Terminal strip for electric locomotive hauling transformer

Abstract

The invention relates to a terminal strip for an electric locomotive hauling transformer, which consists of a connecting terminal, an air side insulated post, a mounting flange, a seal groove and an oil middle side insulated post; the air side insulated post, the mounting flange and the oil middle side insulated post have an integral structure formed by vacuum pouring of epoxy resin; the contacting surface of the connecting terminal and the epoxy resin is circularly provided with buffer circles; the air side insulated post and the oil middle side insulated post have a cone frustum shape, and joints of the roots of the two and the flange are provided with fillets; two ends of the connecting terminal are platy and the middle of the connecting terminal has a cylindrical structure; and the buffer circles are 4 to 6, made of elastic silicon rubber, and are circularly arranged on the contacting surface of the middle cylinder of the connecting terminal and the epoxy resin. The terminal striphas reliable insulation, strong mechanical strength, convenient operation, flexible installation, reliable seal, and long service life.

Description

technical field [0001] The patent of the present invention relates to insulation and sealing equipment for traction transformers of electric locomotives, in particular to an outlet terminal block of traction transformers for electric locomotives. Background technique [0002] The traction transformer of electric locomotive usually adopts the form of oil insulation, and the traction transformer terminal block is the main insulation and sealing element in the traction transformer, and it is also the connecting element connecting the inside and outside of the traction transformer. The quality of the traction transformer terminal block will directly affect the quality of the traction transformer. Quality, if the traction transformer leaks oil and air due to terminal block and the insulation is damaged and the insulation drops, it will cause the entire electric locomotive to fail to operate normally, endangering equipment and personal safety. At present, the terminal block form o...

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Problems solved by technology

[0003] In view of the existing problems in the split terminal block of electric locomotive traction transformer, such as easy oil leakage, poor insulation degree, inconvenient installation and maintenance, and low service life, the technical problem to be solved by the present invention is to provide a reliable insulation, mechanical strength Terminal block for electric locomotive traction transformer with high height, convenient operation, flexible installation, good sealing performance and long service life

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