CN202939878U - Circuit switching device of 10kV distribution network demonstration system - Google Patents
Circuit switching device of 10kV distribution network demonstration system Download PDFInfo
- Publication number
- CN202939878U CN202939878U CN 201220585287 CN201220585287U CN202939878U CN 202939878 U CN202939878 U CN 202939878U CN 201220585287 CN201220585287 CN 201220585287 CN 201220585287 U CN201220585287 U CN 201220585287U CN 202939878 U CN202939878 U CN 202939878U
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- cylinder
- isolation switch
- hinged
- piston rod
- strip
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Abstract
The utility model discloses a circuit switching device of a 10kV distribution network demonstration system, which comprises an isolation switch, a fixed frame for supporting the isolation switch and a pneumatic actuating mechanism for controlling opening and closing movement of the switch, wherein the fixed frame is arranged below the isolation switch; the pneumatic actuating mechanism comprises a pneumatic control valve, an insulation air pipe and a cylinder; the piston rod on the upper end of the cylinder is hinged with the free end of the insulation pull rod on the isolation switch; the lower end of the cylinder is hinged on the lower part of the fixed frame; the pneumatic control valve is connected with the cylinder via the insulation air pipe for controlling lengthening and shortening of the piston rod of the cylinder to act on the insulation pull rod to enable the switch of the isolation switch to rotate. As the pneumatic control valve at the control panel is connected with the cylinder near the isolation switch via the insulation air pipe, even if the isolation switch leads high voltage in the distribution network to a grounding metal base, the voltage cannot be led to the control panel, thereby ensuring safety of an operator at the operation panel.
Description
Technical field
The utility model relates to a kind of circuit fling-cut equipment for 10kV high voltage demo system.
Background technology
Isolation switch is the most frequently used connecting and disconnecting of the circuit opertaing device of 10kV high pressure overhead power line.Isolation switch comprises metab, dynamic and static contact base and plug-in strip, the dynamic and static contact base of isolation switch is supported on metab by insulator, plug-in strip one end is hinged on movable contact block, its middle part is connected with an insulated tension pole, operate described insulated tension pole plug-in strip is rotated with respect to described movable contact block, the other end of plug-in strip and described fixed contact pedestal are mutually deciliter to realize the circuit switching.
For the harm that allows the clear understanding of operative employee maloperation isolation switch breaking current bring, in the demo system of 10kV power distribution network, can allow operative employee's break-make of operation isolation disconnecting link on the spot.Yet, in demo system, the break-make of frequent operation isolation switch, may cause the high pressure in power distribution network the grounded metal part of disconnecting link.When ground connection is broken down, just likely high pressure is guided on control gear, caused electric shock accidents.
The utility model content
Technical problem to be solved in the utility model is, provides a kind of security higher circuit switching device.
Technical problem to be solved in the utility model is achieved through the following technical solutions: a kind of circuit switching device of 10kV power distribution network demo system, comprise isolation switch, described isolation switch comprises metab, moving, fixed contact pedestal and plug-in strip, described moving, fixed contact pedestal is supported on metab by insulator, plug-in strip one end is hinged on movable contact block, its middle part is connected with an end of an insulated tension pole, the free end that operates described insulated tension pole makes plug-in strip rotate with respect to described movable contact block, the other end of plug-in strip and described fixed contact pedestal are mutually deciliter to realize the circuit switching,
It is characterized in that, also comprise the fixed mount for supporting described isolation switch and divide the pneumatic actuator of resultant motion for controlling described plug-in strip;
Described fixed mount is located at the bottom of described isolation switch, described pneumatic actuator comprises Pneumatic valve, insulation tracheae and cylinder, the piston rod of described cylinder upper end and the free end of described insulated tension pole are hinged, described cylinder lower end is hinged on the bottom of described fixed mount, described Pneumatic valve is connected with described cylinder by described insulation tracheae, thereby control, the piston rod of described cylinder is flexible to be acted on described insulated tension pole described plug-in strip is rotated.
Use the insulation tracheae, isolation switch if there is accidental discharge, can not guided to high pressure on control desk than switching operation more frequently the time yet, has guaranteed operating personnel's safety.
Described Pneumatic valve is to have the gas control locking-valve that bit architecture is protected in self-locking, makes it after losing gas, and the piston rod of cylinder still remains on the position after action executing.
As a kind of improvement of the present utility model, described circuit switching device also comprises a connecting rod, the piston rod of described connecting rod one end and described insulated tension pole, cylinder is coaxially hinged, the other end is hinged on the metab of isolation switch, described connecting rod moves in a vertical plane, for limiting the movement locus of described insulated tension pole and piston rod hinged end, improve equilibrium of forces on the transmission of power between piston rod and insulated tension pole and each movement position.
The utlity model has following beneficial effect:
1) the utility model is simple in structure, cost is lower, take pressurized air as power, the Pneumatic valve at control desk place is connected with near cylinder isolation switch by the insulation tracheae, even isolation switch is in operating process frequently, high pressure in power distribution network is caused on the grounded metal base, also high pressure can not guided to the operation bench part, the protection operative employee's of operation bench place safety;
2) Pneumatic valve of the present utility model adopts and has the gas control locking-valve that bit architecture is protected in self-locking, even make Pneumatic valve after losing gas, also can make the position after the piston rod of cylinder remains on action executing, reduces the maloperation of isolation switch;
3) the utility model is provided for limiting the connecting rod of the movement locus of described insulated tension pole and piston rod hinged end, is conducive to improve equilibrium of forces on the transmission of power between piston rod and insulated tension pole and each movement position.
