CN209418395U - A kind of novel belt extinguishing arc subway disconnecting switch - Google Patents
A kind of novel belt extinguishing arc subway disconnecting switch Download PDFInfo
- Publication number
- CN209418395U CN209418395U CN201920414844.9U CN201920414844U CN209418395U CN 209418395 U CN209418395 U CN 209418395U CN 201920414844 U CN201920414844 U CN 201920414844U CN 209418395 U CN209418395 U CN 209418395U
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- extinguishing arc
- arc bar
- plug
- strip component
- servo
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- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
The utility model provides a kind of novel belt extinguishing arc subway disconnecting switch, the arc-extinction device of the switch is located at connecting terminal components, on conductive plug-in strip, the arc-extinction device of switch includes fixed extinguishing arc bar, servo-actuated extinguishing arc bar, servo-actuated extinguishing arc bar is mounted on plug-in strip component to rotate with plug-in strip component by fixed block and be moved, fixed extinguishing arc bar is mounted on connecting terminal components by fixed block and copper sheet part, when connecting terminal components and plug-in strip component are closed, being servo-actuated extinguishing arc bar and fixed extinguishing arc bar is in mutual non-contact state；In connecting terminal components and plug-in strip component opening procedure, being servo-actuated extinguishing arc bar and fixed extinguishing arc bar is in from touching to gradually completely separable state.The effect of the utility model is: preventing from netting interior generations induced electromotive force after a loss of power during switch is closed by assigning to makes still have voltage to cause to damage to plug-in strip component in net, and plug-in strip component will not be damaged and extinguishing arc bar is readily replaceable by increasing to form point discharge after arc-extinction device and discharge charge by extinguishing arc bar.
Description
Technical field
The utility model belongs to technical field of electric equipment, more particularly to a kind of novel belt extinguishing arc subway disconnecting switch.
Background technique
Subway DC isolating switch is product needed for subway, power supply of city railway system, carries the normal confession of vehicle operation
The task of power failure isolation and conversion circuit electric and when breaking down, is important the setting for guaranteeing tractive power supply system normal operation
It is standby.Gate-dividing state can be become from "on" position in subway maintenance and maintenance phase disconnecting switch, be isolated during divide-shut brake
Disconnecting link line disconnection has electric arc generation, because line-to-ground has capacitor in the case where not connecing load, direct-to-ground capacitance has electric current
It flows through.As shown in Figure 1, the connecting terminal components being set on the base, conductive plug-in strip, can be cut off during separating brake electric current because
This can generate electric arc, and disconnecting switch can generate after multiple division movement burns knife phenomenon.
Summary of the invention
The purpose of the utility model is to provide a kind of novel belt extinguishing arc subway disconnecting switch, are protected using point discharge principle
Plug-in strip component reduces maintenance cost and maintenance difficulties to occur to burn knife phenomenon.
A kind of novel belt extinguishing arc subway disconnecting switch that in order to achieve the above purposes, the technical solution adopted by the utility model is:,
It include: underframe assemblies, post insulator sub-component, connecting terminal components and plug-in strip component, the plug-in strip component is equipped with servo-actuated disappear
Arc bar, the connecting terminal components are equipped with fixed extinguishing arc bar, described servo-actuated when connecting terminal components and plug-in strip component are closed
Extinguishing arc bar and fixed extinguishing arc bar are in mutual non-contact state；It is described servo-actuated in connecting terminal components and plug-in strip component opening procedure
Extinguishing arc bar and fixed extinguishing arc bar are in from touching to gradually completely separable state.
The servo-actuated extinguishing arc bar is mounted on the inside of plug-in strip component through fixed block and is arranged with plug-in strip member parallel, described solid
Determine extinguishing arc bar to be mounted on connecting terminal components through fixed extinguishing arc bar and be vertically arranged with plug-in strip component.
The utility model has the beneficial effects that charge is discharged by extinguishing arc bar during the opening process after increasing arc-extinction device
It will not occur to burn knife phenomenon, extinguishing arc bar is only needed to change during later maintenance, reduces maintenance cost and maintenance difficulties.
Detailed description of the invention
Fig. 1 is the disconnecting switch schematic diagram for not increasing arc-extinction device of the prior art；
Fig. 2 is a kind of novel belt extinguishing arc subway disconnecting switch closing position schematic diagram of the utility model；
Fig. 3 is the novel belt extinguishing arc subway disconnecting switch division critical state schematic diagram of the utility model；
Fig. 4 is the novel belt extinguishing arc subway disconnecting switch opening position diagram of the utility model.
In figure:
1, fixed block 2, fixed extinguishing arc bar 3, fixed block
4, extinguishing arc bar 5, plug-in strip component are servo-actuated
Specific embodiment
It is illustrated in conjunction with structure of the attached drawing to the arc-extinction device of the subway dc switch of the utility model.
As shown in Figures 2 to 4, a kind of novel belt extinguishing arc subway disconnecting switch, comprising: underframe assemblies, post insulator sub-component,
Connecting terminal components and plug-in strip component are installed a servo-actuated extinguishing arc bar 4 with fixed block 3 on the plug-in strip component 5 with arc-extinction device, are being connect
Pass through the fixed extinguishing arc bar 2 of the installation of fixed block 1 one on line end sub-component.It is described when connecting terminal components and plug-in strip component are closed
Servo-actuated extinguishing arc bar and fixed extinguishing arc bar are in mutual non-contact state；It is described in connecting terminal components and plug-in strip component opening procedure
Servo-actuated extinguishing arc bar and fixed extinguishing arc bar are in from touching to gradually completely separable state.
The "on" position of the switch as shown in Fig. 2, fix that extinguishing arc bar do not contact with servo-actuated extinguishing arc bar at this time will not be split
The overall resistance of pass impacts；Disconnecting switch need to be opened by "on" position to separating brake when being overhauled or being safeguarded
State has electric arc with isolation switch line disconnection during the opening process and generates, because line-to-ground has capacitor not connecing load
In the case where direct-to-ground capacitance there is electric current to flow through, can cut off during separating brake electric current therefore can generate electric arc, when point of switch
Coincidence, which sets plug-in strip when reaching position as shown in Figure 3 and has been kept completely separate but has been servo-actuated extinguishing arc bar at this time, to be thrown away with quiet extinguishing arc bar and contacts；When opening
As shown in figure 4, servo-actuated extinguishing arc bar is kept completely separate with fixed extinguishing arc bar when the plug-in strip of pass fully opens, and the charge in switching at this time
By the form of point discharge by being servo-actuated the both ends release of extinguishing arc bar and fixed extinguishing arc bar to reach protection plug-in strip component
Purpose.
Servo-actuated extinguishing arc bar and fixed extinguishing arc bar are respectively bolted on corresponding fixed block, such as extinguishing arc after multiple division
Bar is damaged and need to only be replaced by loose bolts, and compared to replacement plug-in strip component, i.e. facilitating replacement also reduces dimension
Accomplish this.
Claims (2)
1. a kind of novel belt extinguishing arc subway disconnecting switch, comprising: underframe assemblies, post insulator sub-component, connecting terminal components and
Plug-in strip component, it is characterized in that: the plug-in strip component is equipped with servo-actuated extinguishing arc bar, the connecting terminal components are equipped with fixed extinguishing arc
Bar, when connecting terminal components and plug-in strip component are closed, the servo-actuated extinguishing arc bar and fixed extinguishing arc bar are in mutual non-contact state；?
In connecting terminal components and plug-in strip component opening procedure, the servo-actuated extinguishing arc bar and fixed extinguishing arc bar are in from touching to gradually completely
Separated position.
2. a kind of novel belt extinguishing arc subway disconnecting switch according to claim 1, it is characterized in that: the servo-actuated extinguishing arc bar
(4) inside of plug-in strip component being mounted on through fixed block and being arranged with plug-in strip member parallel, the fixed extinguishing arc bar (2) disappears through fixation
Arc bar (2) is mounted on connecting terminal components and is vertically arranged with plug-in strip component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920414844.9U CN209418395U (en) | 2019-03-29 | 2019-03-29 | A kind of novel belt extinguishing arc subway disconnecting switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920414844.9U CN209418395U (en) | 2019-03-29 | 2019-03-29 | A kind of novel belt extinguishing arc subway disconnecting switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209418395U true CN209418395U (en) | 2019-09-20 |
Family
ID=67945969
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920414844.9U Active CN209418395U (en) | 2019-03-29 | 2019-03-29 | A kind of novel belt extinguishing arc subway disconnecting switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209418395U (en) |
-
2019
- 2019-03-29 CN CN201920414844.9U patent/CN209418395U/en active Active
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