CN111751715B - Be applied to primary loop detection device of circuit breaker - Google Patents
Be applied to primary loop detection device of circuit breaker Download PDFInfo
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- CN111751715B CN111751715B CN202010408659.6A CN202010408659A CN111751715B CN 111751715 B CN111751715 B CN 111751715B CN 202010408659 A CN202010408659 A CN 202010408659A CN 111751715 B CN111751715 B CN 111751715B
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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
- G01R31/327—Testing of circuit interrupters, switches or circuit-breakers
- G01R31/3271—Testing of circuit interrupters, switches or circuit-breakers of high voltage or medium voltage devices
- G01R31/3272—Apparatus, systems or circuits therefor
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
- G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
- G01R27/025—Measuring very high resistances, e.g. isolation resistances, i.e. megohm-meters
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
- G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
- G01R27/14—Measuring resistance by measuring current or voltage obtained from a reference source
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
- G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
- G01R27/26—Measuring inductance or capacitance; Measuring quality factor, e.g. by using the resonance method; Measuring loss factor; Measuring dielectric constants ; Measuring impedance or related variables
- G01R27/2688—Measuring quality factor or dielectric loss, e.g. loss angle, or power factor
- G01R27/2694—Measuring dielectric loss, e.g. loss angle, loss factor or power factor
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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
- G01R31/327—Testing of circuit interrupters, switches or circuit-breakers
- G01R31/3277—Testing of circuit interrupters, switches or circuit-breakers of low voltage devices, e.g. domestic or industrial devices, such as motor protections, relays, rotation switches
Abstract
The invention discloses a primary loop detection device applied to a circuit breaker, which comprises a main control module, a measurement module, a motor switching module, a high-voltage power supply module and a low-voltage power supply module, wherein the measurement module comprises a loop resistance measurement module, a dielectric loss and insulation resistance measurement module and a mechanical characteristic measurement module; the input end of the loop resistance measuring module is respectively connected with the high-voltage power supply module and the low-voltage power supply module, and the output end of the loop resistance measuring module is connected with the main control module; the input end of the dielectric loss and insulation resistance measuring module is respectively connected with the high-voltage power supply module and the low-voltage power supply module, and the output end of the dielectric loss and insulation resistance measuring module is connected with the main control module; the input end of the mechanical characteristic measuring module is respectively connected with the high-voltage power supply module and the low-voltage power supply module, and the output end of the mechanical characteristic measuring module is connected with the main control module; the motor switching module is respectively connected with the high-voltage power supply module and the low-voltage power supply module. The device collects multiple test function in an organic whole, and the practicality is high.
Description
Technical Field
The invention relates to the technical field of electric power, in particular to a primary loop detection device applied to a circuit breaker.
Background
In the development of a breaker test, multiple instruments applied to different detection items are generally required to be carried, and the conditions of instrument leakage or accessories and the like are easy to occur, so that the test cannot be developed on time, the recovery power transmission time is influenced, and the working efficiency is low. In addition, because the space position of the circuit breaker is high, wiring disconnection and instrument replacement need to be frequently ascended when different detection items are carried out, the safety problems of testers and tester equipment are threatened by strong induction electricity generated in the process, the operation risk is increased, and the technical requirements on the testers are high. At present, no device integrating different detection functions into a whole is provided.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, and provides a primary loop detection device applied to a circuit breaker.
Correspondingly, the embodiment of the invention provides a primary circuit detection device applied to a circuit breaker, which comprises a main control module, a measurement module, a motor switching module, a high-voltage power supply module and a low-voltage power supply module, wherein the measurement module comprises a circuit resistance measurement module, a dielectric loss and insulation resistance measurement module and a mechanical characteristic measurement module;
the input end of the loop resistance measuring module is respectively connected with the high-voltage power supply module and the low-voltage power supply module, and the output end of the loop resistance measuring module is connected with the main control module;
the input end of the dielectric loss and insulation resistance measuring module is respectively connected with the high-voltage power supply module and the low-voltage power supply module, and the output end of the dielectric loss and insulation resistance measuring module is connected with the main control module;
the input end of the mechanical characteristic measuring module is respectively connected with the high-voltage power supply module and the low-voltage power supply module, and the output end of the mechanical characteristic measuring module is connected with the main control module;
the high-voltage power supply module is connected with the motor switching module, and the low-voltage power supply module is connected with the motor switching module.
