Primary and secondary deep integration complete set pole magnetic control circuit breaker

Abstract

The application discloses a primary and secondary deep fusion complete set of pole magnetic control circuit breaker with reduced failure rate, improved reliability, reduced installation difficulty and secondary control. The application comprises an automatic terminal device installed on a tower and a circuit breaker shell, three solid seal poles are arranged on the circuit breaker shell, a synchronous shaft assembly and three magnetic control mechanisms connected with the synchronous shaft assembly are arranged in the circuit breaker shell, the lower ends in the three solid seal poles are fixed in the three magnetic control mechanisms respectively, a connection and separation indication device connected with the synchronous shaft assembly is arranged at the outer end of the circuit breaker shell, a magnetic control device is arranged in the automatic terminal device, the magnetic control device is electrically connected with the three magnetic control mechanisms, a power taking capacitor is arranged in the solid seal pole, and the power taking capacitor is electrically connected with the automatic terminal device. The application is applied to the technical field of distribution network overhead line pole switches.

Description

Technical Field

[0001] This invention relates to a magnetically controlled circuit breaker, and more particularly to a fully integrated pole-mounted magnetically controlled circuit breaker with deep primary and secondary integration. Background Technology

[0002] The integrated primary and secondary circuit breaker system is a pole-mounted circuit breaker system that integrates industry-leading technologies such as voltage sensors, current sensors, energy metering modules, and high-speed fault transient recording. This system can achieve "adaptive integrated local automation" without relying on the distribution automation master station and communication. Through short-circuit / ground fault detection technology, no-voltage tripping, and fault path adaptive delayed power-on closing, it adapts to multi-branch, multi-tie distribution network structures to achieve local line selection, area location, and isolation of single-phase ground faults. Through two reclosing operations, it achieves fault area isolation and power restoration to non-fault areas, making it the preferred product for distribution automation.

[0003] Currently, the opening and closing mechanism used in pole-mounted circuit breakers is a spring mechanism. This mechanism has a large number of parts, and the multi-stage transmission of the spring mechanism can lead to abnormal problems such as jamming, resulting in a high failure rate and making the installation and debugging of the mechanism troublesome.

[0004] Currently, the automated terminal unit (FTU) of pole-mounted circuit breakers has high power consumption and can only be powered by an external voltage transformer. However, the external voltage transformer is large in size and difficult to install on the pole.

[0005] Currently, pole-mounted circuit breakers can only be controlled by opening and closing switches, lacking a secondary control component, resulting in a relatively simple opening and closing control function. Summary of the Invention

[0006] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a pole-mounted magnetic circuit breaker with a deep integration of primary and secondary control, which reduces the failure rate, improves reliability, reduces installation difficulty, and has secondary control.

[0007] The technical solution adopted in this invention is as follows: This invention includes an automated terminal device and a circuit breaker housing installed on a pole. The circuit breaker housing is provided with three solidified poles. Inside the circuit breaker housing, there is a synchronous shaft assembly and three magnetic control mechanisms, each connected to the synchronous shaft assembly. The lower ends of the three solidified poles are respectively fixed inside the three magnetic control mechanisms. The outer end of the circuit breaker housing is provided with an opening / closing indicator device connected to the synchronous shaft assembly. The automated terminal device has a built-in magnetic controller, which is electrically connected to the three magnetic control mechanisms. A power-collecting capacitor is solidified inside the solidified poles, and the power-collecting capacitor is electrically connected to the automated terminal device.

[0008] Furthermore, the solid-sealed pole includes a pole body, a vacuum interrupter, a conductive clamp, a flexible connector, a connector, an insulating pull rod, an adjusting head, a conductive rod, an inlet terminal, and an outlet terminal. The pole body has an inner cavity, the vacuum interrupter is installed at the upper end of the inner cavity, and the stationary end of the vacuum interrupter extends out of the inner cavity and is fixed to the top of the pole body by a nut. The inlet terminal is installed on the stationary end of the vacuum interrupter, and the moving end of the vacuum interrupter passes through the conductive clamp, which is fixed to the moving end of the vacuum interrupter by bolts. The flexible connector... One end of the flexible connector is connected to the conductive clamp, and the conductive rod is fixed to the outlet end of the pole body by a nut. The other end of the flexible connector is connected to one end of the conductive rod by a thread, and the other end of the conductive rod is connected to the outlet terminal. One end of the connector is connected to the moving end of the vacuum interrupter, and the other end of the connector passes through the flexible connector and is connected to the upper end of the insulating rod. The lower part of the insulating rod is fixed to the adjusting head by a thread, and the end of the insulating rod passes through the magnetic control mechanism and is fixed to the lower end of the magnetic control mechanism by a nut.

