Main circuit breaker testing device

Abstract

The utility model provides a main circuit breaker testing device, which is used for testing a to-be-tested main circuit breaker and comprises a transformer unit, a wind pressure adjusting unit and a control system, and the transformer unit and the wind pressure adjusting unit are respectively connected with the control system; the control system sends a voltage regulation instruction to the transformer unit, so that the transformer unit performs voltage regulation on the received electric energy based on the voltage regulation instruction and transmits the regulated electric energy to the to-be-tested main circuit breaker; and the control system sends a wind pressure adjustment instruction to the wind pressure adjustment unit, so that the wind pressure adjustment unit performs wind pressure adjustment on the received wind energy based on the wind pressure adjustment instruction and transmits the adjusted wind energy to the to-be-tested main circuit breaker. Through the device, the main circuit breaker can be tested under different voltages and different wind pressures.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of motor train unit testing, in particular to a main circuit breaker testing device. BACKGROUND

[0002] The main circuit breaker is an important component of high-voltage electrical appliances of a motor train unit, and its stability and safety are the key to ensuring the smooth operation of the vehicle. At present, the test of the main circuit breaker is mainly carried out in a ground laboratory, and a power supply and an air source are needed, and the test needs to be carried out at different voltages and air pressures, while most of the tests in the laboratory use constant power supply and air source. CONTENT OF THE UTILITY MODEL

[0003] Therefore, the purpose of the present application is to provide a main circuit breaker testing device, the transformer unit and the air pressure adjusting unit can convert the input electric energy and air energy into the required energy of the main circuit breaker to be tested, and the energy can be changed according to the requirements, so that the main circuit breaker can be tested at different voltages and different air pressures.

[0004] The present application provides a main circuit breaker testing device for testing a main circuit breaker to be tested, which comprises a transformer unit, an air pressure adjusting unit and a control system, wherein the transformer unit and the air pressure adjusting unit are connected to the control system respectively.

[0005] The control system sends a voltage adjusting instruction to the transformer unit, so that the transformer unit adjusts the voltage of the received electric energy based on the voltage adjusting instruction and transmits the adjusted electric energy to the main circuit breaker to be tested.

[0006] The control system sends an air pressure adjusting instruction to the air pressure adjusting unit, so that the air pressure adjusting unit adjusts the air pressure of the received air energy based on the air pressure adjusting instruction and transmits the adjusted air energy to the main circuit breaker to be tested.

[0007] Further, the main circuit breaker testing device further comprises an interaction unit connected to the control system.

[0008] Further, the main circuit breaker testing device further comprises a voltage detection unit and an air pressure detection unit.

[0009] The voltage detection unit is connected to the transformer unit, and the air pressure detection unit is connected to the air pressure adjusting unit.

[0010] Further, the main circuit breaker testing device further comprises a fault alarm unit.

[0011] The voltage detection unit and the wind pressure detection unit are connected with the fault alarm unit, and the fault alarm unit is connected with the control system.

[0012] Further, the main circuit breaker testing device further comprises a protection circuit and a leakage protection unit.

[0013] The protection circuit and the leakage protection unit are connected with the fault alarm unit.

[0014] The protection circuit is connected with the transformer unit, and the leakage protection unit is connected with the wind pressure regulation unit.

[0015] Further, the main circuit breaker testing device further comprises an external power supply and an external wind source.

[0016] The external power supply is connected with the transformer unit, and is used for transmitting electric energy to the transformer unit.

[0017] The external wind source is connected with the wind pressure regulation unit, and is used for transmitting wind energy to the wind pressure regulation unit.

[0018] Further, the transformer unit comprises a step-down circuit and a voltage regulation winding.

[0019] Further, the wind pressure regulation unit comprises a relief valve and a regulation valve.

