CN211579706U - System for long-range throw moves back reclosing - Google Patents
System for long-range throw moves back reclosing Download PDFInfo
- Publication number
- CN211579706U CN211579706U CN202020484917.4U CN202020484917U CN211579706U CN 211579706 U CN211579706 U CN 211579706U CN 202020484917 U CN202020484917 U CN 202020484917U CN 211579706 U CN211579706 U CN 211579706U
- Authority
- CN
- China
- Prior art keywords
- node
- measurement
- control
- normally
- yqj
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The utility model provides a long-range system of switching on and off reclosing lock, including remote scheduling end, measurement and control device, remote control circuit, protection device, be used for controlling the protection device reclosing lock's control circuit and be used for showing the signal circuit of reclosing lock state, measurement and control device and remote scheduling end communication connection receive the reclosing lock instruction that remote scheduling end sent, measurement and control device connects remote control circuit's input and signal circuit's input respectively, protection device is connected with control circuit's input, is equipped with two position relay on the remote control circuit, and remote control circuit passes through two position relay control signal circuit and control circuit's break-make. The utility model provides the high work efficiency of staff and the automation level of electric wire netting have further promoted the process of regulation and control integration.
Description
Technical Field
The utility model relates to a reclosing lock throws the technical field who moves back, more specifically relates to a long-range system of throwing moving back reclosing lock.
Background
The 10kV distribution network line has high tripping rate, but 80% -90% of lines trip to be instantaneous faults, and after the lines trip, a regulation and control person needs to forcibly try to send the lines, and the lines can be successfully tried to send under normal conditions, but the power failure time of the lines and the operation amount of the person are increased by the trying to send operation. In order to ensure the reliability of power supply and reduce the operation of personnel, the power grid generally adopts a 10kV distribution line configuration reclosing mode.
When the line has special operations such as live working, the reclosing function needs to be quitted. At present, the protection of partial new-built transformer substation or transformer substation 10kV circuit through technical transformation can realize the function of long-range switching-on and switching-off reclosing through synthesizing automatic system at the dispatch end, and the switching-on and switching-off of most old 10kV circuit reclosing function of transformer substation can only be driven to the scene by operation and maintenance personnel, realize through the clamp plate of switching-on and switching-off protection device, to unmanned on duty transformer substation, for switching-on and switching-off a clamp plate, operation and maintenance personnel need make a round trip to rush twice, cause the increase of personnel's work load, the work efficiency has also been reduced.
With the advance of the work of the Guangdong power grid regulation and control integration, whether the remote switching-on/off reclosing function of a dispatching end can be realized is an important index of the regulation and control integration, and taking the Zhanjiang power supply office as an example, more than 100 transformer substations of 35kV and above in the Zhanjiang power supply office are available at present, and only 10kV lines of less than half of the transformer substations have the remote switching-on/off reclosing function, and most of the rest of the 10kV lines do not reach the technical transformation years and cannot realize the function through technical transformation in a short time.
Based on the current situation, it is necessary to provide a system capable of realizing 10kV line remote switching reclosure.
SUMMERY OF THE UTILITY MODEL
The switching-on and switching-off of the existing old 10kV line reclosing lock can only be realized by the pressing plate of the on-site manual switching-on and switching-off protection device of the operation and maintenance personnel, has the defects of time waste and workload increase of the working personnel, and overcomes the defects, the utility model provides a system for remotely switching on and switching off the reclosing lock, improves the working efficiency of the working personnel and the automation level of the power grid, and further advances the process of regulation and control integration.
The utility model discloses aim at solving above-mentioned technical problem to a certain extent at least.
In order to achieve the above technical effects, the technical scheme of the utility model as follows:
the utility model provides a system of long-range throw-off reclosing, includes remote scheduling end, measurement and control device, remote control circuit, protection device, is used for controlling the control circuit of protection device reclosing and is used for showing the signal circuit of reclosing state, measurement and control device and remote scheduling end communication connection receive the reclosing instruction that remote scheduling end sent, measurement and control device connects remote control circuit's input and signal circuit's input respectively, protection device is connected with control circuit's input, is equipped with two position relay YQJ on the remote control circuit, remote control circuit passes through the break-make of two position relay YQJ control signal circuit and control circuit.