[0009] Furthermore, an installation plate is provided inside the circuit breaker housing, and the magnetic control mechanism is installed on the installation plate. The magnetic control mechanism includes a stationary iron core, a moving iron core, a closing / opening coil, a closing spring, an overtravel spring, and a fixing plate. The stationary iron core is installed on the installation plate, and the moving iron core is installed on the fixing plate. The fixing plate is connected to the synchronous shaft assembly. A magnetic control is provided inside the stationary iron core, and the closing / opening coil is wound around it. The closing spring is located between the stationary iron core and the moving iron core, and the overtravel spring is placed inside the closing spring. The end of the insulation adjustment rod passes through the installation plate, the stationary iron core, the closing spring, the moving iron core, and the fixing plate in sequence, and is fixed to the lower end of the fixing plate by a flange hexagonal nut. The adjustment head is used to adjust the stroke of the overtravel spring.

[0010] Furthermore, an electronic voltage sensor and an electronic current sensor are also encapsulated within the electrode body. The electronic current sensor is encapsulated on the output side of the electrode body, and the electronic voltage sensor is encapsulated on the input or output side of the electrode body. The power-collecting capacitor is encapsulated on the output side of the electrode body. This encapsulation completely isolates the electronic voltage sensor, electronic current sensor, and power-collecting capacitor from external moisture and corrosive environments, thereby increasing their service life.

[0011] Furthermore, the synchronous shaft assembly includes mounting sleeves installed on both sides inside the circuit breaker housing, each mounting sleeve having a bearing installed inside, and a synchronous shaft installed between two bearings. Fixing ears are provided on both sides of the lower end of the fixing plate, and a connecting piece is provided on the synchronous shaft to connect with the fixing ears. The connecting piece and the fixing ears are fixed together by a cylindrical pin.

[0012] Furthermore, the switching indicator device includes a switching indicator needle, a switching sleeve, a switching connecting shaft, a shift fork, and a switching connecting rod. The switching connecting shaft is fixed to the end face of the circuit breaker housing via the switching sleeve, and one end of the switching connecting shaft is connected to the switching indicator needle. The other end of the switching connecting shaft extends into the pole body and is connected to the shift fork. The switching connecting rod is connected to the synchronous shaft, and the end of the switching connecting rod is provided with a switching post located inside the shift fork.

[0013] Furthermore, an emergency tripping device is provided on the end face of the circuit breaker housing. The emergency tripping device includes a tripping handle, a tripping sleeve, a tripping coupling, a tripping link, and a return spring. The tripping coupling is fixed to the end face of the circuit breaker housing by the tripping sleeve, and one end of the tripping coupling is connected to the tripping handle. The other end of the tripping coupling extends into the pole body and is connected to one end of the return spring. The other end of the return spring is fixed to the end face of the circuit breaker housing by a pin. The tripping link is connected to the synchronous shaft, and the end of the tripping link is connected to the end of the tripping coupling.

[0014] Furthermore, auxiliary switch blocks are installed at both ends of the synchronous shaft. The two inner side walls of the circuit breaker housing are provided with auxiliary switches that are adapted to the auxiliary switch blocks. The synchronous shaft rotates clockwise or counterclockwise to drive the auxiliary switch blocks. The auxiliary switch blocks can press or not press the auxiliary switches. The output of the auxiliary switches is a dry contact signal.

[0015] Furthermore, the automated terminal device also has a built-in FTU controller and a backup power supply. The backup power supply is electrically connected to the FTU controller, which is used for remote control, telemetry, remote signaling, and fault detection functions. The magnetic controller includes a power management system, a main module, and a discharge circuit. The power management system has a charging management system, which is used for charging management and protection management. After charging is completed, the main module performs calculations based on external closing or opening commands and position signal inputs, and outputs closing or opening commands. The discharge circuit outputs voltage to control the opening and closing of the magnetic control mechanism.

[0016] Furthermore, the circuit breaker housing is made of stainless steel after bending and welding, the outer side of the circuit breaker housing is welded with lifting lugs, the two sides of the circuit breaker housing are welded with handles, and the inner side of the circuit breaker housing is provided with a sealing strip.