The accompanying drawing explanation
The structural representation that Fig. 1 is the utility model preferred embodiment.
Embodiment
Below in conjunction with drawings and the specific embodiments, the utility model is described in further detail.
As shown in Figure 1, the circuit switching device of the utility model preferred embodiment comprises isolation switch 1, for supporting the fixed mount 2 of isolation switch 1 and, for controlling the pneumatic actuator 3 of described isolation switch 1 switching, fixed mount 2 is located at the bottom of isolation switch 1, both are connected.
Isolation switch 1 comprises metab 11, dynamic and static contact base 12,13 and plug-in strip 14, dynamic and static contact base 12,13 is supported on metab 11 by insulator 15, plug-in strip 14 1 ends are hinged on movable contact block 12, its middle part is connected with an end of an insulated tension pole 16, the free end of operation insulated tension pole 16 makes plug-in strip 14 rotate with respect to movable contact block 12, and the other end of plug-in strip 14 and fixed contact pedestal 13 phases are deciliter to realize the circuit switching.
Circuit switching device of the present utility model also comprises connecting rod 6, the piston rod 331 of connecting rod 6 one ends and insulated tension pole 16, cylinder 33 is coaxially hinged by pin 5, the other end and the rotation axis welding be vertical on metab 11, be hinged on by rotation axis on the metab 11 of isolation switch 1.Connecting rod 6 moves in a vertical plane, in the piston rod 331 of cylinder 33 is made the process of stretching motion, the rotation axis that the jointed shaft pin 5 of piston rod 331, connecting rod 6, insulated tension pole 16 be take on metab 11 is circular motion as the center of circle, top by 331 pairs of insulated tension poles 16 of piston rod, draw, operation plug-in strip 14 deciliter.Pin 4 on fixed mount 3 guarantees that cylinder 33 has certain freedom of motion on x, y direction of principal axis.Connecting rod 6 is for limiting the movement locus of insulated tension pole 16 and piston rod 331 hinged ends, is conducive to improve equilibrium of forces on the transmission of piston rod 331 and 16 power of insulated tension pole and each movement position.
The cylinder of the preferred axial force of cylinder of the present utility model more than 50kG.Above-described embodiment of the present utility model should not form the restriction to the utility model protection domain.
Claims (3)
1. the circuit switching device of a 10kV power distribution network demo system, comprise isolation switch, described isolation switch comprises metab, dynamic and static contact base and plug-in strip, described dynamic and static contact base is supported on metab by insulator, and plug-in strip one end is hinged on movable contact block, and its middle part is connected with an end of an insulated tension pole, the free end that operates described insulated tension pole makes plug-in strip rotate with respect to described movable contact block, and the other end of plug-in strip and described fixed contact pedestal are mutually deciliter to realize the circuit switching;
It is characterized in that, also comprise the fixed mount for supporting described isolation switch and divide the pneumatic actuator of resultant motion for controlling described plug-in strip;
Described fixed mount is located at the bottom of described isolation switch, described pneumatic actuator comprises Pneumatic valve, insulation tracheae and cylinder, the piston rod of described cylinder upper end and the free end of described insulated tension pole are hinged, described cylinder lower end is hinged on the bottom of described fixed mount, described Pneumatic valve is connected with described cylinder by described insulation tracheae, thereby control, the piston rod of described cylinder is flexible to be acted on described insulated tension pole described plug-in strip is rotated.
2. the circuit switching device of 10kV power distribution network demo system according to claim 1, is characterized in that, described Pneumatic valve is to have the gas control locking-valve that bit architecture is protected in self-locking, makes it after losing gas, and the piston rod of cylinder still remains on the position after action executing.
3. the circuit switching device of 10kV power distribution network demo system according to claim 1 and 2, it is characterized in that, described circuit switching device also comprises a connecting rod, the piston rod of described connecting rod one end and described insulated tension pole, cylinder is coaxially hinged, the other end is hinged on the metab of isolation switch, described connecting rod moves in a vertical plane, for limiting the movement locus of described insulated tension pole and piston rod hinged end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220585287 CN202939878U (en) | 2012-11-08 | 2012-11-08 | Circuit switching device of 10kV distribution network demonstration system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220585287 CN202939878U (en) | 2012-11-08 | 2012-11-08 | Circuit switching device of 10kV distribution network demonstration system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202939878U true CN202939878U (en) | 2013-05-15 |
Family
ID=48324105
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220585287 Expired - Lifetime CN202939878U (en) | 2012-11-08 | 2012-11-08 | Circuit switching device of 10kV distribution network demonstration system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202939878U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105070572A (en) * | 2015-07-29 | 2015-11-18 | 苏州上电科电气设备有限公司 | Low-current pneumatic knife switch |
| CN108665773A (en) * | 2018-07-24 | 2018-10-16 | 国网辽宁省电力有限公司本溪供电公司 | A kind of insulator binding crosshead |
-
2012
- 2012-11-08 CN CN 201220585287 patent/CN202939878U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105070572A (en) * | 2015-07-29 | 2015-11-18 | 苏州上电科电气设备有限公司 | Low-current pneumatic knife switch |
| CN108665773A (en) * | 2018-07-24 | 2018-10-16 | 国网辽宁省电力有限公司本溪供电公司 | A kind of insulator binding crosshead |
| CN108665773B (en) * | 2018-07-24 | 2024-02-02 | 国网辽宁省电力有限公司本溪供电公司 | Insulator ligature operation frame |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130515 |