Preferably, the remote control circuit includes a first measurement and control node YH, a second measurement and control node YT and a two-position relay YQJ, a first positive terminal a of the measurement and control device is sequentially connected with c ends of the first measurement and control node YH and the two-position relay YQJ, a second positive terminal b of the measurement and control device is sequentially connected with d ends of the second measurement and control node YT and the two-position relay YQJ, and an e end of the two-position relay YQJ is connected with a first negative terminal f of the measurement and control device.
The measurement and control device receives a reclosing instruction sent by the remote scheduling end, the measurement and control device is connected with the remote control circuit through the first positive end a, the second positive end b and the first negative end f to form a closed loop, the reclosing instruction of the remote scheduling end is transmitted to the remote control circuit 1, and the control circuit and the signal circuit respond to the reclosing instruction through the connection with the remote control circuit.
Preferably, the control circuit includes clamp plate LP and the first node K1 of normally opening, and protection device's positive terminal g connects the one end of clamp plate LP and the one end of the first node K1 of normally opening respectively, and protection device's negative pole end h is all connected to the other end of clamp plate LP and the other end of the first node K1 of normally opening, and the break-make of the first node K1 of normally opening is controlled through its action state to two-position relay YQJ. The first normally-open node K1 is connected in parallel at two ends of the pressure plate LP, so that the reclosing switching function is further realized.
Preferably, the signal circuit includes a second normally-open node K2, a first normally-closed node K3, a first indicator light LD and a second indicator light HD, a third positive terminal i of the measurement and control device is connected with one end of the second normally-open node K2 and one end of the first normally-closed node K3, the other end of the second normally-open node K2, the first indicator light LD and a second negative terminal j of the measurement and control device are sequentially connected, the other end of the first normally-closed node K3, the first indicator light LD and a third negative terminal K of the measurement and control device are sequentially connected, and the double-position relay YQJ controls the on-off of the second normally-open node K2 and the first normally-closed node K3 through the action state of the double-position relay YQJ.
Preferably, when the remote dispatching end sends an input reclosing instruction, the measurement and control device receives the input reclosing instruction, the first measurement and control node YH is closed, the second measurement and control node YT is opened, the two-position relay YQJ acts, the two-position relay YQJ controls the first normally-open node K1 of the control circuit to be closed, the second normally-open node K2 of the control signal circuit to be closed, and the first normally-closed node K3 of the control signal circuit to be opened.
Preferably, when the remote dispatching end sends an exit reclosing instruction, the measurement and control device receives the exit reclosing instruction, the first measurement and control node YH is opened, the second measurement and control node YT is closed, the two-position relay YQJ resets, the two-position relay YQJ controls the first normally-opened node K1 of the control circuit to be opened, the second normally-opened node K2 of the control signal circuit to be opened, and the first normally-closed node K3 of the control signal circuit to be closed.
Preferably, the platen LP is one of a hard platen, a latched platen, or a deactivated platen.
Preferably, when the first normally-open node K1 is disconnected, the pressure plate LP is closed, the protection device is switched on again, when the remote dispatching end fails, the switching on again can be realized on the spot by the pressure plate LP, and if the remote dispatching end exits, the worker can exit the switch on again by switching off the pressure plate LP on the spot.
Preferably, when the second normally-open node K2 of the signal circuit is closed and the first normally-closed node K3 is opened, the first indicator light LD is turned off, and the second indicator light HD is turned on, which indicates that the remote reclosing switch is successfully put into operation.
Preferably, when the second normally open node K2 of the signal circuit is opened and the first normally closed node K3 is closed, the first indicator light LD is turned on, and the second indicator light HD is turned off, which indicates that the remote reclosing exit is successful.
