CN203761138U - Device for preventing maloperation in remote control of substation automatic measurement and control equipment - Google Patents
Device for preventing maloperation in remote control of substation automatic measurement and control equipment Download PDFInfo
- Publication number
- CN203761138U CN203761138U CN201420155063.XU CN201420155063U CN203761138U CN 203761138 U CN203761138 U CN 203761138U CN 201420155063 U CN201420155063 U CN 201420155063U CN 203761138 U CN203761138 U CN 203761138U
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- Prior art keywords
- remote control
- relay
- loop
- chip microcomputer
- circuit
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- 238000005259 measurement Methods 0.000 title abstract description 8
- 230000000903 blocking effect Effects 0.000 claims abstract description 16
- 238000004891 communication Methods 0.000 claims abstract description 16
- 230000009466 transformation Effects 0.000 claims description 12
- 230000000087 stabilizing effect Effects 0.000 claims description 10
- 238000007689 inspection Methods 0.000 claims description 6
- 238000001514 detection method Methods 0.000 abstract description 8
- 230000001276 controlling effect Effects 0.000 abstract description 5
- 238000012544 monitoring process Methods 0.000 abstract description 5
- 230000001105 regulatory effect Effects 0.000 abstract description 4
- 230000005540 biological transmission Effects 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 208000033999 Device damage Diseases 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/16—Electric power substations
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/20—Systems supporting electrical power generation, transmission or distribution using protection elements, arrangements or systems
Landscapes
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
A device for preventing maloperation in remote control of substation automatic measurement and control equipment is characterized by comprising a single-chip microcomputer, a remote control direct-current detection circuit, a post-closing relay closing detection circuit, a post-closing relay opening detection circuit, a remote control blocking relay drive circuit, and a blocking relay normally-closed contact introduced to a remote control circuit of a substation automatic measurement and control device. The device has the advantages that the automatic control systems (such as AVC) can be prevented from remotely controlling one breaker or remotely regulating a main station on-load tap changer over and over again, a blocking instruction from a substation communication gateway terminal can be received to cut off the specific remote control circuit, detection information of the remote control circuit and operation state information of the substation automatic measurement and control device can be transmitted to a substation local microcomputer monitoring system and a scheduling main station, remote switching instructions issued by the substation communication gateway terminal can be received and executed, and the device is simple in structure and capable of operating reliably.
Description
Technical field
The utility model relates to a kind of Measurement-control System of Transformer Substation protective device, particularly a kind of automation of transformation substations measuring and controlling equipment remote control mistake outlet device that prevents.
Background technology
The transformer station's end primary equipment causing due to straighforward operation in electric power system damages, band ground cutter closes the serious accidents such as disconnecting link and happens occasionally, and its reason is because the remote control circuit of automation of transformation substations measure and control device does not prevent the effective technology measure of remote control mistake outlet.In the remote control circuit that at present automation of transformation substations measure and control device adopts, anti-misoperation locking device is not set, therefore cannot guarantees not occur similar main website end reactive voltage automatic regulating system (AVC) because in parameter arranges wrong short time, switched capacitor causes that capacitor scaling loss, band ground cutter close that disconnecting link causes that busbar grounding causes that full station has a power failure repeatedly, on-load drawing disconnecting link causes disconnecting link device damage, protection exception time-division to close circuit breaker to cause the misoperation faults such as equipment belt failure operation.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of reliable operation is provided, simple in structure, and the automation of transformation substations measuring and controlling equipment remote control that prevents that can apply on automation of transformation substations measure and control device misses outlet device.
The purpose of this utility model is achieved in that a kind of automation of transformation substations measuring and controlling equipment remote control mistake outlet device that prevents, it is characterized in that it is detected loop, closed rear relay and close a floodgate detect that loop, the trip inspection survey time road of closing rear relay, remote controlled locking relay drive loop, the blocking relay length introduced is closed contact and formed in automation of transformation substations measure and control device remote control circuit by single-chip microcomputer, remote control direct current, by resistance, LED, light, every the remote control direct current connecting and composing, detect the IO4 port that loop is connected in single-chip microcomputer; By resistance, voltage stabilizing didoe, light, every, the rear relay that closes that closes that rear relay actuation coil contact connects and composes, close a floodgate and detect the IO1 port that loop is connected in single-chip microcomputer; By resistance, voltage stabilizing didoe, light every, close the IO2 port that rear relay trip inspection survey time road is connected in single-chip microcomputer that closes that rear relay involution coil contact connects and composes; The remote controlled locking relay being connected and composed every, resistance, blocking relay by light drives loop to be connected in the IO3 port of single-chip microcomputer, and the length of blocking relay is closed in the remote control circuit of contact series connection access measure and control device.
