CN210719673U - Mechanical characteristic testing device of high-voltage switch - Google Patents
Mechanical characteristic testing device of high-voltage switch Download PDFInfo
- Publication number
- CN210719673U CN210719673U CN201921834329.2U CN201921834329U CN210719673U CN 210719673 U CN210719673 U CN 210719673U CN 201921834329 U CN201921834329 U CN 201921834329U CN 210719673 U CN210719673 U CN 210719673U
- Authority
- CN
- China
- Prior art keywords
- module
- testing device
- control module
- voltage switch
- mechanical characteristic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The utility model discloses a mechanical characteristic testing arrangement of high voltage switch, including signal detection module, analog-to-digital conversion module, control module and power module etc, the input of signal detection module is connected with the high voltage switch electricity, the output of signal detection module with the input of analog-to-digital conversion module is connected, the output of analog-to-digital conversion module with the control module is connected, power module is used for to the control module power supply, control module is used for according to the signal received to the mechanical characteristic of high voltage switch carries out the analysis, and it adopts the modular design to make things convenient for change and the renewal of mechanical characteristic testing arrangement's spare part; moreover, the control module is an LPC1768FBD100 chip, and the data processing speed of the mechanical characteristic testing device is improved.
Description
Technical Field
The utility model relates to a high tension switchgear tests technical field, especially relates to a high tension switchgear's mechanical properties testing arrangement.
Background
The high-voltage switch is an important device in a power system, and when a power supply line fails, the high-voltage switch needs to make corresponding actions in time, otherwise, serious failure can be caused.
In order to ensure the safe operation of the high-voltage switch, the mechanical characteristics of the high-voltage switch need to be tested to know whether various parameters of the high-voltage switch are normal, so that the high-voltage switch is convenient to maintain and overhaul. The mechanical characteristic parameters of the high-voltage switch mainly refer to performance indexes of a moving contact and a static contact driven by a mechanical operating device in the switching-on and switching-off process, and the performance indexes comprise stroke, contact stroke, switching-on and switching-off speed, switching-on and switching-off average speed, switching-on and switching-off time, three-phase switching-off synchronism, switching-on contact average speed, switching-off time, switching-on contact bounce time, accumulated allowable wear thickness of the moving contact and the static contact and the like.
The high-voltage switch mechanical characteristic device mainly measures the parameters, and can calculate and display the moving speed and the moving stroke of the moving contact at any time and the moving speed and the moving time of the moving contact at any stroke, thereby accurately describing. However, the existing mechanical characteristic testing device for the high-voltage switch mostly adopts a control technology based on a single chip microcomputer, but due to the defects of low main frequency of a chip of the single chip microcomputer, deficient interface, easy breakdown, narrow power supply range, low data processing speed and the like, the increasingly developed requirements of electronic and chip technologies can not be met.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a high tension switchgear's mechanical properties testing arrangement, its simple structure and data processing are fast.
For realizing the purpose of the utility model, the technical proposal adopted by the utility model is as follows:
the mechanical characteristic testing device of the high-voltage switch comprises a signal detection module, an analog-to-digital conversion module, a control module and a power module, wherein the input end of the signal detection module is electrically connected with the high-voltage switch, the output end of the signal detection module is connected with the input end of the analog-to-digital conversion module, the output end of the analog-to-digital conversion module is connected with the control module, the power module is used for supplying power to the control module, and the control module is used for analyzing the mechanical characteristic of the high-voltage switch according to a received signal.
Preferably, the signal detection module comprises a photoelectric sensor, a linear sensor and an angular displacement sensor, wherein the photoelectric sensor is used for testing the speed parameter of the high-voltage switch and the average speed of the closing contact; the linear sensor and the angular displacement sensor are used for testing the stroke parameters of the high-voltage switch.
Preferably, the mechanical characteristic testing device further comprises a signal conditioning module, an input end of the signal conditioning module is connected with the photoelectric sensor, the linear sensor and the angular displacement sensor, and an output end of the signal conditioning module is connected with the analog-to-digital conversion module.
Preferably, the mechanical characteristic testing device further comprises a display module connected to the control module, and the display module is configured to display an analysis result of the control module.
Preferably, the mechanical characteristic testing device further includes a USB module connected to the control module, and the mechanical characteristic testing device stores the analysis result of the control module to the mobile terminal through the USB module.
Preferably, the mechanical characteristic testing device further includes a communication module connected to the control module, and the upper computer debugs the control module through the communication module.
