118KV power supply transformer

Abstract

The invention relates to the technical field of transformers and particularly discloses a 118KV power supply transformer. The power supply transformer comprises a silicone rubber casing pipe, a top plate, a bottom plate, a transformer body and a primary lead tube. The bottom plate is fixed to the bottom of the silicone rubber casing pipe, the top plate is fixed to the top of the silicone rubber casing pipe, the transformer body is arranged in the silicone rubber casing pipe, and the bottom of the transformer body is fixed to the bottom plate; the top of the primary lead tube is fixed to the top plate, and the bottom of the primary lead tube is connected with the transformer body; the transformer body includes high-voltage coils, low-voltage coils, B-shaped iron cores and arc low-voltage shielding covers, the B-shaped iron cores are fixed to the bottom plate, the low-voltage coils are arranged on the B-shaped iron cores, the tops of the high-voltage coils are connected with the bottom of the primary lead tube, and the arc low-voltage shielding covers are arranged around the inner sides of the B-shaped iron cores. The power supply transformer is compact in structure and reasonable inarrangement. The transformer body is directly disposed in the silicone rubber casing pipe, so that the size of the power supply transformer is reduced, internal and external electric fields of the transformer are improved, distribution of the electric fields is more uniform, and the stability of the power supply transformer is ensured.

Description

Technical field [0001] The invention relates to the technical field of transformers, in particular to a 118KV power supply transformer. Background technique [0002] The world's power transmission system is moving towards a more energy-saving and environmentally friendly DC transmission. For this reason, scientists are developing corresponding major power safety control equipment DC circuit breakers, and DC circuit breakers need a device that can solve energy supply problems. [0003] The energy supply transformers in the prior art often use the body of the transformer to be arranged in the housing, and then the silicone rubber bushing is connected to the body housing. This structure leads to a larger volume of the transformer, which is difficult when the installation space is limited. To meet the requirements, but by reducing the insulation distance, the overall stability of the transformer cannot be guaranteed. Therefore, a new structure needs to be designed to reduce the overall...

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Problems solved by technology

[0003] The energy supply transformer in the prior art often adopts the method of setting the transformer body in the casing, and then connecting the silicon rubber bushing to the casing of the body. Such a structure leads to a large volume of the transformer, and it is difficult to To meet the requirements, but by reducing the insulation distance, the overall stability of the transformer cannot be guaranteed, so a new structure needs to be designed to reduce the overall volume of the transformer while ensuring the overall performance of the transformer

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