CN103500356A - Electronic counter for circuit breakers - Google Patents
Electronic counter for circuit breakers Download PDFInfo
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- CN103500356A CN103500356A CN201310475736.XA CN201310475736A CN103500356A CN 103500356 A CN103500356 A CN 103500356A CN 201310475736 A CN201310475736 A CN 201310475736A CN 103500356 A CN103500356 A CN 103500356A
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Abstract
The invention discloses an electronic counter for circuit breakers, which comprises an acquisition module, analog-to-digital conversion modules, a singlechip, a display module, a memory module, a wireless transmission module and an Ethernet interface. The acquisition module acquires and transmits the four channels of voltage signals of a circuit breaker auxiliary circuit normally opened contact S1, a circuit breaker auxiliary circuit normally opened contact S2, a circuit breaker closing control switch S3 and a circuit breaker opening control switch S4 to the analog-to-digital conversion modules; the analog-to-digital conversion modules carry out analog-to-digital conversion on the four channels of received voltage signals, and generate and transmit digital signals to the singlechip; the singlechip processes the received digital signals, and transmits the processed digital signals to the display module, the memory module, the wireless transmission module and the Ethernet interface; the received digital signals are displayed by the display module; the received digital signals are stored by the memory module; the wireless transmission module wirelessly transmits the received digital signals to a console; and the Ethernet interface transmits the received digital signals to the console via the Ethernet.
Description
Technical field
The present invention relates to the electronic counter field, relate in particular to a kind of primary cut-out electronic counter.
Background technology
The counter of isolating switch shows and adds up the closing frequencies of isolating switch, the quality of counter is can directly not affect the normal operation of isolating switch at once, so whether counter can could not draw attention by accurate counting, even bad can not resemble timely repairing other equipment.But, along with the development of digital transformer substation and the requirement of intelligent grid, it is very important that the numeral of intelligent breaker accurately gathers, because counter not only will reflect action frequency and the action situation of isolating switch, but also to utilize the network transmission information that makes progress.And present counter electric loop is the two ends that are connected on the zygonema circle, after the counter coil is received incoming call, the driving mechanical action shows number of times, because the bite fault often appears in mechanical part, so counting is very inaccurate.And counter can only calculate the energising number of times of electric closing coil, mechanical trip (comprising closing by hand) just can't be counted.More important question is that counter is not installed in trip(ping) circuit, from reason, there is combined floodgate that tripping operation is just arranged, just can know the tripping operation number of times so only need to counting closes a floodgate, but tripping operation exists electric tripping and hand trip(ping), because can't reflecting, old-fashioned counter monitors isolating switch operating state and parameter, so can't judge electrical control action or mechanical trip when breaking down tripping operation.Therefore, originally the counter of isolating switch can't adapt to the service requirement of digital transformer substation intelligence.
Summary of the invention
In order to overcome the deficiencies in the prior art, the invention provides a kind of primary cut-out electronic counter of realizing breaker closing counting and separating brake counting, to meet the service requirement of digital transformer substation intelligence.
For achieving the above object, of the present inventionly take following technical scheme:
A kind of breaker electronic counter, comprise acquisition module, analog-to-digital conversion module, single-chip microcomputer, display module, memory module, wireless transport module and Ethernet interface;
Described acquisition module, for gathering isolating switch subsidiary loop normally opened contact S1, isolating switch subsidiary loop normally opened contact S2, breaker closing gauge tap S3 and breaker open operation gauge tap S4 tetra-road voltage signals, and send to analog-to-digital conversion module;
Analog-to-digital conversion module, carry out analog to digital conversion for the four road voltage signals that will receive, and the generating digital signal also sends to single-chip microcomputer;
Single-chip microcomputer, processed for the digital signal by receiving, and the digital signal after processing is sent to display module, memory module, wireless transport module and Ethernet interface;
Display module, shown for the digital signal by receiving;
Memory module, stored for the digital signal by receiving;
Wireless transport module, be wirelessly transmitted to control desk for the digital signal by receiving;
Ethernet interface, send to control desk for the digital signal by receiving by Ethernet.
Further, single-chip microcomputer is the AT89S52 chip,, there is powerful arithmetic capability and anti-interference.