Optionally, the high-voltage power module comprises a high-voltage slider negative plate, a mechanical characteristic slider negative plate and a reverse-blocking slider negative plate, the high-voltage slider negative plate is connected with the dielectric loss and insulation resistance measurement module, the mechanical characteristic slider negative plate is connected with the mechanical characteristic measurement module, and the reverse-blocking slider negative plate is connected with the loop resistance measurement module.
Optionally, the low voltage power module includes insulating dielectric loss slider positive plate, mechanical property slider positive plate and hinders the positive plate of sliding block again, insulating dielectric loss slider positive plate is connected dielectric loss and insulation resistance measurement module, mechanical property slider positive plate is connected mechanical property measurement module, it connects to hinder the sliding block positive plate return circuit resistance measurement module.
Optionally, the positive plate of the reverse-blocking sliding block comprises a first positive plate of the reverse-blocking sliding block, a second positive plate of the reverse-blocking sliding block, a third positive plate of the reverse-blocking sliding block, a fourth positive plate of the reverse-blocking sliding block, a fifth positive plate of the reverse-blocking sliding block, and a sixth positive plate of the reverse-blocking sliding block.
Optionally, the loop resistance measuring module includes a loop resistance measuring board and a 100A power supply unit, and the loop resistance measuring board is connected to the 100A power supply unit;
the 100A power supply unit is respectively connected with the positive plate of the back-blocking sliding block and the negative plate of the back-blocking sliding block, and the control end of the 100A power supply unit is connected with the main control module;
the input end of the loop resistance measuring plate is connected with the back-blocking slide negative plate and the back-blocking slide positive plate respectively, and the output end of the loop resistance measuring plate is connected with the main control module.
Optionally, the dielectric loss and insulation resistance measuring module includes an ac/dc power switching unit and a dielectric loss and insulation resistance measuring board;
the alternating current-direct current power supply switching unit is connected with the high-voltage slider negative plate, the input end of the dielectric loss and insulation resistance measuring plate is respectively connected with the high-voltage slider negative plate and the insulation dielectric loss slider positive plate, and the output end of the dielectric loss and insulation resistance measuring plate is connected with the main control module.
Optionally, the alternating current/direct current power supply switching unit includes a 10kV alternating current power supply unit, a 2.5kV direct current power supply unit, a low-voltage relay, an isolation transformer and a 12kV high-voltage relay;
the 10kV alternating-current power supply unit is connected with the low-voltage relay, the low-voltage relay is connected with the 12kV high-voltage relay through the isolation transformer, and the 12kV high-voltage relay is connected with the high-voltage slider negative plate; the 2.5kV direct-current power supply unit is connected with the 12kV high-voltage relay and is connected with the high-voltage slider negative plate through the 12kV high-voltage relay.
Optionally, the mechanical characteristic measurement module includes an FPGA processing unit, a sampling unit, a speed and coil resistance measurement board, and a 10A constant current board;
the control end of the 10A constant current plate is connected with the FPGA processing unit, and the output end of the 10A constant current plate is respectively connected with the mechanical property slider negative plate and the mechanical property slider positive plate;
the input end of the sampling unit is respectively connected with the mechanical property slide block negative plate and the mechanical property slide block positive plate, the input end of the FPGA processing unit is respectively connected with the output end of the sampling unit and the speed and coil resistance measuring plate, and the output end of the FPGA processing unit is connected with the main control module.
Optionally, the high-voltage power supply module further includes a high-voltage negative wiring port, the low-voltage power supply module further includes a low-voltage positive wiring port, and the motor switching module includes a first motor switching board and a second motor switching board;
the first motor switching plate is used for switching connection between the high-voltage negative wiring port and different slider negative plates in the high-voltage power supply module; and the second motor switching plate is used for switching the connection between the low-voltage positive wiring port and different slide block positive plates in the low-voltage power supply module.
Optionally, the main control module is an ARM9 main control board.
