Current transformer

Abstract

The invention provides a current transformer comprising a first sub current transformer and a second sub current transformer which are in eudipleural distribution as well as an incoming terminal assembly and an outgoing terminal assembly, wherein the first sub current transformer comprises a first capacitor assembly, a first power module assembly, a first contactor fuse assembly, a first reactor assembly and a first sensor assembly which are modularly designed and arranged on the same plane and a first control unit assembly arranged above the first power module assembly; the second sub current transformer comprises a second capacitor assembly, a second power module assembly, a second contactor fuse assembly, a second reactor assembly and a second sensor assembly which are modularly designed and arranged on the same plane and a second control unit assembly arranged above the second power module assembly. The embodiment realizes modular design layout of the current transformer and reduces the external dimensions of the cabinet of the current transformer.

Description

technical field [0001] Embodiments of the present invention relate to the field of electrical technology, and in particular to a converter. Background technique [0002] With the continuous updating of light rail vehicle design, as a main part of light rail vehicle design, the requirements for traction converter are getting higher and higher. According to the requirements of the overall design of the light rail vehicle body, the traction converter is installed on the roof of the light rail vehicle, so the height of the converter is limited, and the internal structure is basically required to be laid out in the horizontal plane, so that the length and width The restrictions are also very strict, and at the same time, the requirements for high-power electrical performance and the like must be guaranteed. Therefore, great challenges are brought to the design of the converter. [0003] Although the current converters in the prior art can guarantee the basic electrical performa...

AI Technical Summary

Problems solved by technology

[0003] Although the current converters in the prior art can guarantee the basic electrical performance, their external dimensions are large (2044mm*1554mm*460mm), resulting in an increase in the overall weight of the converter, and the layout of the cabinet is relatively messy, making the converter The electromagnetic compatibility of the device is not good, and failures often occur due to interference, etc.

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