CN203086250U - Boundary switch measuring and control device - Google Patents
Boundary switch measuring and control device Download PDFInfo
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- CN203086250U CN203086250U CN 201320129429 CN201320129429U CN203086250U CN 203086250 U CN203086250 U CN 203086250U CN 201320129429 CN201320129429 CN 201320129429 CN 201320129429 U CN201320129429 U CN 201320129429U CN 203086250 U CN203086250 U CN 203086250U
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- switch
- control
- demarcation switch
- controller
- demarcation
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Abstract
The utility model discloses a boundary switch measuring and control device which is applied to isolation of a grid fault branch. The existing boundary switch controller is single in function, only can realize alarming and manual dividing, but cannot analyze a fault type. The boundary switch measuring and control device disclosed by the utility model comprises a control center, wherein the control center is respectively connected with a controller and an alternating current electrical signal port; the controller is connected with a boundary switch, and the controller is connected with a changing switch for changing a controlling manner; and the control center is connected with a communication module to send power grid information and receive a long-range control signal. The control center receives power grid operation data so as to judge whether the power grid normally operates, the controller controls the boundary switch to isolate the fault branch, the distant place and in-place controlling modes are realized through the changing switch, workers are not needed to operate in a place under the general condition, and the communication module receives the long-range control signal to control the device to operate in a remote manner, so that the operation of the device is convenient.
Description
Technical field
The utility model relates to intelligent measuring and control device, particularly a kind of demarcation switch measure and control device that applies in the electric power system maintenance process.
Background technology
In urban power distribution network, adopt loop-network switch cabinet that regional user is powered mostly.In huge distribution network, the circuit in the electrical network is various and complicated, if certain branch road breaks down in the distribution network, whole electrical network need be cut off usually and keep in repair, and electrical network is connected later on having keeped in repair fault again.So whole distribution network user has been caused very big influence, can't guarantee normal power supply non-fault branch user.The puzzlement of having caused for user's normal life impacts industrial production, causes economic loss.Therefore, there is the technical staff to provide the demarcation switch controller that the electrical network that breaks down is isolated, can only realizes reporting to the police and manually boundary but existing boundary on-off controller function is more single, and can't the analysis of failure type.
Summary of the invention
Problem to be solved in the utility model provides a kind of demarcation switch measure and control device, when certain branch road of distribution network breaks down, can realize control automatically and manually control dual-purpose, made things convenient for operation, but also can realize judgement for fault type, guarantee that safe operation of electric network is stable and safeguard rapidly and efficiently.
In order to solve the problems of the technologies described above, the utility model adopts following technical scheme: the demarcation switch measure and control device, comprise control centre, described control centre connects controller and alternating current electric signal interface respectively, described controller connects demarcation switch, described controller connects a diverter switch that is used for the switching controls mode, and described control centre connects communication module and sends electric network information and receiving remote control signal.Control centre receives the operation of power networks data through the alternating current electric signal interface, judge whether normal operation, and by controller control demarcation switch isolated fault branch line, described diverter switch comprises a distant place and two kinds of patterns on the spot, under the situation of distribution network normal power supply, diverter switch is beaten in the distance, realize normally moving by communication module receiving remote control signal remote control; When system diagnostics is broken down and need safeguard on the spot, then diverter switch is beaten and carrying out manual operation by the attendant on the spot, guarantee the normal power supply of residue distribution network, made things convenient for the device operation, under general situation, need not personnel's local operation.
As preferably, described alternating current electric signal interface connects current detection circuit, voltage detecting circuit and zero sequence testing circuit respectively.
As preferably, described controller comprises a control switch and demarcation switch motor, and described control centre connects control switch, and described control switch is controlled described demarcation switch motor steering.Control centre's sending controling instruction is given control switch, the action of control switch control trigger switch, thus driving motor action, motor powered is done corresponding action in the demarcation switch of its connection, finishes the corresponding actions indication.
As preferably, described control switch comprises two electromagnetic relays, and the auxiliary contact of described two electromagnetic relays is connected in the described demarcation switch motor positive and inverse circuit loop.Can realize the control of demarcation switch motor by the auxiliary contact of electromagnetic relay, thereby realize the control of demarcation switch, need not add other trigger switch.
As preferably, described demarcation switch is on-load switch or circuit breaker.On-load switch switch and circuit breaker are two main types of demarcation switch, can use in the utility model.
As preferably, described communication module is provided with communication interface, and described communication module interface comprises GPRS interface and GMS interface.Real needs according to communication realize communication, realize being subjected to the real-time communication of alert machine information, can realize the note indicating mode by the GMS communication, are convenient to the reception at any time and the processing of information.The processing of data is convenient to the diagnosis control and the action of system by a large amount of and quick communication that GPRS can realize data.