The invention provides a primary circuit detection device applied to a circuit breaker, wherein a plurality of measurement plates with different functions are integrated in the device, so that the detection function of parameters such as mechanical characteristics, loop resistance, insulation resistance, dielectric loss and the like of the circuit breaker can be realized, a test instrument does not need to be replaced, the power failure time is shortened, and the device has better practicability; can realize the switching test work to different parameters in the circuit breaker through the motor switching module, the measurement process is simple and convenient reliable, through the mode of once working a telephone switchboard with the experimental safe risk of greatly reduced, improve work efficiency simultaneously.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic structural composition diagram of a primary circuit detection device applied to a circuit breaker according to an embodiment of the present invention;
fig. 2 is a schematic diagram of an internal circuit structure of a primary circuit detection device applied to a circuit breaker according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Fig. 1 is a schematic structural composition diagram of a primary circuit detection device applied to a circuit breaker in an embodiment of the present invention, where the detection device includes a main control module, a measurement module, a motor switching module, a high-voltage power supply module, and a low-voltage power supply module, and the measurement module includes a circuit resistance measurement module, a dielectric loss and insulation resistance measurement module, and a mechanical characteristic measurement module.
Basically, the input end of the loop resistance measuring module is connected to the high-voltage power supply module and the low-voltage power supply module respectively, and the output end of the loop resistance measuring module is connected to the main control module; the input end of the dielectric loss and insulation resistance measuring module is respectively connected with the high-voltage power supply module and the low-voltage power supply module, and the output end of the dielectric loss and insulation resistance measuring module is connected with the main control module; the input end of the mechanical characteristic measuring module is respectively connected with the high-voltage power supply module and the low-voltage power supply module, and the output end of the mechanical characteristic measuring module is connected with the main control module; the high-voltage power supply module is connected with the motor switching module, and the low-voltage power supply module is connected with the motor switching module.
Specifically, the high-voltage power supply module comprises a high-voltage negative wiring port, the low-voltage power supply module comprises a low-voltage positive wiring port, and the circuit breaker comprises a three-way circuit breaker group, so that the high-voltage negative wiring port and the low-voltage positive wiring port are respectively and correspondingly connected with three interfaces of each circuit breaker in the circuit breaker, and the circuit breaker is connected to the device for detection; then, because each sub-measurement module in the measurement module is independent and correspondingly executes different parameter test work, the main control module drives a corresponding sub-measurement module to work according to test requirements, and meanwhile, the motor switching module performs internal module switching on the high-voltage power supply module and the low-voltage power supply module according to the test requirements so as to provide proper power supply conditions for the sub-measurement module; and finally, the main control module transmits the acquisition result of the sub-measurement module to an upper computer through the network port based on the connected network switch to complete data analysis and result display. The main control module in the embodiment of the invention is an ARM9 main control board, and only plays roles of communication switching and some auxiliary measurement, such as grounding judgment and the like.
Fig. 2 is a schematic diagram of an internal circuit structure of a primary circuit detection device applied to a circuit breaker in an embodiment of the present invention, and each module in the device is further described based on fig. 2:
the high-voltage power supply module further comprises a high-voltage slider negative plate, a mechanical characteristic slider negative plate and a reverse-resistance slider negative plate, the high-voltage slider negative plate is connected with the dielectric loss and insulation resistance measuring module, the mechanical characteristic slider negative plate is connected with the mechanical characteristic measuring module, and the reverse-resistance slider negative plate is connected with the loop resistance measuring module. The high-voltage power supply module is actually a wiring medium between different measuring circuits and the public end of the circuit breaker, and the labor intensity of frequent wire replacement is reduced.
The low-voltage power supply module further comprises an insulating dielectric loss sliding block positive plate, a mechanical property sliding block positive plate and a return resistance sliding block positive plate, wherein the insulating dielectric loss sliding block positive plate is connected with the dielectric loss and insulation resistance measuring module, the mechanical property sliding block positive plate is connected with the mechanical property measuring module, and the return resistance sliding block positive plate is connected with the return resistance sliding block measuring module. It should be noted that, when the blocking slider positive electrode plate tests the blocking characteristic of the circuit breaker, the two loop resistances corresponding to each circuit breaker in the circuit breaker are measured according to a regular rule, so the blocking slider positive electrode plate includes a first blocking slider positive electrode plate A1, a second blocking slider positive electrode plate A2, a third blocking slider positive electrode plate B1, a fourth blocking slider positive electrode plate B2, a fifth blocking slider positive electrode plate C1, and a sixth blocking slider positive electrode plate C2.