Compared with the prior art, the utility model discloses technical scheme's beneficial effect is:
the utility model provides a long-range system of switching on and off reclosing lock, receive the reclosing lock instruction that long-range dispatch end sent through measurement and control device, measurement and control device conveys the reclosing lock instruction to remote control circuit, utilizes the two position relay YQJ that is equipped with on the remote control circuit, further controls the break-make of signal circuit and control circuit to the switching on and off of control reclosing lock, and signal circuit further reflects the state of long-range switching on and off reclosing lock again; in addition, the outage self-holding function of the double-position relay can prevent the influence of accidental outage of the remote control circuit on the switching-on and switching-off of the reclosure, the effectiveness of a remote switching-on and switching-off reclosure system is guaranteed, the time of workers is saved, the working efficiency and the automation level of a power grid are improved, and the process of regulation and control integration is further promoted.
Drawings
Fig. 1 is the system structure diagram of the remote reclosing lock of the utility model.
Detailed Description
The drawings are for illustrative purposes only and are not to be construed as limiting the patent;
the technical solution of the present invention will be further explained with reference to the accompanying drawings and examples.
Example 1
As shown in fig. 1 the utility model provides a long-range system structure picture of switching on and off reclosing, see fig. 1, the system includes the remote scheduling end, measurement and control device, remote control circuit 1, protection device, a signal circuit 3 that is used for controlling the control circuit 2 of protection device reclosing and is used for showing the reclosing state, measurement and control device and remote scheduling end communication connection, receive the reclosing instruction that the remote scheduling end sent, measurement and control device connects remote control circuit 1's input and signal circuit 3's input respectively, protection device is connected with control circuit 2's input, the last double position relay YQJ that is equipped with of remote control circuit 1, remote control circuit 1 is through double position relay YQJ control signal circuit 3 and control circuit 2's break-make.
In this embodiment, referring to fig. 1, the remote control circuit 1 includes a first measurement and control node YH, a second measurement and control node YT and a two-position relay YQJ, a first positive terminal a of the measurement and control device is sequentially connected to the first measurement and control node YH and a c-terminal of the two-position relay YQJ, a second positive terminal b of the measurement and control device is sequentially connected to the second measurement and control node YT and a d-terminal of the two-position relay YQJ, and an e-terminal of the two-position relay YQJ is connected to a first negative terminal f of the measurement and control device. The measurement and control device receives a reclosing instruction sent by the remote scheduling end, because the measurement and control device is connected with the remote control circuit 1 through the first positive terminal a, the second positive terminal b and the first negative terminal f to form a closed loop, the reclosing instruction of the remote scheduling end is transmitted to the remote control circuit 1, and the control circuit 2 and the signal circuit 3 respond to the reclosing instruction through the connection with the remote control circuit 1.
In this embodiment, the control circuit 2 includes the clamp plate LP and the first node K1 that normally opens, and protection device's positive terminal g connects the one end of clamp plate LP and the one end of the first node K1 that normally opens respectively, and protection device's negative pole end h is all connected to the other end of clamp plate LP and the other end of the first node K1 that normally opens, and the break-make of the first node K1 that normally opens is controlled through its action state to two position relay YQJ. The first normally-open node K1 is connected in parallel at two ends of the pressure plate LP, so that the reclosing switching function is further realized.
The signal circuit 3 comprises a second normally-open node K2, a first normally-closed node K3, a first indicator lamp LD and a second indicator lamp HD, the third positive end i of the measurement and control device is connected with one end of the second normally-open node K2 and one end of the first normally-closed node K3, the other end of the second normally-open node K2, the second negative end j of the first indicator lamp LD and the measurement and control device are sequentially connected, the other end of the first normally-closed node K3, the third negative end K of the first indicator lamp LD and the measurement and control device are sequentially connected, and the double-position relay YQJ controls the on-off of the second normally-open node K2 and the first normally-closed node K3 through the action state of the double-position relay YQJ.
When the remote dispatching end sends an input reclosing instruction, the measurement and control device receives the input reclosing instruction, the first measurement and control node YH is closed, the second measurement and control node YT is opened, the double-position relay YQJ acts, the double-position relay YQJ controls the first normally-open node K1 of the control circuit to be closed, the second normally-open node K2 of the control signal circuit is closed, and the first normally-closed node K3 of the control signal circuit is opened.
