CN106969894B - Fault simulation detection system for electric head contactor - Google Patents
Fault simulation detection system for electric head contactor Download PDFInfo
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- CN106969894B CN106969894B CN201710071871.6A CN201710071871A CN106969894B CN 106969894 B CN106969894 B CN 106969894B CN 201710071871 A CN201710071871 A CN 201710071871A CN 106969894 B CN106969894 B CN 106969894B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
- G01M7/02—Vibration-testing by means of a shake table
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N17/00—Investigating resistance of materials to the weather, to corrosion, or to light
- G01N17/002—Test chambers
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
Abstract
The invention relates to a fault simulation detection system for a contactor of an electric head. The electric head contactor fault simulation detection system comprises an electric head contactor unit, an environment simulation device, a detection device, an electric comprehensive controller and a PC. The PC controls the environment simulation device through the electric integrated controller, and can simulate the test environment and the fault type required by the electric head contactor unit; and meanwhile, the detection and analysis of the electrical parameter signals and the mechanical parameter information of the electric head contactor unit are completed through the detection device. Failure analysis and reliability prediction are carried out through the PC, intuitive diagnosis, analysis, positioning and reliability analysis and evaluation are provided for the faults of the electric head contactor unit, practical data are provided for the improved manufacturing process of the electric head contactor used in the working environment of the nuclear power station, and reliable improvement measures and basis are provided for the follow-up improvement of the fault-free operation of the intelligent electric head.
Description
Technical Field
The invention relates to the technical field of nuclear power station simulation tests, in particular to a fault simulation detection system for a contactor of an electric head.
Background
The intelligent power head is widely applied to a conventional island control system of a nuclear power station, is an important process control execution unit, and has a vital influence on the safe operation of the whole control system. Contactors are currently used on electrical heads in conventional islands of nuclear power plants as power controllers for electrical machines. The conventional island intelligent electric head contactor of the nuclear power station is arranged in a narrow and closed space together with other control circuit components such as a circuit board, and the mechanical vibration, the electromagnetic vibration, the thermal radiation, the electromagnetic radiation, the chemical reaction and the like in the working process can have bad influence on the material composition, the action sensitivity, the reliability and the contact characteristic of a body of the contactor, so that faults are caused, the electric head is controlled to be invalid, and the risk is brought to the safe operation of the nuclear power station.
The general technical means for detecting the comprehensive parameters of the contactor is based on the stable working state of the contactor in an open working space, and belongs to normal conventional detection. However, the manufacturing process variation of the contactor causes the electrical performance and physical characteristics of the contactor to vary greatly compared to conventional testing under different working conditions and environments. The conventional island intelligent electric head contactor of the nuclear power station and other control circuit components such as a circuit board are arranged in a narrow and closed space, and the normal state conventional detection and detection of the conventional contactor are not suitable for the detection of the conventional island intelligent electric head contactor of the nuclear power station, namely, the fault of the conventional island intelligent electric head contact of the nuclear power station cannot be detected and analyzed.
Disclosure of Invention
Therefore, in order to solve the above problems, it is necessary to provide a fault simulation detection system for a power head contactor, which can simulate the working environment of an intelligent contactor, reproduce faults, detect and analyze the contactor in the simulated environment, and provide a basis for preventive maintenance of the contactor in the working environment of a nuclear power plant.
A power head contactor fault simulation detection system, comprising:
a power head contactor unit;
the environment simulation device is used for accommodating the electric head contactor unit, simulating the working environment of the electric head contactor unit and outputting the environment parameter information of the working environment;
the detection device is arranged on the electric head contactor and used for detecting the working parameter information of the electric head contactor;
the electric comprehensive controller is respectively connected with the electric head contactor unit, the environment simulation device and the detection device and is used for receiving the environment parameter information and the working parameter information; and
the PC is connected with the electric appliance integrated controller and used for sending a first control instruction for controlling the environment simulation device and a second control instruction for controlling the electric head contactor unit and receiving environment parameter information and working parameter information from the electric appliance integrated controller; and the electric head contactor unit is also used for detecting and analyzing the electric parameter information and the mechanical parameter information of the electric head contactor unit according to the environment parameter information and the working parameter information and outputting a fault detection result of the electric head contactor.
