CN112327102B - Outdoor breaking maintenance device for intelligent power distribution network - Google Patents

Outdoor breaking maintenance device for intelligent power distribution network Download PDF

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Publication number
CN112327102B
CN112327102B CN202011202809.4A CN202011202809A CN112327102B CN 112327102 B CN112327102 B CN 112327102B CN 202011202809 A CN202011202809 A CN 202011202809A CN 112327102 B CN112327102 B CN 112327102B
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China
Prior art keywords
rod
circuit breaker
switching
connector
control device
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CN202011202809.4A
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Chinese (zh)
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CN112327102A (en
Inventor
李宗垒
江辉
解晓琛
孔鹏
任亮陆
郝臻
王国杰
邹庆丽
陈鹏
管清伟
李晓志
丁超
王飞
王龙江
毕高丽
李天鹏
肖龙
于铮
刘广
刘鑫
蒲晓
宋海霞
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
State Grid Corp of China SGCC
Weihai Power Supply Co of State Grid Shandong Electric Power Co Ltd
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State Grid Corp of China SGCC
Weihai Power Supply Co of State Grid Shandong Electric Power Co Ltd
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Application filed by State Grid Corp of China SGCC, Weihai Power Supply Co of State Grid Shandong Electric Power Co Ltd filed Critical State Grid Corp of China SGCC
Priority to CN202011202809.4A priority Critical patent/CN112327102B/en
Publication of CN112327102A publication Critical patent/CN112327102A/en
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/08Locating faults in cables, transmission lines, or networks
    • G01R31/081Locating faults in cables, transmission lines, or networks according to type of conductors
    • G01R31/086Locating faults in cables, transmission lines, or networks according to type of conductors in power transmission or distribution networks, i.e. with interconnected conductors
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/60Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
    • H01H33/66Vacuum switches
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/60Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
    • H01H33/66Vacuum switches
    • H01H33/664Contacts; Arc-extinguishing means, e.g. arcing rings

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)

Abstract

The invention provides an outdoor circuit breaking maintenance device for an intelligent power distribution network, which comprises a shell, wherein a support is arranged in the shell, a circuit breaker and a drive control device of the circuit breaker are arranged below the support, a high-voltage capacitance voltage division measuring device and an information processing device are arranged above the support, the circuit breaker comprises a power inlet connector, a vacuum arc extinguish chamber, a power outlet connector, a switching-closing control device and a power outlet base, and the power inlet connector and the power outlet connector of the circuit breaker are arranged on the outer side of the shell. The invention has the advantages that the equipment adopts the solid-sealed type overhead line vacuum circuit breaker, all elements are sealed in the frame, all elements are stably connected, the equipment is provided with the high-voltage capacitance measuring device which has the energy taking function and can provide power supply for the operation of all elements, the vacuum arc-extinguishing chamber is internally provided with the meshing device, the contacts are stably connected through the electromagnetic effect, and the condition of poor contact during the closing process is effectively reduced.

