Primary and secondary fusion ring distribution network module
By designing air pressure monitoring and locking circuits and alarm indication circuits in the distribution network module, the shortcomings of traditional distribution network modules in air pressure monitoring and alarm are solved, real-time monitoring and automatic locking of air pressure conditions are achieved, and the reliability and safety of the module are improved.
Patent Information
- Application Number
- CN202520357084.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-04
- Publication Date
- 2025-04-25
- Estimated Expiration
- 2035-03-04
AI Technical Summary
Traditional distribution network modules lack accurate and real-time monitoring mechanisms in air pressure monitoring and alarm, and cannot take timely measures when air pressure is abnormal, which poses a risk of safety hazards and equipment damage.
A primary and secondary fusion ring distribution network module is designed, including power circuit, air pressure monitoring and locking circuit, alarm and locking indicator circuit, etc. The normally open point is locked through low air pressure locking relay and air pressure gauge to realize real-time monitoring and automatic locking of air pressure conditions, and timely alarm signals are issued.
Real-time monitoring and automatic alarm locking of the internal air pressure conditions of the distribution network module are realized, effectively preventing equipment damage or safety accidents caused by insufficient air pressure, and improving the reliability and operating efficiency of the distribution network module.
Smart Images

Figure CN222802600U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of power systems, in particular to a primary-secondary fusion ring distribution network module. Background Art
[0002] In the design of traditional distribution network modules, although multiple key components such as power supply circuit, control switch circuit, alarm and locking indication circuit have been covered to ensure the basic functions and safety performance of the distribution network module, however, with the continuous improvement of the reliability and safety requirements of the power system, the traditional distribution network module has gradually exposed some limitations in design, especially in terms of air pressure monitoring and alarm. Traditional distribution network modules often lack accurate and real-time air pressure monitoring mechanisms, as well as timely and effective alarm and locking functions when the air pressure is abnormal. Traditional distribution network modules usually rely on relatively simple mechanical barometers for air pressure monitoring. This type of barometer not only has inaccurate readings, but also cannot transmit air pressure data to the control system in real time, resulting in the inability to take quick measures when the air pressure is abnormal. In addition, traditional distribution network modules can often only be discovered through manual inspections when the air pressure is abnormal. This method is not only inefficient, but also has safety hazards. At the same time, traditional distribution network modules lack automatic locking functions when the air pressure is abnormal, and cannot effectively prevent equipment damage or accident expansion caused by insufficient air pressure. Utility Model Content
[0003] In view of this, the purpose of the present invention is to provide a highly integrated, fully functional, safe and reliable primary and secondary fusion ring distribution network module.
[0004] In order to achieve the above purpose, the utility model adopts such a primary and secondary fusion ring distribution network module, including a power supply circuit, an air pressure monitoring and locking circuit, an alarm and locking indication circuit, a control switch circuit, a closing control circuit, an opening control circuit, an anti-trip circuit, an energy storage circuit, and an indication circuit. The air pressure monitoring and locking circuit is used to monitor the air pressure condition inside the distribution network module, the alarm and locking indication circuit is used to detect an abnormal condition and send an alarm signal, the control switch circuit is used to close the circuit under specific conditions to achieve a control function, the closing control circuit is used to receive a closing command signal to complete the closing operation, the opening control circuit is responsible for processing the opening command to complete the opening operation, the anti-trip circuit is used to prevent the circuit breaker from oscillating when receiving rapidly alternating closing and opening commands, the energy storage circuit is used to control the start and stop of the DC motor, the indication circuit is used to provide a current status indication, and the power supply circuit is used to provide a stable DC48V DC power supply.
[0005] The utility model is further configured such that the power supply circuit includes the positive and negative electrodes of a DC power supply DC48, the air pressure monitoring and locking circuit includes a low pressure locking relay K6 and a barometer locking normally open point DQYBS used in conjunction with it, the alarm and locking indication circuit includes a low pressure alarm relay K7 and a barometer alarm normally open point DQYBJ used in conjunction with it, the positive electrode of the DC power supply DC48 is respectively connected to one end of the low pressure locking relay and one end of the low pressure alarm relay K7, the other end of the low pressure locking relay K6 is connected to one end of the barometer locking normally open point DQYBS to form a locking circuit, the other end of the low pressure alarm relay K7 is connected to one end of the barometer alarm normally open point DQYBJ to form an alarm circuit, and the other end of the barometer locking normally open point DQYBS and the other end of the barometer alarm normally open point DQYBJ are both connected to the negative electrode of the DC power supply DC48.