The fault simulation detection system for the contactor of the electric head is different from the conventional mature normal detection system based on the contactor in an open working space and a stable working state. The electric head contactor unit of the electric head contactor fault simulation detection system further comprises an environment simulation device, a detection device, an electric comprehensive controller and a PC. The PC controls the environment simulation device through the electric integrated controller, and can simulate the test environment and the fault type required by the electric head contactor unit; and simultaneously, the detection and analysis of the electrical parameter signals and the mechanical parameter information of the contactor are completed. Failure analysis and reliability prediction are carried out through the PC, intuitive diagnosis, analysis, positioning and reliability analysis and evaluation are provided for the faults of the electric head contactor unit, practical data are provided for the improved manufacturing process of the electric head contactor used in the working environment of the nuclear power station, and reliable improvement measures and basis are provided for the follow-up improvement of the fault-free operation of the intelligent electric head.
In one embodiment, the environment simulation device comprises a vibration test bed and a constant-temperature and constant-humidity salt fog comprehensive test box; the vibration test bed and the constant-temperature and constant-humidity salt fog comprehensive test box are respectively connected with the electric comprehensive controller; wherein the content of the first and second substances,
the constant-temperature and constant-humidity salt mist comprehensive test box is located on the vibration test bed, and the electric head contactor unit is located in the constant-temperature and constant-humidity salt mist comprehensive test box.
In one embodiment, the vibration test bed is a spatial six-dimensional vibration test bed, and is used for providing six-dimensional vibration of 1-600 Hz according to the first control instruction, and displaying and outputting the current working frequency in real time.
In one embodiment, the constant-temperature and constant-humidity salt fog comprehensive test box is a two-in-one comprehensive test box of a constant-temperature and constant-humidity test box and a humidity salt fog test box, and is used for adjusting the temperature, the humidity, the salt fog concentration and the time information of the constant-temperature and constant-humidity salt fog comprehensive test box according to the first control instruction, and displaying and outputting the temperature, the humidity and the salt fog concentration information of the constant-temperature and constant-humidity salt fog comprehensive test box in real time.
In one embodiment, the detection device comprises a current sensor, a voltage sensor and a temperature sensor; the current sensor, the voltage sensor and the temperature sensor are respectively connected with the electric appliance integrated controller;
the current sensor is used for detecting and outputting contact current information of the electric head contactor unit in real time;
the voltage sensor is used for detecting and outputting contact resistance voltage drop information of a contact of the electric head contactor unit in real time;
the temperature sensor is used for detecting and outputting the temperature information of the electric head contactor unit in real time.
In one embodiment, the device further comprises a pressure generating device, wherein the pressure generating device is respectively communicated with the electric comprehensive controller and the constant-temperature and constant-humidity salt fog comprehensive test box, and is used for injecting or extracting air into or from the constant-temperature and constant-humidity salt fog comprehensive test box, and detecting and outputting an air pressure signal of the constant-temperature and constant-humidity salt fog comprehensive test box.
In one embodiment, the device further comprises a gas detection device, wherein the gas detection device is respectively communicated with the electric comprehensive controller and the constant-temperature and constant-humidity salt fog comprehensive test box and is used for detecting and outputting the gas concentration of the constant-temperature and constant-humidity salt fog comprehensive test box.
In one embodiment, the electric integrated controller comprises a data acquisition unit and a data transmission unit, wherein the data acquisition unit is respectively connected with a detection device and an environment simulation device and is used for acquiring working parameter information of the detection device and environment parameter information of the environment simulation device;
the data transmission unit is respectively connected with the PC and the environment simulation device, and is used for transmitting a first control instruction sent by the PC to the environment simulation device and transmitting a second control instruction sent by the PC to the electric head contactor unit.
In one embodiment, the PC comprises a processing unit, a first storage unit, a second storage unit and a display unit;
the processing unit is respectively connected with the first storage unit, the second storage unit and the display unit; the processing unit is used for sending a first control instruction and a second control instruction; the first storage unit is used for storing standard parameter information of the electric head contactor; the second storage unit is used for storing the environmental parameter information and the working parameter information from the electric comprehensive controller; the processing unit is also used for detecting and analyzing the electrical parameter information and the mechanical parameter information of the electric head contactor unit according to the environmental parameter information and the working parameter information, and outputting a fault detection result of the electric head contactor to the display unit for displaying.