Preferably, the mechanical characteristic testing device further comprises a keyboard module connected to the control module, and the keyboard module is used for inputting mechanical characteristic testing parameters of the high-voltage switch.
Preferably, the control module is an LPC1768FBD100 chip.
Compared with the prior art, the beneficial effects of the utility model reside in that:
the utility model discloses a mechanical characteristic testing device of a high-voltage switch, which comprises a signal detection module, an analog-to-digital conversion module, a control module, a power module and the like, and the mechanical characteristic testing device adopts a modular design to facilitate the replacement and the update of parts of the mechanical characteristic testing device; moreover, the control module is an LPC1768FBD100 chip, and the data processing speed of the mechanical characteristic testing device is improved.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention may be implemented according to the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more obvious and understandable, the following preferred embodiments are described in detail with reference to the accompanying drawings.
Drawings
Fig. 1 is a schematic structural diagram of a mechanical characteristic testing device of a high-voltage switch according to the present invention;
wherein the reference numerals in fig. 1 are:
1. a signal detection module; 2. a signal amplification driving module; 3. a control module; 4. a power supply module; 5. a high voltage switch; 6. a display module; 7. a USB module; 8. a communication module; 9. a keyboard module; 10. an external expansion module; 11. and (4) an upper computer.
Detailed Description
To further illustrate the technical means and effects of the present invention adopted to achieve the intended purpose of the present invention, the following detailed description is given to the embodiments, structures, features and effects according to the present invention with reference to the accompanying drawings and preferred embodiments as follows:
as shown in fig. 1, the utility model discloses a high tension switchgear's mechanical properties testing arrangement, including signal detection module 1, analog-to-digital conversion module, control module 3 and power module 4, signal detection module 1's input is connected with high tension switchgear 5 electricity, signal detection module 1's output with analog-to-digital conversion module's input is connected, analog-to-digital conversion module's output with control module 3 is connected, power module 4 be used for to control module 3 supplies power, control module 3 is used for right according to the signal of receiving high tension switchgear 5's mechanical properties carries out the analysis, and it adopts the modularized design to have made things convenient for mechanical properties testing arrangement's spare part's change and update.
The signal detection module 1 comprises a photoelectric sensor, a linear sensor and an angular displacement sensor, wherein the photoelectric sensor is used for testing the speed parameter of the high-voltage switch 5 and the average speed of a closing contact; the linear sensor and the angular displacement sensor are used for testing stroke parameters of the high-voltage switch 5, and specifically, the photoelectric sensor can be used for measuring speed parameters such as switching-on and switching-off speed, switching-on and switching-off average speed, switching-on and switching-off time, three-phase switching-off synchronism, switching-on contact average speed, switching-off time and switching-on contact bounce time of a moving contact and a static contact of the high-voltage switch 5 in a mechanical operation process; the linear sensor and the angular displacement sensor are used for measuring the stroke parameters of the moving contact and the static contact of the high-voltage switch 5 in the mechanical operation process, the contact stroke, the accumulated allowable abrasion thickness of the moving contact and the static contact and the like.
The mechanical characteristic testing device further comprises a signal conditioning module, wherein the input end of the signal conditioning module is connected with the photoelectric sensor, the linear sensor and the angular displacement sensor, and the output end of the signal conditioning module is connected with the analog-to-digital conversion module, so that the signals collected by the photoelectric sensor, the linear sensor and the angular displacement sensor are subjected to voltage division and filtering processing through the signal conditioning module, and voltage signals transmitted by the photoelectric sensor, the linear sensor and the angular displacement sensor are converted into voltage levels capable of being accepted by the analog-to-digital conversion module.
Specifically, the analog-to-digital conversion module is an ADC conversion module, and an input end of the ADC conversion module is connected to the photoelectric sensor, the linear sensor, and the angular displacement sensor through a shielding line. Moreover, the conversion speed of the ADC conversion module is 200KSPS, and the power consumption is 100 mW. The AD976A has good inheritance, and internally comprises a 2.52V reference voltage source, a high-speed parallel interface and a clock. All linearity errors of the chip are compensated and ac parameters such as signal-to-noise ratio and total harmonic distortion, i.e., misadjustment, gain and linearity, are fully tested. The precision is high, 16 bits are respectively rate, the maximum integral nonlinear error is only 2LSB, and 16 bits can be realized without disorder. The range is + -10V, the reference source of D796A is provided by high precision reference AD780, AD780 is 2.5V/3.0V high precision reference source of AD company, and 2.5V or 3.0V is output by the pin.