[0017] The beneficial effects of this invention are: 1. Using a magnetic control mechanism instead of a spring mechanism not only avoids abnormal problems such as mechanism jamming caused by multi-stage transmission of the spring mechanism and improves overall reliability, but also facilitates the perception of the equipment's operating status; 2. A power-taking capacitor is sealed inside the solid-sealed pole, and the power output of the power-taking capacitor can directly power the low-power automated terminal device, thereby avoiding the installation difficulty of installing a voltage transformer; 3. The automated terminal device has a built-in magnetic controller. After receiving the closing / opening command from the automated terminal device, the magnetic controller changes the electromagnetic field inside the magnetic control mechanism through the capacitor charging and discharging principle to realize the opening and closing action of the magnetic control mechanism, which can form a secondary control part. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the invention installed on a pole tower;

[0019] Figure 2 This is a schematic diagram of the circuit breaker housing.

[0020] Figure 3 This is a structural schematic diagram of an automated terminal device;

[0021] Figure 4 This is the front view of the circuit breaker housing after the outer casing has been opened;

[0022] Figure 5 It is a bottom view of the circuit breaker housing. Figure 1 ;

[0023] Figure 6 It is a bottom view of the circuit breaker housing. Figure 2 ;

[0024] Figure 7 This is a diagram showing the installation structure between the solid-sealed pole and the magnetic control mechanism;

[0025] Figure 8 This is a schematic diagram of a solid-sealed pole installed in the circuit breaker housing;

[0026] Figure 9 yes Figure 7 A sectional view along the AA direction;

[0027] Figure 10 yes Figure 8 Enlarged diagram of Part B;

[0028] Figure 11 yes Figure 9 Enlarged diagram of Part C;

[0029] Figure 12 This is a bottom view of the solid-sealed pole;

[0030] Figure 13 yes Figure 12 Cross-sectional view in the EE direction;

[0031] Figure 14 This is a cross-sectional view of the magnetic control mechanism;

[0032] Figure 15 This is the schematic diagram of the secondary control section. Detailed Implementation

[0033] like Figures 1 to 15 As shown, in this embodiment, the present invention includes an automated terminal device 2 and a circuit breaker housing 3 installed on a pole 1. The circuit breaker housing 3 has three solid-sealed poles 4, which are three-phase poles. Inside the circuit breaker housing 3 are a synchronous shaft assembly 5 and three magnetic control mechanisms 6, each connected to the synchronous shaft assembly 5. The lower ends of the three solid-sealed poles 4 are respectively fixed within the three magnetic control mechanisms 6. The outer end of the circuit breaker housing 3 is provided with an opening / closing indicator 7 connected to the synchronous shaft assembly 5. The automated terminal device 2 is built into... The device includes a magnetic controller, which is electrically connected to all three magnetic control mechanisms 6. A power-collecting capacitor 8 is sealed inside the solidified pole post 4 and is wired to the automated terminal device 2. In this example, the automated terminal device 2 used with the pole-mounted switch is a low-power terminal with a maximum power of no more than 6W. The power-collecting capacitor 8 can output 27V power (15W DC power). Therefore, the internal power-collecting capacitor 8 can directly power the automated terminal device 2 without the need for an additional voltage transformer, thus reducing the overall size and lowering the construction difficulty of the pole-mounted switch.

[0034] In this embodiment, the solid-sealed pole 4 includes a pole body 41, a vacuum interrupter 42, a conductive clamp 43, a flexible connector 44, a connector 45, an insulating pull rod 46, an adjusting head 47, a conductive rod 48, an inlet terminal 49, and an outlet terminal 410. The pole body 41 has an inner cavity 411. The vacuum interrupter 42 is installed at the upper end of the inner cavity 411, and the stationary end of the vacuum interrupter 42 extends out of the inner cavity 411 and is fixed to the top of the pole body 41 by a nut. The inlet terminal 49 is installed on the stationary end of the vacuum interrupter 42. The moving end of the vacuum interrupter 42 passes through the conductive clamp 43, and the conductive clamp 43 is fixed to the moving end of the vacuum interrupter 42 by bolts. One end of the flexible connector 44 is connected to the conductive clamp 43. The conductive rod 48 is connected to the conductive clamp 43 by bolts. The female is fixed to the outlet end of the pole body 41. The other end of the flexible connection 44 is connected to one end of the conductive rod 48 by a thread. The other end of the conductive rod 48 is connected to the outlet terminal 410. One end of the connector 45 is connected to the moving end of the vacuum interrupter 42. The other end of the connector 45 passes through the flexible connection 44 and is connected to the upper end of the insulating pull rod 46. The lower part of the insulating pull rod 46 is fixed to the adjusting head 47 by a thread. The end of the insulating pull rod 46 passes through the magnetic control mechanism 6 and is fixed to the lower end of the magnetic control mechanism 6 by a flange hexagonal nut 461. The insulating material used for the insulating pull rod 46 is nylon material. The creepage distance of the insulating pull rod 46 structure is designed to reach 249mm, which fully meets the air insulation performance requirements under the 10kV voltage level.

[0035] In this embodiment, a mounting plate 31 is provided inside the circuit breaker housing 3, and the magnetic control mechanisms 6 are all mounted on the mounting plate 31. This design facilitates later overall disassembly and assembly. The magnetic control mechanism 6 includes a stationary iron core 61, a moving iron core 62, a closing / opening coil 63, a opening spring 64, an overtravel spring 65, and a fixing plate 66. The entire magnetic control mechanism 6 has fewer parts, reducing the failure rate. The stationary iron core 61 is mounted on the mounting plate 31, and the moving iron core 62 is mounted on the fixing plate 66. The fixing plate 66 is connected to the synchronous shaft assembly 5. The stationary iron core 61 contains a magnetic control coil and is wound with the closing / opening coil. The coil 63 has a tripping spring 64 located between the stationary iron core 61 and the moving iron core 62, and an overtravel spring 65 placed inside the tripping spring 64. The end of the insulating pull rod 46 passes sequentially through the mounting plate 31, the stationary iron core 61, the tripping spring 64, the moving iron core 62, and the fixing plate 66, and is fixed to the lower end of the fixing plate 66 by a flange hexagonal nut 461. The adjusting head 47 extends into the tripping spring 64 and abuts against the overtravel spring 65. The adjusting head 47 can be adjusted to move downward, thereby adjusting the compression stroke of the overtravel spring 65 between the stationary iron core 61 and the moving iron core 62.

[0036] Furthermore, the distance between the upper end face of the adjusting head 47 on the adjusting rod 46 and the top surface of the circuit breaker housing 3 is L, which is the distance by which the adjusting head 47 presses down on the overtravel spring 65. This is mainly to ensure that the elastic force provided by the compression of the overtravel spring 65 inside the magnetic control mechanism 6 in the closed state matches the contact pressure of the vacuum interrupter 42. The three solid-sealed poles 4 are all assembled with the three magnetic control mechanisms 6 in the same way. Finally, the fixing plate 66 is installed on the upper part of the magnetic control mechanism, and the flange hexagonal nut 461 is screwed onto the end of the insulating rod 46 to ensure that the distance D between the lower end face of the flange hexagonal nut 461 and the upper end face of the fixing plate is D. This distance is the overtravel of the vacuum interrupter 42. Changing this distance can change the overtravel. Since the total stroke of the magnetic control mechanism 6 remains unchanged, changing the overtravel also changes the opening distance of the vacuum interrupter 42.

[0037] In this embodiment, an electronic voltage sensor 412 and an electronic current sensor 413 are also encapsulated within the electrode body 41. The electronic current sensor 413 is encapsulated and installed on the output side of the electrode body 41, and the electronic voltage sensor 412 is encapsulated and installed on either the input or output side of the electrode body 41. The power-taking capacitor 8 is encapsulated and installed on the output side of the electrode body 41. The secondary outputs of the electronic voltage sensor 412 and the electronic current sensor 413 are small analog signals used for measurement or protection. The power-taking capacitor 8 outputs a rated voltage of 27V and a rated power of [missing information]. The 15W sensor can directly power the low-power controller FTU. The electronic voltage sensor 412 has no iron core or contains a lightly loaded small iron core, so it will not saturate. It has a wide frequency response range, a large measurement range, and good linearity, which can reliably operate the protection device under system fault conditions. No overcurrent or ferroresonance will be generated when the secondary short circuit of the voltage output terminal occurs, eliminating major fault hazards in the operation of the power system and ensuring the safety of personnel and equipment. In addition, the electronic current sensor 412 has high-quality components, low temperature drift, and strong weather resistance. It has analog small signal output, low power consumption, and the load capacity meets the requirements of the automation terminal device 2.

