CN112735899B - Intelligent circuit breaker - Google Patents
Intelligent circuit breaker Download PDFInfo
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- CN112735899B CN112735899B CN202011548199.3A CN202011548199A CN112735899B CN 112735899 B CN112735899 B CN 112735899B CN 202011548199 A CN202011548199 A CN 202011548199A CN 112735899 B CN112735899 B CN 112735899B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/02—Details
- H01H33/027—Integrated apparatus for measuring current or voltage
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
- H01H33/664—Contacts; Arc-extinguishing means, e.g. arcing rings
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- Gas-Insulated Switchgears (AREA)
Abstract
The invention discloses an intelligent circuit breaker, which comprises a frame, wherein the frame consists of a transverse plate and a vertical plate, the lower end of a transformer with a conductive rod is arranged on the transverse plate of the frame, the transformer with the conductive rod is connected with a vacuum arc-extinguishing chamber, an upper contact is connected with the upper end of the vacuum arc-extinguishing chamber, a lower contact is connected with the upper end of the transformer with the conductive rod, an insulating pull rod assembly is connected with the transformer with the conductive rod, the insulating pull rod assembly is connected with an operating mechanism, the operating mechanism is arranged on the upper part of the vertical plate of the frame, a current measuring module and a voltage measuring module are arranged in the transformer with the conductive rod, the output end of the current measuring module and the output end of the voltage measuring module are connected with a data monitoring assembly through cables, and the data monitoring assembly is arranged on the vertical plate of the frame. The circuit breaker monitors the vacuum arc-extinguishing chamber in real time through the current measuring module and the voltage measuring module, and then judges whether the vacuum arc-extinguishing chamber works normally according to the real-time monitoring result.
Description
Technical Field
The invention relates to the technical field of circuit breakers, in particular to an intelligent circuit breaker.
Background
The high-voltage circuit breaker plays a control role in a high-voltage circuit and is one of important electrical components in the high-voltage circuit. The circuit breaker is used for switching on or off a circuit in normal operation, the circuit is rapidly switched off under the action of the relay protection device under the fault condition, and the short-circuit current is reliably switched on under special conditions (such as when the circuit breaker automatically coincides with a fault line). A high voltage circuit breaker is a special electrical appliance that turns on or off a high voltage circuit under normal or fault conditions.
In the working process of the circuit breaker, if the temperature of the main loop is too high, heating and oxidization can be accelerated, so that phenomena such as melting and falling of a contact finger, burning of a contact, failure of an insulating material and the like are caused, and even combustion and explosion are caused in severe cases. It is therefore necessary to monitor the operating current and voltage of the vacuum circuit breaker in real time to determine whether the vacuum circuit breaker is operating properly.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides an intelligent circuit breaker.
The aim of the invention is realized by the following technical scheme:
the utility model provides an intelligent circuit breaker, includes frame, takes conductive rod type mutual-inductor, lower contact, vacuum interrupter, goes up contact, operating device, insulating pull rod subassembly, current measurement module, voltage measurement module and data monitoring module, the frame comprises transverse plate and vertical board and the cross-section is the support body of L type, the lower extreme setting of taking conductive rod type mutual-inductor is in on the transverse plate of frame, the upper end of taking conductive rod type mutual-inductor with the lower extreme of vacuum interrupter links to each other, go up the contact with the upper end of vacuum interrupter links to each other, the lower contact is connected the upper end of taking conductive rod type mutual-inductor insulating pull rod subassembly one end with the upper end of taking conductive rod type mutual-inductor links to each other, the other end of insulating pull rod subassembly with operating device links to each other, operating device sets up the upper portion of the vertical board of frame, the inside of taking conductive rod type mutual-inductor is provided with be used for real-time supervision the inside electric current measurement module of vacuum interrupter, the inside still is provided with the inside voltage measurement module of taking conductive rod type mutual-inductor the vacuum interrupter, voltage measurement module and the voltage measurement module of taking conductive rod type mutual-inductor are in real-time indoor voltage measurement module with the data measurement module and the output module and the data of taking conductive rod type mutual-inductor are in real-time voltage measurement module.