The mechanical characteristic testing device further comprises a display module 6 connected with the control module 3, wherein the display module 6 is used for displaying the analysis result of the control module 3, so that the display module 6 can display the analysis results of the contact stroke, the switching-on and switching-off speed, the switching-on and switching-off average speed, the switching-on and switching-off time, the three-phase switching-off synchronism, the switching-on and switching-off average speed, the switching-off time, the switching-on and switching-off bounce time, the accumulated allowable wear thickness of the movable contact and the static contact and the like of the movable contact and the static contact of the high-voltage switch 5 in the mechanical.
Specifically, the liquid crystal display screen of the display module 6 adopts a 6.4-inch resistance-type touch screen, the driving chip adopts ILI9341, the resolution is 320 × 480(RGB) and 65K colors, and the interface adopts a 16-bit 8080/6800 parallel port and is used for displaying a control process and a measurement result, and displaying various measured parameters, a stroke curve of the movable contact and a curve of each phase current.
The mechanical characteristic testing device further comprises an external memory module 10 connected with the control module 3, wherein the external memory module 10 is used for storing the analysis result of the control module 3, so that the analysis result of the control module can be stored through the external memory module 10.
The mechanical characteristic testing device further comprises a USB module 7 connected with the control module 3, the mechanical characteristic testing device stores the analysis result of the control module 3 to a mobile terminal through the USB module 7, and therefore the analysis result of the control module 3 is transmitted to the mobile terminal such as a USB flash disk through the USB module 7.
Specifically, the USB module 7 is provided with a USB HOST interface module, and the USB HOST interface can be extended by using this module, and data of the mechanical characteristic measurement apparatus of the high-voltage switch cabinet can be stored in a USB disk or other mobile storage devices, so that the analysis result of the control module 3 can be further analyzed by using other devices.
The mechanical characteristic testing device further comprises a communication module 8 connected with the control module 3, the upper computer 11 is used for debugging the control module 3 through the communication module 8, during specific setting, the communication module 8 comprises a network transformer and a physical layer chip, and the upper computer 11 is used for debugging the control module 3 through the network transformer and the physical layer chip.
The mechanical characteristic testing device further comprises a keyboard module 9 connected with the control module 3, wherein the keyboard module 9 is used for inputting mechanical characteristic testing parameters of the high-voltage switch 5, so that a tester can test the mechanical performance of the high-voltage switch 5 according to actual testing requirements.
The control module 3 is an LPC1768FBD100 chip, the LPC1768FBD100 chip is a high-performance low-power-consumption Cortex-M3 kernel architecture chip, the working main frequency of the ARM chip is 120MHz, the ARM chip has extremely high computing capability and interrupt response capability, a vector interrupt controller is built in, new DSP and FPU instructions are integrated, the application of a digital signal processor and rapid product development reach a new level due to the high-speed performance of 120MHz, and the execution speed and the code efficiency of a control algorithm are improved; meanwhile, a 90-nanometer NVM process and a self-adaptive real-time memory accelerator are adopted, so that the program is executed with zero waiting, and the program execution efficiency is improved; a DMA controller of 8 channels; integrating an Ethernet MAC with an RII interface; have an SRAM in 192KBx16bit, possess rich peripheral interface: the USB OTG interface of 480Mbit/s accords with a 10/100M Ethernet MAC interface of IEEE1588, the PWM timer can reach a high-speed UART interface of 10.5Mbit/s and can reach a high-speed SPI interface of 37.5 Mbit/s.
In order to amplify the low-current low-power signal generated by the LPC1768FBD100 chip into a high-current high-power signal to generate a fault signal for driving the high-voltage switch 5, the mechanical characteristic testing device further comprises a signal amplification driving module 2 connected to the control module 3.
The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention cannot be limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are all within the protection scope of the present invention.
Claims (9)
1. A mechanical characteristic testing device of a high-voltage switch is characterized in that: the high-voltage switch power supply comprises a signal detection module, an analog-to-digital conversion module, a control module and a power supply module, wherein the input end of the signal detection module is electrically connected with a high-voltage switch, the output end of the signal detection module is connected with the input end of the analog-to-digital conversion module, the output end of the analog-to-digital conversion module is connected with the control module, the power supply module is used for supplying power to the control module, and the control module is used for analyzing the mechanical characteristics of the high-voltage switch according to received signals.
