CN103091628A - Method for measuring delayed action time after power-on of miniature circuit breaker - Google Patents
Method for measuring delayed action time after power-on of miniature circuit breaker Download PDFInfo
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- CN103091628A CN103091628A CN2013100123793A CN201310012379A CN103091628A CN 103091628 A CN103091628 A CN 103091628A CN 2013100123793 A CN2013100123793 A CN 2013100123793A CN 201310012379 A CN201310012379 A CN 201310012379A CN 103091628 A CN103091628 A CN 103091628A
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- circuit breaker
- miniature circuit
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- shunted exciter
- sinusoidal waveform
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Abstract
The invention relates to a method for measuring delayed action time after power-on of a miniature circuit breaker. The method includes a first step of closing a hand-pull brake of the shunt trip type miniature circuit breaker, input terminals X1 and Y1 of the miniature circuit breaker are connected with a 220-volt alternating current power supply through a switch K, and output terminals X2 and Y2 of the miniature circuit breaker are respectively connected with an A1 terminal and an A2 terminal of an oscillograph, and a shunt trip signal terminal X3 of the miniature circuit breaker is suspended, a second step of closing the switch K, a section of sinusoidal waveform is displayed on the oscillograph, the sinusoidal waveform uses closing of the switch K as a starting point, and uses tripping operation of the miniature circuit breaker as a finishing point, and a third step of adjusting the sinusoidal waveform, enabling the sinusoidal waveform to be compressed to be in a square wave form in an envelope mode, and reading time of duration of high-voltage signals of the square wave at the moment, that is, the delayed action time after power-on of the miniature circuit breaker. The method for measuring the delayed action time after power-on of the miniature circuit breaker has the advantages of providing strong technical parameter support for quality detection and quality management and control of an intelligent electric energy meter of the miniature circuit breaker, and preventing economic loss of power enterprises.
Description
Technical field
The present invention relates to a kind of power on method of rear delay voltage time of miniature circuit breaker of measuring.
Background technology
The external local charge control electric energy meter 3 of relay is realized pre paid functionality, and needs and miniature circuit breaker are used in conjunction with.Domestic miniature circuit breaker adopts shunted exciter tripping type mostly, and when having a power failure, shunted exciter tripping type miniature circuit breaker 1 still can keep "on" position, and the delay trip time after it powers on is often about 1 second.After powering on, local charge control electric energy meter 3 judges whether there is expense by internal processes, if still have expense export the shunted exciter tripping signal be the 220V AC signal to the shunted exciter tripping signal terminal X3 of shunted exciter tripping type miniature circuit breaker 1, this moment, the shunted exciter tripping type miniature circuit breaker 1 kept "on" position constant; If not having expense to export the shunted exciter tripping signal is that the 0V signal is to the shunted exciter tripping signal terminal X3 of shunted exciter tripping type miniature circuit breaker 1, shunted exciter tripping type miniature circuit breaker 1 tripping operation this moment, the annexation of shunted exciter tripping type miniature circuit breaker 1 in home circuit is referring to Fig. 2.Therefore, after powering on, if the delay trip time of shunted exciter tripping type miniature circuit breaker 1 is less than the time of local charge control electric energy meter 3 output shunted exciter tripping signal after the internal processes judgement, shunted exciter tripping type miniature circuit breaker 1 can trip before receiving the shunted exciter tripping signal, this causes the power failure rear circuit breaker trip of sending a telegram here again will for the user that expense is still arranged, and causes the user again to have a power failure.Not only bring inconvenience to user life, and the economic loss that can bring to electric power enterprise.Therefore, the quality testing of shunted exciter tripping type miniature circuit breaker needed its this technical parameter of rear delay voltage time that powers on.
Summary of the invention
Technical problem underlying to be solved by this invention is to provide a kind of simple and convenient, method that measurement miniature circuit breaker safety and precise powers on the rear delay voltage time.