[0038] In this embodiment, the synchronous shaft assembly 5 includes mounting sleeves 51 installed on both sides inside the circuit breaker housing 3. Each mounting sleeve 51 is equipped with a bearing 52. A synchronous shaft 53 is installed between two bearings 52. Fixing ears 661 are provided on both sides of the lower end of the fixing plate 66. A connecting piece 55 connected to the fixing ear 661 is provided on the synchronous shaft 53. The connecting piece 55 and the fixing ear 661 are fixed by a cylindrical pin 56. This design ensures that three-phase tripping can be performed simultaneously through the synchronous shaft 53 when the circuit breaker is tripped. Specifically, the synchronous shaft 53 rotates to drive the fixing ear 661 in the three magnetic control mechanisms 6 to move, thereby causing the fixing plate 66 to drive the moving iron core 62 to move downward, compressing the tripping spring 64 between the stationary iron core 61 and the moving iron core 62, and thus changing the electromagnetic field in the magnetic control mechanism 6 to realize the opening and closing action of the magnetic control mechanism.

[0039] In this embodiment, the break-in / break-out indicator device 7 includes a break-in / break-out indicator needle 71, a break-in / break-out bushing 72, a break-in / break-out connecting shaft 73, a shift fork 74, and a break-in / break-out connecting rod 75. The break-in / break-out connecting shaft 73 is fixed to the end face of the circuit breaker housing 3 through the break-in / break-out bushing 72, and one end of the break-in / break-out connecting shaft 73 is connected to the break-in / break-out indicator needle 71. The other end of the break-in / break-out connecting shaft 73 extends into the pole body 41 and is connected to the shift fork 74. The break-in / break-out connecting rod 75 is connected to the synchronous shaft 53, and the end of the break-in / break-out connecting rod 75 is provided with a break-in / break-out post 76 located in the shift fork 74.

[0040] In this embodiment, an emergency tripping device 9 is also provided on the end face of the circuit breaker housing 3. The emergency tripping device 9 includes a tripping handle 91, a tripping bushing 92, a tripping connecting shaft 93, a tripping connecting rod 94, and a return spring 95. The tripping connecting shaft 93 is fixed to the end face of the circuit breaker housing 3 through the tripping bushing 92, and one end of the tripping connecting shaft 93 is connected to the tripping handle 91. The other end of the tripping connecting shaft 93 extends into the pole body 41 and is connected to one end of the return spring 95. The other end of the return spring 95 is fixed to the end face of the circuit breaker housing 3 through a pin. The tripping connecting rod 94 is connected to the synchronous shaft 53, and the end of the tripping connecting rod 94 is connected to the end of the tripping connecting shaft 93. In case of emergency, simply pull down and rotate the tripping handle 91 clockwise to trip the magnetic control mechanism 6. After tripping, release the tripping handle 91 and return to the initial position via the return spring 95.

[0041] In this embodiment, auxiliary switch blocks 57 are also installed at both ends of the synchronous shaft 53. The two inner sidewalls of the circuit breaker housing 3 are provided with auxiliary switches 58 that are adapted to the auxiliary switch blocks 57. The synchronous shaft 53 rotates clockwise or counterclockwise to drive the auxiliary switch blocks 57. The auxiliary switch blocks 57 can press or not press the auxiliary switches 58. The output of the auxiliary switches 58 is a dry contact signal.

[0042] In this embodiment, the automated terminal device 2 also has a built-in FTU controller and a backup power supply. The power supply has two modes: external power supply and lithium battery power supply. The external power supply is converted into power for the FTU controller and the magnetic controller through the power-taking capacitor 8. The lithium battery power supply serves as the backup power supply. The backup power supply is electrically connected to the FTU controller. The FTU controller is used for remote control, telemetry, remote signaling, and fault detection functions. The magnetic controller includes a power management system, a main module, and a discharge circuit. The power management system has a charging management system. The charging management system is used for charging management and protection management. After charging is completed, the main module performs calculations based on external closing or opening commands and position signal inputs, and outputs closing or opening commands. The discharge circuit outputs voltage to change the electromagnetic field in the magnetic control mechanism 6 to realize the opening and closing action of the magnetic control mechanism.