Further, the vacuum arc-extinguishing chamber comprises an insulating shell, a moving contact and a fixed contact, wherein the moving contact and the fixed contact are both arranged inside the insulating shell, and when the vacuum arc-extinguishing chamber is electrified, the lower end of the fixed contact is contacted with and matched with the upper end of the moving contact.
Further, the upper end of the fixed contact is connected with one end of an outgoing line seat, the other end of the outgoing line seat is connected with one end of an upper conducting rod, the other end of the upper conducting rod is connected with the upper contact, the outgoing line seat is connected with one end of an insulator, the other end of the insulator is connected with a vertical plate of the frame, and the insulator is arranged on the upper side of the insulating pull rod assembly.
Further, the lower extreme of moving contact extends to take the inside of electrically conductive rod-type mutual-inductor, and the side of its lower extreme links to each other with the one end of lower conducting rod, the other end of lower conducting rod with the lower contact links to each other, simultaneously, the tip of the lower extreme of moving contact is in with set up the one end of the inside drive assembly of electrically conductive rod-type mutual-inductor in area is connected, drive assembly's the other end with the end connection of insulating pull rod assembly, take the inside cavity that is provided with of electrically conductive rod-type mutual-inductor is used for installing drive assembly.
Further, the transmission assembly comprises a rotating shaft and a rotating rod, the rotating shaft is arranged on the inner wall of the cavity, a rotating hole which is circular and matched with the rotating shaft is formed in the middle of the rotating rod, one end of the rotating rod is hinged to the end of the insulating pull rod assembly, a long strip hole is formed in the other end of the rotating rod, a cylindrical fixed shaft is fixedly arranged at the lower end of the moving contact, and the fixed shaft is matched with the long strip hole.
Further, a lantern ring is fixedly arranged at the end part of the lower conducting rod, and the inner wall of the lantern ring is matched with the outer wall of the moving contact.
Further, a plurality of grooves are formed in the side face of the lower end of the moving contact, and a plurality of protrusions matched with the grooves are formed in the inner wall of the lantern ring.
Further, V-shaped grooves which are matched with each other are formed in the contact surfaces of the moving contact and the fixed contact.
Further, the current measurement module comprises a current iron core, a current input side winding coil and a current output side winding coil, the current iron core is a closed iron core, the current input side winding coil and the current output side winding coil are oppositely wound on the current iron core, the input end of the current input side winding coil is connected to the movable contact, the output end of the current input side winding coil is connected to the lower conducting rod, and the end parts at two ends of the current output side winding coil are connected with the data monitoring assembly.
Further, the voltage measurement module comprises a voltage iron core, a voltage input side winding coil and a voltage output side winding coil, the voltage iron core is a closed iron core, the voltage input side winding coil and the voltage output side winding coil are oppositely wound on the voltage iron core, the input end of the voltage input side winding coil is connected to the movable contact, the output end of the voltage input side winding coil is grounded, and the end parts at two ends of the voltage output side winding coil are connected with the data monitoring assembly.
The beneficial effects of the invention are as follows:
1) In the circuit breaker, a current measurement module and a voltage measurement module are arranged inside the transformer with the conductive rod, the current measurement module and the voltage measurement module directly monitor specific conditions when the vacuum arc-extinguishing chamber is opened and closed, monitored real-time data are transmitted to a data monitoring component, and the data monitoring component can monitor whether the vacuum arc-extinguishing chamber works normally in real time through analysis and calculation.
2) In the circuit breaker, V-shaped grooves matched with each other are formed in the contact surfaces of the moving contact and the fixed contact, grooves are formed in the side surfaces of the lower end of the moving contact, protrusions are arranged on the inner wall of the lantern ring, so that the contact area of the connecting part is larger, the resistance of the contact part is effectively reduced, the heat generated in the circuit breaker is reduced, and the circuit breaker is better protected.