The VCC of described single-chip microcomputer and Gnd port are connected with voltage stabilizing circuit module, and RX1 and TX1 port are connected with the serial communication loop consisting of every circuit serial ports light, and the other end in serial communication loop is connected with terminal server.
Single-chip microcomputer closes the action situation of rear relay actuation coil and involution coil by IO port processing, gather and control input and the electriferous state that direct current sky is opened, and controls remote controlled locking relay.By serial ports and transformer station's gateway machine communication; detection information to remote dispatching main website and local monitoring system of electric substation transmission control loop and device itself; reception is from the locking information of local monitoring system of electric substation, as: earth connection or grounding switch locking switch operation, protection exception locking breaker operator, in the short time, repeatedly jump and close this breaker operator of circuit breaker lock etc.1 single-chip microcomputer can be controlled many times remote control circuits in 1 interval, for example, adopt the line segregation of 1/2 wiring to have the 4 times control loops that amount to of 3 disconnecting links of 1 circuit breaker.
The utility model closes contact by be connected in series the length of blocking relay in remote control circuit, take single-chip microcomputer as core is by gathering minute state that closes of remote control circuit in a period of time and judge and prevent in distant place automation control system (as the AVC etc.) short time repeatedly the situation generation of 1 circuit breaker of straighforward operation or 1 main transformer on-load tap changer of remote regulating; The remote control circuit in automation measurement and control equipment is cut off in the locking order of sending by reception transformer substation communication gateway machine; By transmit the remote monitoring warning function that the detection information of remote control circuit and the running status of device body realize remote control circuit to Local Computer Supervisory System for Substations and scheduling station, and can receive and carry out a distant place that transformer substation communication gateway machine issues and throw and move back order, when device exits, remote control circuit is normally used.It is simple that it also has structural principle simultaneously, the feature of reliable operation.
Accompanying drawing explanation
Fig. 1 is circuit theory diagrams of the present utility model;
Fig. 2 is that the utility model accesses existing automation of transformation substations measure and control device remote control circuit schematic diagram.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail: as shown in Figure 1, it is example that the present embodiment be take the blocking function of realizing 1 remote control circuit.
Single-chip microcomputer IC1 closes the action situation of rear relay KKJ actuation coil DZ by IO1 port processing, by the collection of IO2 mouth, close the action situation of rear relay KKJ involution coil FG, by IO4, gather input and the electriferous state that remote control direct current sky is opened, by IO3, control remote controlled locking relay BSJ, adopt serial ports and transformer station's gateway machine communication, detection information to the local supervisory control system of transformer station and remote dispatching main website transmission remote control circuit and device itself, receives the locking information from the local supervisory control system of transformer station.
Remote control direct current detects loop and forms every OC4 by being connected in resistance R 1, resistance R 2, LED 1, voltage stabilizing didoe D3, the light that direct current sky opens between the lead-out terminal of SK the two poles of the earth; R1 and R2 are for current limliting; LED1 opens and drops into and charged state for outer aobvious remote control direct current sky; by State-output, the IO4 port to single-chip microcomputer gathers OC4, and D3 is used for preventing overvoltage and protects OC4.
Voltage stabilizing circuit module IC2 adopts the 220V UPS power supply in transformer station, for 0V earth potential, the output of+5V supply voltage, the output of+24V supply voltage are provided in installing, wherein+5V power supply has the loop power supply of electrical connection for single-chip microcomputer and with single-chip microcomputer, and+24V power supply drives the power supply of loop and all the other external loops for remote controlled locking relay.
Close rear relay close a floodgate detect loop by resistance R 3, resistance R 6, light every OC1, voltage stabilizing didoe D1, close rear relay actuation coil contact KKJ-DZ and form; R3, R6 play metering function; D1 is used for preventing overvoltage and protects OC1; when combined floodgate guidance command is carried out; close rear relay actuation coil contact KKJ-DZ closed; light, every OC1 conducting, transmits remote control switching signal to single-chip microcomputer.
Close rear relay trip inspection survey time routing resistance R4, resistance R 7, voltage stabilizing didoe D2, light every OC2, close rear relay involution coil contact KKJ-FG and form; R4, R7 play metering function; D2 is used for preventing overvoltage and protects OC2; when separating brake guidance command is carried out; close rear relay involution coil contact KKJ-FG closed; light, every OC2 conducting, transmits remote control sub-gate signal to single-chip microcomputer.
Remote controlled locking relay drives loop to be comprised of every OC3, blocking relay BSJ resistance R 5, resistance R 8, light, the length of blocking relay is closed in the remote control circuit of contact BSJ1 series connection access measure and control device (referring to Fig. 2), when single-chip microcomputer is exported high level by IO3 port, light is every OC3 conducting, blocking relay BSJ excitation actuating, BSJ1 length is closed contact and is opened, thereby disconnects the power supply of remote control circuit.
