Intelligent circuit breaker service life test bench

Through the design of an intelligent circuit breaker life test bench, the use of aviation socket modules and PLC controllers has achieved efficient, simple and flexible circuit breaker life testing, solving the problems of long testing time, complex operation and poor adaptability of existing test benches, and providing a lightweight, safe and low-cost testing solution.

CN223377449UActive Publication Date: 2025-09-23JIANGSU DAQUAN HIGH VOLTAGE SWITCH CO LTD
View PDF 1 Cites 0 Cited by

Patent Information

Application Number
CN202422094559.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-27
Publication Date
2025-09-23
Estimated Expiration
2034-08-27

AI Technical Summary

Technical Problem

The existing circuit breaker life test bench has the problems of long testing time, complex operation, inconvenience in mobility and adaptation to different models of circuit breakers, and inability to be flexibly applied to changing scenarios.

Method used

An intelligent circuit breaker life test bench was designed. It uses aviation socket modules for universal adaptation and combines PLC controllers and counters for automated testing. It integrates power input modules, comprehensive function modules, and control button modules to achieve a test solution with a compact structure and easy installation and maintenance.

Benefits of technology

It realizes the efficiency, simplicity and flexibility of circuit breaker life test, adapts to different types of circuit breakers, shortens test time, simplifies operation, and the equipment is lightweight, safe, low-cost, and suitable for changing scenarios.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223377449U_ABST
    Figure CN223377449U_ABST
Patent Text Reader

Abstract

The utility model provides an intelligent circuit breaker service life test bench. According to the intelligent circuit breaker service life testboard, a universal aviation socket is fixed on the testboard, power is transmitted to a miniature circuit breaker through an AC socket and a power supply, the miniature circuit breaker transmits the power supply to a 24V power supply module, the power supply module supplies power to a PLC LOGO, and meanwhile the miniature circuit breaker outputs the power supply to a closing and opening control circuit. According to the technical scheme of the utility model, the counter is used for counting, and output models generated in the testing process of the circuit breaker are counted through an output program of the PLC. According to the technical scheme, the service life test bench is simple and compact in overall structure, easy to install and maintain, high in reliability and capable of being adjusted according to requirements; the service life test bench adopts lightweight electric appliance elements, and has the advantages of high safety, low cost and high overall stability. The overall size of the service life test bench is only 300 * 300mm, the structure is compact, and the transmission is stable.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The utility model belongs to the field of power distribution equipment and relates to an intelligent circuit breaker life test bench. Background Art

[0002] Circuit breakers are crucial control and protection equipment in the field of medium and high voltage power transmission and distribution. Vacuum circuit breakers are suitable for applications where they are frequently operated at rated operating current or repeatedly interrupt short-circuit currents. During the development and trial production of circuit breakers, their operating mechanisms must undergo life verification. Existing circuit breaker life test benches primarily offer two types of solutions:

[0003] The first solution is to set up a life test room on the production line. The life test room is integrated with the intelligent production line, and the circuit breakers produced on the production line enter the life test room for aging testing. CN202122897136.5 provides an intelligent reclosing circuit breaker life test device. Usually, this type of solution is mainly suitable for factory testing of circuit breakers in contracts. Each aging test can only be operated 200 times and then stop. In this way, the number of tests needs to be followed up at all times for a complete life test, which greatly increases the time for the circuit breaker life test, and life tests cannot be performed on some special new products.

[0004] The second solution is to install a separate life test bench off the production line. This test bench has complex circuitry and involves many tedious operating procedures. The test process requires different procedures for different products, and personnel must change relevant parameters according to the circuit breaker model specifications. This operating table requires high operator skills, cannot achieve a unified procedure for life verification, and cannot change internal parameter settings. Furthermore, the life test bench is large and difficult to move to other locations, making it unsuitable for flexible and changeable scenarios. Utility Model Content

[0005] In order to make up for the shortcomings of the existing technology, the utility model provides an intelligent circuit breaker life test bench.