When the remote dispatching end sends an exit reclosing instruction, the measurement and control device receives the exit reclosing instruction, the first measurement and control node YH is disconnected, the second measurement and control node YT is closed, the double-position relay YQJ resets, the double-position relay YQJ controls the first normally-open node K1 of the control circuit to be disconnected, the second normally-open node K2 of the control signal circuit is disconnected, and the first normally-closed node K3 of the control signal circuit is closed. When concrete implementation, clamp plate LP is one of hard clamp plate, shutting clamp plate or the stop use clamp plate, and in this embodiment, hard clamp plate is chooseed for use to clamp plate LP, when first normally open node K1 disconnection, closes clamp plate LP, and protection device reclosing puts into, appears the trouble when the remote dispatch end, still accessible clamp plate LP realizes the input of reclosing on the spot, if the remote dispatch end withdraws from, the staff can withdraw from reclosing through disconnection clamp plate LP on the spot.
When the second normally-open node K2 of the signal circuit 3 is closed and the first normally-closed node K3 is disconnected, the first indicator light LD is turned off, and the second indicator light HD is turned on to indicate that the remote reclosing switch is successfully put into operation; when the second normally-open node K2 of the signal circuit is disconnected and the first normally-closed node K3 is closed, the first indicator lamp LD is turned on, and the second indicator lamp HD is turned off, so that the remote reclosing quit is successful.
The positional relationships depicted in the drawings are for illustrative purposes only and are not to be construed as limiting the present patent;
it is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not limitations to the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. The utility model provides a system of long-range throw-return reclosing, its characterized in that, includes remote scheduling end, measurement and control device, remote control circuit, protection device, is used for controlling the protection device reclosing's control circuit and is used for showing the signal circuit of reclosing state, measurement and control device and remote scheduling end communication connection receive the reclosing instruction that remote scheduling end sent, measurement and control device connects remote control circuit's input and signal circuit's input respectively, protection device is connected with control circuit's input, is equipped with two position relay YQJ on the remote control circuit, remote control circuit passes through two position relay YQJ control signal circuit and control circuit's break-make.
2. The system according to claim 1, wherein the remote control circuit comprises a first measurement and control node YH, a second measurement and control node YT, and a two-position relay YQJ, a first positive terminal a of the measurement and control device is sequentially connected to the first measurement and control node YH and a c-terminal of the two-position relay YQJ, a second positive terminal b of the measurement and control device is sequentially connected to the second measurement and control node YT and a d-terminal of the two-position relay YQJ, and an e-terminal of the two-position relay YQJ is connected to a first negative terminal f of the measurement and control device.
3. The system according to claim 2, wherein the control circuit comprises a pressure plate LP and a first normally-open node K1, a positive terminal g of the protection device is connected to one end of the pressure plate LP and one end of the first normally-open node K1 respectively, the other end of the pressure plate LP and the other end of the first normally-open node K1 are both connected to a negative terminal h of the protection device, and the double-position relay YQJ controls the on-off state of the first normally-open node K1 through the action state of the double-position relay YQJ.
4. The remote switching reclosing system according to claim 3, wherein the signal circuit comprises a second normally open node K2, a first normally closed node K3, a first indicator lamp LD and a second indicator lamp HD, a third positive terminal i of the measurement and control device is connected with one end of the second normally open node K2 and one end of the first normally closed node K3, the other end of the second normally open node K2, the first indicator lamp LD and a second negative terminal j of the measurement and control device are sequentially connected, the other end of the first normally closed node K3, the first indicator lamp LD and a third negative terminal K of the measurement and control device are sequentially connected, and the double-position relay YQJ controls the on-off of the second normally open node K2 and the first normally closed node K3 through the action state of the double-position relay YQJ.
5. The system according to claim 4, wherein when the remote dispatching end issues the throw reclosing command, the measurement and control device receives the throw reclosing command, the first measurement and control node YH is closed, the second measurement and control node YT is opened, the two-position relay YQJ acts, the two-position relay YQJ controls the first normally open node K1 of the control circuit to be closed, the second normally open node K2 of the control signal circuit to be closed, and the first normally closed node K3 of the control signal circuit to be opened.
