Unlock instant, AI-driven research and patent intelligence for your innovation.

A busbar cross structure of a DC circuit breaker

A technology of DC circuit breaker and busbar, which is applied in busbar/line layout, substation/switch layout details, electrical components, etc. simple effect

Active Publication Date: 2021-03-02
GUANGDONG POWER GRID CO LTD +1
View PDF9 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the shortcomings of large number of cabinets and complex structure when installing DC circuit breakers in the existing flexible DC distribution network project, and provide a busbar cross structure for DC circuit breakers

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A busbar cross structure of a DC circuit breaker
  • A busbar cross structure of a DC circuit breaker
  • A busbar cross structure of a DC circuit breaker

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Such as Figure 1 to Figure 2 Shown is the first embodiment of the busbar cross structure of a DC circuit breaker of the present invention. A busbar cross structure of a DC circuit breaker, comprising a first busbar 2, a second busbar 1, an isolation grounding switch 3, a high-speed switch 4, a first wall bushing 7, a second wall bushing 6 and a second wall bushing Three through-wall bushings 5, the second busbar 1 is bent and passes through the second through-wall bushing 6, the first busbar 2 is sequentially connected to the isolation grounding switch 3 and the high-speed switch 4, and passes through the third through-wall bushing in turn Wall sleeve 5 and first wall sleeve 7.

[0020] Wherein, the first wall penetration sleeve 7 is parallel to the second wall penetration sleeve 6 , and a mounting flange 8 is provided outside the first wall penetration sleeve 7 and the second wall penetration sleeve 6 . One end of the first busbar 2 passing through the first wall bu...

Embodiment 2

[0024] This embodiment is similar to Embodiment 1, the difference is that in this embodiment, the bus bar cross structure of two DC circuit breakers is connected front and back, and in the bus bar cross structure of the first DC circuit breaker, the positive pole is connected to The first busbar 2, the negative pole is connected to the second busbar 1, the positive pole is connected to the isolation grounding switch 3 and the high-speed switch 4 of the busbar cross structure of the first DC circuit breaker, and then passes through the third busbar The wall bushing 5 and the first wall bushing 7, the negative pole is connected to the second busbar 1, and flows out of the second wall bushing 6 after being bent, and the positive and negative poles of the exchanged positions flow into the second DC circuit breaker Bus bar cross structure, the negative pole is connected to the first bus bar 2 of the bus bar cross structure of the second DC circuit breaker, and the negative pole is c...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a busbar cross structure of a direct current circuit breaker. A busbar cross structure of a DC circuit breaker, including a first busbar, a second busbar, an isolation grounding switch, a high-speed switch, a first wall bushing, a second wall bushing and a third wall bushing tube, the second busbar is bent and passes through the second wall bushing, the first busbar is connected to the isolation grounding switch and the high-speed switch in turn, and then passes through the third wall bushing in sequence and the first wall bushing. The present invention can enable the two DC circuit breakers installed on the positive and negative poles to be directly connected back and forth in the flexible DC distribution network project, without requiring additional cabinets or devices to exchange the positive and negative poles, so that the entire flexible DC distribution network The network structure is simplified.

Description

technical field [0001] The present invention relates to the technical field of electric equipment, and more specifically, relates to a bus bar crossing structure of a DC circuit breaker. Background technique [0002] With the rapid development of distributed power sources and different loads connected to the grid, multi-terminal flexible DC power transmission and distribution technology has been applied. At present, in flexible DC The key equipment connected to the network of two converter stations, when a partial fault occurs in the power grid, it plays the role of clearing and isolating the fault. The application of the DC circuit breaker can improve the stability and flexibility of the DC power grid and improve the reliability of the power supply. It can effectively avoid the problem of outage of the whole network caused by partial failure of the power grid. However, due to the presence of positive and negative poles in the DC circuit, when installing a DC circuit breake...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H02B1/20
CPCH02B1/20H02B1/207
Inventor 谭喆刘尧肖立军杨昆廖珩李文晖甘德树董华梁陈锐岑义顺
Owner GUANGDONG POWER GRID CO LTD