As preferably, described overcurrent sensing circuit comprises the three-phase and four-line ac current source, and four ports of described three-phase and four-line ac current source connect described control centre.By setting the overcurrent definite value, with described three-phase alternating current and described setting overcurrent definite value relatively, when described three-phase alternating current cuts off the alternating current streamline automatically greater than setting overcurrent value, protection equipment, the equipment of preventing burns out.
As preferably, described voltage detecting circuit comprises the three-phase and four-line alternating-current voltage source, and four ports of described three-phase and four-line alternating-current voltage source connect described control centre.
As preferably, described zero sequence testing circuit comprises the neutral line, and neutral line port connects described control centre.By the single-phase earthing electric parameters of moment, identification is in the district or external area error detects.Be convenient to dwindle detection range, accelerate diagnosis and inspection speed.
After adopting technique scheme, the utlity model has following advantage: make the utility model comprise a distant place and two kinds of control models on the spot by diverter switch, under the situation of distribution network normal power supply, diverter switch is beaten in the distance, realize normally moving by communication module receiving remote control signal remote control, when system diagnostics is broken down and need safeguard on the spot, then diverter switch is beaten and carrying out manual operation by the attendant on the spot, guarantee the normal power supply of residue distribution network, under general situation, need not personnel's local operation, saved manpower; By current detection circuit, voltage detecting circuit and zero sequence testing circuit the operation of power networks data are sent to control centre, control centre's failure judgement type is convenient to safeguard to guarantee safe operation of electric network stable.
Description of drawings
Below in conjunction with accompanying drawing embodiment of the present utility model is described further:
Fig. 1 is a structured flowchart of the present utility model;
Fig. 2 is the utility model and testing circuit winding diagram;
Fig. 3 is a zero sequence testing circuit fundamental diagram in the utility model;
Fig. 4 is the utility model electrical wiring schematic diagram.
Embodiment
As shown in Figure 1, the demarcation switch measure and control device comprises control centre, described control centre connects controller, connect communication module and send electric network information and receiving remote control signal, described communication module is provided with communication interface, and described communication module interface comprises GPRS interface and GMS interface.Real needs according to communication realize communication, realize being subjected to the real-time communication of alert machine information, can realize the note indicating mode by the GMS communication, are convenient to the reception at any time and the processing of information.The processing of data is convenient to the diagnosis control and the action of system by a large amount of and quick communication that GPRS can realize data.Described controller connects demarcation switch, and demarcation switch can be on-load switch or circuit breaker, and on-load switch or circuit breaker can be used in this example as two major types of demarcation switch.Described control centre is connected to electrical network and accepts the operation of power networks data by the alternating current electric signal interface, to electrical network whether fault and fault type as judging and data upload being convenient to attendant's operation by communication module, described controller is circumscribed with one and switches switch, described diverter switch comprise a distant place and on the spot two kinds of patterns under the situation of distribution network normal power supply, diverter switch is beaten in the distance, realize normally moving by communication module receiving remote control signal remote control; When system diagnostics is broken down and need safeguard on the spot, then diverter switch is beaten and carrying out manual operation by the attendant on the spot, guarantee the normal power supply of residue distribution network, made things convenient for the device operation, under general situation, need not personnel's local operation.
As shown in Figure 2, the operation of power networks data are sent to control centre 1 by connecting current detection circuit, voltage detecting circuit and zero sequence testing circuit, overcurrent sensing circuit at the above comprises the three-phase and four-line ac current source, and four ports of described three-phase and four-line ac current source connect described control centre 1.By setting the overcurrent definite value, with described three-phase alternating current and described setting overcurrent definite value relatively, when described three-phase alternating current greater than setting overcurrent value automatic shutdown circuit then, protection equipment, the equipment of preventing burns out.Described voltage detecting circuit structure, principle and effect are similar to described current detection circuit, do not repeat them here.
Referring to Fig. 2-3, described zero sequence testing circuit comprises the neutral line, and neutral line port connects described control centre 1.Control centre 1 connects described demarcation switch.When single phase ground fault (mains side) out-of-bounds took place the user, the zero-sequence current that detects of boundary controller was very little, and when in user circle single phase ground fault taking place (load side), the zero-sequence current that the boundary controller detects is very big.According to this principle, by detecting the zero-sequence current circuital current, and differentiate relatively with the zero sequence definite value whether single phase ground fault takes place in the boundary.If electric current is greater than definite value, and when not satisfying over current fault (big electric current) condition, be judged to earth fault in the boundary.Judge to be in the district or external area error detects by the electric parameters of single-phase earthing moment.Be convenient to dwindle detection range, accelerate diagnosis and inspection speed.