[0006] An intelligent circuit breaker life test bench includes a mounting base, a power input module, and a counter module. The intelligent circuit breaker life test bench also includes a comprehensive function module, an aviation socket module, and a control button assembly module.

[0007] The integrated function module includes a circuit breaker, a power module, a PLC controller, a rectifier bridge and an integrated function module mounting plate; the circuit breaker, power module, PLC controller and rectifier bridge are arranged on the mounting base plate through the integrated function module mounting plate;

[0008] The aviation socket module includes a circuit breaker aviation plug and an aviation socket module mounting plate; the circuit breaker aviation plug is arranged on the mounting base through the aviation socket module mounting plate;

[0009] The control button assembly module includes an opening button, a closing button, a reset button, a manual and automatic knob, and a control button assembly module mounting plate; the opening button, the closing button, the reset button, and the manual and automatic knob are arranged on the mounting base through the control button assembly module mounting plate;

[0010] The power input module, the counter module, the comprehensive function module, the aviation socket module and the control button assembly module are connected via a life detection control loop.

[0011] The life detection control circuit includes a closing control circuit, an opening control circuit, a counter control circuit and a control circuit of a PLC controller;

[0012] The number of the circuit breakers is 2;

[0013] The number of the rectifier bridges is 2;

[0014] The number of the circuit breaker aerial plugs is 3.

[0015] The closing control circuit includes an AC socket, a circuit breaker 1, a circuit breaker 2, a rectifier bridge 1, a closing button, a PLC controller, and a circuit breaker aviation socket 1;

[0016] The rectifier bridge 1 includes B6, B8, B9, and B10 interfaces;

[0017] One end of the circuit breaker 1 is connected to the positive pole of the AC socket, and the other end is connected to the B10 interface of the rectifier bridge 1;

[0018] One end of the circuit breaker 2 is connected to the negative pole of the AC socket, and the other end is connected to the B6 interface of the rectifier bridge 1;

[0019] The B9 interface of the rectifier bridge 1 is connected to one end of the closing button and one end of the PLC controller;

[0020] One end of the circuit breaker aviation plug 1 is connected to the other end of the closing button and the other end of the PLC controller;

[0021] The other end of the circuit breaker aerial plug 1 is connected to B8 of the rectifier bridge 1 .

[0022] The trip control circuit includes an AC socket, a circuit breaker 1, a circuit breaker 2, a rectifier bridge 2, a trip button, a PLC controller, and a circuit breaker aerial socket 2;

[0023] The rectifier bridge 2 includes B6, B8, B9, and B10 interfaces;

[0024] One end of the circuit breaker 1 is connected to the positive pole of the AC socket, and the other end is connected to the B10 interface of the rectifier bridge 2;

[0025] One end of the circuit breaker 2 is connected to the negative pole of the AC socket, and the other end is connected to the B6 interface of the rectifier bridge 2;

[0026] The B9 interface of the rectifier bridge 2 is connected to one end of the closing button and one end of the PLC controller;

[0027] One end of the circuit breaker aviation plug 2 is connected to the other end of the closing button and the other end of the PLC controller;

[0028] The other end of the circuit breaker aerial plug 2 is connected to B8 of the rectifier bridge 2 .

[0029] The counter control circuit includes an AC socket, a circuit breaker 1, a circuit breaker 2, and a counter module;

[0030] One end of the circuit breaker 1 is connected to the positive pole of the AC socket, and the other end is connected to the positive pole of the counter;

[0031] One end of the circuit breaker 2 is connected to the negative pole of the AC socket, and the other end is connected to the negative pole of the counter.