The present invention solves the scheme that its technical matters adopts:
Step of the present invention is as follows:
(1) closed shunted exciter tripping type miniature circuit breaker hands-off, input terminal X1, the Y1 of described shunted exciter tripping type miniature circuit breaker connect the 220V AC power by K switch; The lead-out terminal X2 of described shunted exciter tripping type miniature circuit breaker and Y2 connect respectively oscillographic A1 end and A2 end, the unsettled placement of shunted exciter tripping signal terminal X3 of described shunted exciter tripping type miniature circuit breaker;
(2) closed described K switch shows one section sinusoidal waveform on described oscillograph, described sinusoidal waveform is take described K switch closure as initial point, take described shunted exciter tripping type miniature circuit breaker tripping operation as terminal point;
(3) by adjusting the sinusoidal waveform on described oscillograph, make it be compressed into the form that envelope is square wave, read the width value of described square wave this moment, i.e. the duration of high voltage signal, the described duration is that the shunted exciter tripping type miniature circuit breaker powers on the rear delay-action time;
The present invention's oscillograph model used is FLUKE199C.
The beneficial effect that the present invention produces is as follows: the shunted exciter tripping type miniature circuit breaker of measuring rear delay voltage time that powers on has higher accuracy and reliability.For the quality management and control of the quality testing of miniature circuit breaker and intelligent electric energy meter provides strong technical parameter to support, avoid the economic loss of bringing to electric power enterprise.
Description of drawings
Fig. 1 is device therefor annexation schematic diagram of the present invention.
Fig. 2 is the annexation schematic diagram of shunted exciter tripping type miniature circuit breaker device in home circuit.
Fig. 3 is the oscillogram that oscillograph of the present invention is observed.
Wherein, 1 shunted exciter tripping type miniature circuit breaker, 2 oscillographs, 3 local charge control electric energy meters.
Embodiment
The course of work of the present embodiment is as follows as can be known by Fig. 2-3:
(1) closed shunted exciter tripping type miniature circuit breaker 1 hands-off, input terminal X1, the Y1 of described shunted exciter tripping type miniature circuit breaker 1 connect the 220V AC power by K switch; The lead-out terminal X2 of described shunted exciter tripping type miniature circuit breaker 1 and Y2 connect respectively A1 end and the A2 end of oscillograph 2, the unsettled placement of shunted exciter tripping signal terminal X3 of described shunted exciter tripping type miniature circuit breaker 1, and annexation is referring to Fig. 1;
(2) closed described K switch shows one section sinusoidal waveform on described oscillograph 2, described sinusoidal waveform is take described K switch closure as initial point, take described shunted exciter tripping type miniature circuit breaker 1 tripping operation as terminal point;
(3) by adjusting the sinusoidal waveform on described oscillograph 2, make it be compressed into the form that envelope is square wave, this moment, waveform was referring to Fig. 3, read the width value of described square wave this moment, be the duration of high voltage signal, the described duration is the shunted exciter tripping type miniature circuit breaker 1 rear delay-action time 1.464s that powers on.
If the time that should the time export the shunted exciter tripping signal greater than the local charge control electric energy meter after the internal processes judgement illustrates that miniature circuit breaker is available, can not cause the secondary power-off fault to the user.
A kind of miniature circuit breaker of measuring disclosed in this invention powers on that the method for rear delay voltage time can be incorporated into after sampling observation before miniature circuit breaker, box of electric energy meter arrival, arrival sampling observation and full check is received in experiment, test analysis by the method, realized that the shunted exciter tripping type miniature circuit breaker rear delay voltage time test that powers on is had higher accuracy and reliability.For the quality management and control of intelligent electric energy meter and batch meter provides strong technical support, avoid the economic loss of bringing to electric power enterprise.
The present invention's oscillograph model used is FLUKE199C.
Claims (2)
1. measure the power on method of rear delay voltage time of miniature circuit breaker for one kind, it is characterized in that step is as follows:
1) closed shunted exciter tripping type miniature circuit breaker (1) hands-off, input terminal X1, the Y1 of described shunted exciter tripping type miniature circuit breaker (1) connect the 220V AC power by K switch; The lead-out terminal X2 of described shunted exciter tripping type miniature circuit breaker (1) and Y2 connect respectively A1 end and the A2 end of oscillograph (2), the unsettled placement of shunted exciter tripping signal terminal X3 of described shunted exciter tripping type miniature circuit breaker (1);
2) closed described K switch, at one section sinusoidal waveform of the upper demonstration of described oscillograph (2), described sinusoidal waveform is take described K switch closure as initial point, take described shunted exciter tripping type miniature circuit breaker (1) tripping operation as terminal point;
3) by adjusting the sinusoidal waveform on described oscillograph (2), make it be compressed into the form that envelope is square wave, read the width value of described square wave this moment, i.e. the duration of high voltage signal, the described duration is that shunted exciter tripping type miniature circuit breaker (1) powers on the rear delay-action time.
2. a kind of power on method of rear delay voltage time of miniature circuit breaker of measuring according to claim 1, is characterized in that described oscillograph (2) model is FLUKE199C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201310012379.3A CN103091628B (en) | 2013-01-14 | 2013-01-14 | A kind of measure miniature circuit breaker power on after the method for delay voltage time |
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| CN201310012379.3A CN103091628B (en) | 2013-01-14 | 2013-01-14 | A kind of measure miniature circuit breaker power on after the method for delay voltage time |
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| CN103091628A true CN103091628A (en) | 2013-05-08 |
| CN103091628B CN103091628B (en) | 2016-04-20 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106124977A (en) * | 2016-06-29 | 2016-11-16 | 南京国电南自电网自动化有限公司 | A kind of relay contact analog control system method based on virtual instrument |
| CN111051904A (en) * | 2017-09-12 | 2020-04-21 | 东京毅力科创株式会社 | Voltage applying device and method for forming output voltage waveform |
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| CN201892731U (en) * | 2010-11-25 | 2011-07-06 | 固馨电气(上海)有限公司 | Portable tester for tripping characteristic of circuit breaker, |
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| CN201266233Y (en) * | 2008-08-20 | 2009-07-01 | 李建民 | Checkout console for circuit breaker deferred action characteristic |
| CN101509955A (en) * | 2009-03-26 | 2009-08-19 | 四川电力试验研究院 | Automatic test system of dc circuit breaker characteristic parameter |
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| 张元敏等: "预付费微型断路器分励脱扣器的研究", 《电力系统保护与控制》, vol. 36, no. 17, 1 September 2008 (2008-09-01) * |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106124977A (en) * | 2016-06-29 | 2016-11-16 | 南京国电南自电网自动化有限公司 | A kind of relay contact analog control system method based on virtual instrument |
| CN111051904A (en) * | 2017-09-12 | 2020-04-21 | 东京毅力科创株式会社 | Voltage applying device and method for forming output voltage waveform |
| CN111051904B (en) * | 2017-09-12 | 2022-04-01 | 东京毅力科创株式会社 | Voltage applying device and method for forming output voltage waveform |
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| CN103091628B (en) | 2016-04-20 |
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Inventor after: Feng Bo Inventor after: Shi Lun Inventor after: Ma Hongming Inventor after: Wang Junlong Inventor after: Wang Ruixin Inventor after: Li Li Inventor after: Zhang Jing Inventor after: Hou Shuanglin Inventor after: Li Shilin Inventor before: Feng Bo Inventor before: Shi Lun Inventor before: Ma Hongming Inventor before: Wang Junlong Inventor before: Wang Ruixin Inventor before: Li Li Inventor before: Zhang Jing |
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Address after: 050021 No. 238, TIYU South Street, Shijiazhuang City, Hebei Province Patentee after: STATE GRID HEBEI ELECTRIC POWER Research Institute Patentee after: STATE GRID CORPORATION OF CHINA Patentee after: STATE GRID HEBEI ENERGY TECHNOLOGY SERVICE Co.,Ltd. Address before: 050021 No. 238, TIYU South Street, Shijiazhuang City, Hebei Province Patentee before: Electric Power Research Institute of Hebei Electric Power Corp. Patentee before: State Grid Corporation of China Patentee before: HEBEI ELECTRIC POWER COMMISSIONING INSTITUDE |
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Effective date of registration: 20211009 Address after: 050021 No. 238, TIYU South Street, Shijiazhuang City, Hebei Province Patentee after: STATE GRID HEBEI ELECTRIC POWER Research Institute Patentee after: Marketing service center of State Grid Hebei Electric Power Co.,Ltd. Patentee after: STATE GRID CORPORATION OF CHINA Patentee after: STATE GRID HEBEI ENERGY TECHNOLOGY SERVICE Co.,Ltd. Address before: 050021 No. 238, TIYU South Street, Shijiazhuang City, Hebei Province Patentee before: STATE GRID HEBEI ELECTRIC POWER Research Institute Patentee before: STATE GRID CORPORATION OF CHINA Patentee before: STATE GRID HEBEI ENERGY TECHNOLOGY SERVICE Co.,Ltd. |
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