Description

Outdoor breaking maintenance device for intelligent power distribution network
Technical Field
The invention belongs to the field of circuit breaker maintenance, and particularly relates to an outdoor circuit breaking maintenance device for an intelligent power distribution network.
Background
With the development of economy and social progress, the improvement of science and technology and informatization level, the development and utilization of energy, the coordinated development of a power grid faces new subjects and new challenges, the improvement of the intellectualization level of the power grid is a trend of future development depending on modern information, communication and control technology, so that the pace of informatization, automation and interactive construction of the power grid is accelerated, particularly in the aspect of automation of the power distribution grid, the upgrading and transformation work is very urgent, and the conventional outdoor circuit breaking and overhauling device for the intelligent power distribution grid usually has the following problems in investigation and discovery:
1. the switch and the control line of the existing high-voltage circuit breaker are exposed outdoors, and faults are easy to occur in weather such as strong wind, strong rain and the like;
2, when the line is overhauled, whether the line has a problem or not can not be judged by self, and when the line has an open circuit, the line can not be automatically opened at the first time, so that the line is damaged, and the service life of the breaker is shortened;
3. when the circuit breaker recovers after the circuit breaking, the circuit breaker is easy to close and is not smooth, and current cannot flow out in time to damage the circuit breaker.
Therefore, the technical personnel in the field provide an outdoor circuit breaking and repairing device for an intelligent power distribution network to solve the problems in the background technology.
Disclosure of Invention
The invention aims to provide an outdoor open circuit maintenance device for an intelligent power distribution network, which can effectively resist outdoor severe environment, and has the advantages of rapid response and high intelligent degree.
The technical scheme of the invention is as follows:
the utility model provides a be used for outdoor circuit breaking of smart power distribution network to overhaul device, includes the casing, is equipped with the support in the casing, and the support below is equipped with the drive control device of circuit breaker and circuit breaker, and the support top is equipped with high-voltage capacitance partial pressure measuring device and information processing device, and the drive control device of circuit breaker, high-voltage capacitance partial pressure measuring device, information processing device and circuit breaker links to each other in proper order.
Specifically, the drive control device is a relay.
Specifically, the information processing device is a single chip microcomputer.
The circuit breaker includes into electrical connector, vacuum interrupter, play electric joint, divide-shut brake controlling means and the seat of being qualified for the next round of competitions, the electrical connector of advancing of circuit breaker sets up in the casing outside with going out the electric joint, vacuum interrupter's both ends link to each other with advancing the electrical connector respectively with going out the electric joint, the circuit breaker is equipped with the casing, the seat of being qualified for the next round of competitions sets up on the casing, seat one end of being qualified for the next round of competitions links to each other with high-voltage capacitor partial pressure measuring device, the other end of the seat of being qualified for the next round of competitions links to each other with advancing the electrical connector, the drive control device and the divide-shut brake controlling means of circuit breaker link to each other.
The vacuum arc extinguish chamber is internally provided with an engaging device, the engaging device comprises a plurality of groups of first contacts and second contacts which are matched, the first contacts are connected with an electricity inlet connector through a first conducting rod, the second contacts are connected with an electricity outlet connector through a movable guide pull rod, and the movable guide pull rod is connected with a switching-on and switching-off control device through an insulating pull rod.
The first contact comprises a third conducting rod, one end of the third conducting rod is connected with the first conducting rod, a round-table-shaped metal block is arranged at the end of the other end of the third conducting rod, the end of the third conducting rod penetrates through the metal block, an electric coil is sleeved outside the third conducting rod, the second contact comprises a fourth conducting rod, the fourth conducting rod is connected with a movable conducting pull rod, a metal layer is arranged outside the fourth conducting rod, and a ceramic layer is arranged between the metal layer and the fourth conducting rod.
The opening and closing control device comprises a controllable telescopic rod, a sliding rod and a connecting rod, the driving control device drives the controllable telescopic rod to stretch, one end of the sliding rod is connected with the controllable telescopic rod, the controllable telescopic rod drives the sliding rod to slide, a reset spring is arranged at the other end of the sliding rod, and two ends of the connecting rod are respectively hinged with the end part of the insulating pull rod, far away from the second contact, and the end part of the sliding rod, close to the controllable telescopic rod.
The switching-on and switching-off control device further comprises a switching-on driving mechanism, the switching-on driving mechanism comprises a switching-on cam, a clamping groove matched with the switching-on cam, a buckling device and a transmission gear, the buckling device drives the switching-on cam to be separated from the clamping groove, the buckling device is connected with the information processing device, and a transmission arm which converts sliding of the sliding rod into rotation of the transmission gear is arranged between the transmission gear and the sliding rod.