[0006] The utility model is further configured such that the control switch circuit includes a normally open contact Q1 and a normally open contact Q2, and the normally open contact Q1 and the normally open contact Q2 serve as control switches in the circuit.
[0007] The utility model is further configured such that a closing control circuit includes an HQJ relay, a normally open contact for controlling a closing operation, a local control switch, a remote control closing contact for receiving a remote control closing signal, a manual closing button, a protection closing contact for receiving a closing signal from a protection device, a remote control closing pressure plate for controlling a remote control closing function, a closing indicator light for displaying a closing status, and a circuit breaker closing position indicator for detecting a closing position of a circuit breaker, and also includes a closing holding relay, a circuit breaker closing coil and a low-pressure locking contact, wherein the low-pressure locking contact is used to prevent a closing operation when the air pressure is insufficient.
[0008] The utility model is further configured such that the opening control circuit includes a TQJ relay, a normally open contact for controlling the opening operation, a local control switch, a remote control opening contact for receiving a remote control opening signal, a manual opening button, a protection opening contact for receiving an opening signal issued by a protection device, a remote control opening pressure plate for controlling the remote control opening function, an opening indicator light for displaying the opening status, and a circuit breaker position indicator for detecting the opening position of the circuit breaker, and also includes an opening holding relay, a circuit breaker opening coil and a low-pressure locking contact, wherein the low-pressure locking contact is used to prevent the opening operation when the air pressure is insufficient.
[0009] The utility model is further configured such that an anti-tripping circuit includes an anti-tripping relay, a normally open contact, and a normally closed contact. When it is detected that the circuit breaker has a risk of tripping, the anti-tripping relay is activated, and the closing circuit is disconnected through the normally closed contact to prevent the circuit breaker from closing again and avoid tripping.
[0010] The utility model is further configured such that the energy storage circuit includes a DC motor, a circuit breaker no energy storage indication, and a circuit breaker energy storage indication. The DC motor is used to convert electrical energy into mechanical energy to accumulate energy required for closing the circuit breaker. The circuit breaker no energy storage is used to indicate that the energy storage process needs to be started or continued. The circuit breaker energy storage is used to indicate that the energy storage is completed and may trigger the closing operation of the circuit breaker. The energy storage circuit is connected to the negative pole of the DC power supply DC48 through the normally open contact Q2.
[0011] The utility model is further arranged that the local control switch is remotely connected to a remote control switch.
[0012] The utility model is further configured such that an indicating circuit comprises a closing indicating light and an opening indicating light, which are used to display the current state of the circuit breaker.
[0013] The utility model is further configured such that the module also includes an interval secondary module 32-core rectangular connector, an interval secondary module 16-core rectangular connector and a 32-core cable located inside the module, which are used to jointly constitute an electrical connection network inside the module, ensuring efficient transmission of signals between various circuits and providing a stable power supply.
[0014] The beneficial effects of the utility model are as follows: by highly integrating multiple functional modules such as power supply circuit, air pressure monitoring and locking circuit, alarm and locking indication circuit, control switch circuit, closing and opening control circuit, anti-tripping circuit, energy storage circuit and indication circuit, the utility model has comprehensive functions, effectively improving the reliability and operation efficiency of the distribution network module, and the low air pressure locking relay K6 and the barometer locking normally open point DQYBS, as well as the low air pressure alarm relay K7 and the barometer alarm normally open point DQYBJ, realize the real-time monitoring of the air pressure condition inside the distribution network module. Once the air pressure is abnormal, the alarm can be automatically triggered and the relevant Operation can effectively prevent equipment damage or safety accidents caused by insufficient air pressure. The anti-trip circuit design uses anti-trip relays and their normally open and normally closed contacts to respond quickly when the circuit breaker is detected to have a risk of tripping. By disconnecting the closing circuit, the circuit breaker is effectively prevented from closing again, thereby avoiding the occurrence of tripping. The remote control connection design of the local control switch and the remote control switch allows the operator to flexibly control the distribution network module away from the site. The energy storage circuit accumulates the energy required for closing the circuit breaker through a DC motor, and is equipped with non-energy stored and stored energy indications to ensure the visualization and controllability of the energy storage process. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a circuit diagram of the first embodiment of the utility model.