3) The transformer with the conducting rod is connected with the lower contact, so that the overlap joint surface is reduced, the resistance is reduced, and the reliability of the switch equipment is improved.
Drawings
Fig. 1 is a schematic diagram of a prior art circuit breaker connection structure;
FIG. 2 is a schematic diagram of the connection structure of the circuit breaker;
FIG. 3 is a schematic diagram of the internal structure of the transformer with conductive rods;
FIG. 4 is a schematic view of the cross-sectional structure A-A of FIG. 3;
FIG. 5 is a schematic diagram of an end structure of a stationary contact;
FIG. 6 is a schematic diagram of a connection structure of the current measurement module;
fig. 7 is a schematic diagram of a connection structure of the voltage measurement module.
In the figure, the frame is 1-, the conductive rod type transformer is 2-with, the lower contact is 3-, the vacuum arc extinguishing chamber is 4-with, the insulating shell is 4.1-with, the moving contact is 4.2-with, the fixed contact is 4.3-with, the upper contact is 5-with, the upper conductive rod is 6-with, the wire outlet seat is 7-with, the insulator is 8-with, the operating mechanism is 9-with, the pull rod component is 10-with insulation, the current measuring module is 11-with, the voltage measuring module is 12-with, the data monitoring component is 13-with, the lower conductive rod is 14-with, the cavity is 15-with, the rotating rod is 16-with, the rotating shaft is 17-with, the rotating hole is 18-with, the long hole is 19-with 20-fixing shaft, the collar is 21-with, the groove is 22-with the groove is 23-protruding, the groove is 24-V, the current core is 25-with the winding coil on the current input side is 26-with the current output side, the winding coil is 27-with the voltage core is 29-with the voltage input side.
Detailed Description
The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments, and it is apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by a person skilled in the art without any inventive effort, are intended to be within the scope of the present invention, based on the embodiments of the present invention.
Referring to fig. 2-7, the present invention provides a technical solution:
the utility model provides an intelligent circuit breaker, including frame 1, take conductive rod type mutual-inductor 2, lower contact 3, vacuum interrupter 4, go up contact 5, operating device 9, insulating pull rod assembly 10, current measurement module 11, voltage measurement module 12, data monitoring assembly 13, frame 1 comprises transverse plate and vertical board and the cross-section is the support body of L type, take conductive rod type mutual-inductor 2's lower extreme setting on the transverse plate of frame 1, take conductive rod type mutual-inductor 2's upper end and vacuum interrupter 4's lower extreme to link to each other, go up contact 5 and vacuum interrupter 4's upper end and link to each other, lower contact 3 connects in take conductive rod type mutual-inductor 2's upper end, insulating pull rod assembly 10's one end and take conductive rod type mutual-inductor 2's upper end to link to each other with operating device 9, operating device 9 sets up the upper portion at frame 1's vertical board, take conductive rod type mutual-inductor 2's inside to be provided with the current measurement module 11 that is used for real-time monitoring vacuum interrupter 4 internal current, take conductive rod type mutual-inductor 2's inside still to be provided with the voltage measurement module 12 that is used for real-time monitoring vacuum interrupter 4 internal voltage's voltage, output cable measurement module 11 and voltage measurement module 13 are all set up at the output cable 13 on frame 1. Wherein, operating mechanism 9 provides power for insulating pull rod assembly 10, and this power impels insulating pull rod assembly 10 to realize the power of pulling or pushing, and insulating pull rod assembly 10 belongs to prior art. Since the current measuring module 11 and the voltage measuring module 12 measure the current and the voltage in the vacuum interrupter 4, the input ends of the current measuring module 11 and the voltage measuring module 12 are connected to the vacuum interrupter 4, and in order to prevent the cable at the input ends of the current measuring module 11 and the voltage measuring module 12 from breaking, the current measuring module 11 and the voltage measuring module 12 are disposed in the transformer 2 with conductive rod. In the using process of the circuit breaker, current is input from the upper contact 5, then passes through the vacuum arc extinguishing chamber 4 and finally is output from the lower contact 3. The transformer with the conducting rod is arranged in the circuit breaker and connected with the lower contact 3, so that the overlap joint surface is reduced, the resistance is reduced, and the reliability of the switch equipment is improved.