The high-voltage capacitance voltage-dividing measuring device comprises a capacitance voltage divider, and a resonance elimination device and a damping resistor are arranged at the input end of the capacitance voltage divider.
The support is made of insulating materials.
An insulating support is arranged outside the fourth conducting rod, and an opening matched with one end, far away from the first conducting rod, of the first contact is formed in the insulating support.
And a shell made of ceramic material is arranged outside the vacuum arc extinguish chamber.
The invention has the advantages and positive effects that:
1. the device adopts a solid-sealed type overhead line vacuum circuit breaker, all elements are sealed in a frame and are not influenced by the external environment, and the device adopts line connection, and all elements are stably connected;
2. the device is provided with a high-voltage capacitance measuring device with an energy taking function, a power supply can be provided for the operation of each element, and an information processing module can automatically identify the problems of the circuit, open and close the brake in time and send an alarm;
3. be provided with engagement device in the vacuum interrupter in this equipment, through electromagnetic effect stable connection between the contact, the effectual bad contact condition that appears when closing a floodgate that has reduced has adopted divide-shut brake controlling means, and when the open circuit condition appeared in the circuit, information processing device received the information of opening a circuit very first time control drive control device, lets insulating pull rod in time pull out, and when the circuit recovered normally, the steerable insulation of divide-shut brake controlling means pulled back to the normal position, realizes that the oneself opens a circuit and restores.
Drawings
FIG. 1 is a schematic view of the structure of the present invention
FIG. 2 is a schematic view of the circuit breaker of the present invention
FIG. 3 is a schematic view of the structure of the vacuum interrupter of the present invention
FIG. 4 is an enlarged view of the engagement means at A in FIG. 3
FIG. 5 is a schematic view of the first contact and the second contact corresponding to each other
FIG. 6 is a schematic structural diagram of the switching-on/off control device of the present invention in the switching-on state
FIG. 7 is a schematic structural diagram of the opening and closing control device of the present invention in an open state
FIG. 8 is a schematic diagram of a high-voltage capacitance voltage-dividing measuring device according to the present invention
FIG. 9 is a schematic view of the structure of the locking device
In the figure:
1. casing 2, support 3, circuit breaker
4. Drive control device 5, high-voltage capacitance voltage division measuring device 6, and information processing device
31. Power-in connector 32, vacuum arc-extinguishing chamber 33 and power-out connector
34. Switching-on and switching-off control device 35, outgoing line seat 51 and capacitive voltage divider
52. Resonance elimination device 53, damping resistor 321 and first contact
322. Second contact 323, first conducting rod 324 and movable conducting pull rod
325. Insulating pull rod 326, ceramic outer shell 327 and ceramic inner shell
328. A first pull rod 341, a controllable telescopic rod 342 and a slide rod
343. Connecting rod 344, return spring 345 and closing cam
346. Clamping groove 347, clamping device 348 and transmission gear
349. Drive arm 511, capacitor ring 512, high-pressure epoxy bucket
513. High voltage pole plate 514, sampling pole plate 515, second conducting rod
516. Counter 3211, third conducting rod 3212, metal block
3213. An electric coil 3221, a fourth conducting rod outer 3222 and a metal layer
3223. Insulating support 3451, rocking arm 3452, locating pin
3471. First and second telescopic rods 3472 and 3472
Detailed Description
As shown in fig. 1-9, the present invention:
the utility model provides a drive control device 4 that is used for outdoor circuit breaking of smart power distribution network to overhaul device, includes casing 1, is equipped with support 2 in the casing 1, and 2 below of support are equipped with circuit breaker 3 and circuit breaker 3, and 2 tops of support are equipped with high-voltage capacitance partial pressure measuring device 5 and information processing device 6, and circuit breaker 3, high-voltage capacitance partial pressure measuring device 5, information processing device 6 and circuit breaker link to each other in proper order.
Specifically, the drive control device 4 is a relay.
Specifically, the information processing device 6 is a single chip microcomputer.
The high-voltage capacitor partial pressure measuring device 5 divides and reduces the pressure of the high-voltage capacitor and measures the divided capacitor, the high-voltage capacitor partial pressure measuring device 5 is connected with the information processing device 6 through a lead, the information processing device 6 receives a breaking signal sent by a meter 51 of the high-voltage capacitor partial pressure measuring device 5, and the driving control device 4 of the circuit breaker is electrified through the lead, so that the circuit breaker 3 is controlled to be opened and closed.
According to the invention, the switch and the control line of the circuit breaker 3 are sealed through the shell 1, so that the circuit breaker 3 is prevented from being out of order due to wind and rain, the circuit breaker 3, the high-voltage capacitance voltage division measuring device 5 and the information processing device 6 are separated through the bracket 2, the electric field interference is reduced, and the control precision and accuracy are improved.
Preferably, support 2 is insulating material, and the signal that opens circuit sends from counter 51, is received by information processing device 6, and this process is accomplished in casing 1 for the signal receives the probability greatly reduced that influences midway, and support 2 has adopted the material that separates the nature strong, thereby reduces the influence of electric current to the signal.
The circuit breaker 3 comprises an electric inlet connector 31, a vacuum arc extinguish chamber 32, an electric outlet connector 33, a switching-closing control device 34 and an outlet base 35, the electric inlet connector 31 and the electric outlet connector 33 of the circuit breaker 3 are arranged on the outer side of the shell 1, two ends of the vacuum arc extinguish chamber 32 are respectively connected with the electric inlet connector 31 and the electric outlet connector 33, one end of the outlet base 35 is connected with the high-voltage capacitance voltage division measuring device 5, the other end of the outlet base 35 is connected with the electric inlet connector 31, and a driving control device 4 of the circuit breaker 3 is connected with the switching-closing control device 34.
According to the invention, the wire outlet seat 35 is connected with the power inlet connector 31 of the circuit breaker 3, so that power can be taken no matter the circuit breaker 3 is opened or closed, and thus electric energy is provided for the operation of each element.
An engagement device is arranged in the vacuum arc extinguish chamber 32 and comprises a plurality of sets of first contacts 321 and second contacts 322 which are matched, the first contacts 321 are connected with the power inlet connector 31 through a first conducting rod 323, the second contacts 322 are connected with the power outlet connector 33 through a movable guide pull rod 324, and the movable guide pull rod 324 is connected with the switching-closing control device 34 through an insulating pull rod 325.
The vacuum arc-extinguishing chamber 32 comprises a ceramic outer shell 326, a ceramic inner shell 327, a movable guide pull rod 324, an engagement device, a first pull rod 328, a first insulating connector and a second insulating connector, wherein the ceramic outer shell is divided into a left space and a right space by a right bracket, the ceramic inner shell 327 is arranged in a left closed space formed by the right bracket and the ceramic outer shell 326, the first conductive rod 323 penetrates from the left side of the ceramic outer shell 326 and extends into the ceramic inner shell 327, the first pull rod 328 is arranged in the ceramic inner shell 327, the exterior of the first pull rod 328 is wrapped by ceramic, the first pull rod 328 is connected with the movable guide pull rod 324 through the first insulating connector, the first pull rod 328 is connected with the insulating pull rod 325 through the second insulating connector,
an engagement device is arranged between the movable guide pull rod 324 and the first conducting rod 323, and the engagement device is used for connecting the movable guide pull rod 324 and the first conducting rod 323 under a stable state, so that the circuit is kept in a power-on state, and the circuit is quickly powered off when the circuit is broken.
The outside ceramic casing 326 that is equipped with ceramic material of vacuum interrupter, isolated electric current causes the damage to circuit breaker 3 is inside, improves circuit breaker 3's life.
The first contact 321 includes a third conductive rod 3211, one end of the third conductive rod 3211 is connected to the first conductive rod 323, a circular truncated cone-shaped metal block 3212 is disposed at an end of the other end of the third conductive rod 3211, an end of the third conductive rod 3211 penetrates through the metal block 3212, an electric coil 3213 is sleeved outside the third conductive rod 3211, the second contact 322 includes a fourth conductive rod 3221, the fourth conductive rod 3221 is connected to the movable conductive pull rod 324, a metal layer 3222 is disposed outside the fourth conductive rod 3221, and a ceramic layer is disposed between the metal layer 3222 and the fourth conductive rod 3221.
The communication of the circuit breaker is realized through the communication between the third conducting rod 3211 and the fourth conducting rod 3221, the electric coil 3213 is sleeved outside the third conducting rod 3211, an electromagnetic effect is generated after the electric coil 3213 is electrified, the magnetic effect is further transmitted to the metal block 3212, and the metal block 3212 and the metal layer 3222 on the second contact are attracted, so that the end of the third conducting rod 3211 and the end of the fourth conducting rod 3221 are tightly and stably combined together, and the condition of poor contact during switching-on is effectively reduced.
Electric coil 3213 adopts the neodymium iron boron material, can normal operating under steady state, can lose efficacy when the electric current no longer normal value within range, electric coil 3213 will not produce the magnetic effect any longer.
The opening and closing control device 34 comprises a controllable telescopic rod 341, a sliding rod 342 and a connecting rod 343, the driving control device 4 drives the controllable telescopic rod 341 to stretch, one end of the sliding rod 342 is connected with the controllable telescopic rod 341, the controllable telescopic rod 341 drives the sliding rod 342 to slide, the other end of the sliding rod 342 is provided with a return spring 344, and two ends of the connecting rod 343 are respectively hinged to the end part of the insulating pull rod 325 far away from the second contact 322 and the end part of the sliding rod 342 near the controllable telescopic rod 341.
The switching-on and switching-off control device 34 further comprises a switching-on driving mechanism, the switching-on driving mechanism comprises a switching-on cam 345, a clamping groove 346 matched with the switching-on cam 345, a fastening device 347 and a transmission gear 348, the fastening device 347 drives the switching-on cam 345 to be separated from the clamping groove 346, the fastening device 347 is connected with the information processing device 6, and a transmission arm 349 which converts the sliding of the sliding rod 342 into the rotation of the transmission gear 348 is arranged between the transmission gear 348 and the sliding rod 342.
The closing cam 345 includes a rotating arm 3451 and a positioning pin 3452 disposed at an end of the rotating arm 3451, the positioning pin 3452 rotates along the locking groove 346, the locking device 347 includes a first telescopic rod 3471 and a second telescopic rod 3472, the first telescopic rod 3471 and the second telescopic rod 3472 are symmetrically disposed at two sides of the locking groove 346, when the first telescopic rod 3471 and the second telescopic rod 3472 extend, the ends of the first telescopic rod 3471 and the second telescopic rod 3472 are abutted to limit the rotation of the positioning pin 3452 in the locking groove. When the first telescopic rod 3471 and the second telescopic rod 3472 are contracted, the ends of the first telescopic rod 3471 and the second telescopic rod 3472 move back to back, and are separated from the locking groove 346, so that the rotation of the positioning pin 3452 in the locking groove 346 is released.
The switching-on and switching-off control device controls the control of a circuit breaker internal cutting circuit, and the waste of human resources is reduced under the control of the driving controller, so that the whole system is intelligent, and the development of distribution network automation is greatly improved.
The high-voltage capacitance voltage division measuring device 5 comprises a capacitance voltage divider 51, a resonance elimination device 52, a damping resistor 53 and a meter, wherein the capacitance voltage divider 51 comprises: capacitor ring 511, high-pressure epoxy bucket 512, the lower extreme has upper flange and lower flange respectively sealing connection on the high-pressure epoxy bucket 512, the upper flange top is provided with high-pressure polar plate 513, high-pressure polar plate 513 upper end is provided with damping resistor 53, resonance elimination device 52 and capacitor ring 511, resonance elimination device 52 passes through the wire and is connected with damping resistor 53, damping resistor 53 passes through the wire and is connected with capacitor ring 511, and resonance elimination form device 52 and damping resistor 53 can effectually eliminate ferromagnetic resonance in the distribution network.
The lower flange medial surface is provided with sample polar plate 514, sample polar plate 514 lower extreme is connected with and draws forth second conducting rod 515, and draws forth second conducting rod 515 and pass lower flange and connect the electric capacity partial pressure board, be provided with electric capacity and resistance on the electric capacity partial pressure board, counter 516 sets up on the lower flange, measures the electric capacity after the partial pressure, and during the signal transmission that counter 516 sent information processing apparatus 6, the signal sent from counter 516, received by information processor 6, and this process is accomplished in the frame for the signal receives the probability greatly reduced that influences midway, and support 2 has also adopted the material that separates strong, thereby reduces the influence of electric current to the signal.
An insulating support 3223 is disposed outside the fourth conductive rod 3221, and an opening matched with an end of the first contact far away from the first conductive rod 323 is disposed on the insulating support 3223.
The working process of the example is as follows:
high voltage enters the circuit breaker 3 from the power inlet connector 31, in the circuit breaker 3, current enters the vacuum arc extinguish chamber 32 through the first conducting rod 323, the power inlet connector 31 is connected with the wire outlet seat 35, the wire outlet seat 35 sends the current into the high voltage capacitance partial pressure measuring device 5 through a conducting wire, the partial pressure measurement of the high voltage capacitance partial pressure measuring device 5 is carried out, whether the high voltage exceeds a normal value or not is judged, if the high voltage exceeds the normal value, the meter 516 sends out alarm information, the information is received by the information processor 6, at the moment, the information processor 6 can electrify the driving control device 4 in the circuit breaker 3 and control the controllable telescopic rod 341 to contract, so that the spring can drive the connecting rod 343, the sliding rod 342 moves upwards, the sliding rod 342 drives the connecting rod 343, the connecting rod 343 pulls the insulating pull rod 325 to move rightwards, at the moment, an electric coil 3213 in the first contact 321 in the vacuum arc extinguish chamber loses the electromagnetic effect, the second contact 322 is not adsorbed any more, the closing drive mechanism starts to rotate until the closing cam 345 moves into the clamping groove 346, and the circuit breaker 3 completes the circuit breaker 3 circuit breaker open circuit protection.
When the circuit breaker 3 is opened and closed, the information processor 6 starts to release a signal to the buckle device 347, the closing cam 345 is disengaged from the clamping groove 346, the restoring spring 344 releases the stored elastic potential energy at the moment, the sliding rod 342 moves downwards, the sliding rod 342 drives the transmission arm 349 to start to move at the moment, the insulating pull rod 325 is stressed to move leftwards, the third conductive rod 3211 is communicated with the fourth conductive rod 3221, the coil 3213 in the first contact 321 recovers performance at the moment, magnetic force is generated, the magnetic force can be tightly attached to the second contact 322 fed by the insulating pull rod 325, and good conductivity is achieved.
While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention and should not be taken as limiting the scope of the invention. All equivalent changes and modifications made within the scope of the present invention shall fall within the scope of the present invention.

Claims (6)

1. The utility model provides a be used for outdoor open circuit of smart power distribution network to overhaul device which characterized in that: the device comprises a shell, a support is arranged in the shell, a circuit breaker and a drive control device of the circuit breaker are arranged below the support, a high-voltage capacitance voltage-dividing measuring device and an information processing device are arranged above the support, the circuit breaker comprises an incoming connector, a vacuum arc-extinguishing chamber, an outgoing connector, a switching-closing control device and an outgoing line seat, the incoming connector and the outgoing connector of the circuit breaker are arranged outside the shell, two ends of the vacuum arc-extinguishing chamber are respectively connected with the incoming connector and the outgoing connector, one end of the outgoing line seat is connected with the high-voltage capacitance voltage-dividing measuring device, the other end of the outgoing line seat is connected with the incoming connector, the drive control device of the circuit breaker is connected with the switching-closing control device, a meshing device is arranged in the vacuum arc-extinguishing chamber and comprises a plurality of groups of first contacts and second contacts which are matched, the first contacts are connected with the incoming connector through a first conducting rod, and the second contacts are connected with the outgoing connector through a movable conducting rod, the movable guide pull rod is connected with the switching-on and switching-off control device through an insulating pull rod, the switching-on and switching-off control device comprises a controllable telescopic rod, a sliding rod, a connecting rod and a switching-on and switching-off driving mechanism, the driving control device drives the controllable telescopic rod to stretch, one end of the sliding rod is connected with the controllable telescopic rod, the controllable telescopic rod drives the sliding rod to slide, the other end of the sliding rod is provided with a return spring, two ends of the connecting rod are respectively hinged with the end part of the insulating pull rod far away from the second contact and the end part of the sliding rod close to the controllable telescopic rod, the switching-on and switching-off driving mechanism comprises a switching-on cam, a clamping groove matched with the switching-on cam, a buckling device for driving the switching-on cam to be separated from the clamping groove and a transmission gear, the buckling device is connected with an information processing device, a transmission arm for converting the sliding of the sliding rod into the rotation of the transmission gear is arranged between the transmission gear and the sliding rod, the switching-on cam comprises a rotating arm and a positioning pin arranged at the end part of the rotating arm, the locating pin rotates along the draw-in groove, buckle device includes first telescopic link and second telescopic link, and first telescopic link and second telescopic link symmetry set up in the both sides of draw-in groove.
2. The outdoor circuit breaker overhauling device for the intelligent power distribution network according to claim 1, wherein: the first contact comprises a third conducting rod, one end of the third conducting rod is connected with the first conducting rod, a round-table-shaped metal block is arranged at the end of the other end of the third conducting rod, the end of the third conducting rod penetrates through the metal block, an electric coil is sleeved outside the third conducting rod, the second contact comprises a fourth conducting rod, the fourth conducting rod is connected with a movable conducting pull rod, a metal layer is arranged outside the fourth conducting rod, and a ceramic layer is arranged between the metal layer and the fourth conducting rod.
3. The outdoor circuit breaker overhauling device for the intelligent power distribution network according to claim 1, wherein: the high-voltage capacitance voltage-dividing measuring device comprises a capacitance voltage divider, and a resonance elimination device and a damping resistor are arranged at the input end of the capacitance voltage divider.
4. The outdoor circuit breaker overhauling device for the intelligent power distribution network according to claim 1, wherein: the support is made of insulating materials.
5. The outdoor circuit breaking and overhauling device for the intelligent power distribution network according to claim 2, wherein the outdoor circuit breaking and overhauling device comprises: an insulating support is arranged outside the fourth conducting rod, and an opening matched with the end part of the first contact is formed in the insulating support.
6. The outdoor circuit breaker overhauling device for the intelligent power distribution network according to claim 1, wherein: and a shell made of ceramic is arranged outside the vacuum arc extinguish chamber.
CN202011202809.4A 2020-11-02 2020-11-02 Outdoor breaking maintenance device for intelligent power distribution network Active CN112327102B (en)

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CN112327102B true CN112327102B (en) 2022-10-04

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