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

Flashover preventing device for circuit breaker

A circuit breaker and anti-flying technology, applied in circuit breaker parts, emergency protection devices, circuits, etc., can solve the problems of increasing production and transportation costs, reducing the flexibility of circuit breakers, and achieving the effect of reliable arc protection.

Active Publication Date: 2014-04-02
BEIJING JINGREN ELECTRICAL CO LTD
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the prior art cannot provide reliable arc protection for different installation methods of circuit breakers
Since the anti-flashover device is only composed of a protective cover, if different protective covers are made for different installation methods of the circuit breaker, it will greatly reduce the flexibility of the user to use the installation method of the circuit breaker and increase the production capacity of the enterprise. ,transportation cost

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
  • Flashover preventing device for circuit breaker
  • Flashover preventing device for circuit breaker
  • Flashover preventing device for circuit breaker

Examples

Experimental program
Comparison scheme
Effect test

Embodiment example 1

[0023] See Figure 1-Figure 3 , there are three vertical notches 11 on the protective surface of the protective cover 1, grooved guide rails 12 are vertically arranged on both sides of each vertical notch 11 on the protective surface of the protective cover 1, and the arc breaker 2 in the shape of a sheet passes through Inserting the guide rail 12 can be connected with the protective cover 1 by sliding up and down. An exhaust hole 13 is arranged on the protective cover 1 .

[0024] One end of the arc shield 2 is provided with a positioning protrusion 21 , and the positioning protrusion 21 can stay in the exhaust hole 13 of the protective cover 1 .

[0025] Wherein the guide rail mating surfaces 23 on both sides of the arc breaker 2 can run along the O-O axis (perpendicular to the paper direction) in the guide rail groove 11 of the protective cover 1, and the positioning protrusions 21 of the arc breaker 2 are limited to the rows of the protective cover 1. In the air hole 13,...

Embodiment example 2

[0027] Figure 6 and Figure 7 A schematic diagram of the positional relationship of a device for preventing flashover of a circuit breaker is shown, which includes a protective cover 1 and an arc-breaker 2 . Wherein, there is a buckle 23 on the back of the arc-breaker 2 , and there are slots 14 on both sides of the notch of the protective cover 1 . The arc-breaker and the protective cover are snap-fitted through the buckle 23 and the slot 14 . The protective cover is used alone or the protective cover is used in conjunction with the arc breaker to meet the arc protection needs of different installation methods of the circuit breaker.

[0028] In addition, buckles can also be provided on the protective cover, and slots can be correspondingly provided on the arc-breaker, and the arc-breaker and the arc-breaker can be snapped together through the slots and buckles.

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 discloses a flashover preventing device for a circuit breaker. The flashover preventing device comprises a protection cover, wherein a vertical notch is arranged on a protection surface of the protection cover; the protection cover is movably connected with a sheet flashover isolation member for shielding the notch so as to fulfill the flashover preventing function for different wiring manners of a user. According to different assembly manners of the flashover preventing member and the protection cover, the flashover preventing device can be flexibly changed according to different requirements of the user on the installation manners so as to realize two different flashover preventing areas of the flashover preventing device for the circuit breaker and reliably prevent flashovers. The flashover preventing device has the characteristics of saving production and manufacturing cost and being simple and convenient to use.

Description

technical field [0001] The invention relates to a device for preventing flashover of a circuit breaker, which belongs to the field of low-voltage electrical appliances. Background technique [0002] A circuit breaker is a switching device used in power distribution networks to distribute electric energy and protect lines and power supply equipment. When a line fault meets the protection conditions set by the circuit breaker, the circuit breaker is disconnected. The breaking of the circuit breaker depends on the separation of the moving contact and the static contact. When the moving contact and the static contact are separated, an arc will be generated. Only when the arc is extinguished can the real breaking be achieved. The arc extinguishing mainly depends on the arc extinguishing chamber. Under the action of the arc extinguishing grid, the arc is introduced into the arc extinguishing chamber, and the arc is extinguished by using the near pole voltage drop. With the develo...

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): H01H71/00H01H73/18
Inventor 南寅王洪刚李金英齐坤
Owner BEIJING JINGREN ELECTRICAL CO LTD