In order to realize the automatic detection performance of the device, the motor switching module comprises a first motor switching plate and a second motor switching plate, the first motor switching plate is used for switching the connection between the high-voltage negative wiring port and different slide block negative plates in the high-voltage power supply module and is used for setting the working state of a public end of each circuit breaker in the circuit breakers; the second motor switching plate is used for switching connection between the low-voltage positive wiring port and different slide block positive plates in the low-voltage power supply module, and is used for setting a wiring end test state of each circuit breaker in the circuit breakers, and the first motor switching plate and the second motor switching plate need to be matched with each other when a switching instruction is executed.
It should be noted that, the motor switching module is provided with six stepping motors for promoting the connection between the electrode plates and the wiring ports, each stepping motor correspondingly drives two electrode plates, and the two corresponding electrode plates are controlled to be respectively connected or disconnected with the wiring ports through the forward and backward movements of each stepping motor, so as to realize the switching test work of different parameters in the circuit breaker, and the cost of the device can be saved.
Furthermore, the loop resistance measuring module comprises a loop resistance measuring plate and a 100A power supply unit, and the loop resistance measuring plate is connected with the 100A power supply unit. The 100A power supply unit is respectively connected with the positive plate of the back-blocking sliding block and the negative plate of the back-blocking sliding block, and the control end of the 100A power supply unit is connected with the main control module; the input end of the loop resistance measuring plate is connected with the back-blocking slide negative plate and the back-blocking slide positive plate respectively, and the output end of the loop resistance measuring plate is connected with the main control module.
The circuit resistance measurement principle of the circuit breaker is converted by using the voltage drop generated by the direct current passing through each circuit of the circuit breaker. Because the contact resistance between the moving contact and the static contact of the circuit breaker is generally dozens of microohms to dozens of microohms, the voltage drop measured by the 100A current which is often used in the conventional test is several millivolts, if smaller current is adopted, the voltage drop is smaller, and the voltage signals of two test points are difficult to accurately acquire; with higher currents, the requirements on the breaker leads are increased.
The following description will be given by taking the example of testing the loop resistance of the a-phase circuit breaker (i.e., the first circuit breaker) in the circuit breaker: when the port A1 and the COM port of the phase-A circuit breaker are in a low-voltage state, namely the first positive pole plate A1 of the blocking slider is connected with the low-voltage positive wiring port and the negative pole plate of the blocking slider is connected with the high-voltage negative wiring port, the output current of the 100A power supply unit forms a loop from the port A1 of the phase-A circuit breaker to the COM port, and meanwhile, the loop resistance measuring plate measures the voltage drop generated by the loop.
Further, the dielectric loss and insulation resistance measuring module comprises an alternating current/direct current power supply switching unit and a dielectric loss and insulation resistance measuring plate; the alternating current-direct current power supply switching unit is connected with the high-voltage slider negative plate, the input end of the dielectric loss and insulation resistance measuring plate is respectively connected with the high-voltage slider negative plate and the insulation dielectric loss slider positive plate, and the output end of the dielectric loss and insulation resistance measuring plate is connected with the main control module. The dielectric loss and insulation resistance measuring board is used for measuring the insulation characteristics of the circuit breaker and essentially comprises dielectric loss measurement and insulation resistance measurement of the circuit breaker.
The alternating current and direct current power supply switching unit comprises a 10kV alternating current power supply unit, a 2.5kV direct current power supply unit, a low-voltage relay, an isolation transformer and a 12kV high-voltage relay; the 10kV alternating-current power supply unit is connected with the low-voltage relay, the low-voltage relay is connected with the 12kV high-voltage relay through the isolation transformer, and the 12kV high-voltage relay is connected with the high-voltage slider negative plate; the 2.5kV direct-current power supply unit is connected with the 12kV high-voltage relay, and the 12kV high-voltage relay is connected with the high-voltage slider negative plate.
