Outdoor 27.5 kV fixedly-sealed type vacuum modularized electric appliance for electrified railway
An electrified railway and modularization technology, applied in the direction of electrical components, high-voltage air circuit breakers, circuits, etc., can solve the problems of large area of switchgear, large impact of external environment, poor product reliability, etc., to reduce the number of insulating pillars, Reduced footprint and the effect of reducing insulating struts
Active Publication Date: 2009-12-16
NINGBO YONGXIN ORIENTAL ELECTRIC
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[0003] In order to overcome the shortcomings of the existing switchgear that occupy a large area, high investment cost, low reliability, troublesome maintenance, great influence from the external environment, and poor product reliability, the present invent
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[0029] The present invention will be further described below in conjunction with the accompanying drawings.
[0030] refer to Figure 1 ~ Figure 4 , an outdoor 27.5kV solid-sealed vacuum modular electrical appliance for electrified railways, comprising a bracket 9, a single-pole solid-sealed vacuum circuit breaker 4 mounted on the bracket 9, a first isolating switch 3, a second isolating switch 26, a current mutual inductance device 5, the first solid-sealed post transformer 2, the second solid-sealed post transformer 25, the incoming connection terminal 24, the outgoing connection terminal 1 and the integrated automation control box 8, and the single-pole fixed-sealed circuit breaker 4 is installed in In the middle of the bracket 9, the incoming connection terminal 24 and the outgoing connection terminal 1 are respectively located on both sides of the support 9; the outgoing connection terminal 1 is located on the first solid-sealed pillar transformer 2, and the first isolati...
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The invention relates to an outdoor 27.5 kV fixedly-sealed type vacuum modularized electric appliance for an electrified railway, which comprises a supporting frame and a monopole fixedly-sealed type vacuum circuit breaker arranged on the supporting frame, wherein the monopole fixedly-sealed type vacuum circuit breaker is arranged in the middle part of the supporting frame, and an incoming line connecting terminal and an outgoing line connecting terminal are positioned on two sides of the supporting frame respectively; the outgoing line connecting terminal is positioned on a first fixedly-sealed supporting column type transformer, a moving contact of a first isolating switch is positioned on a supporting seat of the first fixedly-sealed supporting column type transformer, a current transformer is arranged between the first isolating switch and the circuit breaker, a fixed contact of the first isolating switch is positioned on the current transformer, and the current transformer is connected with the monopole fixedly-sealed type vacuum circuit breaker; and the incoming line connecting terminal is positioned on a second fixedly-sealed supporting column type transformer, a moving contact of a second isolating switch is positioned on the second fixedly-sealed supporting column type transformer, and a fixed contact of the second isolating switch is positioned on a fixedly-sealed terminal of the circuit breaker. The outdoor 27.5 kV fixedly-sealed type vacuum modularized electric appliance for the electrified railway effectively reduces the floor area and the investment cost, and has good reliability, convenient maintenance and good product reliability.
Description
technical field [0001] The invention relates to a special switchgear for electrified railway. Background technique [0002] At present, the switchgear of electrified railway traction station, divisional station and switching station are circuit breakers, voltage transformers, current transformers, isolating switches and other main equipment, which are arranged indoors in the form of unit intervals or switch cabinets, all of which need to be equipped with production houses. In order to meet the product requirements. Although the reliability of power supply is high, land acquisition and housing production require more investment. Its disadvantages are that it occupies a large area, high investment cost, low reliability, troublesome maintenance, great influence from the external environment, and poor product reliability. Contents of the invention [0003] In order to overcome the shortcomings of the existing switchgear, such as large floor area, high investment cost, low re...
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Login to view more IPC IPC(8): H02B1/04H02B5/02H01H33/66H01H33/664
Inventor 沈金祥袁进军潘海芳闻武
Owner NINGBO YONGXIN ORIENTAL ELECTRIC
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