Beneficial effect: the present invention is applied in the digital transformer substation intelligent breaker, but the accurate counting isolating switch minute, closing frequencies, the life-span of capable of dynamic assessment isolating switch, effectively monitor isolating switch minute, the combined floodgate situation, and according to the position of the reading failure judgement of counter, finally data transmission can be carried out in several ways, for intelligent grid provides decision-making foundation.
The accompanying drawing explanation
Fig. 1 is fundamental diagram of the present invention.
Fig. 2 is instantiation fundamental diagram of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the present invention is further described.
As shown in Figure 1, a kind of breaker electronic counter provided by the invention, comprise acquisition module, analog-to-digital conversion module, single-chip microcomputer, display module, memory module, wireless transport module and Ethernet interface;
Acquisition module, for gathering isolating switch subsidiary loop normally opened contact S1, isolating switch subsidiary loop normally opened contact S2, breaker closing gauge tap S3 and breaker open operation gauge tap S4 tetra-road voltage signals, and send to analog-to-digital conversion module; DC positive power is from the auxiliary recessed road normally opened contact S1 access microcomputer of isolating switch.DC positive power is from breaker closing gauge tap S3 (closing coil Y3) access microcomputer.Microcomputer is monitored the voltage of normally opened contact S1 and combined floodgate gauge tap S3 simultaneously.S1 closing of contact during breaker closing, microcomputer sends the signal that breaker body closes a floodgate.When microcomputer is received the voltage of combined floodgate gauge tap S3, send the signal of the electric combined floodgate of isolating switch.The number of times of the corresponding demonstration breaker body of microcomputer and electric combined floodgate, time preservation during normal the combined floodgate.If microcomputer is only received the signal of S1, illustrate that isolating switch may be that closing by hand or other former ridges cause that mechanical unlocking closes a floodgate, and belong to the problem of mechanism, and control loop has no relations.If microcomputer is only received the voltage of S3, explanation is breaker control circuit incoming call but breaker body closes not brake application, at this time should find out it is normal switching signal, or relay misoperation or secondary cable earth fault causes, normal switching signal further ascertains the reason again in this way.
DC positive power connects people's microcomputer from the subsidiary loop normally closed contact S2 of isolating switch, and DC positive power is from the voltage access microcomputer of breaker open operation gauge tap S4.The voltage of microcomputer while monitoring contact S2 and separating brake gauge tap S4, S2 closing of contact during breaker open operation, microcomputer sends the signal of breaker body separating brake, when microcomputer is received the S4 incoming call, send the signal of the electric separating brake of isolating switch, the number of times of the corresponding demonstration breaker body of microcomputer and electric separating brake, time preservation during normal separating brake.If microcomputer is only received the signal of S2, illustrate that isolating switch may be that manual brake separating or other reasons cause the mechanical unlocking jump, belong to the problem of mechanism, and control loop has no relations.If microcomputer is only received the signal of switching winding, explanation is that breaker open operation control loop incoming call but isolating switch can not separating brakes, at this time should find out it is normal sub-gate signal, or relay flood is moving or secondary cable earth fault causes, normal sub-gate signal and can not further ascertaining the reason again by separating brake in this way.
Analog-to-digital conversion module, carry out analog to digital conversion for the four road voltage signals that will receive, and the generating digital signal also sends to single-chip microcomputer; Single-chip microcomputer, processed for the digital signal by receiving, and the digital signal after processing is sent to display module, memory module, wireless transport module and Ethernet interface; Display module, shown for the digital signal by receiving; Memory module, stored for the digital signal by receiving; Wireless transport module, be wirelessly transmitted to control desk for the digital signal by receiving; Ethernet interface, send to control desk for the digital signal by receiving by Ethernet.
Below in conjunction with example, be described further, as shown in Figure 2, electronic counter gathers respectively isolating switch subsidiary loop normally opened contact S1, isolating switch subsidiary loop normally opened contact S2, breaker closing gauge tap S3 and breaker open operation gauge tap S4 tetra-road voltage signals, and sends to single chip computer AT 89S52 by analog to digital converter AD7705.
(1) complete machine power supply wiring adopts the voltage of the 220VDC of transformer station, and therefore voltage conversion need to being reduced to after 5-12VDC passes on a skill of craft to others to the AT89S52 chip processes.The step-down mode adopts the simplest electric resistance partial pressure mode, and the pure resistor element circuit best by linearity converts 0-240VDc to 5-12VDC, adopts the accurate adjustable resistance of precision resistance and multi-turn in circuit, avoids conventional, electric-resistance to be subject to the impact of temperature to bring error to measurement.