In the embodiment of the invention, the medium loss of the breaker fracture is measured, a positive wiring mode is adopted, under the condition that the breaker has enough insulation level, a test voltage larger than or equal to 10kV is applied to the breaker, here, 10kV high voltage of the 10kV alternating current power supply unit is applied to the COM end of the breaker by conducting a pin 1 and a pin 2 of the low-voltage relay and conducting a pin 1 and a pin 2 of the 12kV high-voltage relay, and six low-voltage ends of the breaker are simultaneously connected to the dielectric loss and insulation resistance measuring plate; at the moment, the dielectric loss and insulation resistance measuring plate collects high-voltage signals through a standard capacitor with the capacitance value of 50P, collects current signals of the circuit breaker, analyzes and calculates the high-voltage signals and the current signals by utilizing fast Fourier transform, and obtains the fracture capacitance capacity and the dielectric loss value of the circuit breaker.
The embodiment of the invention measures the insulation resistance of the circuit breaker by applying direct current voltage to the circuit breaker and acquiring the insulation resistance by collecting leakage current flowing through the circuit breaker after polarization for a certain time. Applying 2.5kV direct-current voltage of the 2.5kV direct-current power supply unit to a COM end of the circuit breaker by conducting a pin 2 and a pin 3 of the 12kV high-voltage relay, and simultaneously connecting six low-voltage ends of the circuit breaker into the dielectric loss and insulation resistance measuring plate; at the moment, the dielectric loss and insulation resistance measuring plate collects high-voltage signals through a standard resistor which is connected with the dielectric loss and insulation resistance measuring plate and has the resistance value of 100M, meanwhile, leakage current signals flowing through the circuit breaker are collected, and the insulation resistance value of the circuit breaker is obtained through division operation.
It should be noted that the device is used as a primary device, a secondary interface is reserved for the secondary device to control, measure and protect the device, and part of functions of the 10kV alternating-current power supply unit are applied to the measurement work of the secondary device, so the low-voltage relay can control the application occasion of the 10kV alternating-current power supply unit, so that the 10kV alternating-current power supply unit can be used for many times.
Furthermore, the mechanical characteristic measuring module comprises an FPGA processing unit, a sampling unit, a speed and coil resistance measuring plate and a 10A constant current plate. The control end of the 10A constant current plate is connected with the FPGA processing unit, and the output end of the 10A constant current plate is respectively connected with the mechanical property slider negative plate and the mechanical property slider positive plate; the input end of the sampling unit is respectively connected with the mechanical property slide block negative plate and the mechanical property slide block positive plate, the input end of the FPGA processing unit is respectively connected with the output end of the sampling unit and the speed and coil resistance measuring plate, and the output end of the FPGA processing unit is connected with the main control module.
The sampling unit comprises a mechanical characteristic sampling plate 1 and a mechanical characteristic sampling plate 2, each sampling plate controls three main circuits in the circuit breaker, and one main circuit corresponds to one circuit breaker in the circuit breaker. In the implementation process, the 10A constant current board provides 10A constant current for six paths of graphite contacts of the circuit breaker, dynamic resistance waveforms of switch fractures of the six paths of graphite contacts are sampled through the sampling unit and stored in the FPGA processing unit. In addition, the speed and coil resistance measuring plate needs to acquire the opening and closing speed and speed waveform of the circuit breaker by means of an external speed sensor during operation, and based on an operation power supply and an opening and closing feedback signal of a micro-control module, the Hall output of the opening and closing coils of the circuit breaker is sampled and stored in the FPGA processing unit.
In addition, the device also comprises a switch power supply module and an alarm module, wherein the switch power supply module comprises an air switch 3P and an alternating current 220V input port, the alternating current 220V input port is connected with peripheral power supply equipment to get electricity when the device operates, and the electrifying state of the device is controlled through the air switch 3P; the switching power supply module also comprises a 24V switching power supply and a standby battery which are used for maintaining the normal work of the main control module, and a charger which is matched with the standby battery for power storage; alarm module includes warning light and bee calling organ, can be right the abnormal phenomena of each measuring result of circuit breaker warns.
The invention provides a primary circuit detection device applied to a circuit breaker, wherein a plurality of measurement plates with different functions are integrated in the device, so that the detection function of parameters such as mechanical characteristics, loop resistance, insulation resistance, dielectric loss and the like of the circuit breaker can be realized, a test instrument does not need to be replaced, the power failure time is shortened, and the device has better practicability; can realize the switching test work to different parameters in the circuit breaker through the motor switching module, the measurement process is simple and convenient reliable, through the mode of once working a telephone switchboard with the experimental safe risk of greatly reduced, improve work efficiency simultaneously.