[0016] Figure 2 It is a circuit diagram from the uplink socket to the DTU of the interval secondary module remote signaling circuit of the first embodiment of the utility model.
[0017] Figure 3 It is a circuit diagram from the downlink wiring harness of the interval secondary module remote signaling circuit to the switch cabinet in the first embodiment of the utility model.
[0018] Figure 4 It is a circuit diagram of the second embodiment of the utility model.
[0019] Figure 5 It is a circuit diagram from the uplink socket to the DTU of the interval secondary module remote signaling circuit of the second embodiment of the utility model.
[0020] Figure 6 It is a circuit diagram from the downlink wiring harness of the interval secondary module remote signal circuit to the switch cabinet in the second embodiment of the utility model.
[0021] Figure 7 It is a pneumatic circuit diagram of the second embodiment of the utility model.
[0022] Figure 8 It is a current loop diagram of an embodiment of the utility model.
[0023] Fig. 9 It is a power supply circuit diagram of an embodiment of the utility model. DETAILED DESCRIPTION
[0024] like Figure 1-Figure 9 As shown, the first embodiment of the utility model provides a primary-secondary fusion ring distribution network module, including a power supply circuit, an air pressure monitoring and locking circuit, an alarm and locking indication circuit, a control switch circuit, a closing control circuit, an opening control circuit, an anti-trip circuit, an energy storage circuit, and an indication circuit. The air pressure monitoring and locking circuit is used to monitor the air pressure condition inside the distribution network module, the alarm and locking indication circuit is used to detect an abnormal condition and send an alarm signal, the control switch circuit is used to close the circuit under specific conditions to realize the control function, the closing control circuit is used to receive a closing command signal to complete the closing operation, and the opening control circuit is used to receive a closing command signal to complete the closing operation. It is responsible for processing the opening command to complete the opening operation. The anti-trip circuit is used to prevent the circuit breaker from oscillating when receiving rapidly alternating closing and opening commands. The energy storage circuit is used to control the start and stop of the DC motor. The indication circuit is used to provide the current status indication. The power supply circuit is used to provide a stable DC48V DC power supply, and also includes a 32-core rectangular connector for the interval secondary module, a 16-core rectangular connector for the interval secondary module and a 32-core cable located inside it, which are used to jointly constitute an electrical connection network inside the module, ensuring efficient transmission of signals between circuits and providing a stable power supply.
[0025] Specifically, the power supply DC48+ is connected to one end of the normally open contact Q1, one end of the low pressure locking relay K6 and one end of the low pressure alarm relay K7 through the ninth pin of the 32-core cable 32DZA, and the other end of the normally open contact Q1 is respectively connected to one end of the HQJ relay K4, one end of the normally open contact K1, one end of the TQJ relay K5 and one end of the normally open contact K2 (upper opening). In addition, the other end of the normally open contact Q1 is also connected in parallel to the local control switch SA1 and the local control switch SA5, as well as one end of the closing indicator light HR1 and the opening indicator light HG1 through the first pin of the 16-core rectangular connector 16DZ of the interval secondary module. At the same time, the other end of the normally open contact Q1 is also connected to one end of the protection closing contact HZ1 and one end of the protection opening contact FZ1 through the sixteenth pin of the 32-core cable 32DZA, and is also connected to the circuit breaker no energy storage indicator through the thirteenth pin of the 32-core rectangular connector 32DZ of the interval secondary module. It shows one end of WCN1, and the other end of the circuit breaker WCN1 without energy storage is connected to one end of the DC motor M, the other end of the DC motor M is connected to one end of the normally open contact Q2 through the fourteenth pin of the 32-core rectangular connector 32DZ of the interval secondary module, the other end of the low pressure lockout relay K6 is connected to one end of the barometer lockout normally open point DQYBS through the fourth pin of the 32-core rectangular connector 32DZ of the interval secondary module, the other end of the low pressure alarm relay K7 is connected to one end of the barometer alarm normally open point DQYBJ through the twenty-fourth pin of the 32-core rectangular connector 32DZ of the interval secondary module, the other end of the barometer lockout normally open point DQYBS is connected to the power supply DC48- through the fifth pin of the 32-core rectangular connector 32DZ of the interval secondary module, and the other end of the barometer alarm normally open point DQYBJ is connected to the power supply DC48- through the twenty-third pin of the 32-core rectangular connector 32DZ of the interval secondary module through the tenth pin of the 32-core cable 32DZA.
