CN103760489B - Intelligent detection device for high-voltage circuit breaker - Google Patents

Intelligent detection device for high-voltage circuit breaker Download PDF

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Publication number
CN103760489B
CN103760489B CN201410028907.9A CN201410028907A CN103760489B CN 103760489 B CN103760489 B CN 103760489B CN 201410028907 A CN201410028907 A CN 201410028907A CN 103760489 B CN103760489 B CN 103760489B
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China
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module
breaker
aviation plug
resistance
power source
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CN201410028907.9A
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CN103760489A (en
Inventor
周刚
钱军
徐伟
朱辉
钱伟杰
潘克菲
金海�
胡海平
罗志远
汤金兴
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State Grid Corp of China SGCC
Jiaxing Power Supply Co of State Grid Zhejiang Electric Power Co Ltd
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State Grid Corp of China SGCC
Jiaxing Power Supply Co of State Grid Zhejiang Electric Power Co Ltd
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Abstract

An intelligent detection device for a high-voltage circuit breaker comprises a CUP module which is connected with a dedicated aviation plug through a sampling and converting module. The dedicated aviation plug and a breaker secondary plug-in unit are connected together, one end of the dedicated aviation plug comprises two paths of loops which are connected with a power output module through a resistance measurement module and a power converting module respectively and a loop directly connected with the power output module, breaker secondary loop resistance is measured by the resistance measurement module, alternating-current 220V voltages of the power output module are converted into a 220V direct-current power source and a 110V direct-current power source by the power converting module, and the 220V direct-current power source and the 110V direct-current power source are output as an opening direct-current power source and a closing direct-current power source of the circuit breaker. The CPU module controls the opening power source and the closing power source, output by the power output module through the power converting module, of the circuit breaker through the dedicated aviation plug and controls the detection of currents of an energy storage motor through the sampling and converting module to test energy storage time of the motor, and meanwhile the breaker secondary loop resistance obtained by the resistance measurement module through tests is calculated through the dedicated aviation plug. The intelligent detection device for the high-voltage circuit breaker has the advantages of being simple in structure, easy to carry, convenient to operate, strong in university and the like.