(2) have the voltage signal successor to pass signal back AT89S52, then result is counted and is stored and be simultaneously displayed on lcd screen by DSl225Y, and record format is current date+time+loop numbering.Design adopts the DSl225Y-150 of U.S.'s Maxim, and to guarantee after dead electricity, the content of its storage inside can not lost.
The above is only the preferred embodiment of the present invention; be noted that for those skilled in the art; under the premise without departing from the principles of the invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (2)
1. a breaker electronic counter, is characterized in that: comprise acquisition module, analog-to-digital conversion module, single-chip microcomputer, display module, memory module, wireless transport module and Ethernet interface;
Described acquisition module, for gathering isolating switch subsidiary loop normally opened contact S1, isolating switch subsidiary loop normally opened contact S2, breaker closing gauge tap S3 and breaker open operation gauge tap S4 tetra-road voltage signals, and send to analog-to-digital conversion module;
Described analog-to-digital conversion module, carry out analog to digital conversion for the four road voltage signals that will receive, and the generating digital signal also sends to single-chip microcomputer;
Described single-chip microcomputer, processed for the digital signal by receiving, and the digital signal after processing is sent to display module, memory module, wireless transport module and Ethernet interface;
Described display module, shown for the digital signal by receiving;
Described memory module, stored for the digital signal by receiving;
Described wireless transport module, be wirelessly transmitted to control desk for the digital signal by receiving;
Described Ethernet interface, send to control desk for the digital signal by receiving by Ethernet.
2. a kind of breaker electronic counter according to claim 1, it is characterized in that: described single-chip microcomputer is the AT89S52 chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310475736.XA CN103500356A (en) | 2013-10-12 | 2013-10-12 | Electronic counter for circuit breakers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310475736.XA CN103500356A (en) | 2013-10-12 | 2013-10-12 | Electronic counter for circuit breakers |
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| Publication Number | Publication Date |
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| CN103500356A true CN103500356A (en) | 2014-01-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310475736.XA Pending CN103500356A (en) | 2013-10-12 | 2013-10-12 | Electronic counter for circuit breakers |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105959826A (en) * | 2016-04-29 | 2016-09-21 | 深圳创维－Rgb电子有限公司 | Method, device and system for processing message |
| CN110086459A (en) * | 2019-05-13 | 2019-08-02 | 华瑞昇电子（深圳）有限公司 | Cooperate the negtive micropressure switch of 24 ∑ △ A/D type single-chip microcontrollers based on electric resistance wire strain gauge |
| CN114281060A (en) * | 2021-12-15 | 2022-04-05 | 上海平高天灵开关有限公司 | Mechanical life test device based on singlechip |
| CN114400171A (en) * | 2022-01-06 | 2022-04-26 | 南京觅丹电子信息有限公司 | Electric operating mechanism with 485 interface |
| CN115424420A (en) * | 2022-07-19 | 2022-12-02 | 国网新疆电力有限公司博尔塔拉供电公司 | Circuit breaker switching-on times statistics and early warning device |
-
2013
- 2013-10-12 CN CN201310475736.XA patent/CN103500356A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105959826A (en) * | 2016-04-29 | 2016-09-21 | 深圳创维－Rgb电子有限公司 | Method, device and system for processing message |
| CN110086459A (en) * | 2019-05-13 | 2019-08-02 | 华瑞昇电子（深圳）有限公司 | Cooperate the negtive micropressure switch of 24 ∑ △ A/D type single-chip microcontrollers based on electric resistance wire strain gauge |
| CN114281060A (en) * | 2021-12-15 | 2022-04-05 | 上海平高天灵开关有限公司 | Mechanical life test device based on singlechip |
| CN114400171A (en) * | 2022-01-06 | 2022-04-26 | 南京觅丹电子信息有限公司 | Electric operating mechanism with 485 interface |
| CN115424420A (en) * | 2022-07-19 | 2022-12-02 | 国网新疆电力有限公司博尔塔拉供电公司 | Circuit breaker switching-on times statistics and early warning device |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140108 |
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| WD01 | Invention patent application deemed withdrawn after publication |