CN102944834B - A kind of detection method of prepayment meter definite purpose circuit breaker and device - Google Patents
A kind of detection method of prepayment meter definite purpose circuit breaker and device Download PDFInfo
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- CN102944834B CN102944834B CN201210452865.2A CN201210452865A CN102944834B CN 102944834 B CN102944834 B CN 102944834B CN 201210452865 A CN201210452865 A CN 201210452865A CN 102944834 B CN102944834 B CN 102944834B
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- isolating switch
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- 238000001514 detection method Methods 0.000 title abstract description 15
- 238000012360 testing method Methods 0.000 claims abstract description 26
- 238000002955 isolation Methods 0.000 claims abstract description 10
- 238000011056 performance test Methods 0.000 abstract description 5
- 238000010792 warming Methods 0.000 abstract description 3
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 238000011990 functional testing Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
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- Indication And Recording Devices For Special Purposes And Tariff Metering Devices (AREA)
- Emergency Protection Circuit Devices (AREA)
Abstract
The present invention relates to a kind of detection method and device of prepayment meter definite purpose circuit breaker, device is made up of high-temperature test chamber, 3 pressure regulators, 2 current lifting devices, 2 road current circuits and 1 road potential circuits.Two-way isolation current circuit receives electric current wiring inlet end and the endpiece formation loop of isolating switch respectively.Potential circuit is connected to the end of incoming cables of two-way current circuit, and circuit breaker control wire is received the control line interface of isolating switch end of incoming cables.Detecting step is: (1) by testing requirement wiring, isolating switch is placed in high-low temperature test chamber; (2) high-low temperature test chamber is warming up to 70 DEG C; (3) Closed control contactor, isolating switch boosts to rated voltage, and current lifting device up-flow is to rated current, and constant temperature measures 4 hours; Whether Observe and measure time inner breaker there is tripping operation; (4) disconnect control circuit switch, observe isolating switch and whether trip.The present invention carries out electric current and voltage trip performance test to prepayment meter definite purpose circuit breaker simultaneously, and the test of pre-payment operation circuit function.
Description
Technical field
The invention belongs to electric equipment field of measuring technique, relate to a kind of detection method and device of prepayment meter definite purpose circuit breaker.
Background technology
The external switch of prepayment meter adopts the definite purpose circuit breaker having shunted exciter tripping function.Different from normal circuit breaker, prepayment meter definite purpose circuit breaker, except having overcurrent release function, also has voltage shunted exciter tripping function.Show the statistical study of electric energy meter operation troubles, when running in high temperature environments, the number of faults caused due to isolating switch misoperation is more.For making prepayment meter normally work, avoid occurring extremely, needing to carry out hot test detection to isolating switch.
The hot test of prepayment meter definite purpose circuit breaker comprises current-release functional test under hot environment and voltage trip functional test.Normal circuit breaker hot test only carries out current-release functional test, adopts single loop current-series mode.The prepayment meter definite purpose circuit breaker high temperature of prior art is detected as the separately test of electric current, voltage, when electric current is applied to isolating switch, loop is in short-circuit condition, voltage cannot be applied simultaneously, can not electric current be applied when applying voltage, isolating switch electric current in high temperature environments and voltage trip performance cannot be detected simultaneously.Separately process of the test is loaded down with trivial details, and detection time is long, and can not reflect the practical operation situation of electric energy meter.During this external hot test, also need the Interruption detecting prepayment meter control circuit.
Summary of the invention
For overcoming the deficiencies in the prior art, the invention provides a kind of detection method of prepayment meter definite purpose circuit breaker, detect the de-mouth performance of current-release performance, voltage trip performance and pre-payment control circuit simultaneously, meet the needs that the performance test under prepayment meter definite purpose circuit breaker hot environment is tested.
The detection method of prepayment meter definite purpose circuit breaker of the present invention, detecting step is as follows:
(1) isolating switch is placed in high-low temperature test chamber, two-way is isolated electric current wiring end of incoming cables and leading-out terminal that current circuit receives isolating switch respectively, the two ends of potential circuit are received respectively the end of incoming cables of two current circuits, the two ends of control circuit are connected to control line interface;
(2) high-low temperature test chamber is warming up to 70 DEG C;
(3) Closed control contactor, close a switch handle, and isolating switch boosts to rated voltage, and current lifting device up-flow is to rated current, and constant temperature measures 4 hours; Whether Observe and measure time inner breaker there is tripping operation, does not occur that tripping operation shows that cut-out function is normal;
(4) whether disconnect control circuit switch, observe isolating switch and trip, tripping operation shows that pre-payment controlling functions is normal.
Rated voltage is 220V, and rated current is 50 ~ 70A.