The vacuum arc-extinguishing chamber 4 comprises an insulating shell 4.1, a moving contact 4.2 and a fixed contact 4.3, wherein the moving contact 4.2 and the fixed contact 4.3 are arranged inside the insulating shell 4.1, and when the electric power is applied, the lower end of the fixed contact 4.3 is contacted with and matched with the upper end of the moving contact 4.2. The vacuum arc-extinguishing chamber 4 is equipment for realizing direct on-off of a high-voltage transmission line, the fixed contact 4.3 is fixed inside the insulating shell 4.1, the movable contact 4.2 is movable in the insulating shell 4.1, and when the lower end of the fixed contact 4.3 is contacted with the upper end of the movable contact 4.2, the inside of the vacuum arc-extinguishing chamber 4 is communicated to realize electrifying; when the lower end of the fixed contact 4.3 is separated from the upper end of the movable contact 4.2, the vacuum arc-extinguishing chamber 4 is internally disconnected, and power failure is realized. The moving contact 4.2 is completed within 0.01s when moving, so as to prevent electric arc, and an arc extinguishing component is further arranged in the vacuum arc extinguishing chamber 4, and the arc extinguishing component belongs to the prior art and is not described in detail.
The upper end of the fixed contact 4.3 is connected with one end of an outgoing line seat 7, the other end of the outgoing line seat 7 is connected with one end of an upper conducting rod 6, the other end of the upper conducting rod 6 is connected with an upper contact 5, the outgoing line seat 7 is connected with one end of an insulator 8, the other end of the insulator 8 is connected with a vertical plate of the frame 1, and the insulator 8 is arranged on the upper side of an insulating pull rod assembly 10. In this section, the current enters from the upper contact 5 and then passes through the upper conducting rod 6 and the outlet seat 7 in sequence and is transferred to the stationary contact 4.3.
In some embodiments, the lower end of the moving contact 4.2 extends into the conductive rod type transformer 2, and the side surface of the lower end of the moving contact is connected with one end of the lower conductive rod 14, the other end of the lower conductive rod 14 is connected with the lower contact 3, meanwhile, the end of the lower end of the moving contact 4.2 is connected with one end of a transmission component arranged in the conductive rod type transformer 2, the other end of the transmission component is connected with the end of the insulating pull rod component 10, and a cavity 15 for installing the transmission component is arranged in the conductive rod type transformer 2. In this section, the current on the moving contact 4.2 is transferred to the lower contact 3 via the lower conducting rod 14. The purpose of the transmission assembly is to make the moving contact 4.2 move instantaneously so that the moving contact 4.2 and the fixed contact 4.3 contact instantaneously or separate instantaneously.
In some embodiments, the transmission assembly comprises a rotating shaft 17 and a rotating rod 16, the rotating shaft 17 is arranged on the inner wall of the cavity 15, a round rotating hole 18 matched with the rotating shaft 17 is arranged in the middle of the rotating rod 16, one end of the rotating rod 16 is hinged with the end part of the insulation pull rod assembly 10, an elongated hole 19 is arranged at the other end of the rotating rod 16, a cylindrical fixed shaft 20 is fixedly arranged at the lower end of the movable contact 4.2, and the fixed shaft 20 is matched with the elongated hole 19. The rotary rod 16 can rotate around the rotary shaft 17, both ends of the rotary shaft 17 are fixed on the inner wall of the cavity 15 in the conductive rod type mutual inductor 2, and one end of the rotary rod 16 is hinged with the end part of the insulating pull rod assembly 10, so when the insulating pull rod assembly 10 pushes the end part of the rotary rod 16, the movable contact 4.2 moves towards the fixed contact 4.3 under the action of the rotary rod 16 according to the lever principle, and circuit communication is realized; when the insulating pull rod assembly 10 pulls the end part of the rotating rod 16, the moving contact 4.2 moves away from the fixed contact 4.3 under the action of the rotating rod 16 according to the lever principle, so that the circuit is disconnected. Since the rotating rod 16 is rotated and the moving contact 4.2 is reciprocated up and down, in order to prevent interference between the rotating rod 16 and the moving contact 4.2, the fixed shaft 20 at the lower end of the moving contact 4.2 can be moved in the elongated hole 19 in order to avoid interference so that the moving contact 4.2 is not movable. In order to ensure stable transmission, the ends of the insulating pull rod assembly 10 and the movable contact 4.2 are provided with two lugs, and the ends of the two ends of the rotating rod 16 are clamped between the two lugs.