Description

A kind of intelligent detection device for high-voltage circuit breaker
Technical field
The present invention relates to a kind of intelligent detection device of primary cut-out, belong to power equipment Work tool field.
Background technology
With the high speed development of power network, how under new experimental enviroment, test method, test method, it is ensured that maintenance examination Test the security and high efficiency of work, the problem as current urgent need to resolve.At present, installation, debugging, the throwing of primary cut-out The tasks such as product, prerun, overhaul, defect elimination are occupied greatly in daily plant maintenance, service work content, and In any of the above-described work, it is required for the auxiliary contact to breaker, loop to be detected one by one;But, existing traditional people Work one by one detection mode there are the following problems:
1)Primary cut-out is required for auxiliary contact, electrically returning in installation, debugging, operation, prerun, overhaul, defect elimination The electric components such as road, spacing, switching winding, closing coil, electric blocking coil, breaker energy storage motor are detected one by one, Check.Traditional detection mode is, it is necessary to maintainer holds breaker key wiring diagram at present, with to works such as line lamp or universal meters Tool is detected one by one to primary cut-out, time-consuming;
2)With the raising of electric reliability requirement, it is desirable to as far as possible during the work of shortening faulty equipment defect elimination and checking experiment Between, to recover power transmission as early as possible, therefore received frequently with the overall quick inspection of electric substation, concentrate the modes such as maintenance.Due to manual detection mistake The mistake that the careless and inadvertent and fatigue that manually works long hours in journey is produced, can cause detection accuracy to reduce;Additionally, due to people Work operates fragile primary cut-out secondary inserting piece contact pin, damage is caused to equipment and triggers related accidents.
3)Different manufacturers, the primary cut-out defined of different model parameter it is different.Each time to primary cut-out Experimental test works and elimination of equipment defect, is required for the various of electrical schematic diagram with reference to each producer, wiring diagram and producer regulation Parameter is tested and checked one by one, inefficiency.
In sum, not only workload is very big for current primary cut-out detection mode, expend a large amount of manpowers, energy and when Between, and exist unavoidably in operation process detection not comprehensively, omit detection, situations such as testing result is inaccurate, it is poor easily to occur In mistake, and test process may to breaker secondary inserting piece contact pin cause damage, directly influence power network stable operation and The reliability of power supply.
The content of the invention
It is an object of the invention to overcome above-mentioned deficiency, and a kind of simple structure is provided, portable, operation side Just, highly versatile, can quickly, accurately carry out breaker auxiliary contact and loop detection, improve the high pressure of power supply reliability Breaker intelligent detection device.
The present invention is achieved by the following technical solution:The intelligent detection device of the primary cut-out, it includes One CPU module that general aviation plug is connected with by sampling transformation module, described general aviation plug is secondary with breaker Plug-in unit links together, and its one end includes that two-way exports mould by a resistance measuring module, power conversion module and power supply respectively The loop of block connection and the loop being directly connected with power supply output module all the way, and it is secondary by resistance measuring module test breaker Loop resistance, by power conversion module by the alternating current 220V voltage transformation of power supply output module into two kinds of direct currents of 220V and 110V Source export as breaker point, combined floodgate dc source.
Described CPU module uses U2STM32F103RBT6 type ARM chips, and it is by the general aviation plug to electricity Source output module is exported to the power supply for dividing, closing a floodgate of breaker by power conversion module and is controlled and by sampling transformation Module carries out detection control to energy storage motor electric current, while resistance measuring module is tested by the general aviation plug Secondary loop of breaker resistance is calculated;Described CPU module is connected with alarm module, printer module and liquid crystal keyboard Module.
Described resistance measuring module is a constant voltage and current limiting type resistance measurement mould for test secondary loop of breaker resistance Block;Described power of alterating and direct current conversion module is a full-bridge circuit converted by AC-DC-AC-DC;Described printer Module is a SEM480 temperature-sensitive rapid printers;Described alarm module is a buzzing generator and a light emitting diode;It is described Liquid crystal Keysheet module be a SDW6448-057-NN01W type colorized lcd display models.
Be mounted with the system bus of the CPU module one be made up of USB interface, with 8 bit data bus and read-write Piece selects the device interface module of control line and interrupt output.
The sampling transformation module includes the OP777ARZ computings that the voltage that will can be collected, current signal are amplified Amplifier, one can be simulated-AD7920BRM the chips of data signal conversion, and a pair of signals are isolated ADuM2402BRWZ isolating chips.
The present invention is connected by general aviation plug with tested primary cut-out secondary inserting piece, mimic-disconnecting switch reality Running status, sets relevant parameter, carries out output control by liquid crystal Keysheet module, controls 220V to exchange by CPU module defeated Go out, 220/110V direct current outputs come realize to primary cut-out switch divide-shut brake, energy storage motor control;
The present invention can carry out automatic, quick test, and energy to parameters such as primary cut-out secondary circuit resistance, auxiliary contact The energy storage time of energy storage motor is calculated, all of testing result can on a liquid crystal display be shown and can be beaten by printer Print, when testing result is not inconsistent with the parameter value of setting, carries out buzzing and light warning;
The present invention can be also connected by USB interface with outer computer, test result be exported, and device can be carried out On-line debugging, realizes system update with upgrading.
The features such as it has simple structure, portable, easy to operate, highly versatile, preferably suitable for primary cut-out Detection testing ground, improves the accuracy of detection test data, it is ensured that the security of tested device, improves high pressure open circuit Device detects test efficiency.
Brief description of the drawings
Fig. 1 is overall structure composition frame chart of the present invention.
Specific embodiment
Below in conjunction with accompanying drawing, the present invention will be described in detail:Shown in Fig. 1, the present invention includes that one passes through sampling transformation mould Block 3 is connected with the CPU module 1 of general aviation plug 10, and described general aviation plug 10 is connected to breaker secondary inserting piece Together, its one end includes that two-way is connected with power supply output module 9 respectively by a resistance measuring module 2 and power conversion module 4 Loop and the loop that is directly directly connected to power supply output module 9 all the way, and by resistance measuring module 2, sampling transformation module 3 Test secondary loop of breaker resistance, by power conversion module 4 by the alternating current 220V voltage transformation of power supply output module 9 into 220V With the output of two kinds of dc sources of 110V as breaker point, combined floodgate dc source.
CPU module of the present invention 1 uses U2STM32F103RBT6 type ARM chips, and it is inserted by the general aviation First 10 pairs of power supply output modules 9 are exported to the power supply for dividing, closing a floodgate of breaker by power conversion module 4 and are controlled and lead to Over-sampling conversion module 3 carries out detection control to energy storage motor electric current, while being surveyed to resistance by the general aviation plug 10 Amount module 2, the secondary loop of breaker resistance that sampling transformation module 3 is tested is calculated;Described CPU module 1 is also connected with There are alarm module 8, printer module 5 and liquid crystal Keysheet module 7.
Resistance measuring module of the present invention 2 is a constant voltage and current limiting type resistance for test secondary loop of breaker resistance Measurement module;Described power conversion module 4 is a full-bridge circuit converted by AC-DC-AC-DC;Described printing Machine module 5 is a SEM480 temperature-sensitive rapid printers;Described alarm module 8 is a buzzing generator and a light emitting diode; Described liquid crystal Keysheet module 6 is a SDW6448-057-NN01W type colorized lcd display models.
Be mounted with the system bus of the CPU module 1 one be made up of USB interface, with 8 bit data bus and read-write Piece selects the device interface module 7 of control line and interrupt output.
The sampling transformation module 3 includes the OP777ARZ fortune that the voltage that will can be collected, current signal are amplified Amplifier is calculated ,-AD7920BRM the chips of data signal conversion one can be simulated, and a pair of signals are isolated ADuM2402BRWZ isolating chips.
Embodiment:Shown in Fig. 1, the invention mainly comprises:CPU module 1, resistance measuring module 2, sampling transformation module 3, electricity Source conversion module 4, printer module 5, liquid crystal Keysheet module 6, device interface module 7, alarm module 8,220V AC powers are defeated Go out module 9, general aviation plug 10.
CPU module 1 is the control centre of whole device, and using U2STM32F103RBT6 type ARM chips, it controls to hand over straight The detection to the divide-shut brake and energy storage motor energy storage electric current of breaker, and measuring and calculation secondary returning simultaneously are realized in the output of stream power supply Road resistance.Meanwhile, alarm module is controlled by CPU, when secondary resistance has abnormal in controlling test loop, drive buzzer and police Lamp, reminds testing crew to note.In addition, CPU drives Liquid Crystal Module, respond input through keyboard and show setting project and test knot Really, specific test parameter is put in EEPROM.
Resistance measuring module 2 designs a constant voltage and current limiting type resistance measuring module, using OP07CP operational amplifiers, test Secondary loop of breaker resistance.When resistance is very big, constant pressure is kept, by measuring sample rate current, calculate breaker closing state Secondary circuit resistance;During resistance very little, by a current-limiting resistance so that electric current is maintained at a steady state value 0.5A, passes through Measurement sampled voltage, calculates the secondary circuit resistance of breaker open operation state.
Voltage that sampling transformation module 3 will be collected using OP777ARZ operational amplifiers, current signal are amplified simultaneously Changed by AD7920BRM simulation-data signals, most carry out signal isolation through ADuM2402BRWZ isolating chips afterwards.
Power of alterating and direct current conversion module 4 is a kind of full-bridge circuit, is converted by AC-DC-AC-DC, power supply transmission of electricity electricity Source ripple is small, and voltage stabilization, power is larger.The module is by alternating current 220V voltage by converting, and output 220V and two kinds of 110V is straight Stream power supply, meet different model primary cut-out point, the requirement of combined floodgate dc source.
Printer module 5 is SEM480 temperature-sensitive rapid printers.It is connected with CPU by 26 contact pins, data interaction passes through 8 Position datawire is connected, and transmission speed is fast, and printing drive circuit is carried by printer, and installation can be used.
Liquid crystal Keysheet module 6 is SDW6448-057-NN01W type colorized lcd display models.Its drive circuit by module from Band, without being designed again;Enabled by CPU, read-write completes it and controls circuit and designed with cpu interface circuit, realizes parameter Setting, output control, the display of testing result.
Device interface module 7 is USB interface, using CH375 chips, with 8 bit data bus and reading and writing, piece selected control system Line and interrupt output, are articulated on the system bus of CPU, realize data transfer, debugging function.
Alarm module 8 is buzzer and LED flash prompt alarm.When having abnormal, CPU output control signals, And large driven current density buzzer and warning lamp realization alarm are put by ULN2003AD modules.
220V AC powers output module 9 is contact pin type 220V AC power delivery outlets.Contact pin type 220V AC powers It is defeated to be connected with breaker secondary inserting piece by aviation socket, for breaker energy storage motor provides power supply.
Device is connected to breaker secondary inserting piece by general aviation plug, the actual motion state of mimic-disconnecting switch, and Have 220V exchange with 220V, 110V direct current output, realize in process of the test to breaker point, closing operation and energy storage motor Control.Device can be carried out in automatic, quick test, and energy use device to secondary circuit, auxiliary contact and electric components The power of alterating and direct current of output calculates the energy storage time of energy storage motor by CPU, and all of testing result can be in liquid crystal display Upper display, when testing result and the parameter of setting have not to be inconsistent, carries out buzzing and light warning.Can also be by usb interface module Test parameter is exported and device is debugged.
The present invention has following several features:
1)The actual motion state of mimic-disconnecting switch aviation plug;The present invention is secondary with test item by general aviation plug Plug-in unit is coupled together, complete mimic-disconnecting switch actual motion state, on the basis of detection data accuracy is improved, it is to avoid adopt The situation of test leakage, damage contact pin etc. occurs during with the equipment manual detection such as universal meter;
2)Substantially increase operating efficiency;The present invention is by the program and liquid crystal Keysheet module of CPU settings to secondary returning Road, auxiliary contact and electric components carry out automatic, quick test, and by test result and the parameter comparison for setting, compared to biography System manual detection, operating efficiency is largely increased;
3)System is scalable, renewal;The present invention can be by changing the setting of the aviation plug and internal processes of different model To meet the detection needs of different manufacturers, different model equipment;For the novel breaker newly increased in system, can also pass through The parameter of novel high-voltage circuit-breaker is set, to realize the detection to new breaker, with scalability.

Claims (4)

1. a kind of intelligent detection device of primary cut-out, it is connected with general aviation plug including one by sampling transformation module CPU modules, it is characterised in that described general aviation plug links together with breaker secondary inserting piece, and its one end has two Road is connected by a resistance measuring module and power conversion module with power supply output module respectively, the general aviation plug it is same One end also has and is directly connected with power supply output module all the way, and tests secondary loop of breaker resistance by resistance measuring module, by Power conversion module makees the alternating current 220V voltage transformation of power supply output module into two kinds of dc source outputs of 220V and 110V For breaker point, combined floodgate dc source;
Described CPU modules use U2STM32F103RBT6 type ARM chips, and it is by the general aviation plug to power supply Output module is exported to the power supply for dividing, closing a floodgate of breaker by power conversion module and is controlled and by sampling transformation mould Block carries out detection control to energy storage motor electric current, while by breaking that the general aviation plug is tested resistance measuring module Road device secondary circuit resistance is calculated;Described CPU modules are connected with alarm module, printer module and liquid crystal keyboard Module.
2. the intelligent detection device of primary cut-out according to claim 1, it is characterised in that described resistance measurement mould Block is a constant voltage and current limiting type resistance measuring module for test secondary loop of breaker resistance;Described power conversion module is one The full-bridge circuit converted by AC-DC-AC-DC;Described printer module is a SEM480 temperature-sensitive rapid printers; Described liquid crystal Keysheet module is a SDW6448-057-NN01W type colorized lcd display models;Described alarm module is one Buzzing generator and a light emitting diode.
3. the intelligent detection device of primary cut-out according to claim 1, it is characterised in that the CPU modules are System bus on be mounted with one be made up of USB interfaces, with 8 bit data bus and read-write piece select control line and interrupt output Device interface module.
4. the intelligent detection device of primary cut-out according to claim 1, it is characterised in that the sampling transformation module Including the OP777ARZ operational amplifiers that the voltage that will can collect, current signal are amplified, one can be simulated numeral The AD7920BRM chips of signal conversion, and the ADuM2402BRWZ isolating chips that a pair of signals are isolated.
CN201410028907.9A 2014-01-22 2014-01-22 Intelligent detection device for high-voltage circuit breaker Active CN103760489B (en)

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CN104122468A (en) * 2014-07-23 2014-10-29 国家电网公司 Intelligent power transformation device state parameter analysis meter
CN105242200A (en) * 2015-09-28 2016-01-13 国家电网公司 Detector of KYN28-12 type series vacuum short-circuiter
CN105655754A (en) * 2016-03-21 2016-06-08 国家电网公司 Multifunctional electric signal collecting line
CN107884711A (en) * 2017-12-18 2018-04-06 国家电网公司 Breaker method of testing and terminal
CN109471022B (en) * 2018-01-05 2020-07-14 国家电网公司 Power equipment test detection system and test detection method thereof
CN109471021B (en) * 2018-01-05 2020-06-05 国家电网公司 Device and method for detecting opening and closing performance of high-voltage circuit breaker
CN109459685A (en) * 2018-07-25 2019-03-12 国家电网有限公司 A kind of general detection attachment device of high-voltage circuitbreaker and detection method
CN110208688A (en) * 2019-05-09 2019-09-06 石家庄科林电气股份有限公司 A kind of failure pre-judging method of breaker energy storage motor

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