In addition, the above detailed description is provided for the primary circuit detection device applied to the circuit breaker, and a specific example should be adopted herein to explain the principle and the implementation of the present invention, and the above description of the embodiment is only used to help understanding the method of the present invention and the core idea thereof; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (8)
1. A primary loop detection device applied to a circuit breaker is characterized by comprising a main control module, a measurement module, a motor switching module, a high-voltage power supply module and a low-voltage power supply module, wherein the measurement module comprises a loop resistance measurement module, a dielectric loss and insulation resistance measurement module and a mechanical characteristic measurement module;
the input end of the loop resistance measuring module is respectively connected with the high-voltage power supply module and the low-voltage power supply module, and the output end of the loop resistance measuring module is connected with the main control module;
the input end of the dielectric loss and insulation resistance measuring module is respectively connected with the high-voltage power supply module and the low-voltage power supply module, and the output end of the dielectric loss and insulation resistance measuring module is connected with the main control module;
the input end of the mechanical characteristic measuring module is respectively connected with the high-voltage power supply module and the low-voltage power supply module, and the output end of the mechanical characteristic measuring module is connected with the main control module;
the high-voltage power supply module is connected with the motor switching module, and the low-voltage power supply module is connected with the motor switching module;
the high-voltage power supply module comprises a high-voltage slider negative plate, a mechanical characteristic slider negative plate and a reverse-resistance slider negative plate, the high-voltage slider negative plate is connected with the dielectric loss and insulation resistance measuring module, the mechanical characteristic slider negative plate is connected with the mechanical characteristic measuring module, and the reverse-resistance slider negative plate is connected with the loop resistance measuring module;
the low voltage power module comprises an insulating dielectric loss sliding block positive plate, a mechanical property sliding block positive plate and a return resistance sliding block positive plate, wherein the insulating dielectric loss sliding block positive plate is connected with the dielectric loss and insulation resistance measuring module, the mechanical property sliding block positive plate is connected with the mechanical property measuring module, and the return resistance sliding block positive plate is connected with the return resistance measuring module.
2. The primary loop test device of claim 1, wherein the positive reverse-blocking shoe plate comprises a first positive reverse-blocking shoe plate, a second positive reverse-blocking shoe plate, a third positive reverse-blocking shoe plate, a fourth positive reverse-blocking shoe plate, a fifth positive reverse-blocking shoe plate, and a sixth positive reverse-blocking shoe plate.
3. The primary loop detection device according to claim 1, wherein the loop resistance measurement module comprises a loop resistance measurement board and a 100A power supply unit, the loop resistance measurement board is connected to the 100A power supply unit;
the 100A power supply unit is respectively connected with the positive plate of the back-blocking sliding block and the negative plate of the back-blocking sliding block, and the control end of the 100A power supply unit is connected with the main control module;
the input end of the loop resistance measuring plate is connected with the negative plate and the positive plate of the back blocking sliding block respectively, and the output end of the loop resistance measuring plate is connected with the main control module.
4. The primary loop detection device according to claim 1, wherein the dielectric loss and insulation resistance measurement module comprises an ac/dc power switching unit and a dielectric loss and insulation resistance measurement board;
the alternating current-direct current power supply switching unit is connected with the high-voltage slider negative plate, the input end of the dielectric loss and insulation resistance measuring plate is respectively connected with the high-voltage slider negative plate and the insulation dielectric loss slider positive plate, and the output end of the dielectric loss and insulation resistance measuring plate is connected with the main control module.
5. The primary loop detection device according to claim 4, wherein the AC/DC power switching unit comprises a 10kV AC power supply unit, a 2.5kV DC power supply unit, a low-voltage relay, an isolation transformer and a 12kV high-voltage relay;
the 10kV alternating-current power supply unit is connected with the low-voltage relay, the low-voltage relay is connected with the 12kV high-voltage relay through the isolation transformer, and the 12kV high-voltage relay is connected with the high-voltage slider negative plate; the 2.5kV direct-current power supply unit is connected with the 12kV high-voltage relay and is connected with the high-voltage slider negative plate through the 12kV high-voltage relay.