[0020] The main circuit breaker testing device provided in the application is used for testing a main circuit breaker to be tested, and comprises a transformer unit, a wind pressure regulation unit and a control system, wherein the transformer unit and the wind pressure regulation unit are connected with the control system; the control system sends a voltage regulation instruction to the transformer unit, so that the transformer unit regulates the received electric energy based on the voltage regulation instruction and transmits the regulated electric energy to the main circuit breaker to be tested; and the control system sends a wind pressure regulation instruction to the wind pressure regulation unit, so that the wind pressure regulation unit regulates the received wind energy based on the wind pressure regulation instruction and transmits the regulated wind energy to the main circuit breaker to be tested.

[0021] The main circuit breaker testing device provided in the application has an interface of a power supply and a wind source of the main circuit breaker to be tested, and can control the power supply and the wind source. The transformer unit regulates the electric energy to a required voltage value according to the received voltage regulation instruction, and the wind pressure regulation unit regulates the wind energy to a required wind pressure value according to the received wind pressure regulation instruction. The transformer unit and the wind pressure regulation unit can convert the input electric energy and wind energy into the required electric energy and wind energy of the main circuit breaker to be tested, and can be changed according to the requirement, so that the main circuit breaker can be tested under different voltages and different wind pressures, and the technical problem that the main circuit breaker can only be tested under constant voltage and constant wind pressure in the prior art is solved.

[0022] In order to make the above objectives, characteristics and advantages of the present application more obvious and easy to understand, the following preferred embodiments are specifically described below, and the accompanying drawings are referred to for a detailed description. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0024] Figure 1 Structure schematic diagram of a main circuit breaker testing device provided by the embodiments of the present application;

[0025] Figure 2 Structure schematic diagram of a main circuit breaker testing device provided by the embodiments of the present application;

[0026] Figure 3 Flowchart of testing a main circuit breaker by a main circuit breaker testing device provided by the embodiments of the present application.

[0027] In combination with the drawings, the following are the notations of the drawings in the embodiments of the present application:

[0028] 1-main circuit breaker testing device; 10-transformer unit; 20-wind pressure regulating unit; 30-control system; 40-interaction unit; 50-voltage detection unit; 60-wind pressure detection unit; 70-fault alarm unit; 80-protection circuit; 90-leakage protection unit; 100-external power supply; 110-external wind source; 11-voltage reduction circuit; 12-voltage regulating winding; 21-drain valve; 22-regulating valve. DETAILED DESCRIPTION

[0029] In order to make the objectives, technical solutions and advantages of the embodiments of the present application more clear, the following will combine the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. The components of the embodiments of the present application described and shown in the drawings can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments of the present application, every other embodiment obtained by those skilled in the art without creative labor belongs to the scope of protection of the present application.

[0030] Firstly, the application scenarios applicable to the present application are introduced. The present application can be applied to the testing technology field of motor train unit, and serves as a main circuit breaker testing device.

[0031] The main circuit breaker is an important component of the high-voltage electrical appliance of the motor train unit, and its stability and safety are the key to ensure the smooth operation of the vehicle. At present, the test of the main circuit breaker is mainly carried out in the ground laboratory, and power supply and air source are needed, and the test needs to be carried out under different voltages and air pressures, while most of the tests in the laboratory use constant power supply and air source.

[0032] Based on this, the embodiment of the present application provides a main circuit breaker testing device. The transformer unit and the air pressure adjusting unit can convert the accessed electric energy and wind energy into the required energy of the main circuit breaker to be tested, and can be changed according to the requirements, so as to realize the testing of the main circuit breaker under different voltages and different air pressures.

[0033] Please refer to Figure 1 , Figure 1 The structure diagram of the main circuit breaker testing device provided by the embodiment of the present application is shown in FIG. 1. The main circuit breaker testing device provided by the embodiment of the present application is used for testing the main circuit breaker to be tested, as shown in FIG. 1, the main circuit breaker testing device 1 provided by the embodiment of the present application comprises a transformer unit 10, an air pressure adjusting unit 20 and a control system 30, and the transformer unit 10 and the air pressure adjusting unit 20 are connected with the control system 30 respectively. Figure 1

[0034] The control system 30 sends a voltage adjusting instruction to the transformer unit 10, so that the transformer unit 10 adjusts the voltage of the received electric energy based on the voltage adjusting instruction and transmits the adjusted electric energy to the main circuit breaker to be tested.

[0035] Here, the transformer unit 10 is used for adjusting the voltage of the received electric energy based on the voltage adjusting instruction, and outputting the required electric energy. The control system 30 determines the required voltage value by calling the existing engineering, or responds to the user's setting of the voltage value to determine the required voltage value. The control system 30 generates a corresponding voltage adjusting instruction based on the preset voltage value, and sends the voltage adjusting instruction to the transformer unit 10. The transformer unit 10 adjusts the voltage of the received electric energy based on the received voltage adjusting instruction, obtains the adjusted voltage, and transmits the adjusted voltage to the main circuit breaker to be tested.

[0036] The control system 30 sends a wind pressure adjusting instruction to the air pressure adjusting unit 20, so that the air pressure adjusting unit 20 adjusts the wind pressure of the received wind energy based on the wind pressure adjusting instruction and transmits the adjusted wind energy to the main circuit breaker to be tested.

[0037] ​The wind pressure adjusting unit 20 is configured to adjust the received wind energy based on the wind pressure adjusting instruction and output the required wind energy. The control system 30 determines the required wind pressure value by calling existing engineering or in response to the user setting of the wind pressure value. The control system 30 generates the corresponding wind pressure adjusting instruction based on the preset wind pressure value and sends the wind pressure adjusting instruction to the wind pressure adjusting unit 20. The wind pressure adjusting unit 20 adjusts the received wind energy based on the received wind pressure adjusting instruction to obtain the adjusted wind energy, and transmits the adjusted wind energy to the main circuit breaker to be tested.

[0038] In this way, the transformer unit 10 can adjust the received electric energy to the required voltage value according to the received voltage adjusting instruction, and the wind pressure adjusting unit 20 can adjust the received wind energy to the required wind pressure value according to the received wind pressure adjusting instruction. The transformer unit 10 and the wind pressure adjusting unit 20 can convert the received electric energy and wind energy into the required energy of the main circuit breaker to be tested, and can be changed according to the requirement.

[0039] Please refer to Figure 2 , Figure 2 FIG. 2 is a structural schematic diagram of a main circuit breaker testing device provided by an embodiment of the present application. As shown in Figure 2 , the main circuit breaker testing device 1 further comprises an interaction unit 40 connected with the control system 30.

[0040] Here, the user can determine the required voltage value and the required wind pressure value according to the interaction unit 40. As an example, the interaction unit 40 can be a display screen or specific keys, which are not limited in the present application. The control system 30 generates the corresponding voltage adjusting instruction and wind pressure adjusting instruction in response to the user setting of the required voltage value and the required wind pressure value on the interaction unit 40, so as to accurately control the output of the voltage and the wind pressure.

[0041] Further, as shown in Figure 2 , the main circuit breaker testing device 1 further comprises a voltage detection unit 50 and a wind pressure detection unit 60.

[0042] The voltage detection unit 50 is connected with the transformer unit 10, and the wind pressure detection unit 60 is connected with the wind pressure adjusting unit 20.

[0043] Here, the voltage detection unit 50 is connected with the transformer unit 10, and is mainly used for detecting whether the voltage output by the transformer unit 10 is abnormal. The wind pressure detection unit 60 is connected with the wind pressure adjusting unit 20, and is mainly used for detecting whether there is a wind source leakage in the wind pressure adjusting unit 20.

[0044] Further, as shown in Figure 2 , the main circuit breaker testing device 1 further comprises a fault alarm unit 70.

[0045] The voltage detection unit 50 and the wind pressure detection unit 60 are connected to the fault alarm unit 70, and the fault alarm unit 70 is connected to the control system 30.