In one embodiment, the system further comprises a printing device, wherein the printing device is connected with the PC and used for printing the fault detection result.
Drawings
FIG. 1 is a block diagram of a fault simulation detection system for a power head contactor according to an embodiment;
FIG. 2 is a schematic diagram of a system for fault simulation detection of a power head contactor according to an embodiment.
Detailed Description
To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Fig. 1 is a structural frame diagram of a system for simulating and detecting a fault of a power head contactor according to an embodiment, and fig. 2 is a schematic diagram of a system for simulating and detecting a fault of a power head contactor according to an embodiment. The power head contactor fault simulation detection system comprises a power head contactor unit 100, an environment simulation device 200, a detection device 300, an electric integrated controller 400 and a PC 500. The electrical integrated controller 400 is connected to the PC 500, the environmental simulator 200, and the detection device 300, respectively. The powerhead contactor unit 100 is built into the environmental simulator 200. The electric head contactor unit 100 may be a conventional island intelligent electric head complete machine, or a conventional island intelligent electric head contactor, and the contactor may be a 24V dc contactor, a 110V ac contactor, a single contactor, or a forward and reverse rotation interlocking contactor.
The PC 500 controls the environment simulation apparatus 200 through the electrical integrated controller 400, that is, the test environment and the fault type required by the electric head contactor unit 100 can be simulated; meanwhile, the detection device 300 may detect the operating parameter information of the power head contactor unit 100 in real time. The PC 500 detects and analyzes the electrical parameter information and the mechanical parameter information of the electric head contactor unit 100 according to the test environment and the working parameter information and outputs the fault detection result of the electric head contactor. The fault simulation detection system of the electric head contactor can simulate the working environment of the electric head contactor unit 100, reproduce fault phenomena, measure working parameters and detect reliability, and can carry out failure analysis and reliability prediction through the software of the PC 500, thereby providing intuitive diagnosis, analysis, positioning and reliability analysis and evaluation for the fault of the electric head contactor unit 100.
The environment simulation apparatus 200 is configured to accommodate the electric head contactor unit 100, and is configured to simulate a working environment of the electric head contactor unit 100 and output environment parameter information of the working environment. The environment simulation device 200 comprises a vibration test bed 210 and a constant-temperature and constant-humidity salt fog comprehensive test box 220. The vibration test bed 210 and the constant temperature and humidity salt fog comprehensive test box 220 are respectively connected with the electric comprehensive controller 400. The constant temperature and humidity salt fog comprehensive test box 220 is located on the vibration test bed 210, and the electric head contactor unit 100 is located in the constant temperature and humidity salt fog comprehensive test box 220. The environmental parameter information includes temperature, humidity, and salt fog information in the constant temperature and humidity salt fog comprehensive test box 220 and vibration information of the vibration test bed 210.
In one embodiment, the vibration test rig 210 is a spatial six-dimensional vibration test rig. The spatial six-dimensional vibration test bed receives a first control instruction from the PC 500 transmitted through the electrical integrated controller 400, wherein the first control instruction includes a vibration instruction, a temperature, a humidity, and a salt spray control instruction. The spatial six-dimensional vibration test bed receives a vibration instruction in the first control instruction, provides 1-600 Hz six-dimensional vibration, and displays the current working vibration frequency in real time. The vibration of the spatial six-dimensional vibration test bed drives the vibration of the constant-temperature and constant-humidity salt fog comprehensive test box 220 on the spatial six-dimensional vibration test bed, that is, the electric head contactor unit 100 can vibrate accordingly, and the vibration frequency of the electric head contactor unit 100 is consistent with that of the spatial six-dimensional vibration test bed. Of course, the spatial six-dimensional vibration test bed can also output the current working vibration frequency to the electrical integrated controller 400 in real time, and then the current working vibration frequency is transmitted to the PC 500 by the electrical integrated controller 400.