[0026] The other end of the closing indicator light HR1 is connected to one end of the circuit breaker closing position HW1 through the sixth pin of the 16-core rectangular connector 16DZ of the interval secondary module and the first pin of the 32-core rectangular connector 32DZ of the interval secondary module, and the other end of the opening indicator light HG1 is connected to one end of the circuit breaker opening position FW1 through the fifth pin of the 16-core rectangular connector 16DZ of the interval secondary module and the second pin of the 32-core rectangular connector 32DZ of the interval secondary module, the other end of the circuit breaker closing position HW1 is connected to the other end of the circuit breaker opening position FW1, and the other end of the circuit breaker opening position FW1 is connected to one end of the normally open contact Q2 through the third pin of the 32-core rectangular connector 32DZ of the interval secondary module.
[0027] The local control switch SA1 is remotely connected to establish the remote control switch SA2, and the local control switch SA5 is remotely connected to establish the remote control switch SA6. The remote control switch SA2 is connected to one end of the remote control closing contact KHZ1 and one end of the remote control opening contact KFZ1 through the second pin of the 16-core rectangular connector 16DZ of the interval secondary module and the thirteenth pin of the 32-core cable 32DZA respectively. The remote control switch SA6 acts as a double-throw switch, one end of which is connected to one end of the manual closing button SB2, and the other end is connected to one end of the manual opening button SB1. The other end of the manual closing button SB2 is connected to the other end of the remote control closing contact KHZ1 through the third pin of the 16-core rectangular connector 16DZ of the interval secondary module, and the other end of the manual closing button SB1 is connected to the tenth pin of the 32-core cable 32DZA through the fourth pin of the 16-core rectangular connector 16DZ of the interval secondary module. The other end of the two-pin remote control opening contact KFZ1 and the other end of the remote control closing contact KHZ1 are also connected to one end of the ninth pin of the remote control closing pressure plate YHCZ1 of the 16-core rectangular connector 16DZ of the interval secondary module through the eleventh pin of the 32-core cable 32DZA, the other end of the remote control opening contact KFZ1 is also connected to one end of the eleventh pin of the remote control opening pressure plate YFCZ1 of the 16-core rectangular connector 16DZ of the interval secondary module through the twelfth pin of the 32-core cable 32DZA, the other end of the protection closing contact HZ1 is connected to one end of the protection closing pressure plate DHCZ1 of the thirteenth pin of the 16-core rectangular connector 16DZ of the interval secondary module through the fourteenth pin of the 32-core cable 32DZA, and the other end of the protection opening contact FZ1 is connected to one end of the protection opening pressure plate DFCZ1 of the fifteenth pin of the 16-core rectangular connector 16DZ of the interval secondary module through the fifteenth pin of the 32-core cable 32DZA.
[0028] The other end of the normally open contact K1 is respectively connected to one end of the normally open contact K2 (lower opening), one end of the normally open contact K3, one end of the normally closed contact K3 and the other end of the remote control closing pressure plate YHCZ1 through the tenth pin of the 16-core rectangular connector 16DZ of the interval secondary module, and is also connected to the other end of the protection closing pressure plate DHCZ1 through the fourteenth pin of the 16-core rectangular connector 16DZ. The other end of the normally closed contact K3 is respectively connected to the other end of the HQJ relay K4 and one end of the circuit breaker position FW2 through the eighth pin of the 32-core rectangular connector 32DZ of the interval secondary module. The circuit breaker is divided The other end of the position FW2 is connected to one end of the disconnector in the closed position GKW1, the other end of the disconnector in the closed position GKW1 is connected to one end of the circuit breaker energy storage indication CN1, the other end of the circuit breaker energy storage CN1 is connected to one end of the closing holding relay K1 through the ninth pin of the 32-core rectangular connector 32DZ of the interval secondary module, the other end of the closing holding relay K1 is connected to one end of the circuit breaker closing coil HQ1 through the tenth pin of the 32-core rectangular connector 32DZ of the interval secondary module, the other end of the normally open contact K2 (opening on the top) is connected to the other end of the TQJ relay K5 and the other end of the normally open contact K2 (opening on the top) through the interval secondary module. The other end of the protection opening pressure plate DFCZ1 of the sixteenth pin of the 16-core rectangular connector 16DZ, the other end of the remote control opening pressure plate YFCZ1 of the twelfth pin of the 16-core rectangular connector 16DZ of the interval secondary module, and one end of the circuit breaker closing position HW2 of the sixth pin of the 32-core rectangular connector 32DZ of the