[0046] Here, the voltage detection unit 50 and the wind pressure detection unit 60 are connected to the fault alarm unit 70. When the voltage detection unit 50 detects that the voltage output by the transformer unit 10 is abnormal, a voltage abnormality signal is generated and transmitted to the fault alarm unit 70. The fault alarm unit 70 can alarm through the voltage abnormality signal. When the wind pressure detection unit 60 detects that the wind source of the wind pressure regulating unit 20 leaks, a wind source leakage signal is generated and transmitted to the fault alarm unit 70. The fault alarm unit 70 can alarm through the wind source leakage signal.

[0047] At the same time, the fault alarm unit 70 is connected to the control system 30, and when the fault alarm unit 70 receives the voltage abnormality signal and / or the wind source leakage signal, it can be sent to the control system 30 at the same time, so that the control system 30 controls the transformer unit 10 to stop outputting electric energy and / or controls the wind pressure regulating unit 20 to stop outputting wind energy.

[0048] Further, as shown in Figure 2 The main circuit breaker testing device 1 further comprises a protection circuit 80 and a leakage protection unit 90.

[0049] The protection circuit 80 and the leakage protection unit 90 are connected to the fault alarm unit 70, respectively.

[0050] The protection circuit 80 is connected to the transformer unit 10, and the leakage protection unit 90 is connected to the wind pressure regulating unit 20.

[0051] Here, the protection circuit 80 and the leakage protection unit 90 are connected to the fault alarm unit 70, respectively, the protection circuit 80 is connected to the transformer unit 10, and the leakage protection unit 90 is connected to the wind pressure regulating unit 20.

[0052] The protection circuit 80 is mainly used to protect the transformer unit 10 from overload and prevent the output voltage from exceeding the safe range. Specifically, when the fault alarm unit 70 receives the voltage abnormality signal sent by the voltage detection unit 50, it can send corresponding instructions to the protection circuit 80 to use the protection circuit 80 to limit the voltage of the electric energy output by the transformer unit 10 to avoid damage.

[0053] The leakage protection unit 90 is mainly used to prevent energy leakage or loss of the wind pressure regulating unit 20, and ensure the efficiency and safety of the entire test device. Specifically, when the fault alarm unit 70 receives the wind source leakage signal sent by the wind pressure detection unit 60, it can send corresponding instructions to the leakage protection unit 90 to use the leakage protection unit 90 to perform leakage protection on the wind pressure regulating unit 20.

[0054] In this way, the main circuit breaker test device 1 provided in the present application is equipped with the protection circuit 80 and the leakage protection unit 90. The protection circuit 80 has reliable safety measures, and the leakage protection unit 90 has a leakage prevention function, which ensures the safety of the main circuit breaker test device 1 and the safety of the operating personnel.

[0055] Further, as shown in Figure 2 , the main circuit breaker test device 1 further comprises an external power source 100 and an external wind source 110.

[0056] The external power source 100 is connected to the transformer unit 10 and is used to transmit electrical energy to the transformer unit 10.

[0057] The external wind source 110 is connected to the wind pressure regulating unit 20 and is used to transmit wind energy to the wind pressure regulating unit 20.

[0058] Here, the external power is input by the external power source 100, and the external wind energy is input by the external wind source 110. The external power source 100 is connected to the transformer unit 10 to transmit electrical energy to the transformer unit 10. The external wind source 110 is connected to the wind pressure regulating unit 20 to transmit wind energy to the wind pressure regulating unit 20.

[0059] Further, as shown in Figure 2 , the transformer unit 10 comprises a step-down circuit 11 and a voltage regulating winding 12.

[0060] Here, the main function of the step-down circuit 11 is to reduce the input voltage to make it suitable for specific loads or applications.

[0061] The main function of the voltage regulating winding 12 is to accurately regulate the output voltage to ensure that the voltage is stable at the preset target value. According to the embodiment provided in the present application, the voltage regulating winding 12 can accurately regulate the voltage according to the voltage regulation instructions transmitted by the control system 30, so as to output the required electrical energy by the transformer unit 10.

[0062] Further, as shown in Figure 3 , the wind pressure regulating unit 20 comprises a relief valve 21 and a regulating valve 22.