As shown in Figure 4, be the electrical wiring schematic diagram of the utility model embodiment.Described controller comprises a control switch 3 and demarcation switch motor 2, described control centre connects control switch 3, described control switch comprises two electromagnetic relays, the auxiliary contact 4 of described two electromagnetic relays is connected in the described demarcation switch motor positive and inverse circuit loop, described control switch control described demarcation switch motor positive and inverse to so that control demarcation switch the folding direction.
AC power ACL is connected an air switch QF with ACN, insert among the bridge rectifier G1, described bridge rectifier G1 connects an auxiliary contact 4, described auxiliary contact 4 triggers 2 actions of demarcation switch motor, described demarcation switch motor 2 external demarcation switch are also controlled the demarcation switch action, finish corresponding actions.At first control centre handles the distribution network electric network data when breaking down by communication module, data processing is done by control centre, and the instruction that judges sends to control switch 3, electromagnetic relay in the control switch 3 drives the rotating direction that demarcation switch motor 2 is controlled in auxiliary contact 4 actions simultaneously, and then make demarcation switch make corresponding reaction, realize automatic diagnosis, QA process.When fault need solve on the spot, then there is control centre to send the signalisation attendant, the attendant pushes on the spot the position with diverter switch can carry out local operation.
Except that above preferred embodiment, the utility model also has other execution mode, those skilled in the art can make various changes and distortion according to the utility model, only otherwise break away from spirit of the present utility model, all should belong to the defined scope of the utility model claims.
Claims (9)
1. demarcation switch measure and control device, comprise control centre, described control centre connects controller and alternating current electric signal interface respectively, described controller connects demarcation switch, it is characterized in that: described controller connects a diverter switch that is used for the switching controls mode, and described control centre connects communication module and sends electric network information and receiving remote control signal.
2. demarcation switch measure and control device according to claim 1 is characterized in that: described alternating current electric signal interface connects current detection circuit, voltage detecting circuit and zero sequence testing circuit respectively.
3. demarcation switch measure and control device according to claim 2, it is characterized in that: described controller comprises a control switch and demarcation switch motor, described control centre connects control switch, and described control switch is controlled described demarcation switch motor steering.
4. demarcation switch measure and control device according to claim 3 is characterized in that: described control switch comprises two electromagnetic relays, and the auxiliary contact of described two electromagnetic relays is connected in the described demarcation switch motor positive and inverse circuit loop.
5. according to claim 3 or 4 described demarcation switch measure and control devices, it is characterized in that: described demarcation switch is on-load switch or circuit breaker.
6. demarcation switch measure and control device according to claim 5 is characterized in that: described communication module is provided with communication interface, and described communication module interface comprises GPRS interface and GMS interface.
7. according to claim 3 or 6 described demarcation switch measure and control devices, it is characterized in that: described overcurrent sensing circuit comprises the three-phase and four-line ac current source, and four ports of described three-phase and four-line ac current source connect described control centre.
8. according to claim 3 or 6 described demarcation switch measure and control devices, it is characterized in that: described voltage detecting circuit comprises the three-phase and four-line alternating-current voltage source, and four ports of described three-phase and four-line alternating-current voltage source connect described control centre.
9. according to claim 3 or 6 described demarcation switch measure and control devices, it is characterized in that: described zero sequence testing circuit comprises the neutral line, and neutral line port connects described control centre.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320129429 CN203086250U (en) | 2013-03-20 | 2013-03-20 | Boundary switch measuring and control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320129429 CN203086250U (en) | 2013-03-20 | 2013-03-20 | Boundary switch measuring and control device |
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| CN203086250U true CN203086250U (en) | 2013-07-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320129429 Expired - Lifetime CN203086250U (en) | 2013-03-20 | 2013-03-20 | Boundary switch measuring and control device |
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| CN (1) | CN203086250U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105911396A (en) * | 2016-05-26 | 2016-08-31 | 国网山东省电力公司临朐县供电公司 | Boundary switch simulation test diagnosis device |
| CN106383457A (en) * | 2016-08-25 | 2017-02-08 | 北京国兴凯顺科技股份有限公司 | Boundary switch controller capable of monitoring state of circuit branch |
-
2013
- 2013-03-20 CN CN 201320129429 patent/CN203086250U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105911396A (en) * | 2016-05-26 | 2016-08-31 | 国网山东省电力公司临朐县供电公司 | Boundary switch simulation test diagnosis device |
| CN105911396B (en) * | 2016-05-26 | 2019-04-09 | 国网山东省电力公司临朐县供电公司 | Demarcation switch simulation test diagnostic device |
| CN106383457A (en) * | 2016-08-25 | 2017-02-08 | 北京国兴凯顺科技股份有限公司 | Boundary switch controller capable of monitoring state of circuit branch |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130724 |
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| CX01 | Expiry of patent term |