6. The primary loop detection device according to claim 1, wherein the mechanical property measurement module comprises an FPGA processing unit, a sampling unit, a speed and coil resistance measurement board and a 10A constant current board;
the control end of the 10A constant current plate is connected with the FPGA processing unit, and the output end of the 10A constant current plate is respectively connected with the mechanical property slide block negative plate and the mechanical property slide block positive plate;
the input end of the sampling unit is connected with the mechanical property slider negative plate and the mechanical property slider positive plate respectively, the input end of the FPGA processing unit is connected with the output end of the sampling unit and the speed and coil resistance measuring plate respectively, and the output end of the FPGA processing unit is connected with the main control module.
7. The primary loop detection device of claim 1, wherein the high voltage power module further comprises a high voltage negative connection port, the low voltage power module further comprises a low voltage positive connection port, the motor switching module comprises a first motor switch board and a second motor switch board;
the first motor switching plate is used for switching connection between the high-voltage negative wiring port and different slider negative plates in the high-voltage power supply module; and the second motor switching plate is used for switching the connection between the low-voltage positive wiring port and different slide block positive plates in the low-voltage power supply module.
8. The primary loop detection device of claim 1, wherein the master control module is an ARM9 master control board.
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103472354A (en) * | 2013-09-26 | 2013-12-25 | 无锡智卓电气有限公司 | Switching-closing judging circuit of electric leakage reclosure breaker |
| CN104127234A (en) * | 2014-07-22 | 2014-11-05 | 西南交通大学 | High-frequency electrotome experiment device |
| CN106444727A (en) * | 2016-11-30 | 2017-02-22 | 滁州学院 | Programmable lumped remote measurement and control device for smart miniature circuit breaker |
| CN108037449A (en) * | 2018-01-03 | 2018-05-15 | 广西电网有限责任公司电力科学研究院 | A kind of high-voltage circuitbreaker automatic checkout system |
| CN108037450A (en) * | 2018-01-03 | 2018-05-15 | 广西电网有限责任公司电力科学研究院 | A kind of high-voltage circuitbreaker automatic detection device and detection method |
| CN207742309U (en) * | 2018-01-03 | 2018-08-17 | 广西电网有限责任公司电力科学研究院 | A kind of high-voltage circuitbreaker automatic detection device |
| CN108680772A (en) * | 2018-06-11 | 2018-10-19 | 广西电网有限责任公司电力科学研究院 | A kind of high-voltage circuitbreaker second trial interface arrangement and its test method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107884707B (en) * | 2017-09-30 | 2018-12-21 | 杨启蓓 | High-voltage circuit-breaker switching on-off time on-Line Monitor Device and method |
-
2020
- 2020-05-14 CN CN202010408659.6A patent/CN111751715B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103472354A (en) * | 2013-09-26 | 2013-12-25 | 无锡智卓电气有限公司 | Switching-closing judging circuit of electric leakage reclosure breaker |
| CN104127234A (en) * | 2014-07-22 | 2014-11-05 | 西南交通大学 | High-frequency electrotome experiment device |
| CN106444727A (en) * | 2016-11-30 | 2017-02-22 | 滁州学院 | Programmable lumped remote measurement and control device for smart miniature circuit breaker |
| CN108037449A (en) * | 2018-01-03 | 2018-05-15 | 广西电网有限责任公司电力科学研究院 | A kind of high-voltage circuitbreaker automatic checkout system |
| CN108037450A (en) * | 2018-01-03 | 2018-05-15 | 广西电网有限责任公司电力科学研究院 | A kind of high-voltage circuitbreaker automatic detection device and detection method |
| CN207742309U (en) * | 2018-01-03 | 2018-08-17 | 广西电网有限责任公司电力科学研究院 | A kind of high-voltage circuitbreaker automatic detection device |
| CN108680772A (en) * | 2018-06-11 | 2018-10-19 | 广西电网有限责任公司电力科学研究院 | A kind of high-voltage circuitbreaker second trial interface arrangement and its test method |
Non-Patent Citations (1)
| Title |
|---|
| Yi Su 等.Design of intelligent detection system for high voltage circuit breaker based on functional integration.《IOP Conference Series: Earth and Environmental Science》.2019,第295卷(第4期),第1-6页. * |
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