In some embodiments, the end of the lower conductive rod 14 is fixedly provided with a collar 21, the inner wall of the collar 21 being fitted with the outer wall of the moving contact 4.2. A plurality of grooves 22 are arranged on the side surface of the lower end of the movable contact 4.2, and a plurality of protrusions 23 matched with the grooves 22 are arranged on the inner wall of the lantern ring 21. The recess 22 is arranged on the side of the lower end of the moving contact 4.2, and the protrusion 23 is arranged on the inner wall of the lantern ring 21, so that the contact area of the joint is larger, the resistance of the contact is effectively reduced, the heat generated in the circuit breaker is reduced, and the circuit breaker is better protected.
In some embodiments, the contact surfaces of the moving contact 4.2 and the fixed contact 4.3 are provided with mutually matched V-shaped grooves 24. The V-shaped grooves 24 which are matched with each other are formed in the contact surfaces of the movable contact 4.2 and the fixed contact 4.3, the V-shaped grooves 24 are formed so that the contact area of the connecting part is larger, the resistance of the contact part is effectively reduced, the heat generated in the circuit breaker is reduced, and the circuit breaker is better protected.
In some embodiments, the current measurement module 11 includes a current iron core 25, a current input side winding coil 26 and a current output side winding coil 27, the current iron core 25 is a closed iron core, the current input side winding coil 26 and the current output side winding coil 27 are wound on the current iron core 25 oppositely, an input end of the current input side winding coil 26 is connected to the moving contact 4.2, an output end of the current input side winding coil 26 is connected to the lower conductive rod 14, and ends of two ends of the current output side winding coil 27 are connected to the data monitoring component 13. The data monitoring assembly 13 is of the prior art and is used for recording measured data and transmitting the measured data to the client, and the current measuring module 11 is connected in such a way that the current on the moving contact 4.2 is effectively measured. The current measurement module 11 can convert the large current through the moving contact 4.2 into an acceptably small current on the data monitoring assembly 13. The current measuring module 11 adopts a current transformer, and the principle of the current transformer is based on the electromagnetic induction principle.
In some embodiments, the voltage measurement module 12 includes a voltage iron core 28, a voltage input side winding coil 29 and a voltage output side winding coil 30, the voltage iron core 28 is a closed iron core, the voltage input side winding coil 29 and the voltage output side winding coil 30 are oppositely wound on the voltage iron core 28, an input end of the voltage input side winding coil 29 is connected to the moving contact 4.2, an output end of the voltage input side winding coil 29 is grounded, and two ends of the voltage output side winding coil 30 are connected to the data monitoring component 13. The data monitoring component 13 is of prior art for recording measured data and may transmit the measured data to a client. The voltage measurement module 12 can convert the high voltage across the moving contact 4.2 into an acceptably low voltage across the data monitoring assembly 13. The voltage measurement module 12 employs a voltage transformer.
As shown in fig. 1, in the circuit breaker of the prior art, outlet seats 7 are arranged at two ends of a vacuum arc-extinguishing chamber 4, and an insulator 8 is arranged on each outlet seat 7 to be connected with a vertical plate of a frame 1, so that the vacuum arc-extinguishing chamber 4 is fixed, and the vacuum arc-extinguishing chamber 4 is prevented from being unstable under the action of a lower conducting rod 14. The use of the circuit breaker can reduce the use of the insulator 8 at the lower side and the wire outlet seat 7 at the lower side, thereby achieving the purpose of saving materials, and simultaneously reducing the generation of waste materials in the process of manufacturing the insulator 8 and the wire outlet seat 7, so that the circuit breaker is more energy-saving and environment-friendly.
The foregoing is merely a preferred embodiment of the invention, and it is to be understood that the invention is not limited to the form disclosed herein but is not to be construed as excluding other embodiments, but is capable of numerous other combinations, modifications and environments and is capable of modifications within the scope of the inventive concept, either as taught or as a matter of routine skill or knowledge in the relevant art. And that modifications and variations which do not depart from the spirit and scope of the invention are intended to be within the scope of the appended claims.
Claims (1)
1. The utility model provides an intelligent circuit breaker, its characterized in that includes frame (1), takes electrically conductive rod-type mutual-inductor (2), lower contact (3), vacuum interrupter (4), go up contact (5), operating device (9), insulating pull rod subassembly (10), current measurement module (11), voltage measurement module (12) and data monitoring subassembly (13), frame (1) comprises transverse plate and vertical board and the support body that the cross-section is L-shaped, the lower extreme setting of taking electrically conductive rod-type mutual-inductor (2) is in on the transverse plate of frame (1), the upper end of taking electrically conductive rod-type mutual-inductor (2) with the lower extreme of vacuum interrupter (4) links to each other, go up contact (5) with the upper end of vacuum interrupter (4) links to each other, lower contact (3) are connected the upper end of taking electrically conductive rod-type mutual-inductor (2) insulating pull rod subassembly (10) one end with the upper end of taking electrically conductive rod-type mutual-inductor (2), the other end of insulating pull rod subassembly (10) with operating device (9) link to each other the upper end of taking electrically conductive rod-type mutual-inductor (2), operating device (9) are provided with real-time measuring device (4) are in vacuum interrupter (4) the inside, vacuum interrupter (1) has, the inside of the transformer (2) with the conducting rod is also provided with a voltage measurement module (12) for monitoring the internal voltage of the vacuum arc extinguishing chamber (4) in real time, the output end of the current measurement module (11) and the output end of the voltage measurement module (12) are connected with a data monitoring assembly (13) through cables, and the data monitoring assembly (13) is arranged on a vertical plate of the frame (1);
the vacuum arc extinguishing chamber (4) comprises an insulating shell (4.1), a moving contact (4.2) and a fixed contact (4.3), wherein the moving contact (4.2) and the fixed contact (4.3) are arranged inside the insulating shell (4.1), and when the vacuum arc extinguishing chamber is electrified, the lower end of the fixed contact (4.3) is contacted with and matched with the upper end of the moving contact (4.2);
the upper end of the fixed contact (4.3) is connected with one end of an outgoing line seat (7), the other end of the outgoing line seat (7) is connected with one end of an upper conducting rod (6), the other end of the upper conducting rod (6) is connected with the upper contact (5), the outgoing line seat (7) is connected with one end of an insulator (8), the other end of the insulator (8) is connected with a vertical plate of the frame (1), and the insulator (8) is arranged on the upper side of the insulating pull rod assembly (10);
the lower end of the moving contact (4.2) extends into the conductive rod type transformer (2), the side surface of the lower end of the moving contact is connected with one end of a lower conductive rod (14), the other end of the lower conductive rod (14) is connected with the lower contact (3), meanwhile, the end of the lower end of the moving contact (4.2) is connected with one end of a transmission component arranged in the conductive rod type transformer (2), the other end of the transmission component is connected with the end of an insulation pull rod component (10), and a cavity (15) for installing the transmission component is formed in the conductive rod type transformer (2);