[0063] Here, when the wind pressure in the wind pressure adjusting unit 20 exceeds a preset safety value, the relief valve 21 will automatically open to release the excess pressure, preventing the equipment and pipelines from being damaged by overpressure, and ensuring that the wind pressure fluctuates within a safe range.

[0064] The main function of the regulating valve 22 is to accurately control the wind pressure according to the demand, so that it remains at the preset target value. According to the embodiments provided in the present application, the regulating valve 22 can accurately control the wind pressure according to the wind pressure adjusting instructions transmitted by the control system 30, so that the wind pressure adjusting unit 20 outputs the required wind energy.

[0065] Further, the main circuit breaker testing device 1 provided in the embodiments of the present application is also provided with a grounding point, which can be connected to the external grounding through the shell, and has the functions of manual point rising, point falling, emergency stop, starting and stopping. At the same time, the main circuit breaker testing device 1 has small test noise and small size, and the digital control part is simple to operate and reliable in performance; the bottom of the main circuit breaker testing device 1 can also be provided with a movable universal wheel, which is convenient for non-frequent movement.

[0066] The main circuit breaker testing device provided in the present application is used for testing the to-be-tested main circuit breaker, and includes a transformer unit, a wind pressure adjusting unit and a control system, wherein the transformer unit and the wind pressure adjusting unit are connected with the control system respectively; the control system sends a voltage adjusting instruction to the transformer unit, so that the transformer unit adjusts the received electric energy based on the voltage adjusting instruction and transmits the adjusted electric energy to the to-be-tested main circuit breaker; and the control system sends a wind pressure adjusting instruction to the wind pressure adjusting unit, so that the wind pressure adjusting unit adjusts the received wind energy based on the wind pressure adjusting instruction and transmits the adjusted wind energy to the to-be-tested main circuit breaker.

[0067] The main circuit breaker testing device provided in the present application is provided with a power supply and a wind source interface of the to-be-tested main circuit breaker, and can control the power supply and the wind source. The transformer unit adjusts the electric energy to the required voltage value according to the received voltage adjusting instruction, and the wind pressure adjusting unit adjusts the wind energy to the required wind pressure value according to the received wind pressure adjusting instruction. The transformer unit and the wind pressure adjusting unit can convert the connected electric energy and wind energy into the required electric energy and wind energy of the to-be-tested main circuit breaker, and can be changed according to the demand, forming a test environment with different voltages and different wind pressures, realizing the testing of the main circuit breaker under different voltages and different wind pressures, and solving the technical problem that the main circuit breaker can only be tested under constant voltage and constant wind pressure in the prior art.

[0068] Please refer to Figure 3 , Figure 3 The present application provides a flowchart for testing the main circuit breaker by the main circuit breaker testing device. As shown in Figure 3As shown, when the main circuit breaker test starts, the main circuit breaker test device is powered on and the control system constants are initialized. Then it is detected whether the external air source supply air is abnormal, whether the external power supply is abnormal, and if there is an abnormality, the device is self-locked, a fault display is performed in the control system, and a fault reset is performed. The user sets the test parameters through the interactive unit, sets the required voltage and air pressure, and the control system can also call the existing project to obtain the required voltage value and air pressure value, and generate corresponding voltage adjustment instructions and air pressure adjustment instructions. The air pressure adjustment unit adjusts the received wind energy based on the air pressure adjustment instructions and outputs the wind energy to the main circuit breaker to be tested. The transformer unit adjusts the received electrical energy based on the voltage adjustment instructions and outputs the voltage to the main circuit breaker to be tested. At the same time, the air pressure detection unit detects whether there is air source leakage, and if there is, the leakage protection unit is used to protect the air pressure adjustment unit from leakage, and a fault alarm is performed. The voltage detection unit detects whether there is voltage abnormality, and if there is, the protection circuit is used to limit the voltage of the electrical energy output by the transformer unit, and a fault alarm is performed. After the test is completed, the test data is recorded and the test report is printed, the main circuit breaker test device is powered off, and the test is completed.