interval secondary module, the other end of the circuit breaker closing position HW2 is connected to one end of the opening holding relay K2 through the seventh pin of the 32-core rectangular connector 32DZ of the interval secondary module, and the other end of the opening holding relay K2 is connected to the eleventh pin of the 32-core rectangular connector 32DZ of the interval secondary module. One end of the circuit breaker tripping coil TQ1 is connected, the other end of the circuit breaker tripping coil TQ1 and the other end of the circuit breaker closing coil HQ1 are connected to one end of the low-pressure locking contact K6 through the twelfth pin of the 32-core rectangular connector 32DZ of the interval secondary module, the other end of the normally open contact K2 (lower opening) and the other end of the normally open contact K3 are connected to one end of the anti-tripping relay K3, the other end of the low-pressure locking contact K6 and the other end of the tripping relay K3 are connected to one end of the normally open contact Q2, and the other end of the normally open contact Q2 is connected to the power supply DC48- through the tenth pin of the 32-core cable 32DZA.
[0029] A special uplink socket is designed on the upper part of the module. The main function of this socket is to make an electrical connection with the data terminal unit (DTU). Through a special communication cable, the uplink socket is closely connected to the DTU, realizing the uplink transmission of data and ensuring that the module status information, alarm signals and control commands can be accurately transmitted to the DTU. At the bottom of the module, a downlink harness is equipped. This harness is specifically used for electrical connection with the switch cabinet. The downlink harness contains multiple power lines and control lines, which are responsible for providing the necessary power and control signals to the switch cabinet. This design not only ensures a stable connection between the module and the switch cabinet, but also realizes remote control and status monitoring of the switch cabinet. It also specifically includes a current loop diagram and a power loop diagram, which show the electrical connection and signal transmission path inside the module.
[0030] The above is a solution of the specific embodiment 1 of the utility model. In addition, in addition to the solution of the above embodiment 1, the utility model also includes a specific embodiment, which is as follows:
[0031] The second specific embodiment of the present invention provides a primary-secondary fusion ring distribution network module, which is similar to the first specific embodiment in circuit structure.
[0032] Specifically, the two ends of the barometer alarm normally open point DQYBJ are changed from the interval secondary module 32-core rectangular connector to the plug-in terminal 20DZ, and 32-core rectangular connectors are added at both ends of the low pressure locking contact K6.
[0033] Despite the above changes, the module in Example 2 still needs to maintain a circuit structure similar to that of Example 1, including an upstream line socket, a downstream wiring harness, and related current loop diagrams, power loop diagrams, and air pressure loop diagrams, wherein the air pressure loop diagram includes extended normally closed points for low pressure lock output and low pressure alarm output, as well as external wiring.
[0034] Of course, in addition to the above-mentioned embodiments, the utility model may also have many other embodiments. Without departing from the essential technical solution content of the utility model, technical personnel familiar with the field may make various corresponding changes and deformations according to the utility model, and these changes or deformations are equivalent to the technical solution in this patent. Then these corresponding changes and deformations should all fall within the scope of protection of the claims attached to the utility model, and the utility model creation is in line with the applicant's actual R&D capabilities and resource conditions.
Claims
1. A primary and secondary fusion ring distribution network module, characterized by: It includes a power supply circuit, an air pressure monitoring and locking circuit, an alarm and locking indication circuit, a control switch circuit, a closing control circuit, an opening control circuit, an anti-tripping circuit, an energy storage circuit, and an indication circuit. The air pressure monitoring and locking circuit is used to monitor the air pressure condition inside the distribution network module. The alarm and locking indication circuit is used to detect an abnormal condition and send an alarm signal. The control switch circuit is used to close the circuit to realize the control function. The closing control circuit is used to receive a closing command signal to complete the closing operation. The opening control circuit is responsible for processing the opening command to complete the opening operation. The anti-tripping circuit is used to prevent the circuit breaker from oscillating when receiving rapidly alternating closing and opening commands. The energy storage circuit is used to control the start and stop of the DC motor. The indication circuit is used to provide a current status indication. The power supply circuit is used to provide a stable DC48V DC power supply.
