CN205050794U - Realize control circuit of many strokes of circuit breaker - Google Patents
Realize control circuit of many strokes of circuit breaker Download PDFInfo
- Publication number
- CN205050794U CN205050794U CN201520831576.2U CN201520831576U CN205050794U CN 205050794 U CN205050794 U CN 205050794U CN 201520831576 U CN201520831576 U CN 201520831576U CN 205050794 U CN205050794 U CN 205050794U
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- China
- Prior art keywords
- relay
- circuit breaker
- closing
- electric current
- microprocessor
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- Withdrawn - After Issue
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Abstract
The utility model discloses a realize control circuit of many strokes of circuit breaker, including microprocessor, anodal control generating line + KM, negative pole control generating line - KM, first electric current latching relay HBJ1, the supplementary normally closed contact DL of circuit breaker, closing coils HQ, closing relay HJ and manual closing operation switch KK, still include transfer relay QH, second electric current latching relay HBJ2 and temporary ripples relay MP, the low -voltage line phase sequence signboard is advantageous in that, the utility model discloses utilize the mode of microprocessor control switching element and then control closing coils's break -make, make the circuit breaker assist the normally closed contact to close a floodgate in first stroke of combined floodgate iron core and carry out a lot of stroke under the unsuccessful circumstances, avoided the order because the circuit breaker has been accepted to close a floodgate but do not had the circumstances of closing a floodgate successfully and resulting in the circuit breaker to be burnt to take place, secondly, the combined floodgate iron core of microprocessor control circuit breaker carries out many times the stroke can improve the circuit breaker under emergency combined floodgate success rate, brings bigger security assurances with the electrical safety who lives for production.
Description
Technical field
The utility model relates to power distribution station unit protection field, particularly relates to a kind of control circuit realizing the many strokes of circuit breaker.
Background technology
In order to prevent in opening operation current course point, the damage of closing relay contact, traditional point, shutting-brake control loop is all provided with electric current self-sustaining coil, due to point, the principle in shutting-brake control loop is the same, so we carry out principle explanation for closing circuit, closing circuit as shown in Figure 1, comprise microprocessor, positive pole control bus+KM, negative pole control bus-KM, electric current self-sustaining coil HBJ, circuit breaker assists normally closed contact DL, closing relay HJ, closing by hand console switch KK and closing coil HQ, the output of microprocessor is connected with closing relay HJ, for controlling the break-make of closing relay HJ, the normally opened contact of electric current self-sustaining coil HBJ, closing relay HJ is all connected with positive pole control bus+KM with the first end of closing by hand console switch KK, the normally opened contact of electric current self-sustaining coil HBJ, closing relay HJ, second end of closing by hand console switch KK is all connected with the first end of electric current self-sustaining coil HBJ, second end of electric current self-sustaining coil HBJ is connected with the first end of the normally-closed contact of normally closed circuit breaker HQ, second end and the circuit breaker of the normally-closed contact of normally closed circuit breaker HQ assist the first end of normally closed contact DL to be connected, circuit breaker assists second end of normally closed contact DL to be connected with the first end of closing coil HQ, second end of closing coil HQ is connected with negative pole control bus-KM, during normal work, CPU sends switching signal to closing relay HJ, closing relay HJ closes, and electric current self-sustaining coil HBJ is energized, breaker closing success, the normally opened contact of HBJ closes, this just makes closing coil HQ charged, makes circuit breaker assist normally closed contact DL to disconnect, the current vanishes of closing relay HJ after closing coil HQ is charged, CPU controls closing relay HJ and disconnects safely, and the feed motion of whole circuit breaker terminates, because the contact of closing relay HJ is easily burnt when "on" position disconnects, so the two ends of closing relay HJ are parallel with the contact of electric current latching relay HBJ, the current potential at closing relay HJ two ends keeps equal, prevents the contact of closing relay HJ from burning.
In reality, due to lubricants performance be deteriorated, the many reasons such as dust causes that mechanism's bite, coil insulation are aging, switching voltage step-down and iron core magnetic force go down, cause the once charged of closing coil HQ can not make breaker closing success (circuit breaker assists normally closed contact DL not disconnect), the electric current then leading to closing coil HQ would not interrupt, and then causes closing coil HQ to burn.
Utility model content
The utility model discloses a kind of control circuit realizing the many strokes of circuit breaker, solve traditional circuit breaker control circuit and problem that cause circuit breaker conjunction/switching winding burn unsuccessful due to single motion.
In order to solve the problem, the utility model by the following technical solutions:
A kind of many strokes circuit breaker realize loop, comprise microprocessor, positive pole control bus+KM, negative pole control bus-KM, the first electric current latching relay HBJ1, circuit breaker assist normally closed contact DL, closing coil HQ, closing relay HJ and closing by hand console switch KK, also comprise transfer relay QH, the second electric current latching relay HBJ2 and ripple relay MP temporarily;
The normally opened contact of the first electric current latching relay HBJ1, closing relay HJ is all connected with positive pole control bus+KM with the first end of closing by hand console switch KK, the normally opened contact of the first electric current latching relay HBJ1, closing relay HJ, second end of closing by hand console switch KK is all connected with the first end of the coil of the first electric current latching relay HBJ, second end of coil of the first electric current latching relay HBJ1 is connected with the first end of the normally-closed contact QH1 of transfer relay QH, second end of the normally-closed contact QH1 of transfer relay QH is connected with the first end of the coil of the second electric current latching relay HBJ2, second end of the coil of the second electric current latching relay HBJ2 assists the first end of normally closed contact DL to be connected with circuit breaker, circuit breaker assists second end of normally closed contact DL to be connected with the first end of closing coil HQ, second end of closing coil HQ is connected with negative pole control bus-KM, the first end of the normally opened contact QH2 of transfer relay QH is connected with positive pole control bus+KM, second end of the normally opened contact QH2 of transfer relay QH is connected with the first end of temporary ripple relay MP, temporary second end of ripple relay MP is connected with second end of the normally-closed contact QH1 of transfer relay QH, the normally opened contact of the second electric current latching relay HBJ2 is connected with microprocessor.
1. the microprocessor described in adopts universal cpu, DSP or single-chip microcomputer.
Also comprise display module, the input of described display module is connected with the output of microprocessor.
Also comprise sound and light alarm module, the described input of sound and light alarm module is connected with the output of microprocessor.
First, the utility model utilizes the mode of the break-make of Microprocessor S3C44B0X switching device and then control closing coil, make circuit breaker assist normally closed contact to close a floodgate in first stroke of combined floodgate iron core in unsuccessful situation and carry out repeatedly stroke, avoid because circuit breaker receives the order but do not close a floodgate successfully and cause breaker closing coil to be occurred by the situation of burning of closing a floodgate; Secondly, the combined floodgate iron core of Microprocessor S3C44B0X circuit breaker carries out repeatedly the combined floodgate success rate that stroke can improve circuit breaker under circuit breaker Subhealthy Status, for the Electrical Safety of producing and live brings larger safety assurance; Again, the utility model additionally uses display module, whether the contact regardless of circuit breaker successfully closes a floodgate, and microprocessor all can control the state that display module demonstrates circuit breaker, avoids staff and causes the situation occurring loss to occur owing to not knowing the operating state of circuit breaker; Finally, the utility model additionally uses sound and light alarm module, and when circuit breaker failure, microprocessor can control sound and light alarm module and send sound and light alarm, reminds staff to overhaul in time, avoids resulting in greater loss.
Accompanying drawing explanation
Fig. 1 is traditional breaker control circuit schematic diagram;
Fig. 2 is the schematic diagram realizing loop of the many strokes of circuit breaker described in the utility model;
Fig. 3 is the principle schematic that the many strokes of Microprocessor S3C44B0X occur.
Embodiment
As shown in Figures 2 and 3, a kind of control circuit realizing the many strokes of circuit breaker described in the utility model, comprise microprocessor, positive pole control bus+KM, negative pole control bus-KM, the first electric current latching relay HBJ1, circuit breaker assist normally closed contact DL, closing coil HQ, closing relay HJ and closing by hand console switch KK, also comprise transfer relay QH, the second electric current latching relay HBJ2 and ripple relay MP temporarily; Described microprocessor adopts microprocessor or single-chip microcomputer; Staff can use closing by hand console switch KK to carry out combined floodgate work.
The normally opened contact of the first electric current latching relay HBJ1, closing relay HJ is all connected with positive pole control bus+KM with the first end of closing by hand console switch KK, the normally opened contact of the first electric current latching relay HBJ1, closing relay HJ, second end of closing by hand console switch KK is all connected with the first end of the coil of the first electric current latching relay HBJ1, second end of coil of the first electric current latching relay HBJ1 is connected with the first end of the normally-closed contact QH1 of transfer relay QH, second end of the normally-closed contact QH1 of transfer relay QH is connected with the first end of the coil of the second electric current latching relay HBJ2, second end of the coil of the second electric current latching relay HBJ2 assists the first end of normally closed contact DL to be connected with circuit breaker, circuit breaker assists second end of normally closed contact DL to be connected with the first end of closing coil HQ, second end of closing coil HQ is connected with negative pole control bus-KM, the first end of the normally opened contact QH2 of transfer relay QH is connected with positive pole control bus+KM, second end of the normally opened contact QH2 of transfer relay QH is connected with the first end of temporary ripple relay MP, temporary second end of ripple relay MP is connected with second end of the normally-closed contact QH1 of transfer relay QH, the normally opened contact of the second electric current latching relay HBJ2 is connected with microprocessor, many strokes of circuit breaker realize loop and also comprise display module, and the input of display module is connected with the output of microprocessor, and display module is for showing the state of circuit breaker, many strokes of circuit breaker realize loop and also comprise sound and light alarm module, and the input of sound and light alarm module is connected with the output of microprocessor, and sound and light alarm module sends sound and light alarm when circuit breaker failure.
When using this control circuit, first, microprocessor is to closing relay HJ switching signal, closing relay HJ is energized closed, the coil of the first electric current latching relay HBJ1 obtains electric, the closing of contact of the first electric current latching relay HBJ1, the normally-closed contact QH1 of transfer relay QH, the coil of the second electric current latching relay HBJ2, the series circuit conducting that circuit breaker assists normally closed contact DL and closing coil HQ to form, closing coil HQ is energized, combined floodgate iron core action in closing coil the trip gear of impulse circuit-breaker, if the trip gear of circuit breaker is closed a floodgate, iron core is washed open, the i.e. normally-closed contact QH1 of transfer relay QH, the coil of the second electric current latching relay HBJ2, the series circuit that circuit breaker assists normally closed contact DL and closing coil HQ to form disconnects, the then coil losing electricity of the second electric current latching relay HBJ2, the normally opened contact of the second electric current latching relay HBJ2 should disconnect, if therefore micro-process detects in M millisecond (the combined floodgate iron core of closing coil HQ is from the stressed time accelerated to required for the trip gear washing circuit breaker open), the normally opened contact of the second electric current latching relay HBJ2 disconnects, namely breaker closing successfully assists normally closed contact DL normally to disconnect, then (micro-process is widely used in electric control field to microprocessor controls display module display " circuit breaker normally closes a floodgate ", utilize microcontroller acquires on off state and control display module and all belong to prior art, here repeat no more), if after micro-process detects M millisecond, the normally opened contact of the second electric current latching relay HBJ2 does not disconnect, namely circuit breaker closes a floodgate first and unsuccessfully assists normally closed contact DL normally not disconnect, then Microprocessor S3C44B0X transfer relay QH contact change-over, namely normally-closed contact QH1 disconnects, normally opened contact QH2 has closed the switching of control mode, after having switched M millisecond, microprocessor controls temporary ripple relay MP by control circuit again and closes M millisecond, the normally opened contact QH2 of transfer relay QH, temporary ripple relay MP, the coil of the second electric current latching relay HBJ2, the series circuit conducting that circuit breaker assists normally closed contact DL and closing coil HQ to form, if microprocessor detects that the normally opened contact of the second electric current latching relay HBJ2 disconnects in M millisecond, then Microprocessor S3C44B0X display module display " circuit breaker is in sub-health state ", combined floodgate work is completed in circuit breaker second stroke, if microprocessor does not detect that the normally opened contact of the second electric current latching relay HBJ2 disconnects, then microprocessor first controls temporary ripple relay MP power-off M millisecond, and iron core is resetted completely, control temporary ripple relay MP energising M millisecond again and make the maximum acceleration upper punch of iron core, in M millisecond, if microprocessor detects that the normally opened contact of successful the second electric current latching relay HBJ2 of closing a floodgate disconnects, then Microprocessor S3C44B0X display module display " circuit breaker is in sub-health state ", circuit breaker assists normally closed contact DL to complete combined floodgate work in the second stroke, if microprocessor do not detect the second electric current latching relay HBJ2 normally opened contact disconnect, then microprocessor repeat give temporary ripple relay MP power-off and energising, until microprocessor detect the second electric current latching relay HBJ2 normally opened contact disconnect, if after ripple relay MP power-off temporarily and energising repeat n time, if microprocessor does not still detect that the normally opened contact of the second electric current latching relay HBJ2 disconnects, namely circuit breaker assists normally closed contact DL combined floodgate unsuccessful, then Microprocessor S3C44B0X display module display " circuit breaker failure ", and Microprocessor S3C44B0X sound and light alarm module sends sound and light alarm.
Described M millisecond is 300 milliseconds, and n time described in step D is 4-10 time; Because in the present embodiment, because the combined floodgate iron core of existing closing coil HQ is not more than 300 milliseconds from the stressed time accelerated to required for the trip gear washing circuit breaker open, so the M millisecond of the present embodiment adopts 300 milliseconds; And the number of times of the continuous energising be subject to due to the closing coil of existing circuit breaker too much easily causes the Burnout of Closing Coil of circuit breaker, so we select N time for 4-10 time.
First, the utility model utilizes the mode of the break-make of Microprocessor S3C44B0X switching device and then control closing coil, make circuit breaker assist normally closed contact to close a floodgate in first stroke of combined floodgate iron core in unsuccessful situation and carry out repeatedly stroke, avoid because circuit breaker receives the order but do not close a floodgate successfully and cause circuit breaker to be occurred by the situation of burning of closing a floodgate; Secondly, the combined floodgate iron core of Microprocessor S3C44B0X circuit breaker carry out repeatedly stroke circuit breaker Subhealthy Status under can improve the combined floodgate success rate of circuit breaker, for produce and the Electrical Safety of life brings larger safety assurance; Again, the utility model additionally uses display module, whether the contact regardless of circuit breaker successfully closes a floodgate, and microprocessor all can control the state that display module demonstrates circuit breaker, avoids staff and causes the situation occurring loss to occur owing to not knowing the operating state of circuit breaker; Finally, the utility model additionally uses sound and light alarm module, and when circuit breaker failure, microprocessor can control sound and light alarm module and send sound and light alarm, reminds staff to overhaul in time, avoids resulting in greater loss.
Claims (4)
1. one kind realizes the control circuit of the many strokes of circuit breaker, comprise microprocessor, positive pole control bus+KM, negative pole control bus-KM, the first electric current latching relay HBJ1, circuit breaker assist normally closed contact DL, closing coil HQ, closing relay HJ and closing by hand console switch KK, it is characterized in that: also comprise transfer relay QH, the second electric current latching relay HBJ2 and ripple relay MP temporarily;
The normally opened contact of the first electric current latching relay HBJ1, closing relay HJ is all connected with positive pole control bus+KM with the first end of closing by hand console switch KK, the normally opened contact of the first electric current latching relay HBJ1, closing relay HJ, second end of closing by hand console switch KK is all connected with the first end of the coil of the first electric current latching relay HBJ1, second end of coil of the first electric current latching relay HBJ1 is connected with the first end of the normally-closed contact QH1 of transfer relay QH, second end of the normally-closed contact QH1 of transfer relay QH is connected with the first end of the coil of the second electric current latching relay HBJ2, second end of the coil of the second electric current latching relay HBJ2 assists the first end of normally closed contact DL to be connected with circuit breaker, circuit breaker assists second end of normally closed contact DL to be connected with the first end of closing coil HQ, second end of closing coil HQ is connected with negative pole control bus-KM, the first end of the normally opened contact QH2 of transfer relay QH is connected with positive pole control bus+KM, second end of the normally opened contact QH2 of transfer relay QH is connected with the first end of temporary ripple relay MP, temporary second end of ripple relay MP is connected with second end of the normally-closed contact QH1 of transfer relay QH, the output of microprocessor and closing relay HJ, the normally opened contact of the second electric current latching relay HBJ2, transfer relay QH is all connected with temporary ripple relay MP.
2. a kind of control circuit realizing the many strokes of circuit breaker according to claim 1, is characterized in that: described microprocessor adopts universal cpu, DSP or single-chip microcomputer.
3. a kind of control circuit realizing the many strokes of circuit breaker according to claim 1, it is characterized in that: also comprise display module, the input of described display module is connected with the output of microprocessor.
4. a kind of control circuit realizing the many strokes of circuit breaker according to claim 1, is characterized in that: also comprise sound and light alarm module, and the described input of sound and light alarm module is connected with the output of microprocessor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520831576.2U CN205050794U (en) | 2015-10-26 | 2015-10-26 | Realize control circuit of many strokes of circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520831576.2U CN205050794U (en) | 2015-10-26 | 2015-10-26 | Realize control circuit of many strokes of circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205050794U true CN205050794U (en) | 2016-02-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520831576.2U Withdrawn - After Issue CN205050794U (en) | 2015-10-26 | 2015-10-26 | Realize control circuit of many strokes of circuit breaker |
Country Status (1)
| Country | Link |
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| CN (1) | CN205050794U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105261530A (en) * | 2015-10-26 | 2016-01-20 | 国网河南灵宝市供电公司 | Multi-stroke realizing circuit and multi-stroke control method for circuit breakers |
-
2015
- 2015-10-26 CN CN201520831576.2U patent/CN205050794U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105261530A (en) * | 2015-10-26 | 2016-01-20 | 国网河南灵宝市供电公司 | Multi-stroke realizing circuit and multi-stroke control method for circuit breakers |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170512 Address after: Wulong road 472500 Sanmenxia City, Henan province Lingbao City Patentee after: State Grid Electric Power Company of Henan province Lingbao City Power Supply Company Address before: Wulong road 472500 Sanmenxia City, Henan province Lingbao City Patentee before: STATE GRID HENAN LINGBAO POWER SUPPLY COMPANY |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160224 Effective date of abandoning: 20171121 |