[0043] In this embodiment, the circuit breaker housing 3 is made of stainless steel after bending and welding. The protection level of the circuit breaker housing 3 can reach IP67, which can absolutely protect the service life of the components installed inside the circuit breaker housing 3. The outer side of the circuit breaker housing 3 is welded with lifting lugs 32, the two sides of the circuit breaker housing 3 are welded with handles 33, and the inner side of the circuit breaker housing 3 is provided with a sealing strip.

[0044] This invention applies to the technical field of pole-mounted switches for overhead power lines in power distribution networks.

[0045] Although the embodiments of the present invention are described with reference to actual solutions, they do not constitute a limitation on the meaning of the present invention. Modifications to the embodiments and combinations with other solutions based on this specification will be obvious to those skilled in the art.

Claims

1. A primary and secondary deeply integrated pole-mounted magnetically controlled circuit breaker, characterized in that: It includes an automated terminal device (2) installed on a pole (1) and a circuit breaker housing (3). The circuit breaker housing (3) is provided with three solid-sealed poles (4). The circuit breaker housing (3) is provided with a synchronous shaft assembly (5) and three magnetic control mechanisms (6) connected to the synchronous shaft assembly (5). The lower ends of the three solid-sealed poles (4) are respectively fixed inside the three magnetic control mechanisms (6). The outer end of the circuit breaker housing (3) is provided with an opening and closing indicator device (7) connected to the synchronous shaft assembly (5). The automated terminal device (2) is equipped with a magnetic controller. The magnetic controller is electrically connected to the three magnetic control mechanisms (6). The solid-sealed poles (4) are sealed with a power-taking capacitor (8). The power-taking capacitor (8) is wired to the automated terminal device (2). The solid-sealed pole (4) includes a pole body (41), a vacuum interrupter (42), a conductive clamp (43), a flexible connector (44), a connector (45), an insulating pull rod (46), an adjusting head (47), a conductive rod (48), an inlet terminal (49), and an outlet terminal (410). The pole body (41) has an inner cavity (411). The vacuum interrupter (42) is installed at the upper end of the inner cavity (411), and the stationary end of the vacuum interrupter (42) passes through the inner cavity (411) and is fixed to the top of the pole body (41) by a nut. The inlet terminal (49) is installed on the stationary end of the vacuum interrupter (42). The moving end of the vacuum interrupter (42) passes through the conductive clamp (43), and the conductive clamp (43) is fixed to the vacuum interrupter (410) by bolts. 2) On the moving end, one end of the flexible connection (44) is connected to the conductive clamp (43), the conductive rod (48) is fixed to the outlet end of the pole body (41) by a nut, the other end of the flexible connection (44) is connected to one end of the conductive rod (48) by a thread, the other end of the conductive rod (48) is connected to the outlet terminal (410), one end of the connector (45) is connected to the moving end of the vacuum interrupter (42), the other end of the connector (45) passes through the flexible connection (44) and is connected to the upper end of the insulating pull rod (46), the lower part of the insulating pull rod (46) is fixed to the adjusting head (47) by a thread, and the end of the insulating pull rod (46) passes through the magnetic control mechanism (6) and is fixed to the lower end of the magnetic control mechanism (6) by a nut.

2. The primary and secondary deep integration complete pole-mounted magnetically controlled circuit breaker according to claim 1, characterized in that: An mounting plate (31) is provided inside the circuit breaker housing (3). All magnetic control mechanisms (6) are mounted on the mounting plate (31). Each magnetic control mechanism (6) includes a stationary iron core (61), a moving iron core (62), a closing / opening coil (63), a closing spring (64), an overtravel spring (65), and a fixing plate (66). The stationary iron core (61) is mounted on the mounting plate (31), and the moving iron core (62) is mounted on the fixing plate (66). The fixing plate (66) is connected to the synchronous shaft assembly (5). A magnetic control mechanism is provided inside the stationary iron core (61). The circuit breaker coil (63) is wound around the circuit breaker coil. The circuit breaker spring (64) is located between the stationary iron core (61) and the moving iron core (62). The overtravel spring (65) is placed inside the circuit breaker spring (64). The end of the insulating pull rod (46) passes through the mounting plate (31), the stationary iron core (61), the circuit breaker spring (64), the moving iron core (62) and the fixing plate (66) in sequence, and is fixed to the lower end of the fixing plate (66) by the flange hexagonal nut (461). The adjusting head (47) is used to adjust the stroke of the overtravel spring (65).