[0069] In several embodiments provided in the present application, it should be understood that the disclosed system, device and method can be implemented in other ways. The device embodiments described above are only schematic. For example, the division of the units is only a logical function division, and actual implementation can have another division manner. For example, a plurality of units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the coupling or direct coupling or communication connection between the units shown or discussed can be indirect coupling or communication connection through some communication interfaces, devices or units, and can be electrical, mechanical or other forms.

[0070] The units described as separate components can or can not be physically separate, and the components shown as units can or can not be physical units, i.e. they can be located in one place or distributed on multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the embodiment.

[0071] In addition, the functional units in each embodiment of the present application can be integrated in one processing unit, or each unit can exist physically, or two or more units can be integrated in one unit.

[0072] If the functions are realized in the form of software function units and sold or used as independent products, they can be stored in a nonvolatile computer readable storage medium executable by a processor. Based on this understanding, the technical solutions of the present application essentially or the parts of the prior art that make contributions or parts of the technical solutions can be embodied in the form of software products. The computer software product is stored in a storage medium and includes a plurality of instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the method described in the embodiments of the present application. The aforementioned storage medium includes: a U disk, a mobile hard disk, a read-only memory (Read-Only Memory, ROM), a random access memory (Random Access Memory, RAM), a magnetic disk or an optical disk, and various media that can store program codes.

[0073] Finally, it should be noted that: the above-described embodiments are only specific embodiments of the present application, which are used to illustrate the technical solutions of the present application, but not to limit them. The protection scope of the present application is not limited thereto. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that any person skilled in the art can make modifications or easily think of changes to the technical solutions described in the foregoing embodiments within the technical scope disclosed by the present application, or make equivalent replacements to some of the technical features. The modifications, changes or replacements do not make the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A main circuit breaker testing device, characterized by, The main circuit breaker testing device is used for testing a main circuit breaker to be tested, and comprises a transformer unit, a wind pressure adjusting unit and a control system, wherein the transformer unit and the wind pressure adjusting unit are connected with the control system respectively. The control system sends a voltage adjusting instruction to the transformer unit, so that the transformer unit adjusts the voltage of the received electric energy based on the voltage adjusting instruction and transmits the adjusted electric energy to the main circuit breaker to be tested. The control system sends a wind pressure adjusting instruction to the wind pressure adjusting unit, so that the wind pressure adjusting unit adjusts the wind pressure of the received wind energy based on the wind pressure adjusting instruction and transmits the adjusted wind energy to the main circuit breaker to be tested.

2. The main breaker testing device of claim 1, wherein, The main circuit breaker testing device further comprises an interaction unit connected with the control system.

3. The main breaker testing device of claim 1, wherein, The main circuit breaker testing device further comprises a voltage detection unit and a wind pressure detection unit. The voltage detection unit is connected with the transformer unit, and the wind pressure detection unit is connected with the wind pressure adjusting unit.

4. The main breaker testing device of claim 3, wherein, The main circuit breaker testing device further comprises a fault alarm unit. The voltage detection unit and the wind pressure detection unit are connected with the fault alarm unit respectively, and the fault alarm unit is connected with the control system.

5. The main breaker testing device of claim 4, wherein, The main circuit breaker testing device further comprises a protection circuit and a leakage protection unit. The protection circuit and the leakage protection unit are connected with the fault alarm unit respectively. The protection circuit is connected with the transformer unit, and the leakage protection unit is connected with the wind pressure adjusting unit.

6. The main breaker testing device of claim 1, wherein, The main circuit breaker testing device further comprises an external power source and an external wind source. The external power source is connected with the transformer unit and is used for transmitting electric energy to the transformer unit. The external wind source is connected with the wind pressure adjusting unit and is used for transmitting wind energy to the wind pressure adjusting unit.

7. The main breaker testing device of claim 1, wherein, The transformer unit comprises a voltage reduction circuit and a voltage regulating winding.

8. The main breaker testing device of claim 1, wherein, The wind pressure adjusting unit comprises a discharge valve and an adjusting valve.

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