In an embodiment, the constant temperature and humidity salt fog comprehensive test box 220 is a two-in-one comprehensive test box of a constant temperature and humidity test box and a humidity salt fog test box, and is configured to adjust temperature, humidity, salt fog concentration and time information in the box body according to the temperature, humidity and salt fog control instruction of the first control instruction. Wherein the ambient humidity range: 0 to 100 percent; ambient temperature range: 10-75 ℃; the environmental salt spray meets the national standard of GB6458-86 salt spray test. The constant temperature and humidity salt fog comprehensive test box 220 randomly adjusts the temperature, humidity and salt fog concentration information in the box body and the continuous time information within the temperature, humidity and salt fog concentration range according to the first control instruction. Meanwhile, the constant temperature and humidity salt fog comprehensive test box 220 can also display information of temperature, humidity and salt fog concentration in the box body in real time, transmit the displayed information to the electric comprehensive controller 400 in real time, and transmit the information to the PC 500 through the electric comprehensive controller 400.
In an embodiment, the power head contactor unit 100 located in the constant temperature and humidity salt fog comprehensive test chamber 220 receives a second control instruction of the PC 500 through the electrical comprehensive controller 400, so as to implement long-time uninterrupted continuous test operation. The second control commands include power head contactor unit 100 main contact high current control and coil operating voltage control. The large current of the main contact is controlled by a constant current of 3 phases 50 Aac; the coil working voltage comprises direct current (0-40V) and alternating current (0-148V).
And the detection device 300 is arranged on the electric head contactor and used for detecting the working parameter information of the electric head contactor. The working parameter information includes contact current information of the electric head contactor unit 100, contact resistance voltage drop information of the contacts, temperature information of the contactor, a constant temperature and humidity salt fog comprehensive test box 220 air pressure signal and gas concentration information.
In one embodiment, the detection device 300 includes a current sensor 310, a voltage sensor 320, a temperature sensor 330; the current sensor 310, the voltage sensor 320 and the temperature sensor 330 are respectively connected with the electric appliance integrated controller.
The current sensor 310 is configured to detect contact current information of the power head contactor unit 100 in real time, convert the detected contact current information into a digital signal that can be recognized by the PC 500, and transmit the digital signal to the PC 500 through the electrical appliance integrated controller.
The voltage sensor 320 is used for detecting contact resistance voltage drop information of the contacts of the power head contactor unit 100 in real time; and converts the detected contact resistance voltage drop information into a digital signal recognizable by the PC 500, and transmits the digital signal to the PC 500 through the electrical appliance integrated controller.
The temperature sensor 330 is used to detect and output temperature information of the power head contactor unit 100 in real time. The plurality of temperature sensors 330 are mounted inside the power head, on the contactor iron core, on the contactor coil, on the contactor contact, and the plurality of temperature sensors 330 are mounted in a surface mount manner, detect the temperature of the detected point in real time, convert the detected temperature information into a digital signal recognizable by the PC 500, and transmit the digital signal to the PC 500 through the electrical appliance integrated controller.
In an embodiment, the power head contactor fault simulation detection system further includes a pressure generating device 340, and the pressure generating device 340 is respectively communicated with the electrical integrated controller 400 and the constant temperature and humidity salt fog integrated test box 220. The pressure generating device 340 is an independent unit device, is communicated with the constant-temperature and constant-humidity salt fog comprehensive test box 220 through an air path valve and a connecting joint, and can be used for filling or extracting air into the constant-temperature and constant-humidity salt fog comprehensive test box 220 to form a working condition air pressure environment in a required simulation working state. Meanwhile, the air pressure information in the test chamber can be detected in real time, and the detected air pressure information is converted into a digital signal which can be recognized by the PC 500 and transmitted to the PC 500 through the electric integrated controller 400.
In an embodiment, the power head contactor fault simulation detection system further includes a gas detection device 350, and the gas detection device 350 is respectively communicated with the electrical integrated controller 400 and the constant temperature and humidity salt fog integrated test box 220. The gas detection device 350 is an independent unit device, and detects the concentration of various harmful gases in the constant-temperature and constant-humidity salt fog comprehensive test box 220 through a gas detection head. The harmful gas is mainly generated by the long-time work of the power supply of the power head contactor. The gas detection device 350 converts the detected gas concentration information into a digital signal recognizable to the PC 500, and transmits the digital signal to the PC 500 via the electrical integrated controller 400.
In one embodiment, the powerhead contactor fault simulation detection system further includes an auxiliary test tool 360. The auxiliary test tool 360 comprises a test line, a test tool, an electronic stopwatch and the like, provides a required tool for test tests, and improves the test efficiency.
In an embodiment, the electrical integrated controller 400 includes a data acquisition unit (not shown) and a data transmission unit (not shown), and the data acquisition unit is respectively connected to the detection device 300 and the environment simulation device 200, and is configured to acquire the working parameter information of the detection device 300 and the environment parameter information of the environment simulation device 200. The data transmission unit is respectively connected with the PC 500 and the environment simulation device 200, and the data transmission unit is used for transmitting a first control instruction sent by the PC 500 to the environment simulation device 200, transmitting a second control instruction sent by the PC 500 to the electric head contactor unit 100, and simultaneously transmitting working parameter information acquired by the detection device 300 and environment parameter information acquired by the environment simulation device 200 to the PC 500.
A PC 500 connected to the electrical appliance integrated controller, for sending a first control command for controlling the environment simulation apparatus 200 and a second control command for controlling the power head contactor unit 100, and receiving environment parameter information and operating parameter information from the electrical appliance integrated controller 400; and is further configured to detect and analyze electrical parameter information and mechanical parameter information of the electric head contactor unit 100 according to the environmental parameter information and the working parameter information, and output a fault detection result of the electric head contactor.
In one embodiment, the PC 500 includes a processing unit, a first storage unit, a second storage unit, and a display unit. The processing unit is respectively connected with the first storage unit, the second storage unit and the display unit. The processing unit is used for sending a first control instruction to control the vibration test bed 210 and the constant-temperature and constant-humidity salt fog comprehensive test box 220; and is also used for sending a second control command to control the power head contactor unit 100 to continuously test for a long time.
The first storage unit is used for storing standard parameter information of the electric head contactor. The first storage unit stores a simulation model library which takes contactors corresponding to various types of electric heads of the conventional island of the nuclear power station as basic units, and the model library stores a large amount of standard technical data of the contactors and various historical test data
The second storage unit is used for storing the environmental parameter information and the operating parameter information from the electrical integrated controller 400. The second storage unit stores environmental parameter information and operating parameter information of the current contactor.
After each test, the processing unit detects and analyzes the current test and the data and the graphs in the simulation model library in the first storage unit according to the environmental parameter information and the working parameter information stored in the second storage unit, and generates a detection and evaluation report. And detecting and analyzing the electrical parameter information and the mechanical parameter information of the electric head contactor unit 100, and outputting a fault detection result of the electric head contactor to the display unit for displaying. The electrical parameter information comprises the insulation strength of the coil to the ground, the internal resistance of the coil, the impedance of the coil, the attraction voltage of the iron core, the release voltage of the iron core, the contact resistance of the main contact, the contact resistance of the auxiliary contact, the rated excitation working current of the coil and the maximum working current of the main contact. The mechanical parameter information comprises long-term stable temperature rise under the rated load current of the main contact, coil temperature rise, main contact pull-in time, main contact release time, main contact synchronism detection, auxiliary contact synchronism detection, locked contact reliability detection of a forward and reverse rotating contactor and iron core electromagnetic noise.
Meanwhile, the processing unit can record information such as contactor contact type, fault phenomenon, fault time and the like, and finally display the information in a form and a working curve mode in real time in the display unit. The table parameters displayed by the display unit comprise insulation resistance, coil impedance, contact point resistance, temperature, humidity, salt haze, pull-in voltage, release voltage, pull-in time and return time; the displayed progress curves comprise a current curve, a voltage curve, a 6 main contact synchronous superposition curve and a positive and negative rotation interlocking reliability curve.
In an embodiment, the PC 500 further includes a simulation unit, and the simulation unit is connected to the processing unit, and can provide a synchronous three-dimensional simulation picture of the actual test process of the contactor, and visually display the working states and the on-off positions of the coil, the iron core, the main contact and the auxiliary contact of the contactor.
In an embodiment, the system for simulating and detecting a fault of a power head contactor further comprises a printing device, wherein the printing device is connected with the PC 500 and is used for printing the fault detection result (evaluation report).
