CN106199396A - Online residual current circuit breaker dynamic characteristic detection device and detection method thereof - Google Patents
Online residual current circuit breaker dynamic characteristic detection device and detection method thereof Download PDFInfo
- Publication number
- CN106199396A CN106199396A CN201510223209.9A CN201510223209A CN106199396A CN 106199396 A CN106199396 A CN 106199396A CN 201510223209 A CN201510223209 A CN 201510223209A CN 106199396 A CN106199396 A CN 106199396A
- Authority
- CN
- China
- Prior art keywords
- residual current
- circuit breaker
- current circuit
- detection
- input
- 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.)
- Pending
Links
- 238000001514 detection method Methods 0.000 title claims abstract description 91
- 238000012360 testing method Methods 0.000 claims abstract description 16
- 238000005070 sampling Methods 0.000 claims description 12
- 238000004891 communication Methods 0.000 claims description 8
- 230000001681 protective effect Effects 0.000 claims description 4
- 238000012937 correction Methods 0.000 claims description 2
- 230000003993 interaction Effects 0.000 claims description 2
- 238000011022 operating instruction Methods 0.000 claims description 2
- 230000002085 persistent effect Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 19
- 230000008569 process Effects 0.000 abstract description 8
- 150000001875 compounds Chemical class 0.000 abstract description 2
- 230000000737 periodic effect Effects 0.000 abstract description 2
- 238000012795 verification Methods 0.000 abstract description 2
- 230000009977 dual effect Effects 0.000 abstract 1
- 230000008859 change Effects 0.000 description 5
- 238000007726 management method Methods 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 238000011161 development Methods 0.000 description 4
- 230000001012 protector Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000004044 response Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 241000251468 Actinopterygii Species 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- KYIKRXIYLAGAKQ-UHFFFAOYSA-N abcn Chemical compound C1CCCCC1(C#N)N=NC1(C#N)CCCCC1 KYIKRXIYLAGAKQ-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000034994 death Effects 0.000 description 1
- 231100000517 death Toxicity 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010616 electrical installation Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Abstract
The present invention relates to a kind of online residual current circuit breaker dynamic characteristic detection device and detection method thereof, mainly include display device, input equipment, dual micro processor, even numbers mode voltage transducer, Wiring Protection Circuit.Device uses ARM and single-chip microcomputer double-core compound mode, it is achieved the intellectuality that detection signal produces, detection process, testing result process；Use even numbers mode voltage converter level linked method, simplify the method producing various different value sine wave signals；At device, output residual current signal is carried out feedback modulation, improve the accuracy of detection.Device can carry out the detection of residual current circuit breaker dynamic characteristic safely, in short-term, automatically and online, the bottleneck problem dismantlement work amount solving detection work is big, make electric industry department that residual current circuit breaker to carry out periodic verification work and become feasible, improve the safety of low-voltage distributing line.It addition, the use of device is also avoided that because detection work has a power failure the inconvenience brought to user.
Description
Technical field
The present invention relates to the detection field of low-voltage electrical apparatus, particularly relate to a kind of online residual current circuit breaker dynamic characteristic detection device and detection method thereof.
Background technology
Residual current circuit breaker; also known as residual current breaker protector; it is applied among low voltage electric network and electrical equipment, is to prevent insulation of electrical installation from damaging electric leakage and causing one of most basic and most important measures such as personal accident electric shock injures and deaths, equipment burnout and fire incident.The residual current circuit breaker of China is to start development from the mid-1970s; and first popularization and application in rural low voltage network; form a kind through the most perfect of the eighties to the nineties and development perfect, complete in specifications, meet the product line of the residual current circuit breaker (or protector) of IEC international standard.In the safeguard protection of low voltage electric network, especially the safeguard protection of rural low voltage network played an important role.For important public building, fire safety rules requires to arrange Electric Leakage Fire Alarm, but for the engineering not having professional electrician maintenance as house class building, safeguard, Aftercurrent protecting equipment is set and is just particularly important.Rising as far back as in June, 1999 and just have pointed out the main power lead-in circuit breaker of every house in the nation-building standard " Code for design of dwelling houses " of enforcement and should have creepage protection function in addition to air condition power socket, other supply socket circuit should arrange earth leakage protective device.Along with expanding economy, the power consumption of resident improves constantly, and each household electricity consumption of resident of developed area has brought up to more than 10kW, and therefore the requirement of the residual current circuit breaker (or protector) of rated current 50～more than 63A is also significantly rising.It addition, in the power supply unit in the places such as office, school, market, arenas, gymnasium, hotel, petrochemical industry, iron and steel enterprise, be designed with residual current circuit breaker (or protector) and protection device.According to incompletely statistics, China uses Aftercurrent protecting equipment (including chopper) to reach 1.5 hundred million.
In the last thirty years, along with the development of electronic technology, high sensitivity, quick-acting type residual current circuit breaker and protection device obtain development greatly.The states such as Germany, France, Britain, the U.S., Japan or even International Electrotechnical Commission all successively set up and have revised the product standard of Aftercurrent protecting equipment and association standard thereof and regulation.In China; country has successively worked out the standard of multi-section residual current open circuit (protection) device; such as " RCD (GB6829-1995) " standard; " aftercurrent action protecting equipment installation and operation (GB13955-2005) "; " the general of aftercurrent action protecting electrical equipment requires (GB/Z 6829-2008) ", " the aftercurrent action protecting electrical equipment (GB16917.1-2014) of the band overcurrent protection of domestic and similar applications ".Progress along with technology; the relevant criterion of residual current product has carried out repeatedly revising; but Aftercurrent protecting equipment is being used and the link such as management lacks accurately, normalized detection means, the visual assessment of general trial jump, is replacing the detection of residual current acting characteristic.
Trial jump method is as shown in Figure 1; the Calibrated current that residual current circuit breaker (25) is protected; the input input and output ABCN(triple line of chopper and zero line) the two ends of any same single line; if residual current sensor (27) detects the residual current reaching (or exceeding) protection value; electrical apparatus release (28) is driven through amplifier; residual current circuit breaker protection contact (26) disconnects automatically; judging that this chopper (25) residual current circuit breaker has defencive function, detection is passed through；If breaker protection contact (26) can not disconnect automatically, it is determined that this chopper (25) can not use.Although this method is simple to operate, but can not comprehensively identify the protective value of residual current circuit breaker: 1. can not examine and determine out residual current protecting value；2. it is alternating current due to detection limit, and the randomness of turn-on time, residual current circuit breaker cannot accurately determine movement time.Therefore, on protected distribution line, often there is the safe residual current value phenomenon higher than residual current circuit breaker setting value, chopper misoperation occurs；Also have tripping operation oversize for interval time, do not have and people and animals are got an electric shock and earth fault safeguard protection effect.
Further, since the residual current value on working line, change with environment, weather (season) and use load change to change, the residual current setting value of the chopper that shields on the line, also to adjust therewith；Electronic devices and components parameter in residual current circuit breaker again, also with using the factors such as variation of ambient temperature to change, therefore, the operating characteristic of chopper also can change.And periodically residual current circuit breaker acting characteristic is examined and determine, the main task of residual current circuit breaker reliability service management work will be become.Up to the present, if the dynamic characteristic of residual current circuit breaker to be detected, only residual current circuit breaker is disassembled from circuit, receive on the testboard of test chamber, carry out manual loading residual current value and the dynamic test of the time of operation thereof.Needing the longer time owing to dismantling, examining and determine, installing residual current circuit breaker, detection efficiency is low, not only to expend a large amount of manpower and materials, and power failure also can be caused to make troubles to user.Therefore, the work that the dynamic characteristic of residual current circuit breaker is periodically detected by power supply department, fail to launch always, thus bring very big hidden danger to Electrical Safety, periodically examine and determine in the urgent need to dynamic characteristic online to residual current circuit breaker.
Summary of the invention
For solving the problems referred to above; the present invention provides a kind of online residual current circuit breaker dynamic characteristic detection device; this detection device is by arranging the running parameter such as detection range and test point spacing; in the case of not having a power failure, the trend of work characteristic (residual current protecting value and movement time) of residual current circuit breaker is carried out on-line checking.
The online residual current circuit breaker dynamic characteristic detection device of the present invention, mainly includes display device, input equipment, arm processor, single-chip microcomputer, external number mode voltage transducer, filter circuit, Control of Voltage current circuit, relay group, outut device, sampling holding, Wiring Protection Circuit and residual current circuit breaker dynamic apparatus ground wire.This detection device is by arm processor and single-chip microcomputer double-core compound mode, it is achieved the generation of detection signal, detection process, the process intellectuality of testing result；Thus reach the purpose to the detection of online residual current circuit breaker dynamic characteristic.
Further, display device, it is connected with ARM, for man-machine information interaction；Input equipment, is connected with ARM, is used for inputting corresponding instruction；Arm processor, receives operating instruction, runs program, the output program operation result arranged；Single-chip microcomputer, is connected with ARM, and the operation waveform receiving arm processor output generates programmed instruction, and result value inputs external number mode voltage transducer；External number mode voltage transducer, is connected with single-chip microcomputer and ARM, according to the single-chip data received and ARM input reference voltage, produces sine voltage；Filter circuit, is connected with external number mode voltage transducer, the voltage waveform of smooth input；Control of Voltage current circuit, is connected with filter circuit output, and the electric current exported by the Control of Voltage of input；Relay group, controls connecting and disconnecting between Control of Voltage current circuit and thing to be detected, when wiring is normal, electric current is inputted detected material, as residual current detection sample；During wiring exception, cut off path between them；Outut device, is connected with arm processor, exports arm processor program operation result；Sampling keeps, and from the output electric current measure point being arranged between Control of Voltage current circuit and relay group, the data gathering residual current detection sample is imported arm processor, it is achieved feedback control；Wiring Protection Circuit, is arranged between relay group and checking matter, judges wiring correctness by the voltage of detection wiring, controls relay group state；Residual current circuit breaker dynamic apparatus ground wire, is connected with relay group one line.
