A cable sealing device for a fully waterproof transformer
A cable sealing and transformer technology, which is applied to transformer/inductor parts, engine sealing, circuits, etc., can solve the problems of affecting the urban environment, increasing the volume of transformers, and increasing the difficulty of assembly, so as to achieve safe and effective operation. The effect of simplifying the structure and simple structure
Active Publication Date: 2018-04-10
STATE GRID CORP OF CHINA +2
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Problems solved by technology
[0002] At present, the urban landscape has put forward higher and higher requirements for the urban image. In order to beautify the urban environment and improve the urban visual perception, whether it is greening or night scenes, traditional box-type substations generally exist in urban municipal facilities and affect the aesthetics of the urban environment. , has become a problem in the city's "psoriasis" hardest hit area. Therefore, the transformer is buried underground, and the power distribution part is used as a semi-buried transformer to brighten the landscape. The main technical difficulty of the semi-buried transformer is that it is placed The sealing and waterproofing of the incoming and outgoing cables of the buried transformer in the pit, the current waterproof devices are equipped with lead boxes and cable connection seats, which increases the volume of the transformer, increases the cost, and increases the difficulty of assembly
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[0018] Such as Figure 1-3 As shown, the cable sealing device of a fully waterproof transformer of the present invention includes a steel frame cable 3, an external compression bolt 4, an external gasket 10, an external sealing ring 9, an internal compression bolt 6, an internal gasket 16, The inner sealing ring 15, the sealing cover, the sealing ring 12 of the cover, the housing 5, and the steel frame cable 3 enter the inside of the transformer through the hole in the middle of the external compression bolt 4, and the external compression bolt 4 is matched with the first thread of the housing 5. When When the external compression bolt 4 is screwed in, the external gasket 10 above the external sealing ring 9 is pressed downward, and the external sealing ring 9 deforms after being stressed, and the gap between the steel frame cable 3 and the housing 5 is squeezed tightly to form a second One seal, after the steel frame cable 3 passes through the first seal, remove the cable pro...
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The invention belongs to the field of fully waterproof transformers and their power supply and distribution, and specifically relates to a cable sealing device for fully waterproof transformers. The device includes steel frame cables, external compression bolts, external gaskets, external sealing rings, internal compression bolts, Internal gasket, internal sealing ring, external sealing cover, cover sealing ring, transformer housing and other parts, and the device has a double-layer sealing structure, and the space between the inner and outer sealing rings is filled with butter, so that the device has a good sealing effect , simple structure and convenient assembly can reduce the manufacturing cost on the premise of ensuring the safe and effective operation of the transformer.
Description
technical field [0001] The invention belongs to the field of fully waterproof transformers and their power supply and distribution, and relates to a waterproof assembly for incoming and outgoing cables of fully waterproof transformers, in particular to a cable sealing device for fully waterproof transformers. Background technique [0002] At present, the urban landscape has put forward higher and higher requirements for the urban image. In order to beautify the urban environment and improve the urban visual perception, whether it is greening or night scenes, traditional box-type substations generally exist in urban municipal facilities and affect the aesthetics of the urban environment. , has become a problem in the city's "psoriasis" hardest hit area. Therefore, the transformer is buried underground, and the power distribution part is used as a semi-buried transformer to brighten the landscape. The main technical difficulty of the semi-buried transformer is that it is placed...
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IPC IPC(8): H01F27/00H01F27/04F16J15/02
Inventor 刘璇万方华蒋琦玮王翔
Owner STATE GRID CORP OF CHINA