2. The primary and secondary fusion ring distribution network module according to claim 1 is characterized in that: The power supply circuit includes the positive and negative electrodes of a DC power supply DC48, the air pressure monitoring and locking circuit includes a low pressure locking relay K6 and a barometer locking normally open point DQYBS used in conjunction with it, the alarm and locking indication circuit includes a low pressure alarm relay K7 and a barometer alarm normally open point DQYBJ used in conjunction with it, the positive electrode of the DC power supply DC48 is respectively connected to one end of the low pressure locking relay and one end of the low pressure alarm relay K7, the other end of the low pressure locking relay K6 is connected to one end of the barometer locking normally open point DQYBS to form a locking circuit, the other end of the low pressure alarm relay K7 is connected to one end of the barometer alarm normally open point DQYBJ to form an alarm circuit, and the other end of the barometer locking normally open point DQYBS and the other end of the barometer alarm normally open point DQYBJ are both connected to the negative electrode of the DC power supply DC48.
3. The primary and secondary fusion ring distribution network module according to claim 1 or 2, characterized in that: The control switch circuit includes a normally open contact Q1 and a normally open contact Q2, and the normally open contact Q1 and the normally open contact Q2 serve as control switches in the circuit.
4. The primary and secondary fusion ring distribution network module according to claim 3 is characterized in that: The closing control circuit includes an HQJ relay, a normally open contact for controlling the closing operation, a local control switch, a remote control closing contact for receiving a remote control closing signal, a manual closing button, a protection closing contact for receiving a closing signal sent by a protection device, a remote control closing pressure plate for controlling the remote control closing function, a closing indicator light for displaying the closing status, and a circuit breaker closing position indicator for detecting the closing position of the circuit breaker, and also includes a closing holding relay, a circuit breaker closing coil and a low-pressure locking contact, wherein the low-pressure locking contact is used to prevent the closing operation when the air pressure is insufficient.
5. The primary and secondary fusion ring distribution network module according to claim 3 is characterized in that: The opening control circuit includes a TQJ relay, a normally open contact for controlling the opening operation, a local control switch, a remote control opening contact for receiving a remote control opening signal, a manual opening button, a protective opening contact for receiving an opening signal issued by a protection device, a remote control opening pressure plate for controlling the remote control opening function, an opening indicator light for displaying the opening status, and a circuit breaker position indicator for detecting the opening position of the circuit breaker, and also includes an opening holding relay, a circuit breaker opening coil and a low-pressure locking contact, wherein the low-pressure locking contact is used to prevent the opening operation when the air pressure is insufficient.
6. The primary and secondary fusion ring distribution network module according to claim 4 or 5, characterized in that: The anti-tripping circuit includes an anti-tripping relay, a normally open contact, and a normally closed contact. When it is detected that the circuit breaker has a risk of tripping, the anti-tripping relay is activated and the closing circuit is disconnected through the normally closed contact to prevent the circuit breaker from closing again and avoid tripping.
7. The primary and secondary fusion ring distribution network module according to claim 6 is characterized in that: The energy storage circuit includes a DC motor, a circuit breaker no energy storage indication, and a circuit breaker energy storage indication. The DC motor is used to convert electrical energy into mechanical energy to accumulate energy required for closing the circuit breaker. The circuit breaker no energy storage is used to indicate that the energy storage process needs to be started or continued. The circuit breaker has energy storage is used to indicate that the energy storage has been completed and may trigger the closing operation of the circuit breaker. The energy storage circuit is connected to the negative pole of the DC power supply DC48 through the normally open contact Q2.
8. The primary and secondary fusion ring distribution network module according to claim 6 is characterized by: The local control switch is remotely connected to a remote control switch.
9. The primary and secondary fusion ring distribution network module according to claim 1, characterized in that: The indicator circuit includes a closing indicator light and an opening indicator light, which are used to display the current state of the circuit breaker.
10. The primary and secondary fusion ring distribution network module according to claim 1, characterized in that: The module also includes an interval secondary module 32-core rectangular connector, an interval secondary module 16-core rectangular connector and a 32-core cable located inside the module, which are used to jointly form an electrical connection network inside the module.