2. The mechanical property testing device of claim 1, wherein: the signal detection module comprises a photoelectric sensor, a linear sensor and an angular displacement sensor, wherein the photoelectric sensor is used for testing the speed parameter of the high-voltage switch and the average speed of a closing contact; the linear sensor and the angular displacement sensor are used for testing the stroke parameters of the high-voltage switch.
3. The mechanical property testing device of claim 2, wherein: the mechanical characteristic testing device further comprises a signal conditioning module, wherein the input end of the signal conditioning module is connected with the photoelectric sensor, the linear sensor and the angular displacement sensor, and the output end of the signal conditioning module is connected with the analog-to-digital conversion module.
4. The mechanical property testing device of claim 3, wherein: the mechanical characteristic testing device further comprises a display module connected with the control module, and the display module is used for displaying the analysis result of the control module.
5. The mechanical property testing device of claim 3, wherein: the mechanical characteristic testing device further comprises an external expansion and storage module connected with the control module, and the external expansion and storage module is used for storing the analysis result of the control module.
6. The mechanical property testing device of claim 3, wherein: the mechanical characteristic testing device further comprises a USB module connected with the control module, and the mechanical characteristic testing device stores the analysis result of the control module to the mobile terminal through the USB module.
7. The mechanical property testing device of claim 3, wherein: the mechanical characteristic testing device further comprises a communication module connected with the control module, and the upper computer debugs the control module through the communication module.
8. The mechanical property testing device of claim 3, wherein: the mechanical characteristic testing device also comprises a keyboard module connected with the control module, and the keyboard module is used for inputting mechanical characteristic testing parameters of the high-voltage switch.
9. The mechanical property testing device according to any one of claims 1 to 8, wherein: the control module is an LPC1768FBD100 chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921834329.2U CN210719673U (en) | 2019-10-29 | 2019-10-29 | Mechanical characteristic testing device of high-voltage switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921834329.2U CN210719673U (en) | 2019-10-29 | 2019-10-29 | Mechanical characteristic testing device of high-voltage switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210719673U true CN210719673U (en) | 2020-06-09 |
Family
ID=70936090
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921834329.2U Active CN210719673U (en) | 2019-10-29 | 2019-10-29 | Mechanical characteristic testing device of high-voltage switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210719673U (en) |
-
2019
- 2019-10-29 CN CN201921834329.2U patent/CN210719673U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105606300B (en) | A kind of battery-operated type strains multi-dimension force sensor fault diagnosis system | |
| CN202815191U (en) | Storage battery internal resistance measuring device | |
| CN205038273U (en) | Measurement device for earthing device power frequency and impact characteristic parameter | |
| CN201096849Y (en) | A high level voltage measuring system for high-voltage DC transmission conversion valve | |
| CN103383443B (en) | Modularization three-phase instrument calibration device used for intelligent electric network | |
| CN209215480U (en) | A kind of three-phase and four-line intelligent meter of independent measurement neutral line current | |
| CN210719673U (en) | Mechanical characteristic testing device of high-voltage switch | |
| CN206945947U (en) | A kind of testing device of digital electric energy meter for sampling Detection | |
| CN102981069A (en) | Electric energy comprehensive information acquisition terminal | |
| CN210136298U (en) | General calibrating device of aviation guarantee equipment electrical parameter | |
| CN203587710U (en) | Driving board test device for frequency converter | |
| CN210572510U (en) | Handheld transformer transformation ratio group tester | |
| CN201196672Y (en) | High-precision switching value detecting instrument | |
| CN203084079U (en) | Intelligent ammeter control system | |
| CN107797003B (en) | Virtual load test device and method for detecting metering performance of charging pile | |
| CN206891372U (en) | A kind of portable power cable length-measuring appliance | |
| CN204203453U (en) | Portable single-phase multifunctional electrical energy meter calibration instrument | |
| CN201926753U (en) | Voltmeter/ammeter tester based on non-contact potentiometer | |
| CN202995019U (en) | Multifunctional alternating current and direct current measuring instrument | |
| CN203672928U (en) | Novel guide rail type three-phase power meter hardware platform | |
| CN202837446U (en) | Subcircuit monitor | |
| CN210953372U (en) | High-voltage switch mechanical characteristic tester | |
| CN102928702A (en) | Branch loop monitor | |
| CN102467860A (en) | Electrical detection machine of liquid crystal display | |
| CN112269062B (en) | Valve section module element impedance tester |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |