CN201091028Y - Self force type finger sensing structure of outdoor high-voltage electric appliance ground switch - Google Patents
Self force type finger sensing structure of outdoor high-voltage electric appliance ground switch Download PDFInfo
- Publication number
- CN201091028Y CN201091028Y CNU2007200280436U CN200720028043U CN201091028Y CN 201091028 Y CN201091028 Y CN 201091028Y CN U2007200280436 U CNU2007200280436 U CN U2007200280436U CN 200720028043 U CN200720028043 U CN 200720028043U CN 201091028 Y CN201091028 Y CN 201091028Y
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- contact
- fixed
- self
- earthed switch
- outdoor high
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Abstract
The utility model relates to a self-operated sensing finger structure used for an outdoor three-phase AC high-voltage isolating switch, a bus grounding switch and the grounding switch of high-voltage appliance such as an open combined appliance in a 110 kV - 40.5 kV power supply system. The utility model comprising a dynamic contact and a static contact of a ground switch is characterized in that the dynamic contact has a contact base (2) fixed on a conducting rod (1) and at the end connected with the static contact; parallel sheet contacts (3) are respectively fixed at both sides of the contact base (2); the static contact has a contact plate (4) which can be tightly embedded into the two parallel sheet contacts (3) of the dynamic contact and be fixed on a wire holder on top of a supporting insulator. When the upper part of the dynamic contact is closed with the static contact, the sheet contacts (3) can be embedded tightly with the contact plate (4) by the elasticity of the material of the sheet contacts. The utility model has discharge current capacity and high capacity in bearing short-circuit current and has the advantages of simple and compact structure, reliable operation and convenient maintenance.
Description
One, technical field:
The utility model relates to a kind of novel fingertip structure of outdoor high-voltage electrical equipment earthed switch, earthy self-operated type fingertip structure in the high-tension electricity devices such as outdoor three-phase alternating current high voltage isolator, busbar grounding switch, open combined electri cappliance in specifically a kind of 110kV-40.5kV power supply system.
Two, background technology:
In the last few years, along with China's rapid development of economy, infrastructure construction was advanced by leaps and bounds especially, and the operational reliability of the various high-voltage electrical equipments of electric power system is had higher requirement; And isolating switch is in the various device of electric power system, and its operational environment is worst, is exposed to fully in the atmospheric environment, is bearing the erosion of acid rain, salt fog, dust storm.Since in the existing 110kV-40.5kV power supply system in the high-tension electricity devices such as outdoor three-phase alternating current high voltage isolator, busbar grounding switch, open combined electri cappliance earthed switch exist deficiency in the design, cause earthed switch reliability, bear the short circuit current ability; Often need to safeguard; Can not reach the isolating switch improvement transformation requirement that State Grid Corporation of China proposes.
Three, summary of the invention:
The purpose of this utility model is that the earthed switch for high-tension electricity devices such as outdoor three-phase alternating current high voltage isolator, busbar grounding switch, open combined electri cappliance in the 110kV-40.5kV power supply system provides a kind of self-operated type fingertip structure, its through-current capability, bears short circuit current ability height; Simple and compact for structure, use reliably, be convenient to safeguard.
For achieving the above object, the technical scheme that the utility model is taked is: on the basis of the earthed switch of former High-Voltage Electrical Appliances, to first-class improvement of moving contact, stationary contact of earthed switch.Be moving contact, the fixed contact that the fingertip structure of earthed switch includes earthed switch.Described moving contact is that an end that is connected with fixed contact on conducting rod is fixed with touch base, and the both sides of touch base are fixed with the contact that is parallel to each other respectively; Fixed contact is the touch panel that is fixed with on the junction block of post insulator upper end between two contacts that are parallel to each other that can tightly embed moving contact.
Ground cutter operating mechanism in cutter powder operation device operatively, by ground cutter vertical links, space four-links, make on the moving contact of earthed switch and put, make the touch panel of two contacts that are parallel to each other and fixed contact chimeric, realize the connection of moving contact and fixed contact combined floodgate, the bottom then separating brake cut-offs.
In order to improve conductive capability, the contact of moving contact is copper coin cold moudling, curved.The welding that is fixed as of conducting rod and touch base is fixed.
Because the contact of earthed switch moving contact adopts copper coin cold moudling, curved, has better elastic and electric conductivity, when contact and touch panel combined floodgate, has clamping force preferably, the electric conductivity after having guaranteed to close a floodgate.During combined floodgate, the clamping of contact and touch panel is to clamp by the elastic force elastic force of contact self, still be referred to as self-operated type.Therefore, the utlity model has through-current capability, bear short circuit current ability height; Simple and compact for structure, use reliably, be convenient to characteristics such as maintenance.
Four, description of drawings
Accompanying drawing is a schematic diagram of the present utility model.
Five, embodiment
Accompanying drawing is embodiment of the present utility model, and the fingertip structure of described earthed switch includes moving contact, the fixed contact of earthed switch.Moving contact is that an end that is connected with fixed contact on conducting rod 1 is fixed with touch base 2, and the both sides of touch base 2 are fixed with the contact 3 that is parallel to each other respectively; Contact 3 is copper coin cold moudling, curved.Conducting rod 1 is fixed with the welding that is fixed as of touch base 2.Fixed contact is the touch panel 4 that is fixed with on the junction block of post insulator upper end between two contacts that are parallel to each other that can tightly embed moving contact.The touch panel 4 of present embodiment is fixedly connected with junction block by curved 5.
Ground cutter operating mechanism in cutter powder operation device operatively, by ground cutter vertical links, space four-links, make on the moving contact of earthed switch and put, make the touch panel 4 chimeric (as shown in drawings) of two contacts that are parallel to each other 3 and fixed contact, realize the connection of moving contact and fixed contact combined floodgate, the bottom then separating brake cut-offs.
Because the contact 3 of earthed switch moving contact adopts copper coin cold moudling, curved, has better elastic and electric conductivity, when contact 3 closes a floodgate with touch panel 4, has clamping force preferably, the electric conductivity after having guaranteed to close a floodgate.Therefore, the utlity model has through-current capability, bear short circuit current ability height; Simple and compact for structure, use reliably, be convenient to characteristics such as maintenance.
Claims (3)
1. the self-operated type fingertip structure of an outdoor high-voltage electrical equipment earthed switch, the moving contact, the fixed contact that include earthed switch, it is characterized in that described moving contact is to go up an end that is connected with fixed contact at conducting rod (1) to be fixed with touch base (2), the both sides of touch base (2) are fixed with the contact (3) that is parallel to each other respectively; Fixed contact is the touch panel (4) that is fixed with on the junction block of post insulator upper end between two contacts that are parallel to each other (3) that can tightly embed moving contact.
2. the self-operated type fingertip structure of outdoor high-voltage electrical equipment earthed switch according to claim 1, the contact (3) that it is characterized in that moving contact is copper coin cold moudling, curved.
3. the self-operated type fingertip structure of outdoor high-voltage electrical equipment earthed switch according to claim 1 is characterized in that the welding that is fixed as of conducting rod (1) and touch base (2) is fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200280436U CN201091028Y (en) | 2007-09-14 | 2007-09-14 | Self force type finger sensing structure of outdoor high-voltage electric appliance ground switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200280436U CN201091028Y (en) | 2007-09-14 | 2007-09-14 | Self force type finger sensing structure of outdoor high-voltage electric appliance ground switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201091028Y true CN201091028Y (en) | 2008-07-23 |
Family
ID=39862786
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200280436U Expired - Fee Related CN201091028Y (en) | 2007-09-14 | 2007-09-14 | Self force type finger sensing structure of outdoor high-voltage electric appliance ground switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201091028Y (en) |
-
2007
- 2007-09-14 CN CNU2007200280436U patent/CN201091028Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080723 Termination date: 20091014 |