[0032] The control circuit of the PLC controller includes an AC socket, a circuit breaker 1, a circuit breaker 2, a power module, a PLC controller, a manual / automatic knob, a reset button, and a circuit breaker aviation socket 3;

[0033] The power module has an L line inlet, an N line inlet, a positive electrode inlet and a negative electrode inlet;

[0034] The PLC controller has an L+ interface and an M interface;

[0035] One end of the circuit breaker 1 is connected to the positive pole of the AC socket, and the other end is connected to the L line inlet of the power module;

[0036] One end of the circuit breaker 2 is connected to the negative pole of the AC socket, and the other end is connected to the N line inlet of the power module;

[0037] The PLC controller is connected in series with the power module. + The interface is connected to the positive terminal of the power module, and the M interface of the PLC controller is connected to the negative terminal of the power module;

[0038] A manual / automatic knob, a reset button and a circuit breaker aviation plug 3 are connected in parallel between the PLC controller and the power module.

[0039] The output current of the power input module is 220V AC; the power module can convert the input 220V AC into the output 24V DC.

[0040] The aviation socket module mounting plate is provided with a replaceable mounting portion that can adapt to a corresponding circuit breaker aviation plug; the circuit breaker aviation plug is mounted on the aviation socket module mounting plate via the mounting portion. The aviation socket module mounting plate can be replaced with a mounting portion according to different circuit breaker aviation plugs to adapt to different circuit breaker solutions.

[0041] The control button assembly module also includes a grounding device.

[0042] The circuit breaker adopts an air switch type miniature circuit breaker.

[0043] It should be noted that, considering that the embodiments need to more clearly and completely illustrate the technical solution, the names of the components in the embodiments may not be completely consistent with those in the aforementioned technical solution; in addition, any inconsistencies with the embodiments are also explained here:

[0044] The aforementioned mounting base is named as base plate in the embodiment;

[0045] The aforementioned power input module and counter module are of conventional design, as long as they can achieve the corresponding effects of the aforementioned technical solutions. In this embodiment, the power input module and counter module are selected within the scope of the aforementioned technical solutions.

[0046] The aforementioned integrated function module is named as a guide rail mounting module in the embodiment; the aforementioned integrated function module mounting plate is named as a guide rail in the embodiment;

[0047] The aforementioned aviation socket module mounting plate is named as aviation socket fixing plate in the embodiment;

[0048] The aforementioned circuit breaker 1 and circuit breaker 2 are named as circuit breaker F1 and circuit breaker F2 in the embodiment;

[0049] The aforementioned circuit breaker aerial plug 1, circuit breaker aerial plug 2, and circuit breaker aerial plug 3 are named circuit breaker aerial plug X1, circuit breaker aerial plug X2, and circuit breaker aerial plug X0 in the embodiment;

[0050] The aforementioned rectifier bridge 1 and rectifier bridge 2 are named rectifier bridge V1 and rectifier bridge V2 in the embodiment.

[0051] Beneficial effects

[0052] This utility model provides an intelligent circuit breaker life test bench. The intelligent circuit breaker life test bench utilizes a universal aviation socket fixed to the test bench. Power is transmitted to a miniature circuit breaker via the AC socket. The miniature circuit breaker transmits power to a 24V power module, which supplies power to the PLC controller LOGO. Simultaneously, the miniature circuit breaker outputs power to the closing and opening control circuits. The technical solution of this utility model utilizes a counter to count the output models generated during the circuit breaker test, using a PLC controller output program.

[0053] The life test bench described in the technical solution of the utility model has a simple and compact overall structure, is easy to install and maintain, has high reliability, and can also be adjusted according to needs; the life test bench adopts lightweight electrical components, has the advantages of high safety, low cost and strong overall stability; the overall size of the life test bench is only 300*300mm, with a compact structure and smooth transmission. BRIEF DESCRIPTION OF THE DRAWINGS

[0054] Figure 1 A schematic diagram of the overall structural components of an intelligent circuit breaker life test bench provided by the present invention;

[0055] Figure 2 This is a schematic diagram of the components of an intelligent circuit breaker life test bench provided by the utility model;

[0056] Figure 3 This is a schematic diagram of a closing control circuit of an intelligent circuit breaker life test bench provided by the utility model;

[0057] Figure 4 This is a schematic diagram of a trip control circuit of an intelligent circuit breaker life test bench provided by the utility model;

[0058] Figure 5 This is a schematic diagram of a counter control circuit of an intelligent circuit breaker life test bench provided by the present invention;

[0059] Figure 6 This is a schematic diagram of a PLC controller control circuit of an intelligent circuit breaker life test bench provided by the utility model;

[0060] Figure 7 This is a schematic diagram of a PLC controller A1-X10 and a PLC controller A1-X11 of an intelligent circuit breaker life test bench provided by the utility model.