Serial communication loop is comprised of every IC circuit 3 serial ports light, and IC3 one end is connected in serial ports RX1 and the TX1 of single-chip microcomputer, and one end is connected in terminal server, plays electric signal isolation effect.
By terminal server, transformer substation communication gateway machine can be communicated by letter with many playscripts with stage directions utility model device, the local supervisory control system of transformer substation communication gateway machine Hai Yu transformer station and remote dispatching master station communication.
The course of work of the present utility model is, single-chip microcomputer by close rear relay close a floodgate detect loop with close rear relay trip inspection survey time road gather and judge remote control circuit in a period of time close the whether out-of-limit value of minute number of times, by remote controlled locking relay, to drive loop open BSJ1 and remote control circuit is disconnected, to avoid in distant place automation control system (as the AVC etc.) short time repeatedly the situation of 1 circuit breaker of remote control or 1 main transformer on-load tap changer of remote regulating to occur.The locking order that single-chip microcomputer can be sent according to transformer substation communication gateway machine drives loop to disconnect specific remote control circuit by remote controlled locking relay.Single-chip microcomputer transmits automation measurement and control equipment 1 interval in the detection information of a plurality of remote control circuits and the running state information of device body every circuit to Local Computer Supervisory System for Substations and scheduling station by serial ports light and realizes remote control circuit remote monitoring warning function.The distant place that single-chip microcomputer Hai Ke operation dispatching main website issues by transformer substation communication gateway machine is thrown and is moved back order, and when device exits, BSJ1 remains closed.
The utility model can be arranged on automation measurement and control equipment panel, is convenient to secondary circuit wiring.
As shown in Figure 2, the utility model has increased the long close node BSJ1 of 1 blocking relay on automation measurement and control equipment remote control circuit, when described blocking relay action, BSJ1 contact disconnects, and remote control circuit disconnects at once, thereby realizes the object of locked remote control operation.
Claims (2)
1. one kind prevents automation of transformation substations measuring and controlling equipment remote control mistake outlet device, it is characterized in that it is detected loop, closed rear relay and close a floodgate detect that loop, the trip inspection survey time road of closing rear relay, remote controlled locking relay drive loop, the blocking relay length introduced is closed contact and formed in automation of transformation substations measure and control device remote control circuit by single-chip microcomputer, remote control direct current, by resistance, LED, light, every the remote control direct current connecting and composing, detect the IO4 port that loop is connected in single-chip microcomputer; By resistance, voltage stabilizing didoe, light, every, the rear relay that closes that closes that rear relay actuation coil contact connects and composes, close a floodgate and detect the IO1 port that loop is connected in single-chip microcomputer; By resistance, voltage stabilizing didoe, light every, close the IO2 port that rear relay trip inspection survey time road is connected in single-chip microcomputer that closes that rear relay involution coil contact connects and composes; The remote controlled locking relay being connected and composed every, resistance, blocking relay by light drives loop to be connected in the IO3 port of single-chip microcomputer, and the length of blocking relay is closed in the remote control circuit of contact series connection access measure and control device.
2. a kind of automation of transformation substations measuring and controlling equipment remote control mistake outlet device that prevents according to claim 1, the VCC and the Gnd port that it is characterized in that described single-chip microcomputer are connected with voltage stabilizing circuit module, RX1 and TX1 port are connected with the serial communication loop consisting of every circuit serial ports light, and the other end in serial communication loop is connected with terminal server.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420155063.XU CN203761138U (en) | 2014-04-02 | 2014-04-02 | Device for preventing maloperation in remote control of substation automatic measurement and control equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420155063.XU CN203761138U (en) | 2014-04-02 | 2014-04-02 | Device for preventing maloperation in remote control of substation automatic measurement and control equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203761138U true CN203761138U (en) | 2014-08-06 |
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ID=51256375
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420155063.XU Expired - Fee Related CN203761138U (en) | 2014-04-02 | 2014-04-02 | Device for preventing maloperation in remote control of substation automatic measurement and control equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203761138U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109450088A (en) * | 2018-11-05 | 2019-03-08 | 国网山西省电力公司忻州供电公司 | Anti- school and monitoring method for fail safe system for transformer substation |
-
2014
- 2014-04-02 CN CN201420155063.XU patent/CN203761138U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109450088A (en) * | 2018-11-05 | 2019-03-08 | 国网山西省电力公司忻州供电公司 | Anti- school and monitoring method for fail safe system for transformer substation |
| CN109450088B (en) * | 2018-11-05 | 2022-03-29 | 国网山西省电力公司忻州供电公司 | Anti-calibration and monitoring method for transformer substation five-prevention system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140806 |