3. The primary and secondary deep integration complete pole-mounted magnetically controlled circuit breaker according to claim 1, characterized in that: An electronic voltage sensor (412) and an electronic current sensor (413) are also sealed inside the electrode body (41). The electronic current sensor (413) is sealed on the output side of the electrode body (41), the electronic voltage sensor (412) is sealed on the input or output side of the electrode body (41), and the power-taking capacitor (8) is sealed on the output side of the electrode body (41).

4. The primary and secondary deep integration complete pole-mounted magnetically controlled circuit breaker according to claim 2, characterized in that: The synchronous shaft assembly (5) includes mounting sleeves (51) installed on both sides inside the circuit breaker housing (3). Each mounting sleeve (51) is equipped with a bearing (52). A synchronous shaft (53) is installed between the two bearings (52). Fixing ears (661) are provided on both sides of the lower end of the fixing plate (66). A connecting piece (55) connected to the fixing ear (661) is provided on the synchronous shaft (53). The connecting piece (55) and the fixing ear (661) are fixed by a cylindrical pin (56).

5. The primary and secondary deep integration complete pole-mounted magnetically controlled circuit breaker according to claim 4, characterized in that: The opening and closing indicator device (7) includes an opening and closing indicator needle (71), an opening and closing bushing (72), an opening and closing connecting shaft (73), a shift fork (74), and an opening and closing connecting rod (75). The opening and closing connecting shaft (73) is fixed to the end face of the circuit breaker housing (3) through the opening and closing bushing (72), and one end of the opening and closing connecting shaft (73) is connected to the opening and closing indicator needle (71). The other end of the opening and closing connecting shaft (73) extends into the pole body (41) and is connected to the shift fork (74). The opening and closing connecting rod (75) is connected to the synchronous shaft (53), and the end of the opening and closing connecting rod (75) is provided with an opening and closing post (76) located in the shift fork (74).

6. The primary and secondary deep integration complete pole-mounted magnetically controlled circuit breaker according to claim 5, characterized in that: An emergency tripping device (9) is also provided on the end face of the circuit breaker housing (3). The emergency tripping device (9) includes a tripping handle (91), a tripping sleeve (92), a tripping connecting shaft (93), a tripping connecting rod (94), and a return spring (95). The tripping connecting shaft (93) is fixed to the end face of the circuit breaker housing (3) through the tripping sleeve (92), and one end of the tripping connecting shaft (93) is connected to the tripping handle (91). The other end of the tripping connecting shaft (93) extends into the pole body (41) and is connected to one end of the return spring (95). The other end of the return spring (95) is fixed to the end face of the circuit breaker housing (3) through a pin. The tripping connecting rod (94) is connected to the synchronous shaft (53), and the end of the tripping connecting rod (94) is connected to the end of the tripping connecting shaft (93).

7. The primary and secondary deep integration complete pole-mounted magnetically controlled circuit breaker according to claim 4, characterized in that: Auxiliary switch blocks (57) are also installed at both ends of the synchronous shaft (53). The two inner walls of the circuit breaker housing (3) are provided with auxiliary switches (58) that are adapted to the auxiliary switch blocks (57). The synchronous shaft (53) rotates clockwise or counterclockwise to drive the auxiliary switch blocks (57). The auxiliary switch blocks (57) can press or not press the auxiliary switches (58). The output of the auxiliary switches (58) is a dry contact signal.

8. The primary and secondary deep integration complete pole-mounted magnetically controlled circuit breaker according to claim 1, characterized in that: The automated terminal device (2) also has a built-in FTU controller and a backup power supply. The backup power supply is electrically connected to the FTU controller. The FTU controller is used for remote control, telemetry, remote signaling, and fault detection functions. The magnetic controller includes a power management system, a main module, and a discharge circuit. The power management system is equipped with a charging management system. The charging management system is used for charging management and protection management. After charging is completed, the main module performs calculations and outputs a closing or opening command through external closing or opening commands and position signal inputs. The discharge circuit outputs voltage to control the opening and closing of the magnetic control mechanism (6).

9. The primary and secondary deep integration complete pole-mounted magnetically controlled circuit breaker according to claim 1, characterized in that: The circuit breaker housing (3) is made of stainless steel after bending and welding. The outer side of the circuit breaker housing (3) is welded with a lifting lug (32), the two sides of the circuit breaker housing (3) are welded with handles (33), and the inner side of the circuit breaker housing (3) is provided with a sealing strip.

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