6. The system according to claim 5, wherein when the remote scheduling end issues the command to quit reclosing, the measurement and control device receives the command to quit reclosing, the first measurement and control node YH is opened, the second measurement and control node YT is closed, the two-position relay YQJ is reset, the two-position relay YQJ controls the first normally open node K1 of the control circuit to be opened, the second normally open node K2 of the control signal circuit to be opened, and the first normally closed node K3 of the control signal circuit to be closed.
7. The system of claim 6, wherein the pressure plate LP is one of a hard pressure plate, a blocking pressure plate, or a disabling pressure plate.
8. The system according to claim 7, wherein when the first normally open node K1 is opened, the pressing plate LP is closed and the protection device recloses.
9. The system of claim 8, wherein when the second normally open node K2 of the signal circuit is closed and the first normally closed node K3 is open, the first indicator light LD is off and the second indicator light HD is on.
10. The system of claim 9, wherein when the second normally open node K2 of the signal circuit is open and the first normally closed node K3 is closed, the first indicator light LD is on and the second indicator light HD is off.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020484917.4U CN211579706U (en) | 2020-04-03 | 2020-04-03 | System for long-range throw moves back reclosing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020484917.4U CN211579706U (en) | 2020-04-03 | 2020-04-03 | System for long-range throw moves back reclosing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211579706U true CN211579706U (en) | 2020-09-25 |
Family
ID=72527222
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020484917.4U Active CN211579706U (en) | 2020-04-03 | 2020-04-03 | System for long-range throw moves back reclosing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211579706U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114024293A (en) * | 2021-09-23 | 2022-02-08 | 广东核电合营有限公司 | Nuclear power station transmission line tripping processing system and method and storage medium |
-
2020
- 2020-04-03 CN CN202020484917.4U patent/CN211579706U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114024293A (en) * | 2021-09-23 | 2022-02-08 | 广东核电合营有限公司 | Nuclear power station transmission line tripping processing system and method and storage medium |
| CN114024293B (en) * | 2021-09-23 | 2024-01-26 | 广东核电合营有限公司 | Nuclear power station transmission line tripping processing system, method and storage medium |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102075005B (en) | Processing method for 110KV zone automatic standby power switching action on basis of EMS (Engine Management System) system | |
| CN106816956B (en) | Distribution automation terminal based on intelligent distributed principle | |
| CN202487453U (en) | Monitoring device for opening and closing of high-voltage isolating switch | |
| CN102623994B (en) | Substation area control method and system of microgrid operation mode | |
| CN211579706U (en) | System for long-range throw moves back reclosing | |
| CN104993448A (en) | Distribution substation low-voltage intelligent reclosing method | |
| CN103132558A (en) | Intelligent water supply system | |
| CN104124077A (en) | Electric switching-on device and switch inversing system of electrical equipment | |
| CN203632361U (en) | Logic controlling device for 110kV line automatic bus transfer equipment | |
| CN205068134U (en) | Fire control water feed pump set intelligence centralized control system | |
| CN105703480B (en) | Transformer neutral point disconnecting link remote comprehensive control circuit | |
| CN208986642U (en) | Long-range discharge controller | |
| CN213126490U (en) | Split type 5G communication intelligent turn-off device | |
| CN203071647U (en) | Low-voltage switch cabinet automatic input and recovery device | |
| CN107437848B (en) | System and method for non-signal access of stand-by power supply in monitoring background | |
| CN211930338U (en) | Remote intelligent monitoring system for power supply control power supply | |
| CN112332402A (en) | Dual-power measurement and control device | |
| CN110931311A (en) | VSP5 switch electric control circuit | |
| CN202127281U (en) | Non-power-off device | |
| CN213231260U (en) | Remote emergency stop safety protection device for container crane | |
| CN218888111U (en) | Reclosing remote throwing and withdrawing monitoring system | |
| CN214591477U (en) | Data transmission switching device | |
| CN208571710U (en) | Substation's telemechanical supervisor system is restarted in remote control | |
| CN204011111U (en) | Electric switch-on device and power equipment back brake system | |
| CN215006797U (en) | Anti-misoperation safety intelligent pre-payment electric meter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |