CN201804780U - Arc striking device for high-voltage grounding switch - Google Patents
Arc striking device for high-voltage grounding switch Download PDFInfo
- Publication number
- CN201804780U CN201804780U CN2010205568992U CN201020556899U CN201804780U CN 201804780 U CN201804780 U CN 201804780U CN 2010205568992 U CN2010205568992 U CN 2010205568992U CN 201020556899 U CN201020556899 U CN 201020556899U CN 201804780 U CN201804780 U CN 201804780U
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- arc striking
- contact
- contact terminal
- switch
- plate
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Abstract
An arc striking device for a high-voltage grounding switch comprises a contact finger component and a contact terminal. An arc striking plate is arranged on the contact finger component, a fixing plate is mounted below the contact terminal, a tension spring is arranged on the fixing plate, one end of the tension spring is fixed onto the fixing plate, the other end of the tension spring is connected with an arc striking contact terminal, and the arc striking contact terminal is mounted on the fixing plate by the aid of a rotary shaft. In the arc striking device adopting the technical scheme, the arc striking contact terminal firstly contacts with the arc striking plate when the switch is closed on, a contact finger only contacts with the contact terminal after an arc striking process is completed, and the contact terminal is inserted into the contact finger under the action of closing force, thereby completing the closing process. When the switch is opened, the contact finger is firstly separated from the contact terminal under the action of opening force, the arc striking contact terminal presses the arc striking plate by the aid of tensile force of the tension spring, and the arc striking process is completed when the arc striking terminal is separated from the arc striking plate. The high-voltage grounding switch strikes arcs by the aid of the arc striking contact terminal, the arc striking contact terminal and the arc striking plate are arranged at the position eroded by current when the switch is opened or closed, and accordingly the arc striking device can protect the contact terminal and the contact finger.
Description
Technical field
The utility model relates to a kind of high voltage ground switch of electric power power transmission and transformation system, particularly relates to a kind of folding arc-initiating device of high-voltage earthing.
Background technology
High voltage ground switch is an electric power power transmission and transformation system circuit deciliter device commonly used, and switch is wanted deciliter em induced current and static induced current in the specific occasion.At present, high voltage ground switch, particularly JW type isolating switch are that fingertip directly enters between contact the fingertip spring compression mostly both at home and abroad.Switch is by contact and fingertip striking.The contact site of can ablating during the switch folding, long-term ablation will influence the electric conductivity of product, cause the conducting position loose contact easily, influence the performance and the life-span of product.
Summary of the invention
The utility model is to provide a kind of can prevent fingertip and the ablated high voltage ground switch folding arc-initiating device of contact.
For achieving the above object, the utility model is by the following technical solutions:
The utility model comprises fingertip assembly and contact, and described fingertip assembly is provided with run-on tab; Fixed head is installed below described contact, and fixed head is provided with extension spring, and extension spring one end is fixed on the fixed head, and the other end of extension spring connects the striking contact, and the striking contact is installed on the fixed head by rotating shaft.
On described fixed head, be equiped with spacer pin.
Described striking contact and run-on tab material are tungsten-copper alloy.
Adopt the utility model of technique scheme, when switch closed a floodgate, the striking contact at first contact with run-on tab, finish arc process after, fingertip ability contacts with contact, contact insertion fingertip is finished combined floodgate under the effect of switching force; When the switch separating brake, fingertip breaks away from earlier contact under the effect of separating brake power, and the striking contact presses run-on tab by under the spring tension effect, finishes arc process when striking contact and run-on tab separate.High voltage ground switch is by the striking of striking contact, and the position that switch divides fashionable electric current to ablate is striking contact and run-on tab, thereby can protect contact and fingertip.
Description of drawings
To be the high voltage ground switch that has the utility model arc-initiating device be in schematic diagram when closing a floodgate the separating brake transition state at switch to Fig. 1.
Fig. 2 is the schematic diagram when switch is in "on" position embodiment illustrated in fig. 1.
Embodiment
As shown in Figure 1 and Figure 2, the utility model comprises fingertip assembly 1 and contact 2, and fingertip assembly 1 is provided with run-on tab 5; Fixed head 6 is installed below contact 2, and fixed head 6 is provided with extension spring 7, and extension spring 7 one ends are fixed on the fixed head 6, and the other end of extension spring 7 connects striking contact 3, and striking contact 3 is installed on the fixed head 6 by rotating shaft 8.
Spacing for carrying out better, on fixed head 6, be equiped with spacer pin 9.In addition, striking contact 3 and run-on tab 5 materials are that tungsten-copper alloy is a preferred forms.
Operation principle of the present utility model is: when switch closes a floodgate, striking contact 3 at first contacts with run-on tab 5, under the drive of switching force, fingertip assembly 1 continues to contact 2 side shiftings, striking contact 3 moves under the pressure of run-on tab 5 backward, extension spring 7 inserts fingertip assembly 1 fully up to contact 2 simultaneously, and making process is finished.When separating brake, fingertip assembly 1 is under the effect of separating brake power, break away from contact 2, striking contact 3 is under the pulling force of extension spring 7, contact with run-on tab 5 always, stop striking contact 3 up to spacer pin 9 and continue motion, last striking contact 3 and run-on tab 5 separate, and high voltage ground switch is by striking contact 3 and run-on tab 5 strikings.The position that switch divides fashionable electric current to ablate is striking contact 3 and run-on tab 5, thereby can protect contact 2 and fingertip assembly 1.
Claims (3)
1. high voltage ground switch arc-initiating device, it comprises fingertip assembly (1) and contact (2), it is characterized in that: described fingertip assembly (1) is provided with run-on tab (5); In the below of described contact (2) fixed head (6) is installed, fixed head (6) is provided with extension spring (7), extension spring (7) one ends are fixed on the fixed head (6), and the other end of extension spring (7) connects striking contact (3), and striking contact (3) is installed on the fixed head (6) by rotating shaft (8).
2. high voltage ground switch arc-initiating device according to claim 1 is characterized in that: be equiped with spacer pin (9) on described fixed head (6).
3. high voltage ground switch arc-initiating device according to claim 1 is characterized in that: described striking contact (3) and run-on tab (5) material are tungsten-copper alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205568992U CN201804780U (en) | 2010-10-10 | 2010-10-10 | Arc striking device for high-voltage grounding switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205568992U CN201804780U (en) | 2010-10-10 | 2010-10-10 | Arc striking device for high-voltage grounding switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201804780U true CN201804780U (en) | 2011-04-20 |
Family
ID=43874284
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205568992U Expired - Fee Related CN201804780U (en) | 2010-10-10 | 2010-10-10 | Arc striking device for high-voltage grounding switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201804780U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015197785A1 (en) | 2014-06-26 | 2015-12-30 | Siemens Aktiengesellschaft | Static arc-striking contact assembly and grounding switch thereof |
| CN108766827A (en) * | 2018-05-02 | 2018-11-06 | 河南平高电气股份有限公司 | Direct-current isolating switch and its harmonic current breaking device |
-
2010
- 2010-10-10 CN CN2010205568992U patent/CN201804780U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015197785A1 (en) | 2014-06-26 | 2015-12-30 | Siemens Aktiengesellschaft | Static arc-striking contact assembly and grounding switch thereof |
| CN108766827A (en) * | 2018-05-02 | 2018-11-06 | 河南平高电气股份有限公司 | Direct-current isolating switch and its harmonic current breaking device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110420 Termination date: 20151010 |
|
| EXPY | Termination of patent right or utility model |