Simulating and simulating environmental parameter information (temperature, humidity, salt fog and vibration) of the working environment of the intelligent electric head contactor of the conventional island of the nuclear power plant by using an environmental simulation device 200 (a vibration test bed 210 and a constant-temperature and constant-humidity salt fog comprehensive test box 220) in the electric head contactor fault simulation detection system; meanwhile, the contactor is continuously tested for a long time under the control of the PC 500, and the detection of working parameter information (current, voltage drop, temperature information of the contactor, air pressure signals and gas concentration information) during the working of the contactor is automatically and orderly completed. Meanwhile, the PC 500 detects and analyzes the electrical parameters and the mechanical parameters of the contactor according to the environmental parameter signals and the working parameter information, and then performs data and graph comparison analysis with the contactor basic technical data and the historical test data stored in the model library, thereby providing intuitive diagnosis, analysis, positioning and reliability analysis and evaluation for the fault of the contactor.
The electric head contactor fault simulation detection system can be used for carrying out working condition simulation, fault simulation, parameter detection, performance judgment and failure analysis on a 24V direct current contactor and a 110V alternating current contactor used by a conventional intelligent electric head of a conventional island. The method can also be used for detecting static tests and dynamic tests of the contactor. Wherein the static test comprises pull-in voltage/current; release (pull-in hold) voltage; an upper/lower limit range of the pull-in voltage; releasing the upper/lower limit range of the discharge; a rated holding current; a rated holding capacity; a coil resistance; a main/auxiliary contact resistor; a coil insulation resistance; performing coil overvoltage test; performing a high-current on-off test on the main/auxiliary contacts; and (5) synchronously detecting the main contact. The dynamic test comprises the following steps: load type simulation of pure resistive load (heating) and inductive load (alternating current motor); optional test conditions of no-load test and load test; setting on-off frequency, and carrying out on-off test of applying rated voltage to the contactor; detecting on-off detection of a main/auxiliary contact resistance value, contact pull-in time and contact release time; data analysis (lifetime trends, etc.); lifetime determination (number of operations), and the like. Meanwhile, the device can also be used for the tests of the fault simulation of contactor coil voltage undervoltage, contactor coil voltage overvoltage, contact resistance value increase, contact short circuit and the like of the contactor, the aging of the contactor (material), the aging of non-metal material products such as rubber sealing elements and the like, the aging of circuit boards and the like.
The electric head contactor fault simulation detection system is a complete system capable of automatically detecting, controlling, displaying, analyzing and outputting, can simulate field loads (including heater load-resistance and motor load-reactance), realizes long-time uninterrupted continuous test operation of the contactor, can also module test environments and fault types required by the contactor, simultaneously displays various control parameters, environment parameter information, working parameter information and test processes through a visual, striking and friendly human-computer interaction (graph and table) interface, stores and prints test graphs, data tables and the like, and finally completes detection of electrical parameter information and mechanical parameter information of the contactor and analysis and evaluation of reliability.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (9)
1. A power head contactor fault simulation detection system, comprising:
a power head contactor unit built in the environmental simulation apparatus;
the environment simulation device is used for accommodating the electric head contactor unit, simulating the working environment of the electric head contactor unit and outputting the environment parameter information of the working environment;
the detection device is arranged on the electric head contactor and used for detecting the working parameter information of the electric head contactor;
the electric comprehensive controller is respectively connected with the electric head contactor unit, the environment simulation device and the detection device and is used for receiving the environment parameter information and the working parameter information; and
the PC is connected with the electric comprehensive controller and used for sending a first control instruction for controlling the environment simulation device and a second control instruction for controlling the electric head contactor unit, receiving environment parameter information and working parameter information from the electric comprehensive controller and simulating a test environment and a fault type required by the electric head contactor unit; the electric head contactor unit is also used for detecting and analyzing the electric parameter information and the mechanical parameter information of the electric head contactor unit according to the environmental parameter information and the working parameter information and outputting a fault detection result of the electric head contactor;
the environment simulation device comprises a vibration test bed and a constant-temperature constant-humidity salt fog comprehensive test box; the vibration test bed and the constant-temperature and constant-humidity salt fog comprehensive test box are respectively connected with the electric comprehensive controller; wherein the content of the first and second substances,
the constant-temperature and constant-humidity salt mist comprehensive test box is located on the vibration test bed, and the electric head contactor unit is located in the constant-temperature and constant-humidity salt mist comprehensive test box.