Preferably, the online residual current circuit breaker dynamic characteristic detection device of the present invention also includes that GPRS wireless communication module is connected with described arm processor, transmits testing result.
Preferably, described arm processor includes ARMCPU, ARM internal bus, ARM internal timer, ARM internal Digital To Analog electric pressure converter；ARMCPU is connected with miscellaneous part by ARM internal bus, ARM internal bus is connected with described display device and input equipment respectively by multiple ARMTO input/output ports, being connected with described outut device by ARMSPT1 input/output port, ARM internal bus is also associated with ARM internal timer；ARM internal bus is connected with external number mode voltage transducer by ARM internal Digital To Analog electric pressure converter, is connected with single-chip microcomputer by ARMUSART1 input/output port, receives, by ARM internal mode number converter, the data that sampling keeps being collected, it is achieved feedback control.Described ARM internal bus one end is connected with described GPRS wireless communication module by ARMUSART2 input/output port.The present invention uses even numbers mode voltage converter level linked method, simplifies the method producing various different value sine wave signals；Output residual current signal is carried out feedback modulation simultaneously, improve the accuracy of detection.
Preferably, described display device is display screen；Described input equipment is keyboard；Described outut device is printer.
Another aspect of the present invention, it is provided that a kind of detection method utilizing described detection device to perform, detects automatically to online residual current circuit breaker dynamic characteristic.Described detection method comprises the following steps:
A) detection device energising, detection device resets, and runs readiness program, the detected information of residual current circuit breaker of prompting input, testing conditions parameter and the mode of output detections result；
B) prompting carries out detecting wiring；
C) detection pair of connecting wires is wrong, and wiring error points out wiring error information, returns step c)；Wiring is correct, carries out next step operation；
D) detection device connected by protective relay, according to the testing conditions parameter of input in operation a), calculates test point, runs detection program；
E) detection of exported residual current sample back, dynamic corrections output residual current sample are set at device, improve the accuracy of output sample.
F) when exporting residual current pattern detection value and being not reaching to residual current circuit breaker protection value, main protection contact turns on, persistently after the setting time, and input next one output residual current sample, repeat the above steps；When export residual current sample reach residual current protecting value set by detected residual current circuit breaker and exceed its be failure to actuate the time time; residual current circuit breaker major loop cuts off circuit; ARM detects break signal, and the input current and the corresponding response time that above-mentioned steps are detected are stored in memorizer；
F) when exporting residual current sample value and being not reaching to residual current circuit breaker protection value, main protection contact turns on, persistently after the setting time, and input next one output residual current sample, repeat the above steps；When output residual current sample reaches residual current protecting value set by residual current circuit breaker; and exceed its be failure to actuate the time time, residual current circuit breaker major loop cut off circuit, ARM detects break signal; and by the input current now detected and corresponding persistent period, it is stored in memorizer；
G) detection terminates, and is exported by setting means according to the numerical value that input information and the previous step of step a) detect.
The invention has the beneficial effects as follows:
(1) problem that bottleneck problem-dismantlement work amount is big during the present invention solves detection work, need not disassemble residual current circuit breaker, use online test method, alleviate the labor intensity of low-voltage distribution maintenance management personnel, improve work efficiency, make electric industry department that residual current circuit breaker to carry out periodic verification work and become feasible；(2) in the case of not having a power failure, short time on-line checking, it is to avoid the platform district caused because of detection work has a power failure, the inconvenience brought to user improves the level of electric industry department power supply quality；(3) detect residual current protecting value and tripping action time accurately, circuit hidden danger can be eliminated in time, reliably improve the safety of low-voltage circuit protection；(4) using method having due to this device is easy, operation safety and the feature such as detection process time is short, electric industry department increases to " trial jump " the low level management mode used by the safety-critical equipment (residual current circuit breaker) in low-voltage distributing line, is changed into the feasibility of " essence industry " way to manage that residual current circuit breaker is periodically detected work.
Accompanying drawing explanation
The present invention is further detailed explanation with detailed description of the invention below in conjunction with the accompanying drawings.
Fig. 1 is residual current circuit breaker trial jump method schematic diagram in prior art；
Fig. 2 is the online residual current circuit breaker dynamic characteristic structure of the detecting device figure of the present invention；
Fig. 3 is the detection processes result output illustrated example of the present invention；
Fig. 4 is ARM and the single-chip microcomputer workflow diagram of the present invention.
nullWherein，1、Display screen，2、Keyboard，3、Mini-printer，4、GPRS wireless communication module，5、ARMI0 0 ~ 7 input/output port，6、ARMI0 8 ~ 15 input/output port，7、ARMSPI1 input/output port，8、ARM internal timer，9、ARMUSART2 input/output port，10、ARMCPU，11、Arm processor，12、ARM internal Digital To Analog electric pressure converter，13、ARMUSART1 input/output port，14、ARM internal mode number converter，15、ARM internal bus，16、Single-chip microcomputer，17、Sampling keeps，18、Residual current circuit breaker dynamic apparatus ground wire，19、External number mode voltage transducer，20、Filter circuit，21、Control of Voltage current circuit，22、Output electric current measure point，23、Wiring Protection Circuit，24、Relay group，25、Residual current circuit breaker，26、Main protection contact，27、Residual current sensor，28、Electrical apparatus release.
Detailed description of the invention
Further illustrate with embodiment below in conjunction with the accompanying drawings.
The online residual current circuit breaker dynamic characteristic detection device of the present invention, keeps (17), Wiring Protection Circuit (23) and residual current circuit breaker dynamic apparatus ground wire (18) including display screen (1), keyboard (2), mini-printer (3), GPRS wireless communication module (4), arm processor (11), single-chip microcomputer (16), external number mode voltage transducer (19), filter circuit (20), Control of Voltage current circuit (21), relay group (24), sampling as shown in Figure 2.
Wherein, described arm processor (11) includes ARMI0 0 ~ 7 input/output port (5), ARMI0 8 ~ 15 input/output port (6), ARMSPI1 input/output port (7), ARM internal timer (8), ARMUSART2 input/output port (9), ARMCPU(10), ARM internal Digital To Analog electric pressure converter (12), ARMUSART1 input/output port (13), ARM internal mode number converter (14), ARM internal bus (15).By ARM internal bus (15) by (5), (6), (7), (8), (9), (12), (13), (14) and ARMCPU(10) it is connected；It addition, ARMTO 0 ~ 7 input/output port (5) is connected with display screen (1) data input pin, ARMTO 8 ~ 15 input/output port (6) is connected with keyboard (2) data port；ARMSPT1 input/output port (7) is connected with mini-printer (3) data input port；ARMUSART2 input/output port (9) is also connected with GPRS wireless communication module (4) data input/output port；ARM internal Digital To Analog electric pressure converter (12) analog output is connected with external number mode voltage transducer (19) reference voltage end；ARMUSART1 input/output port (13) is connected with single-chip microcomputer (16) input/output port；The input of ARM internal mode number converter (14) data receives sampling and keeps (17).Single-chip microcomputer (16) delivery outlet is connected with external number mode voltage transducer (19) data input pin；External number mode voltage transducer (19) analog output is connected with filter circuit (20)；Wave filter is connected with Control of Voltage current circuit (21) voltage input end；Control of Voltage current circuit (21) current output terminal is connected with relay group (24) input tip side；Being provided with output electric current measure point (22) between Control of Voltage current circuit (21) outfan and relay group contact (24), output electric current measure point (22) keeps (17) to be connected with sampling；Arm processor (11) keeps (17) to obtain the data that output electric current measure point (22) detects by sampling；Circuit between detected material and relay group (24) is connected with Wiring Protection Circuit (23) input；Wiring Protection Circuit (23) outfan is connected with a data bit mouth circuit of arm processor (11)；Relay group (24) control coil input is connected with Wiring Protection Circuit (23) outfan；Another input termination residual current circuit breaker dynamic apparatus ground wire (18) of relay group (24), the output of relay group (24) connects the input/output terminal of detected residual current circuit breaker (25) any one phase line respectively.
Described detection device passes through relay group (24) outfan, provides the sample of residual current signal to residual current circuit breaker (25), carries out dynamic characteristic detection.
Fig. 4 is arm processor and the single-chip microcomputer workflow diagram of the present invention.According to Fig. 2 and Fig. 4, operation principle and the detection method of the present invention be:
1, detection device energising, arm processor (11) resets with single-chip microcomputer (16).ARMCPU(10) running readiness program, by display screen (1) to the information of the user detected residual current circuit breaker (25) of prompting input, such as input table district, circuit, device numbering etc., user passes through keyboard (2), inputs；Input detection speed is selected again, as residual current circuit breaker protects range mA(H to user prompting), the increment mA(n of adjacent twice detected value).Detection H maximum: the integer of 100 to 999 is significant digits；Increment each time: 1 to 10 is significant digits.Pass through keyboard (2) to user prompting the need of remote transmission (Y/N), user, input again.As selected to need (Y), input transmission address；The need of printing (Y/N), user passes through keyboard (2), inputs.
2, after completing the procedure; can carry out detecting wiring (when start to user prompting by display screen (1); relay group (24) contact disconnects); the detection wiring used of device; the end employing that is connected with device patches method; connect and be in line states residual current circuit breaker end and use fish mouth folder, wiring electrical body and make to protect with insulator between employment.Two detection detected body mode of connections of device are, an end of incoming cables connecing detected body, a leading-out terminal connecing detected body, but must be same phase lines, and AA, BB, CC, NN are the most permissible.If wrong, as connected AB, Wiring Protection Circuit (23) test side, 380V or 220V voltage being detected, Wiring Protection Circuit (23) still disconnects relay group (24) contact, it is to avoid external voltage burns out detection device.Meanwhile, Wiring Protection Circuit (23) transmits information wrong signal, detection device display screen (1) prompting wiring error information to arm processor (11).
3, in the case of wiring is correct, ARM CPU(10) run detection program.ARMCPU(10) according to range and the increment of adjacent twice detected value of input residual current protecting, calculate.Range such as residual current circuit breaker protection is 1000mA, the increment 10mA of adjacent twice detected value, and detection is counted as 1000/10=100, respectively 10,20,30 ... 100 ..., 200 ... 1000mA；And for example residual current circuit breaker protection range 100mA, the increment 5mA of adjacent twice detected value, test point is k=100/5=20, respectively 5,10,15 ... 95,100.ARM CPU(10) numerical value of each test point is inputted successively to ARM internal Digital To Analog electric pressure converter (12), this numerical value 12 bit binary number, maximum is 212=4096.ARM internal Digital To Analog electric pressure converter (12) is by digital signal switch analog voltages, if arm processor (11) supply voltage is U, detection current setting is a, and output analog voltage is.This output voltage is transferred to the reference voltage end of external number mode voltage transducer (19), as the reference voltage of external number mode voltage transducer (19)；While setting the reference voltage of external number mode voltage transducer (19), ARM internal timer (8) timing, setting requirement according to residual current circuit breaker, within residual current reaches setting value 20ms, residual current circuit breaker (25) cuts off this index of circuit, and each test point applies residual current time 20ms.
4, while ARM internal timer (8) timing, arm processor (11) runs waveform by ARMUSART1 input/output port (13) to single-chip microcomputer (16) output and generates programmed instruction.Single-chip microcomputer (16) internal program with 64 sinusoidal wave numerical value, i.e. k*360 °/64, such as 5.625 °, 11.25 ° ... 348.75 °, 354.375 ° of equal angular sine value L, i.e. 0.0980,0.195 ...-0.195 ,-0.0980；The binary number of these numerical value is sequentially input external number mode voltage transducer (19), each value output time length 0.3125ms by single-chip microcomputer (16).External number mode voltage transducer (19), according to input value and its reference voltage, is carried out(a for detection current setting) multiplying, in 20ms, produce notch cuttype, the cycle be voltage sinusoidal wave for 50Hz.This voltage passes through filter circuit (20), obtains the voltage of similar sine wave simulation.This voltage is transfused to the control voltage end of Control of Voltage current circuit (21), Control of Voltage current circuit (21) voltage foundationRelational expression, the required size sine-wave current of output.This electric current is input to detected residual current circuit breaker (25) by relay group (24), as residual current detection sample current.When being not reaching to residual current circuit breaker (25) protection value, residual current circuit breaker main protection contact (26) is conducting.At output electric current measure point (22), can detect that input detection sample current is normal.After lasting 20ms, as former ARM internal Digital To Analog electric pressure converter (12) voltage is, then input(n be adjacent twice detection increment) voltage, single-chip microcomputer (16) rerun waveform generate program, be continuously increased like this, until residual current circuit breaker (25) tripping operation；At output electric current measure point (22), can detect that input detection sample current is without output.Output electric current now is exactly residual current circuit breaker (25) real protection electric current.Arm processor (11), by this value and respective reaction time, is stored in memorizer, as the output parameter of dynamic characteristic.
5, additionally, output electric current measure point (22) or the electric current of detection output, with sampling keep (17), ARM internal mode number converter (14), ARMCPU(10), ARM internal Digital To Analog electric pressure converter (12), external number mode voltage transducer (19), filter circuit (20), Control of Voltage current circuit (21) process closed loop control circuit, can accurately control.If setting output current setting I, its corresponding A RM output voltage is, when single-chip microcomputer (16) sine wave outputAngle value, sets output electric current and should be.The signal i ' that output electric current measure point (22) detects is transferred to sampling and keeps on (17), and signal is quantified by ARM internal mode number converter (14).ARMCPU(10) calculation procedure is run:If,, ARM internal Digital To Analog electric pressure converter (12) input value keeps constant, if,, ARM internal Digital To Analog electric pressure converter (12) input value is；If,, ARM internal Digital To Analog electric pressure converter (12) input value is, wherein H is the range of residual current circuit breaker protection, n is the increment of adjacent twice detected value.
6, detection terminates; according to initial setting up; can be by information such as platform district, circuit, residual current circuit breaker numbering, residual current circuit breaker real protection value, response time in real protection value; the lane database of management of power use department it is transferred to by GPRS wireless communication module (4); can also be printed for information being pasted onto on the adhesive sticker of detection equipment by mini-printer (3) in device.
Fig. 3 is the detection processes result output illustrated example of the present invention.With residual current circuit breaker protection range as 100mA, as a example by the interval 10mA of adjacent twice detected value, as it can be seen, residual current protecting actual value 80mA, the response time is 9ms.
The above, be only presently preferred embodiments of the present invention, and the present invention not does any pro forma restriction, and any simple modification that above example is made by every technical spirit according to the present invention, equivalent variations, within each falling within protection scope of the present invention.
Claims (9)
1. an online residual current circuit breaker dynamic characteristic detection device, including,
Display device, is connected with ARM, for man-machine information interaction；
Input equipment, is connected with ARM, is used for inputting corresponding instruction；
Arm processor, receives operating instruction, runs program, the output program operation result arranged；
Single-chip microcomputer, is connected with ARM, and the operation waveform receiving arm processor output generates programmed instruction, and result value inputs external number mode voltage transducer；
External number mode voltage transducer, is connected with single-chip microcomputer and arm processor, according to the single-chip data received and ARM input reference voltage, produces sine voltage；
Filter circuit, is connected with external number mode voltage transducer, the voltage waveform of smooth input；
Control of Voltage current circuit, is connected with filter circuit output, and the electric current exported by the Control of Voltage of input；
Relay group, controls connecting and disconnecting between Control of Voltage current circuit and thing to be detected；
Outut device, is connected with arm processor, exports arm processor program operation result；
Sampling keeps, and from the output electric current measure point being arranged between Control of Voltage current circuit and relay group, the data gathering residual current detection sample is imported arm processor, it is achieved feedback control；
Wiring Protection Circuit, is arranged between relay group and checking matter, the voltage of detection false wiring, controls the state of relay；
Residual current circuit breaker dynamic apparatus ground wire, is connected with relay group one line.
One the most according to claim 1 online residual current circuit breaker dynamic characteristic detection device, it is characterised in that: described relay group, when wiring is normal, by detected for electric current input residual current circuit breaker, as residual current detection sample；When wiring exception, cut off path between them.
One the most according to claim 1 online residual current circuit breaker dynamic characteristic detection device, it is characterised in that: also include that GPRS wireless communication module is connected with described arm processor.
One the most according to claim 3 online residual current circuit breaker dynamic characteristic detection device, it is characterised in that: described arm processor includes ARMCPU, ARM internal bus, ARM internal timer, ARM internal Digital To Analog electric pressure converter；Described ARMCPU is connected with miscellaneous part by ARM internal bus, ARM internal bus is connected with described display device and input equipment respectively by multiple ARMTO input/output ports, ARM internal bus is connected with described outut device by ARMSPT1 input/output port, and ARM internal bus is also associated with ARM internal timer；ARM internal bus is connected with external number mode voltage transducer by ARM internal Digital To Analog electric pressure converter, is connected with single-chip microcomputer by ARMUSART1 input/output port, receives, by ARM internal mode number converter, the data that sampling keeps being collected.
One the most according to claim 4 online residual current circuit breaker dynamic characteristic detection device, it is characterised in that: described ARM internal bus is connected with described GPRS wireless communication module by ARMUSART2 input/output port.
6. according to a kind of online residual current circuit breaker dynamic characteristic detection device described in claim 1-5 any one, it is characterised in that: described input equipment is keyboard.
One the most according to claim 6 online residual current circuit breaker dynamic characteristic detection device, it is characterised in that: described outut device is printer.
8. the detection method performed by the detection device described in aforementioned any one, it is characterised in that: online residual current circuit breaker dynamic characteristic is detected.
Detection method the most according to claim 8, it is characterised in that: described detection method comprises the following steps,
A) detection device energising, detection device resets, and runs readiness program, the detected information of residual current circuit breaker of prompting input, testing conditions parameter and the mode of output detections result；
B) prompting carries out detecting wiring；
C) detection pair of connecting wires is wrong, and wiring error points out wiring error information, returns step c)；Wiring is correct, carries out next step operation；
D) detection device connected by protective relay, according to the testing conditions parameter of input in operation a), calculates test point, runs detection program；
E) detection of exported residual current sample back, dynamic corrections output residual current sample are set at device, improve the accuracy of output sample；
F) when exporting residual current sample value and being not reaching to residual current circuit breaker protection value, main protection contact turns on, persistently after the setting time, and input next one output residual current sample, repeat the above steps；When output residual current sample reaches residual current protecting value set by residual current circuit breaker; and exceed its be failure to actuate the time time, residual current circuit breaker major loop cut off circuit, ARM detects break signal; and by the input current now detected and corresponding persistent period, it is stored in memorizer；
G) detection terminates, and according to the input information of step a), is exported by setting means by the numerical value that residual current circuit breaker information and previous step detect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510223209.9A CN106199396A (en) | 2015-05-05 | 2015-05-05 | Online residual current circuit breaker dynamic characteristic detection device and detection method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510223209.9A CN106199396A (en) | 2015-05-05 | 2015-05-05 | Online residual current circuit breaker dynamic characteristic detection device and detection method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106199396A true CN106199396A (en) | 2016-12-07 |
Family
ID=57457946
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510223209.9A Pending CN106199396A (en) | 2015-05-05 | 2015-05-05 | Online residual current circuit breaker dynamic characteristic detection device and detection method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106199396A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108627710A (en) * | 2017-03-15 | 2018-10-09 | 深圳市奇辉电气有限公司 | A kind of detection method and its system of electrical equipment acting characteristic |
| CN109270448A (en) * | 2018-10-11 | 2019-01-25 | 上海电器科学研究院 | A kind of breaker residual current acting characteristic test system |
| CN110780250A (en) * | 2019-09-30 | 2020-02-11 | 国创新能源汽车能源与信息创新中心(江苏)有限公司 | Automatic calibration system and method for residual current detection |
| CN112578278A (en) * | 2020-12-16 | 2021-03-30 | 河南省计量科学研究院 | Residual current protector action characteristic tester calibration device and system algorithm |
| CN112731007A (en) * | 2020-12-11 | 2021-04-30 | 深圳供电局有限公司 | Residual current protection device test system |
| CN113253178A (en) * | 2021-04-14 | 2021-08-13 | 威胜电气有限公司 | Online calibration method for residual current of circuit breaker |
| CN113253179A (en) * | 2021-04-14 | 2021-08-13 | 威胜电气有限公司 | High-precision online calibration method for residual current of circuit breaker |
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2757146Y (en) * | 2004-06-11 | 2006-02-08 | 王卫东 | Portable remained current protector detector |
| CN201311479Y (en) * | 2008-12-15 | 2009-09-16 | 陈征智 | Intelligent low-voltage line surplus current protective device field tester |
| CN201355388Y (en) * | 2009-02-26 | 2009-12-02 | 淮安信息职业技术学院 | Residual current protecting device performance characteristic tester |
| CN201444181U (en) * | 2009-06-15 | 2010-04-28 | 山东鲁西化工股份有限公司东阿第八化肥厂 | Leakage protector test instrument |
| CN201477186U (en) * | 2009-07-07 | 2010-05-19 | 厦门士林电机有限公司 | Tester for residual current circuit breaker |
| CN201654187U (en) * | 2010-02-05 | 2010-11-24 | 鲁西化工集团股份有限公司氯碱化工分公司 | Leakage protection tester |
| CN201689166U (en) * | 2009-11-14 | 2010-12-29 | 甘肃电力科学研究院 | Device for calibrating MOA leakage current online testing instrument |
| CN102944858A (en) * | 2012-11-12 | 2013-02-27 | 无锡市计量测试中心 | Residual current device action characteristic detector calibration instrument separating switch |
| CN203310967U (en) * | 2013-04-25 | 2013-11-27 | 上海电器科学研究所（集团）有限公司 | Intelligent communication leakage switch detection device |
| CN103680274A (en) * | 2013-12-26 | 2014-03-26 | 江苏大学 | Automatic detection method and device for connection wire of electrical experimental facility |
| CN104237831A (en) * | 2014-10-13 | 2014-12-24 | 国家电网公司 | Set for calibrating tester of arrester counter |
| CN104391243A (en) * | 2014-11-18 | 2015-03-04 | 国家电网公司 | Automatic testing device for three-phase aftercurrent action protector |
| CN104459526A (en) * | 2014-11-27 | 2015-03-25 | 苏州上电科电气设备有限公司 | B-type residual current protecting circuit breaker testing device |
| CN204256081U (en) * | 2014-12-18 | 2015-04-08 | 北京赛德高科铁道电气科技有限责任公司 | A kind of property test platform of IGBT unsteady flow module product |
-
2015
- 2015-05-05 CN CN201510223209.9A patent/CN106199396A/en active Pending
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2757146Y (en) * | 2004-06-11 | 2006-02-08 | 王卫东 | Portable remained current protector detector |
| CN201311479Y (en) * | 2008-12-15 | 2009-09-16 | 陈征智 | Intelligent low-voltage line surplus current protective device field tester |
| CN201355388Y (en) * | 2009-02-26 | 2009-12-02 | 淮安信息职业技术学院 | Residual current protecting device performance characteristic tester |
| CN201444181U (en) * | 2009-06-15 | 2010-04-28 | 山东鲁西化工股份有限公司东阿第八化肥厂 | Leakage protector test instrument |
| CN201477186U (en) * | 2009-07-07 | 2010-05-19 | 厦门士林电机有限公司 | Tester for residual current circuit breaker |
| CN201689166U (en) * | 2009-11-14 | 2010-12-29 | 甘肃电力科学研究院 | Device for calibrating MOA leakage current online testing instrument |
| CN201654187U (en) * | 2010-02-05 | 2010-11-24 | 鲁西化工集团股份有限公司氯碱化工分公司 | Leakage protection tester |
| CN102944858A (en) * | 2012-11-12 | 2013-02-27 | 无锡市计量测试中心 | Residual current device action characteristic detector calibration instrument separating switch |
| CN203310967U (en) * | 2013-04-25 | 2013-11-27 | 上海电器科学研究所（集团）有限公司 | Intelligent communication leakage switch detection device |
| CN103680274A (en) * | 2013-12-26 | 2014-03-26 | 江苏大学 | Automatic detection method and device for connection wire of electrical experimental facility |
| CN104237831A (en) * | 2014-10-13 | 2014-12-24 | 国家电网公司 | Set for calibrating tester of arrester counter |
| CN104391243A (en) * | 2014-11-18 | 2015-03-04 | 国家电网公司 | Automatic testing device for three-phase aftercurrent action protector |
| CN104459526A (en) * | 2014-11-27 | 2015-03-25 | 苏州上电科电气设备有限公司 | B-type residual current protecting circuit breaker testing device |
| CN204256081U (en) * | 2014-12-18 | 2015-04-08 | 北京赛德高科铁道电气科技有限责任公司 | A kind of property test platform of IGBT unsteady flow module product |
Non-Patent Citations (3)
| Title |
|---|
| 孙坚等: "RDC剩余电流保护装置测试仪概述及校准", 《工业计量》 * |
| 孙坚等: "RDC剩余电流保护装置测试仪概述及校准", 《工业计量》, 15 September 2010 (2010-09-15), pages 118 * |
| 李豹 等: "高精度金属氧化物避雷器测试仪标准装置的研制", 高压电器, vol. 45, no. 1 * |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108627710A (en) * | 2017-03-15 | 2018-10-09 | 深圳市奇辉电气有限公司 | A kind of detection method and its system of electrical equipment acting characteristic |
| CN109270448A (en) * | 2018-10-11 | 2019-01-25 | 上海电器科学研究院 | A kind of breaker residual current acting characteristic test system |
| CN110780250A (en) * | 2019-09-30 | 2020-02-11 | 国创新能源汽车能源与信息创新中心(江苏)有限公司 | Automatic calibration system and method for residual current detection |
| CN110780250B (en) * | 2019-09-30 | 2021-11-09 | 国创移动能源创新中心(江苏)有限公司 | Automatic calibration system and method for residual current detection |
| CN112731007A (en) * | 2020-12-11 | 2021-04-30 | 深圳供电局有限公司 | Residual current protection device test system |
| CN112731007B (en) * | 2020-12-11 | 2023-09-15 | 深圳供电局有限公司 | Residual current protection device test system |
| CN112578278A (en) * | 2020-12-16 | 2021-03-30 | 河南省计量科学研究院 | Residual current protector action characteristic tester calibration device and system algorithm |
| CN113253178A (en) * | 2021-04-14 | 2021-08-13 | 威胜电气有限公司 | Online calibration method for residual current of circuit breaker |
| CN113253179A (en) * | 2021-04-14 | 2021-08-13 | 威胜电气有限公司 | High-precision online calibration method for residual current of circuit breaker |
| CN113253179B (en) * | 2021-04-14 | 2022-03-01 | 威胜电气有限公司 | High-precision online calibration method for residual current of circuit breaker |
| CN113253178B (en) * | 2021-04-14 | 2022-03-01 | 威胜电气有限公司 | Online calibration method for residual current of circuit breaker |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106199396A (en) | Online residual current circuit breaker dynamic characteristic detection device and detection method thereof | |
| CN103353556B (en) | Protective relaying device pressing plate outlet logic detection device | |
| CN102072996B (en) | System for realizing automatic digital protection and closed loop moving die test | |
| CN102306953B (en) | Test method for secondary injection of power distribution automatization system | |
| CN106707094B (en) | The classifying identification method of low pressure power and distribution supply cable arc fault | |
| CN106094571B (en) | Multifunctional anti-electricity-theft simulation experiment platform | |
| CN111521919A (en) | Low-voltage transformer area zero line live fault diagnosis device and diagnosis and positioning method | |
| CN104269090B (en) | The analogue system of a kind of power information acquisition terminal wheel secondary control switch and method thereof | |
| CN203894379U (en) | Comprehensive test stand for detecting performances of mine low-voltage feeder switch | |
| CN106093636A (en) | The analog quantity check method of the secondary device of intelligent grid and device | |
| CN202453445U (en) | Testing device for stage difference coordination of transformer substation direct-current system | |
| CN204154848U (en) | A kind of Secondary Circuit of Potential Transformer multipoint earth faults on-Line Monitor Device | |
| CN204089727U (en) | High aititude photovoltaic plant electric network fault simulated testing system mobile detection apparatus | |
| CN102565614B (en) | Alternating voltage loop test method | |
| CN113156240B (en) | Substation electrical equipment debugging method | |
| CN115575778A (en) | Calibration system and calibration method of direct-current insulation monitoring device | |
| CN204495930U (en) | A kind of intelligent type automatic electrical test system | |
| CN105186457B (en) | Motor Protective Device | |
| CN205374621U (en) | Automatic change digit relay protection of transformer substation tester | |
| CN108303668A (en) | The digitized measurement simulator based on three-phase high-voltage electric energy | |
| CN204462283U (en) | A kind of DC feeder Graded coordination proving installation | |
| CN210090657U (en) | Active detector of electric energy metering device | |
| CN202600126U (en) | Arrester online monitor verifying unit | |
| CN209087095U (en) | A kind of Electrical Safety detector | |
| CN209859429U (en) | Electric leakage investigation simulation teaching device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination |