CN105305620A - Disconnection monitoring system of breaker closing control circuit - Google Patents
Disconnection monitoring system of breaker closing control circuit Download PDFInfo
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- CN105305620A CN105305620A CN201510689848.4A CN201510689848A CN105305620A CN 105305620 A CN105305620 A CN 105305620A CN 201510689848 A CN201510689848 A CN 201510689848A CN 105305620 A CN105305620 A CN 105305620A
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 43
- 238000004146 energy storage Methods 0.000 claims abstract description 35
- 230000009191 jumping Effects 0.000 claims description 27
- 238000004891 communication Methods 0.000 claims description 19
- 238000005259 measurement Methods 0.000 abstract 5
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Abstract
The invention discloses a disconnection monitoring system of a breaker closing control circuit. The system comprises a DC power supply, a microcomputer protection, measurement and control device, a work position auxiliary contact of a handcart type breaker, an auxiliary contact of a breaker, an energy-storage auxiliary contact of a spring and a closing coil, and whether the closing loop is well can be known timely according to ON/OFF of a tripping monitoring green lamp of the protection, measurement and control device. The auxiliary contacts are used to control the loop, and ON/OFF information that the handcart type breaker is not in the work position, the breaker is in the opening position and the spring does not store energy is transmitted to the microcomputer protection, measurement and control device. When one or multiple external closing conditions of the breaker closing control loop are not satisfied, the DC power supply connects corresponding auxiliary contacts to the microcomputer protection, measurement and control device, and a person on duty can check fault alarm information from the microcomputer protection, measurement and control device. Thus, the fault reason of the closing control loop can be obtained in real time, effective measures are timely adopted, and it is ensured that the breaker is closed rapidly.
Description
Technical field
The present invention relates to breaker control circuit technical field, particularly relate to a kind of breaker closing control loop template surveillance.
Background technology
In transformer station, circuit breaker is the important component part of electric power system, breaker closing control loop whether intact, and directly can impact operation and guarded command correctly perform, and can be related to electric power system safe and stable operation.When breaker closing control loop breaks down a little, circuit breaker will be caused normally not close a floodgate, now need the prompting according to warning system in monitoring circuit, and find out fault point and repair, and make circuit breaker realize normal combined floodgate smoothly, ensure power supply reliability.
The method of conventional supervision breaker closing control loop integrality mainly adopts green light monitoring circuit directly to monitor and adopts the indirect monitor of jumping, co-bit relay normally closed contact tandem promoter central signal.Green light monitoring circuit mainly through monitoring green light on and off, judge operating power and closing circuit whether complete; Jump, the indirect monitor loop of co-bit relay normally closed contact tandem promoter central signal be then by jumping, the normally closed auxiliary contact of co-bit relay monitors divide-shut brake control loop, when shutting-brake control loop is abnormal, jumping, the power-off simultaneously of co-bit relay, normally closed contact conducting assisted by jumping, the co-bit relay of series connection, and central signal screen sends the signal of " control loop template ".
But, above-mentioned breaker control circuit disconnection monitoring method, for shutting-brake control loop, only can monitor whole shutting-brake control loop fault, clearly can not provide the concrete fault element in closing circuit, and monitoring method is backward, reliability is poor, and then cause overhaul efficiency lower.
Summary of the invention
A kind of breaker closing control loop template surveillance is provided in the embodiment of the present invention, to realize effective monitoring of breaker closing control loop template fault message, warning, thus looking up the fault reason quickly, handling failure, realizes quick power transmission of closing a floodgate smoothly, ensures the reliability and stability of powered operation.
In order to solve the problems of the technologies described above, the embodiment of the invention discloses following technical scheme:
A kind of breaker closing control loop template surveillance; comprise DC power supply, microcomputer protecting controller, the handcart service position normal opened contact of circuit breaker, the first auxiliary normally closed contact of circuit breaker, spring energy-storage normal opened contact, closing coil, the handcart work location aided rebroadcast normally closed contact corresponding with described handcart service position normal opened contact, with the described first auxiliary normally closed contact corresponding second assist normally closed contact and the spring energy-storage corresponding with described spring energy-storage normal opened contact to assist normally closed contact, wherein:
One tunnel of described DC power anode connects the jumping position supervision green light of described microcomputer protecting controller, described jumping position monitors that green light connects the jumping position relay coil of described microcomputer protecting controller, described jumping position relay coil connects described handcart service position normal opened contact, described handcart service position normal opened contact connects the described first auxiliary normally closed contact, described first auxiliary normally closed contact connects described spring energy-storage normal opened contact, described spring energy-storage normal opened contact connects described closing coil, and described closing coil finally connects the negative pole of described DC power supply;
Another road of described DC power anode connects one end of described handcart work location aided rebroadcast normally closed contact, the other end of described handcart work location aided rebroadcast normally closed contact connects described microcomputer protecting controller first binding post, and described first binding post finally connects the negative power line binding post of described microcomputer protecting controller;
One end of described second auxiliary normally closed contact is connected in parallel with described handcart work location aided rebroadcast normally closed contact, the other end is connected described microcomputer protecting controller second binding post, and described second binding post finally connects the negative power line binding post of described microcomputer protecting controller;
Described spring energy-storage assists that one end of normally closed contact and the described second auxiliary normally closed contact are connected in parallel, the other end is connected with the 3rd binding post of described microcomputer protecting controller, and described 3rd binding post is finally connected with the negative power line binding post of described microcomputer protecting controller.
The positive pole that the negative power line binding post of described microcomputer protecting controller connects the negative pole of described DC power supply, positive power line binding post connects described DC power supply.
Preferably, described breaker closing control loop template surveillance also comprises control loop template alarm circuit, wherein:
Described control loop template alarm circuit comprises jumps position relay normally closed contact and co-bit relay normally closed contact;
4th binding post of described microcomputer protecting controller and described spring energy-storage assist normally closed contact to be connected in parallel, and are connected in parallel with the positive power line binding post of described microcomputer protecting controller;
One end of described jumping position relay normally closed contact is connected with described 4th binding post, and the other end is connected with one end of described co-bit relay normally closed contact;
The other end of described co-bit relay normally closed contact is connected with the 5th binding post of described microcomputer protecting controller;
Described 5th binding post is finally connected with the negative power line binding post of described microcomputer protecting controller.
Preferably, described breaker closing control loop template surveillance also comprises:
Be connected with described microcomputer protecting controller, the switching value exported for receiving described microcomputer protecting controller is opened into signal, and carries out the background monitoring machine of corresponding warning and text importing.
Preferably, be provided with between described microcomputer protecting controller and described background monitoring machine for carrying out the communication manager aggregated to the received signal.
Preferably, described communication manager is connected by connection with described microcomputer protecting controller and described background monitoring machine respectively.
Preferably, the communication interface of described microcomputer protecting controller is connected with described communication manager, opens into signal to described communication manager for output switch amount.
Preferably, the supply power voltage of described DC power supply is 220V.
From above technical scheme, a kind of breaker closing control loop template surveillance that the embodiment of the present invention provides, comprise DC power supply, microcomputer protecting controller, the handcart service position normal opened contact of circuit breaker, first auxiliary normally closed contact of circuit breaker, spring energy-storage normal opened contact and closing coil, and the handcart work location aided rebroadcast normally closed contact corresponding with described handcart service position normal opened contact, the second auxiliary normally closed contact corresponding with the described first auxiliary normally closed contact, the spring energy-storage corresponding with described spring energy-storage normal opened contact assists normally closed contact, and by said elements composition shutting-brake control circuit breaking monitoring circuit, and handcart service position normal opened contact, first auxiliary normally closed contact and spring energy-storage normal opened contact three contact misoperation warning monitoring circuits.
When the outside combined floodgate condition of breaker closing control loop; as in the first auxiliary normally closed contact of handcart service position contact, circuit breaker or spring energy-storage normal opened contact; a certain or certain several outside combined floodgate condition does not possess time; jumping position on described microcomputer protecting controller monitors that green light HG does not work; described DC power supply will connect its corresponding other auxiliary contact respectively simultaneously; be switched to microcomputer protecting controller, operator just can check fault alarm information from microcomputer protecting controller.Therefore, the monitor signal that microcomputer protecting controller exports can be learned in real time, to combined floodgate control loop failure cause, judge, thus adopt an effective measure in time, guarantee that breaker closing is quick, efficient, ensure that the safe and reliable operation of circuit breaker.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, for those of ordinary skills, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
The structural representation of a kind of breaker closing control loop template surveillance that Fig. 1 provides for the embodiment of the present invention;
The structural representation of the another kind of breaker closing control loop template surveillance that Fig. 2 provides for the embodiment of the present invention.
Embodiment
Technical scheme in the present invention is understood better in order to make those skilled in the art person, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, should belong to the scope of protection of the invention.
The invention provides a kind of breaker closing control loop template surveillance, to realize effective monitoring to breaker closing control loop template and outside combined floodgate condition fault information, warning.
See Fig. 1, be the structural representation of a kind of breaker closing control loop template surveillance that the embodiment of the present invention provides, mainly comprise breaker closing control loop template monitoring circuit and closing operation control loop.
Described breaker closing control loop template monitoring circuit comprises DC power supply KM, microcomputer protecting controller 11, the handcart service position normal opened contact S9 of circuit breaker, first auxiliary normally closed contact QF1 of circuit breaker, spring energy-storage normal opened contact S1, closing coil HQ, the handcart work location aided rebroadcast normally closed contact S91 corresponding with described handcart service position normal opened contact, the second auxiliary normally closed contact QF11 corresponding with the described first auxiliary normally closed contact QF1, and the spring energy-storage corresponding with described spring energy-storage normal opened contact S1 assists normally closed contact S11.
Wherein, the positive pole of described DC power supply KM is by the little air switch positive terminal 101 of voltage, wherein a road connects the jumping position supervision green light HG of described microcomputer protecting controller 11, described jumping position monitors that green light HG connects the jumping position relay coil TWJ of described microcomputer protecting controller 11, described jumping position relay coil TWJ connects described handcart service position normal opened contact S9, described handcart service position normal opened contact S9 connects the described first auxiliary normally closed contact QF1, described first auxiliary normally closed contact QF1 connects described spring energy-storage normal opened contact S1, described spring energy-storage normal opened contact S1 connects described closing coil HQ, described closing coil HQ connects the negative pole of described DC power supply KM by voltage little air switch negative terminal 102.When shutting-brake control loop is complete, the jumping position of described microcomputer protecting controller 11 monitors that green light HG is bright, and the jumping position relay coil TWJ simultaneously obtains electric, its relay auxiliary contact action.
Another road of the positive pole of described DC power supply KM connects one end of described handcart work location aided rebroadcast normally closed contact S91; the other end S91 of described handcart work location aided rebroadcast normally closed contact connects described microcomputer protecting controller 11 first binding post 1nD5, and described first binding post 1nD5 finally connects the negative power line binding post P2 of described microcomputer protecting controller 11.
One end of described second auxiliary normally closed contact QF11 is connected in parallel with described handcart work location aided rebroadcast normally closed contact S91, microcomputer protecting controller second binding post 1nD4 described in the other end is connected, and described second binding post 1nD4 finally connects the negative power line binding post P2 of described microcomputer protecting controller 11.
Described spring energy-storage assists one end of normally closed contact S11 and described second auxiliary normally closed contact is connected in parallel QF11, the other end is connected with the 3rd binding post 1nD3 of described microcomputer protecting controller, and described 3rd binding post 1nD3 is finally connected with the negative power line binding post P2 of described microcomputer protecting controller 11.
The negative power line binding post P2 of described microcomputer protecting controller 11 connects described voltage little air switch negative terminal 102, positive power line binding post P1 connects the little air switch negative terminal 101 of described voltage.
The supply power voltage of described DC power supply KM is 220V.
By above associated contacts loop, just can by handcart type breaker not in service position, circuit breaker in the switch such as open position, spring unstored energy intake information transmission to described microcomputer protecting controller 11.
In the present embodiment, the location status of handcart type breaker is judged by mechanical contact, when circuit breaker trolley advances, by connecting mechanism's connecting plate on-board the circuit breaker, touch travel switch, make, at the different contacts status of different location triggered, to connect respective loop, thus judge that circuit breaker is in test position or in service position.When handcart type breaker is pushed into service position, handcart service position normal opened contact S9 closes, and a condition created by the combined floodgate for next step; If when handcart type breaker is not pushed into working position; then handcart service position normal opened contact S9 does not close; closing circuit is obstructed; jump position and monitor that green light HG does not work; accordingly, handcart work location aided rebroadcast normally closed contact S91 can not action, namely still keeps on-state; and warning and the text importing information of " handcart type breaker is not in service position " can be sent on described microcomputer protecting controller 11, prompting operator on duty note.
Further; when circuit breaker is at sub-gate position; if circuit breaker first assists normally closed contact QF1 loose contact or other reason to damage; also closing circuit can be made obstructed, and described jumping position monitors that green light HG does not work, accordingly; described second auxiliary normally closed contact QF11; maintain normally closed state, described microcomputer protecting controller 11 can send " circuit breaker is at sub-gate position " information, and known circuit breaker first assists normally closed contact QF1 to there is the obstructed fault of contact accordingly.
Two groups of contacts of spring energy-storage contact and above-mentioned handcart type breaker position are same reasons.When the full energy of spring storage, described spring energy-storage normal opened contact S1 closes, and described spring energy-storage assists normally closed contact S11 to disconnect, and now, microcomputer protecting controller then can not send " spring unstored energy " warning message.Otherwise; when bullet storage is less than energy; described spring energy-storage normal opened contact S1 does not close; closing circuit can be made obstructed; jump position and monitor that green light HG does not work, and described spring energy-storage assists normally closed contact S11 to be failure to actuate, and keeps on-state; namely contact maintains normally closed state, and described microcomputer protecting controller 11 will send " spring unstored energy " warning message.
When the outside combined floodgate condition of breaker closing control loop; as as described in handcart service position normal opened contact S9, as described in the first auxiliary normally closed contact QF1 and as described in a certain in spring energy-storage normal opened contact S1 or certain several combined floodgate condition does not possess time; described DC power supply KM will connect its corresponding auxiliary contact respectively; be switched to described microcomputer protecting controller 11; and send concrete fault alarm information, achieve the monitoring, alarming function of shutting-brake control circuit breaking.Therefore, the monitor signal that microcomputer protecting controller exports can be learned in real time, to combined floodgate control loop failure cause, judge, thus adopt an effective measure in time, guarantee that breaker closing is quick, efficient, ensure that the safe and reliable operation of circuit breaker.
For improving monitoring, alarming information further, the present embodiment additionally provides circuit breaker co-bit monitoring circuit and control loop template alarm circuit.See Fig. 2, it is the structural representation of the another kind of breaker closing control loop template surveillance that the embodiment of the present invention provides.
Described circuit breaker co-bit monitoring circuit comprises DC power supply KM, co-bit monitors that red light HR, co-bit relay coil HWJ, circuit breaker assist normal opened contact QF2, switching winding TQ.
The positive pole that the positive pole of described circuit breaker co-bit monitoring circuit DC power supply and circuit breaker jump position monitoring circuit DC power supply KM is connected in parallel, the positive pole of described circuit breaker co-bit monitoring circuit DC power supply connects the co-bit supervision red light HR of described microcomputer protecting controller 11, described co-bit monitors that red light HR is connected with described co-bit relay coil HWJ, described co-bit relay coil HWJ assists normal opened contact QF2 to be connected with described circuit breaker, described circuit breaker assists normal opened contact QF2 to be connected with one end of described switching winding TQ, the other end of described switching winding TQ is connected in parallel with the one end be connected with DC power cathode in described closing coil HQ, and the final negative pole connecting described DC power supply KM.
Described control loop template alarm circuit comprises jumps position relay normally closed contact TWJ1 and co-bit relay normally closed contact HWJ1; 4th binding post 1nB3 of described microcomputer protecting controller 11 and described spring energy-storage assist normally closed contact S11 to be connected in parallel, and are connected in parallel with the positive power line binding post P1 of described microcomputer protecting controller 11; One end of described jumping position relay normally closed contact TWJ1 is connected with described 4th binding post 1nB3, and the other end is connected with one end of described co-bit relay normally closed contact HWJ1; The other end of described co-bit relay normally closed contact HWJ1 is connected with described microcomputer protecting controller 11 the 5th binding post 1nB8; Described 5th binding post 1nB8 is finally connected with the negative power line binding post P2 of described microcomputer protecting controller 11.
Described microcomputer protecting controller 11 can detect the state of circuit breaker point co-bit relay automatically, open position is at circuit breaker, when a certain of breaker closing control loop or certain several outside combined floodgate condition do not possess, jump position monitoring circuit obstructed, the jumping position of described microcomputer protecting controller 11 panel monitors that green light HG does not work, described jumping position relay coil TWJ also must not be electric, and described jumping position relay normally closed contact TWJ1 resets and connects; Equally, described circuit breaker normal opened contact QF2, is disconnected co-bit monitoring circuit, and described co-bit relay HWJ coil must not be electric, and described co-bit relay normally closed contact HWJ1 resets and connects.The alarm circuit of " control loop template " has been connected in two group relay normally closed contact series connection of circuit breaker deciliter position, and shows " control loop template " on protection supervisory equipment liquid crystal panel.
Understand breaker closing control loop template concrete condition at any time for convenience of backstage personnel, on the basis of above-described embodiment, also comprise: background monitoring machine 12.
Described background monitoring machine 12 is placed in control room; be connected with described microcomputer protecting controller 11; for receive " control loop template " and handcart type breaker that described microcomputer protecting controller 11 exports not in service position, circuit breaker opens into signal in the switching value such as open position, spring unstored energy, and carries out corresponding warning and text importing.
Wherein, the alarm signal that described background monitoring machine 12 sends can be reported to the police for light, acoustic alarm or sound and light alarm.
Described background monitoring machine 12 can by " control loop template " that receive and handcart type breaker not in service position, circuit breaker opens signal in the switching value such as open position, spring unstored energy and converts corresponding word to and show on screen, for convenience of reminding backstage personnel, the captions of display can occur in a flashing manner.
For optimizing above-described embodiment further; communication manager 13 is provided with between described microcomputer protecting controller 11 and described background monitoring machine 12; the signal that the described microcomputer protecting controller 11 received exports is aggregated, and transfers to described background monitoring machine 12.
Described microcomputer protecting controller 11 is provided with CAN (ControllerAreaNetwork; Controller Area Network BUS) communication interface; as mark S3 and S4 in Fig. 2; described microcomputer protecting controller 11 is connected with described communication manager 13 by CAN communication line; meanwhile, connection is also adopted to be connected between described communication manager 13 with described background monitoring machine 12.
The breaker closing control loop template monitoring circuit that the present embodiment provides can Real-Time Monitoring shutting-brake control loop whether complete, when a certain of shutting-brake control loop or certain several outside combined floodgate condition do not possess, the jumping position of described microcomputer protecting controller 11 panel monitors that green light does not work, jump position relay coil TWJ also must not be electric simultaneously, jump position relay TWJ normally closed contact and connect " control loop template " signal circuit together with the normally closed contact of co-bit relay HWJ1, automatically the state of circuit breaker point co-bit relay can be detected after described microcomputer protecting controller 11 powers on.When control loop is normal, no matter circuit breaker is in co-bit or point position, and the normally closed point of two position relaies always has one to be disconnect.When two position contacts are simultaneously closed, described microcomputer protecting controller 11 screen liquid crystal panel shows " control loop template " warning message at once.When the outside combined floodgate condition of breaker closing control loop, as circuit breaker cart service position contact S9, first auxiliary normally closed some QF1 of circuit breaker, a certain in spring energy-storage contact S1 or certain several condition does not possess time, described DC power supply KM will connect its corresponding other one group of auxiliary contact respectively, be switched to described microcomputer protecting controller 11, described microcomputer protecting controller 11 passes through communication interface, the switching value of " control loop template " and dependent failure is opened and is delivered to communication manager 13 into information by communication netting twine, background monitoring machine 12 is wired to again through communication netting twine.Send concrete fault alarm information by background monitoring machine by the form such as acousto-optic, word, achieve the monitoring, alarming function of shutting-brake control circuit breaking.Therefore, operator, without the need to going on-the-spot tour, by background monitoring machine, can be learned the monitor signal that microcomputer protecting controller exports in real time, to combined floodgate control loop failure cause, judge.
The present embodiment is for spring energy-storage actuating type mechanism's handcart type breaker shutting-brake control loop common at present; certainly; for circuit breaker or other non-handcart type breakers of SF6 gas-insulated medium; outside combined floodgate condition in shutting-brake control loop may go here and there the sensitive switch normal opened contact of SF6 low pressure blocking relay normally closed contact, circuit breaker and isolation switch latch-up protection; or also have upper and lower isolation switch to assist normal opened contact etc., its operation principle is also substantially identical.
It should be noted that, in this article, the such as relational terms of " first " and " second " etc. and so on is only used for an entity or operation to separate with another entity or operating space, and not necessarily requires or imply the relation that there is any this reality between these entities or operation or sequentially.And, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thus make to comprise the process of a series of key element, method, article or equipment and not only comprise those key elements, but also comprise other key elements clearly do not listed, or also comprise by the intrinsic key element of this process, method, article or equipment.When not more restrictions, the key element limited by statement " comprising ... ", and be not precluded within process, method, article or the equipment comprising described key element and also there is other identical element.
The above is only the specific embodiment of the present invention, those skilled in the art is understood or realizes the present invention.To be apparent to one skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (7)
1. a breaker closing control loop template surveillance; comprise DC power supply, microcomputer protecting controller, the handcart service position normal opened contact of circuit breaker, the first auxiliary normally closed contact, spring energy-storage normal opened contact and closing coil of circuit breaker; it is characterized in that; also comprise the handcart work location aided rebroadcast normally closed contact corresponding with described handcart service position normal opened contact, the second auxiliary normally closed contact corresponding with the described first auxiliary normally closed contact and the spring energy-storage corresponding with described spring energy-storage normal opened contact and assist normally closed contact, wherein:
One tunnel of described DC power anode connects the jumping position supervision green light of described microcomputer protecting controller, described jumping position monitors that green light connects the jumping position relay coil of described microcomputer protecting controller, described jumping position relay coil connects described handcart service position normal opened contact, described handcart service position normal opened contact connects the described first auxiliary normally closed contact, described first auxiliary normally closed contact connects described spring energy-storage normal opened contact, described spring energy-storage normal opened contact connects described closing coil, and described closing coil finally connects the negative pole of described DC power supply;
Another road of described DC power anode connects one end of described handcart work location aided rebroadcast normally closed contact, the other end of described handcart work location aided rebroadcast normally closed contact connects described microcomputer protecting controller first binding post, and described first binding post finally connects the negative power line binding post of described microcomputer protecting controller;
One end of described second auxiliary normally closed contact is connected in parallel with described handcart work location aided rebroadcast normally closed contact, the other end is connected described microcomputer protecting controller second binding post, and described second binding post finally connects the negative power line binding post of described microcomputer protecting controller;
Described spring energy-storage assists that one end of normally closed contact and the described second auxiliary normally closed contact are connected in parallel, the other end is connected with the 3rd binding post of described microcomputer protecting controller, and described 3rd binding post is finally connected with the negative power line binding post of described microcomputer protecting controller;
The positive pole that the negative power line binding post of described microcomputer protecting controller connects the negative pole of described DC power supply, positive power line binding post connects described DC power supply.
2. want the breaker closing control loop template surveillance described in 1 according to right, it is characterized in that, described breaker closing control loop template surveillance also comprises control loop template alarm circuit, wherein:
Described control loop template alarm circuit comprises jumps position relay normally closed contact and co-bit relay normally closed contact;
4th binding post of described microcomputer protecting controller and described spring energy-storage are assisted normally closed contact to be connected in parallel and are connected in parallel with the positive power line binding post of described microcomputer protecting controller;
One end of described jumping position relay normally closed contact is connected with described 4th binding post, and the other end is connected with one end of described co-bit relay normally closed contact;
The other end of described co-bit relay normally closed contact is finally connected with the 5th binding post of described microcomputer protecting controller;
Described 5th binding post is connected with the negative power line binding post of described microcomputer protecting controller.
3. breaker closing control loop template surveillance according to claim 1 and 2, is characterized in that, also comprise:
Be connected with described microcomputer protecting controller, the switching value exported for receiving described microcomputer protecting controller is opened into signal, and carries out the background monitoring machine of corresponding warning and text importing.
4. breaker closing control loop template surveillance according to claim 3, is characterized in that, is provided with for carrying out the communication manager aggregated to the received signal between described microcomputer protecting controller and described background monitoring machine.
5. breaker closing control loop template surveillance according to claim 4, is characterized in that, described communication manager is connected by connection with described microcomputer protecting controller and described background monitoring machine respectively.
6. breaker closing control loop template surveillance according to claim 4; it is characterized in that; the communication interface of described microcomputer protecting controller is connected with described communication manager, opens into signal to described communication manager for output switch amount.
7. breaker closing control loop template surveillance according to claim 1, is characterized in that, the supply power voltage of described DC power supply is 220V.
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| CN110988665A (en) * | 2019-12-01 | 2020-04-10 | 国网辽宁省电力有限公司锦州供电公司 | Abnormal alarm method for closing function of spring type circuit breaker |
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| CN112431821A (en) * | 2020-11-11 | 2021-03-02 | 中国南方电网有限责任公司超高压输电公司昆明局 | Early warning device for hydraulic disc spring mechanism of high-voltage circuit breaker |
| CN113325304A (en) * | 2021-06-03 | 2021-08-31 | 国网江苏省电力有限公司常州供电分公司 | High-voltage circuit breaker detection device and detection method thereof |
| CN113471939A (en) * | 2021-06-07 | 2021-10-01 | 深圳供电局有限公司 | Interlocking loop fault monitoring and alarming method in disconnecting link control loop |
| CN113687220A (en) * | 2021-07-16 | 2021-11-23 | 国家电网有限公司技术学院分公司 | Simulation device and method for spring energy storage type vacuum circuit breaker |
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