the transmission assembly comprises a rotating shaft (17) and a rotating rod (16), the rotating shaft (17) is arranged on the inner wall of the cavity (15), a circular rotating hole (18) matched with the rotating shaft (17) is formed in the middle of the rotating rod (16), one end of the rotating rod (16) is hinged with the end part of the insulation pull rod assembly (10), a strip hole (19) is formed in the other end of the rotating rod (16), a cylindrical fixed shaft (20) is fixedly arranged at the lower end of the moving contact (4.2), and the fixed shaft (20) is matched with the strip hole (19);
a lantern ring (21) is fixedly arranged at the end part of the lower conductive rod (14), and the inner wall of the lantern ring (21) is matched with the outer wall of the moving contact (4.2);
a plurality of grooves (22) are formed in the side face of the lower end of the movable contact (4.2), and a plurality of protrusions (23) matched with the grooves (22) are formed in the inner wall of the lantern ring (21);
v-shaped grooves (24) which are matched with each other are formed in the contact surfaces of the movable contact (4.2) and the fixed contact (4.3);
the current measuring module (11) comprises a current iron core (25), a current input side winding coil (26) and a current output side winding coil (27), the current iron core (25) is a closed iron core, the current input side winding coil (26) and the current output side winding coil (27) are oppositely wound on the current iron core (25), the input end of the current input side winding coil (26) is connected to the movable contact (4.2), the output end of the current input side winding coil (26) is connected to the lower conducting rod (14), and the end parts at two ends of the current output side winding coil (27) are connected to the data monitoring assembly (13);
the voltage measurement module (12) comprises a voltage iron core (28), a voltage input side winding coil (29) and a voltage output side winding coil (30), wherein the voltage iron core (28) is a closed iron core, the voltage input side winding coil (29) and the voltage output side winding coil (30) are oppositely wound on the voltage iron core (28), the input end of the voltage input side winding coil (29) is connected to the movable contact (4.2), the output end of the voltage input side winding coil (29) is grounded, and the end parts at two ends of the voltage output side winding coil (30) are connected with the data monitoring assembly (13).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011548199.3A CN112735899B (en) | 2020-12-24 | 2020-12-24 | Intelligent circuit breaker |
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| CN202011548199.3A CN112735899B (en) | 2020-12-24 | 2020-12-24 | Intelligent circuit breaker |
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| CN112735899A CN112735899A (en) | 2021-04-30 |
| CN112735899B true CN112735899B (en) | 2023-07-14 |
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| CN113960399A (en) * | 2021-10-27 | 2022-01-21 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | Vacuum arc-extinguishing chamber test system for transformer on-load tap-changer and method thereof |
| CN116705560B (en) * | 2023-06-27 | 2024-03-22 | 电光防爆科技股份有限公司 | Breaker for mining explosion-proof equipment |
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| CN1610959A (en) * | 2001-12-28 | 2005-04-27 | Abb技术股份公司 | Circuit breakers with integrated current and/or voltage sensors |
| CN104124102A (en) * | 2014-06-28 | 2014-10-29 | 南京恒众机械有限公司 | Novel alternating-current high-voltage vacuum circuit breaker for electrified railway |
| CN204668232U (en) * | 2015-04-22 | 2015-09-23 | 浙江驰远电力科技有限公司 | A kind of insulated tube holder assembly for vacuum circuit-breaker |
| CN107017114A (en) * | 2017-05-24 | 2017-08-04 | 山东泰开成套电器有限公司 | A kind of indoor high-voltage intelligent vacuum circuit breaker |
| CN208173493U (en) * | 2018-06-15 | 2018-11-30 | 浙江瑞光真空电气有限公司 | A kind of modified vacuum interrupter being easily installed |
| EP3706151A1 (en) * | 2019-03-08 | 2020-09-09 | ALSTOM Transport Technologies | Circuit breaker with vacuum switch comprising a control system and railway vehicle comprising such a circuit breaker |
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| CN112735899A (en) | 2021-04-30 |
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