2. The system for simulating and detecting the fault of the power head contactor according to claim 1, wherein the vibration test bed is a spatial six-dimensional vibration test bed, and is used for providing six-dimensional vibration of 1-600 Hz according to the first control command, and displaying and outputting the current working frequency in real time.
3. The system for simulating and detecting the fault of the power head contactor according to claim 1, wherein the constant temperature and humidity salt fog comprehensive test chamber is a two-in-one comprehensive test chamber of a constant temperature and humidity test chamber and a humidity salt fog test chamber, and is configured to adjust the temperature, humidity, salt fog concentration and time information of the constant temperature and humidity salt fog comprehensive test chamber according to the first control instruction, and display and output the temperature, humidity and salt fog concentration information of the constant temperature and humidity salt fog comprehensive test chamber in real time.
4. The system according to claim 1, wherein the detection device includes a current sensor, a voltage sensor, a temperature sensor; the current sensor, the voltage sensor and the temperature sensor are respectively connected with the electric comprehensive controller;
the current sensor is used for detecting and outputting contact current information of the electric head contactor unit in real time;
the voltage sensor is used for detecting and outputting contact resistance voltage drop information of a contact of the electric head contactor unit in real time;
the temperature sensor is used for detecting and outputting the temperature information of the electric head contactor unit in real time.
5. The system for simulating and detecting the fault of the power head contactor according to claim 1, further comprising a pressure generating device, wherein the pressure generating device is respectively communicated with the electrical integrated controller and the constant temperature and humidity salt fog integrated test chamber, and is used for injecting or extracting air into or from the constant temperature and humidity salt fog integrated test chamber, and detecting and outputting an air pressure signal of the constant temperature and humidity salt fog integrated test chamber.
6. The system according to claim 1, further comprising a gas detection device, wherein the gas detection device is respectively communicated with the electrical integrated controller and the constant temperature and humidity salt fog integrated test chamber, and is used for detecting and outputting the gas concentration of the constant temperature and humidity salt fog integrated test chamber.
7. The system according to claim 1, wherein the electrical integrated controller includes a data acquisition unit and a data transmission unit, the data acquisition unit is respectively connected to the detection device and the environment simulation device, and is configured to acquire the operating parameter information of the detection device and the environment parameter information of the environment simulation device;
the data transmission unit is respectively connected with the PC and the environment simulation device, and is used for transmitting a first control instruction sent by the PC to the environment simulation device and transmitting a second control instruction sent by the PC to the electric head contactor unit.
8. The system according to claim 1, wherein the PC includes a processing unit, a first storage unit, a second storage unit, a display unit;
the processing unit is respectively connected with the first storage unit, the second storage unit and the display unit; the processing unit is used for sending a first control instruction and a second control instruction; the first storage unit is used for storing standard parameter information of the electric head contactor; the second storage unit is used for storing the environmental parameter information and the working parameter information from the electric comprehensive controller; the processing unit is also used for detecting and analyzing the electrical parameter information and the mechanical parameter information of the electric head contactor unit according to the environmental parameter information and the working parameter information, and outputting a fault detection result of the electric head contactor to the display unit for displaying.
9. The system according to claim 1, further comprising a printing device connected to said PC for printing said fault detection result.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710071871.6A CN106969894B (en) | 2017-02-09 | 2017-02-09 | Fault simulation detection system for electric head contactor |
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| CN201710071871.6A CN106969894B (en) | 2017-02-09 | 2017-02-09 | Fault simulation detection system for electric head contactor |
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| CN106969894A CN106969894A (en) | 2017-07-21 |
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| CN107390058B (en) * | 2017-07-25 | 2020-08-14 | 广东电网有限责任公司电力科学研究院 | Test method for evaluating live service performance of contact material of isolating switch |
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| CN107728043B (en) * | 2017-11-15 | 2020-08-28 | 奥士康科技股份有限公司 | Circuit board testing method and circuit board testing system |
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