervals are reserved between the cables, and cable heat dissipation efficiency and cable current-carrying capability are effectively improved.

Description

technical field [0001] The invention relates to a high-voltage frequency converter, in particular discloses a high-voltage frequency converter with an outdoor cable channel, belonging to the field of high-voltage frequency converters. Background technique [0002] At present, the cable passages of traditional high-voltage inverters are basically arranged indoors, using dry-type transformers and the cabinet space of the power unit cabinet itself. There is no dedicated cable passage, and the dry-type transformer and power unit cabinets are not completely separated in structure. ;There are the following disadvantages: the connection cables between the dry-type transformer and the power unit cabinet are crowded, and the cooling effect is not ideal. Due to the limitation of the size of the dry-type transformer and the power unit cabinet itself, the cables from the same phase unit to the dry-type transformer winding are basically Overlapped together, the heat dissipation effect of...

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Problems solved by technology

[0003] The purpose of the present invention is to solve the problem of cable layout in the actual application of the cable channel of the high-voltage frequency converter in the prior art, which causes serious unbalanced carrying capacity, which causes the increase of cable cost; the disadvantages of complex indoor ventilation design and high cost, etc. , to provide a high-voltage frequency converter with an outdoor cable channel that is simple in design and strong in practicability, can solve problems such as severe imbalance of ampacity caused by cable layout, complex indoor ventilation design, etc., and can reduce system costs

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