[0061] in, Figures 1-2 Description of the mark:

[0062] 1 is the bottom plate;

[0063] 2 is the power input module; 21 is the socket mounting plate; 22 is the AC socket;

[0064] 3 is a guide rail installation module; 31 is a miniature circuit breaker; 32 is a power supply module; 33 is a PLC controller; 34 is a guide rail; the installation module also includes a rectifier bridge, which is not in the Figures 1-2 Marking on

[0065] 4 is an aviation socket module; 4-1 is an aviation socket fixing plate; the aviation circuit breaker module also includes a circuit breaker aviation plug, which is not in Figures 1-2 Marking on

[0066] 5 is a counter module; 51 is a counter; 52 is a counter mounting plate;

[0067] 6 is the control button assembly module; 61 is the control button assembly module mounting plate; 62 is the opening button; 63 is the closing button; 64 is the reset button; 65 is the manual-automatic knob.

[0068] Figures 3 to 7 The electrical symbols are:

[0069] The AC socket, marked as 220VAC in the figure, has an L wire and an N wire;

[0070] Miniature circuit breaker F1, having interface 3 and interface 4;

[0071] Miniature circuit breaker F2, having interface 1 and interface 2;

[0072] Rectifier bridge V1, with interfaces B6, B8, B9, B10;

[0073] Rectifier bridge V2, with interfaces B6, B8, B9, B10;

[0074] Closing button S2, with interface 13 and interface 14;

[0075] The trip button S3 has interfaces 13 and 14;

[0076] PLC controller A1-X11, with interfaces Q1-1, Q1-2, Q2-1, Q2-2;

[0077] Circuit breaker aerial plug X1, with interface 14 and interface 4;

[0078] Circuit breaker aerial plug X2, with interface 30 and interface 31;

[0079] Counter JDM9-4;

[0080] The power module T1, labeled T1 and AC220V / DC24V in the figure, has an L line input, an N line input, a positive terminal output +V, and a negative terminal output -V;

[0081] Manual automatic knob SA1, with interface 23, interface 24, interface 13, interface 14;

[0082] Reset button S1, with interface 13 and interface 14;

[0083] Circuit breaker aerial plug X0, with interface 3, interface 13, interface 8, interface 18;

[0084] The PLC controller A1-X10 has an interface L+, an interface M, an interface I1, an interface I2, an interface I3, an interface I5, and an interface I6; the PLC controller A1-X10 is also provided with a grounding device GND. DETAILED DESCRIPTION

[0085] Example

[0086] The following combination Figures 1-2 The components of the intelligent circuit breaker life test station and the connection relationship between each component are explained and introduced.

[0087] 1. Introduction to the components of the intelligent circuit breaker life test bench

[0088] An intelligent circuit breaker life test bench includes a base plate 1, a power input module 2, a guide rail mounting module 3, an aviation socket module 4, a counter module 5, and a control button assembly module 6;

[0089] The power input module 2 includes a socket mounting plate 21 and an AC socket 22;

[0090] The guide rail mounting module 3 includes a miniature circuit breaker 31, a power module 32, a PLC controller 33, a guide rail 34, a rectifier bridge (not shown) Figures 1-2 Marking is only done on the control circuit part);

[0091] The aviation socket module 4 includes an aviation socket fixing plate 4-1 and a circuit breaker aviation plug (the circuit breaker aviation plug can select different parameters to meet the requirements of different control circuits, not shown in the figure). Figures 1-2 Marking is only done on the control loop part);

[0092] The counter module 5 includes a counter 51 and a counter mounting plate 52;

[0093] The control button assembly module 6 includes a control button assembly module mounting plate 61 , an opening button 62 , a closing button 63 , a reset button 64 and a manual / automatic knob 65 .

[0094] 2. Introduction to the connection methods of the components of the intelligent circuit breaker life test station

[0095] The base plate 1 is used as the main fixed base;

[0096] Fix the socket mounting plate 21 to the base plate 1 with screws, and then fix the AC socket 22 to the socket mounting plate 21 with screws;

[0097] Install the miniature circuit breaker 31, power module 32, and PLC controller 33 on the guide rail 34 to obtain an integrated guide rail mounting module 3, connect the rectifier bridge to the corresponding control circuit, and then fix the integrated guide rail module 3 to the base plate 1 with screws;

[0098] The aviation socket fixing plate 4 is fixed to the base plate 1 through the threaded holes on the back. The aviation socket fixing plate 4 can fix different types of circuit breaker aviation sockets to adapt to different circuit breaker solutions;

[0099] Fix the counter 51 to the counter mounting plate 52 by screws, and then fix the counter mounting plate 52 to the base plate 1 by screws;

[0100] The opening button 62, closing button 63, reset button 64 and manual-automatic knob 65 are fixed on the control button assembly module mounting plate 61 to obtain an overall control button assembly module 6, and then the overall control button assembly module 6 is fixed to the base plate 1 by screws.

[0101] The following combination Figures 3 to 7 The control circuits of the intelligent circuit breaker life test station are described and introduced. Figures 3 to 7 This is a control circuit diagram, in which the components are marked with electrical symbols. Figures 1-2 The markings of the components are different.

[0102] 3. Introduction to the control circuits of the intelligent circuit breaker life test station

[0103] The control circuit of the intelligent circuit breaker life test bench includes a closing control circuit, an opening control circuit, a counter control circuit and a control circuit of a PLC controller.

[0104] 3.1 Introduction to the closing control circuit

[0105] The closing control circuit includes an AC socket, a miniature circuit breaker F1, a miniature circuit breaker F2, a rectifier bridge V1, a closing button S2, a PLC controller A1-X11, and a circuit breaker aviation plug X1;

[0106] The 3rd interface of the miniature circuit breaker F1 is connected to the positive pole of the AC socket, and the 4th interface is connected to the B10 interface of the rectifier bridge V1; the 1st interface of the miniature circuit breaker F2 is connected to the negative pole of the AC socket, and the 2nd interface is connected to the B6 interface of the rectifier bridge V1;

[0107] The B9 interface of the rectifier bridge V1 is connected to the 13 interface of the closing button S2 and to the Q1-1 interface of the PLC controller A1-X11;

[0108] The 14th interface of the circuit breaker aviation plug X1 is connected to the 14th interface of the closing button S2 and the Q1-2 interface of the PLC controller A1-X11, and the 4th interface of the circuit breaker aviation plug X1 is connected to the B8 interface of the rectifier bridge V1.

[0109] 3.2 Introduction to the opening control circuit

[0110] The trip control circuit includes an AC socket, a miniature circuit breaker F1, a miniature circuit breaker F2, a rectifier bridge V2, a trip button S3, a PLC controller A1-X11, and a circuit breaker aviation plug X2;

[0111] The 3rd interface of the miniature circuit breaker F1 is connected to the positive pole of the AC socket, and the 4th interface is connected to the B10 interface of the rectifier bridge V2; the 1st interface of the miniature circuit breaker F2 is connected to the negative pole of the AC socket, and the 2nd interface is connected to the B6 interface of the rectifier bridge V2;

[0112] The B9 interface of the rectifier bridge V2 is connected to the 13 interface of the closing button S3 and to the Q2-1 interface of the PLC controller A1-X11;

[0113] The 30 interface of the circuit breaker aviation plug X2 is connected to the 14 interface of the closing button S3 and the Q2-2 interface of the PLC controller A1-X11, and the 31 interface of the circuit breaker aviation plug X2 is connected to the B8 interface of the rectifier bridge V2.