The pick-up unit of prepayment meter definite purpose circuit breaker of the present invention, comprises working power, No. 1 pressure regulator, No. 1 current lifting device, No. 1 isolation current circuit, high-low temperature test chamber and switch, detected isolating switch is housed in high-low temperature test chamber.Working power is isolated current circuit by switch, No. 1 pressure regulator, No. 1 current lifting device be connected with No. 1, and No. 1 two ends isolating current circuit are connected respectively to end of incoming cables and the leading-out terminal of circuit breaker current wiring.Pick-up unit is provided with No. 2 pressure regulators, No. 2 current lifting devices, No. 2 buffer circuits, No. 3 pressure regulators, potential circuit and control circuits.Working power is isolated electric current by switch, No. 2 pressure regulators, No. 2 current lifting devices be connected with No. 2, and No. 2 two ends isolating current circuits are connected respectively to end of incoming cables and the leading-out terminal of circuit breaker current wiring.Working power is connected with potential circuit by switch No. 3 pressure regulators, and the two ends of potential circuit are connected respectively to the end of incoming cables of two-way isolation current circuit.Control circuit two ends are connected to the control line interface of isolating switch, and control circuit is provided with control circuit switch.
The pick-up unit of prepayment meter definite purpose circuit breaker of the present invention is on the basis of single loop current circuit, increase a road current return and a road voltage circuit, while detection current-release performance, detect voltage trip performance, meet the performance test in high temperature environments of intelligent electric energy meter definite purpose circuit breaker and test needs, and carry out the performance test of pre-payment control circuit, improve prepayment meter definite purpose circuit breaker high temperature detection efficiency, guarantee the stable and reliable for performance of isolating switch.The structure of the detecting device of prepayment meter definite purpose circuit breaker of the present invention is simple, and cost is low, can carry out the detection of current-release, voltage trip and control circuit simultaneously, and detection method is simple, and Detection results is good.
Accompanying drawing explanation
Fig. 1 is the detection method schematic flow sheet of prepayment meter definite purpose circuit breaker of the present invention;
Fig. 2 is the wiring schematic diagram of prepayment meter definite purpose circuit breaker pick-up unit of the present invention;
Fig. 3 is the wiring schematic diagram of prepayment meter definite purpose circuit breaker.
Wherein:
1-working power, 2-switch, 3-No. 1 pressure regulator, 4-No. 1 current lifting device, 5-No. 1 isolation current circuit, 6-No. 2 pressure regulators, 7-No. 2 current lifting devices, 8-No. 3 pressure regulators, 9-potential circuit, 10-high-low temperature test chamber, 11-end of incoming cables, 12-leading-out terminal, 13-control line interface, 14-switch knob, 15-isolating switch, 16-control circuit switch, 17-No. 2 buffer circuits, 18-control circuits.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in detail.
The pick-up unit of prepayment meter definite purpose circuit breaker of the present invention, as shown in Figure 2, No. 4,1, working power 1, No. 1 pressure regulator 3, No. 1 current lifting device isolation current circuit 5, No. 2 pressure regulators 6, No. 2 current lifting devices 7, No. 2 detached flow circuit 17, No. 3 pressure regulators 8, potential circuit 9, switch 2 and high-low temperature test chambers 10 are comprised.Detected isolating switch is housed in high-low temperature test chamber, and isolating switch 15 is provided with P, N two-way current circuit, control circuit 18 and switch knob 14 as shown in Figure 3.Two-way current circuit is provided with electric current wiring end of incoming cables 11 and leading-out terminal 12, and control circuit is provided with control circuit switch 16, and control line interface 13 is inserted at two of control circuit.Working power is isolated current circuit by switch, No. 1 pressure regulator, No. 1 current lifting device be connected with No. 1, and No. 1 two ends isolating current circuit are connected respectively to end of incoming cables 11 and the leading-out terminal 12 of the wiring of isolating switch P electrode current.Working power is isolated current circuit by switch, No. 2 pressure regulators, No. 2 current lifting devices be connected with No. 2, and No. 2 two ends isolating current circuits are connected respectively to end of incoming cables and the leading-out terminal of the wiring of isolating switch N electrode current.Working power is connected with potential circuit by switch, No. 3 pressure regulators, and the two ends of potential circuit are connected respectively to the end of incoming cables of two-way isolation current circuit.
As shown in Figure 1, concrete detecting step is as follows for the testing process of prepayment meter definite purpose circuit breaker of the present invention:
(1) connect the line as described above, isolating switch 15 is placed in high-low temperature test chamber 10.
(2) high-low temperature test chamber 10 is warming up to 70 DEG C.
(3) Closed control contactor 16, close a switch handle 14, and isolating switch boosts to 220V, and current lifting device up-flow is to 63A, and constant temperature measures 4 hours. and whether Observe and measure time inner breaker there is tripping operation, does not occur that tripping operation shows that cut-out function is normal.