[0114] 3.3 Introduction to the Counter Control Circuit

[0115] The counter control circuit includes an AC socket, a miniature circuit breaker F1, a miniature circuit breaker F2, and a counter JDM9-4;

[0116] The 3rd port of the miniature circuit breaker F1 is connected to the positive pole of the AC socket, and the 4th port is connected to the positive pole of the counter JDM9-4;

[0117] Interface 1 of the miniature circuit breaker F2 is connected to the negative pole of the AC socket, and interface 2 is connected to the negative pole of the counter JDM9-4.

[0118] 3.4 Introduction to the control circuit of the PLC controller

[0119] The control circuit of the PLC controller includes an AC socket, a miniature circuit breaker F1, a miniature circuit breaker F2, a power module T1, a PLC controller A1-X10, a manual-automatic knob SA1, a reset button S1, and a circuit breaker aviation plug X0.

[0120] The 3rd port of the miniature circuit breaker F1 is connected to the positive pole of the AC socket, and the 4th port is connected to the L line inlet of the power module T1;

[0121] Interface 1 of the miniature circuit breaker F2 is connected to the negative terminal of the AC socket, and interface 2 is connected to the neutral line inlet of the power module T1;

[0122] The positive terminal of the power module T1 is connected to the L terminal of the PLC controller A1-X10. + Interface, 23 interface of manual-automatic knob SA1, 13 interface of manual-automatic knob SA1, 13 interface of reset button S1, 3 interface of circuit breaker aviation plug X0, 8 interface of circuit breaker aviation plug X0 are connected;

[0123] The negative terminal of the power module T1 is connected to the M interface of the PLC controller A1-X10;

[0124] The 24 interface of the manual automatic knob SA1 is connected to the I1 interface of the PLC controller A1-X10;

[0125] The 14 interface of the manual automatic knob SA1 is connected to the I2 interface of the PLC controller A1-X10;

[0126] The I4 interface of the reset button S1 is connected to the I3 interface of the PLC controller A1-X10;

[0127] The 18 interface of the circuit breaker aviation plug X0 is connected to the I6 interface of the PLC controller A1-X10;

[0128] The 13 interface of the circuit breaker aviation plug X0 is connected to the I5 interface of the PLC controller A1-X10, wherein a disconnect contact is provided between the 13 interface of the circuit breaker aviation plug X0 and the I5 interface of the PLC controller A1-X10;

[0129] The PLC controller A1-X10 is provided with a grounding device GND.

Claims

1. An intelligent circuit breaker life test bench, comprising a mounting base, a power input module, and a counter module, characterized in that: The intelligent circuit breaker life test bench also includes a comprehensive function module, an aviation socket module, and a control button assembly module; The integrated function module includes a circuit breaker, a power module, a PLC controller, a rectifier bridge and an integrated function module mounting plate; the circuit breaker, power module, PLC controller and rectifier bridge are arranged on the mounting base plate through the integrated function module mounting plate; The aviation socket module includes a circuit breaker aviation plug and an aviation socket module mounting plate; the circuit breaker aviation plug is arranged on the mounting base through the aviation socket module mounting plate; The control button assembly module includes an opening button, a closing button, a reset button, a manual and automatic knob, and a control button assembly module mounting plate; the opening button, the closing button, the reset button, and the manual and automatic knob are arranged on the mounting base through the control button assembly module mounting plate; The power input module, the counter module, the comprehensive function module, the aviation socket module and the control button assembly module are connected via a life detection control loop.

2. The intelligent circuit breaker life test bench according to claim 1, characterized in that: The life detection control circuit includes a closing control circuit, an opening control circuit, a counter control circuit and a control circuit of a PLC controller; The number of the circuit breakers is 2; The number of the rectifier bridges is 2; The number of the circuit breaker aerial plugs is 3.

3. The intelligent circuit breaker life test bench according to claim 2, characterized in that: The closing control circuit includes an AC socket, a circuit breaker 1, a circuit breaker 2, a rectifier bridge 1, a closing button, a PLC controller, and a circuit breaker aviation socket 1; The rectifier bridge 1 includes B6, B8, B9, and B10 interfaces; One end of the circuit breaker 1 is connected to the positive pole of the AC socket, and the other end is connected to the B10 interface of the rectifier bridge 1; One end of the circuit breaker 2 is connected to the negative pole of the AC socket, and the other end is connected to the B6 interface of the rectifier bridge 1; The B9 interface of the rectifier bridge 1 is connected to one end of the closing button and one end of the PLC controller; One end of the circuit breaker aviation plug 1 is connected to the other end of the closing button and the other end of the PLC controller; The other end of the circuit breaker aerial plug 1 is connected to B8 of the rectifier bridge 1 .

4. The intelligent circuit breaker life test bench according to claim 2, characterized in that: The trip control circuit includes an AC socket, a circuit breaker 1, a circuit breaker 2, a rectifier bridge 2, a trip button, a PLC controller, and a circuit breaker aerial socket 2; The rectifier bridge 2 includes B6, B8, B9, and B10 interfaces; One end of the circuit breaker 1 is connected to the positive pole of the AC socket, and the other end is connected to the B10 interface of the rectifier bridge 2; One end of the circuit breaker 2 is connected to the negative pole of the AC socket, and the other end is connected to the B6 interface of the rectifier bridge 2; The B9 interface of the rectifier bridge 2 is connected to one end of the closing button and one end of the PLC controller; One end of the circuit breaker aviation plug 2 is connected to the other end of the closing button and the other end of the PLC controller; The other end of the circuit breaker aerial plug 2 is connected to B8 of the rectifier bridge 2 .

5. The intelligent circuit breaker life test bench according to claim 2, characterized in that: The counter control circuit includes an AC socket, a circuit breaker 1, a circuit breaker 2, and a counter module; One end of the circuit breaker 1 is connected to the positive pole of the AC socket, and the other end is connected to the positive pole of the counter; One end of the circuit breaker 2 is connected to the negative pole of the AC socket, and the other end is connected to the negative pole of the counter.

6. The intelligent circuit breaker life test bench according to claim 2, characterized in that: The control circuit of the PLC controller includes an AC socket, a circuit breaker 1, a circuit breaker 2, a power module, a PLC controller, a manual / automatic knob, a reset button, and a circuit breaker aviation socket 3; The power module has an L line inlet, an N line inlet, a positive electrode inlet and a negative electrode inlet; The PLC controller has an L+ interface and an M interface; One end of the circuit breaker 1 is connected to the positive pole of the AC socket, and the other end is connected to the L line inlet of the power module; One end of the circuit breaker 2 is connected to the negative pole of the AC socket, and the other end is connected to the N line inlet of the power module; The PLC controller is connected in series with the power module. + The interface is connected to the positive terminal of the power module, and the M interface of the PLC controller is connected to the negative terminal of the power module; A manual / automatic knob, a reset button and a circuit breaker aviation plug 3 are connected in parallel between the PLC controller and the power module.

7. The intelligent circuit breaker life test bench according to claim 1, characterized in that: The output current of the power input module is 220V AC; the power module can convert the input 220V AC into the output 24V DC.

8. The intelligent circuit breaker life test bench according to claim 1, characterized in that: The aviation socket module mounting plate is provided with a replaceable mounting portion, and the mounting portion can be adapted to a corresponding circuit breaker aviation plug; the circuit breaker aviation plug is arranged on the aviation socket module mounting plate through the mounting portion.

9. The intelligent circuit breaker life test bench according to claim 1, characterized in that: The control button assembly module also includes a grounding device.

10. The intelligent circuit breaker life test bench according to claim 1, characterized in that: The circuit breaker adopts air switch type miniature circuit breaker.

Citation Information

Patent Citations

  • Intelligent reclosing circuit breaker service life test equipment

    CN216444350U