(4) whether disconnect control circuit switch (16), observe isolating switch and trip, tripping operation shows that pre-payment controlling functions is normal.
The present invention adopts two-way to isolate the mode of electric current and a road independent voltage, by voltage circuit and two-way isolation electric current loop on, during hot test, electric current and voltage trip performance test are carried out to prepayment meter definite purpose circuit breaker simultaneously, carry out the test of pre-payment operation circuit function in addition.Improve Detection results, be conducive to improving applying of isolating switch usability and prepayment meter.
Claims (1)
1. the pick-up unit of a prepayment meter definite purpose circuit breaker, comprise working power (1), No. 1 pressure regulator (3), No. 1 current lifting device (4), No. 1 isolation current circuit (5), high-low temperature test chamber (10) and switch (2), detected isolating switch (15) is housed in high-low temperature test chamber; Working power is isolated current circuit by switch, No. 1 pressure regulator, No. 1 current lifting device be connected with No. 1, the two ends of No. 1 isolation current circuit are connected respectively to end of incoming cables (11) and the leading-out terminal (12) of circuit breaker current wiring, it is characterized in that: described device is provided with No. 2 pressure regulators (6), No. 2 current lifting devices (7), No. 2 buffer circuits (17), No. 3 pressure regulators (8), potential circuit (9) and control circuits (18); Working power is isolated electric current by switch, No. 2 pressure regulators, No. 2 current lifting devices be connected with No. 2, and No. 2 two ends isolating current circuits are connected respectively to end of incoming cables and the leading-out terminal of circuit breaker current wiring; Working power is connected with potential circuit (9) by switch, No. 3 pressure regulators, and the two ends of potential circuit are connected respectively to the end of incoming cables of two-way isolation current circuit; Described control circuit two ends are connected to the control line interface (13) of isolating switch (15), and control circuit is provided with control circuit switch (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210452865.2A CN102944834B (en) | 2012-11-13 | 2012-11-13 | A kind of detection method of prepayment meter definite purpose circuit breaker and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210452865.2A CN102944834B (en) | 2012-11-13 | 2012-11-13 | A kind of detection method of prepayment meter definite purpose circuit breaker and device |
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| Publication Number | Publication Date |
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| CN102944834A CN102944834A (en) | 2013-02-27 |
| CN102944834B true CN102944834B (en) | 2016-02-03 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106093759B (en) * | 2016-05-31 | 2018-10-19 | 国网河北省电力公司电力科学研究院 | Method for detecting driving capability of external load switch for electric energy meter |
| CN106646208A (en) * | 2016-10-19 | 2017-05-10 | 中国电力科学研究院 | Detection test method for performance of load switch of electric energy meter |
| CN110988671A (en) * | 2020-03-04 | 2020-04-10 | 南京捷泰电力设备有限公司 | Integrated device suitable for testing, checking and electrifying aging of miniature circuit breaker |
| CN114384318B (en) * | 2022-01-04 | 2023-05-23 | 宁波迦南智能电气股份有限公司 | Tripping alarm method of external circuit breaker of electric energy meter |
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| DE4416781A1 (en) * | 1994-05-09 | 1995-11-23 | Forgenta Forschungstechnik Und | Method for monitoring and displaying arc control in circuit breaker |
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2012
- 2012-11-13 CN CN201210452865.2A patent/CN102944834B/en active Active
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| JPS56151368A (en) * | 1980-04-25 | 1981-11-24 | Toshiba Corp | Method of three-phase breaking test |
| DE4416781A1 (en) * | 1994-05-09 | 1995-11-23 | Forgenta Forschungstechnik Und | Method for monitoring and displaying arc control in circuit breaker |
| DE19536254C1 (en) * | 1995-09-28 | 1997-04-17 | Siemens Ag | Humidity determination esp. for encapsulated switchgear assembly esp. when used in tropical region |
| CN2365746Y (en) * | 1999-03-03 | 2000-02-23 | 薛军 | Induction voltage regulating integral apparatus for test |
| CN2821724Y (en) * | 2005-08-12 | 2006-09-27 | 上海市电力公司市南供电公司 | Hand high voltage breaker contact online temperature monitor |
| CN101149420A (en) * | 2006-09-18 | 2008-03-26 | 北京航空航天大学 | SF6 circuit breaker gas on-line monitor |
| CN201278013Y (en) * | 2008-10-17 | 2009-07-22 | 东北电力科学研究院有限公司 | Overcurrent performance test apparatus for automatic air switch |
| CN201637823U (en) * | 2010-01-06 | 2010-11-17 | 杨平宁 | Test bench for special miniature breaker for railway signalling |
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| CN102944834A (en) | 2013-02-27 |
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