CN107276228B - Misoperation prevention management and control system for transformer substation pressing plate state - Google Patents
Misoperation prevention management and control system for transformer substation pressing plate state Download PDFInfo
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- CN107276228B CN107276228B CN201710546320.0A CN201710546320A CN107276228B CN 107276228 B CN107276228 B CN 107276228B CN 201710546320 A CN201710546320 A CN 201710546320A CN 107276228 B CN107276228 B CN 107276228B
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- 230000005540 biological transmission Effects 0.000 claims abstract description 8
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- 238000012544 monitoring process Methods 0.000 claims description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 2
- 238000005259 measurement Methods 0.000 claims 1
- 238000012423 maintenance Methods 0.000 abstract description 4
- 239000000758 substrate Substances 0.000 description 9
- 230000003068 static effect Effects 0.000 description 7
- 230000006870 function Effects 0.000 description 6
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- 230000003287 optical effect Effects 0.000 description 3
- 238000011897 real-time detection Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
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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
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Abstract
A misoperation prevention and control system for a transformer substation pressing plate state relates to the technical field of power grid operation safety, and particularly belongs to an misoperation prevention and control state for a transformer substation on-site pressing plate and switching operation whole-process pressing plate state. The intelligent lock comprises a computer, a data transmission seat, a PDA anti-misoperation key, a lock with RFID electronic tag lock code information, a microcomputer protection device, a measuring and controlling device of a switch and a knife switch and a pressing plate, wherein the PDA anti-misoperation key is connected with the computer through the data transmission seat, the PDA anti-misoperation key reads the RFID electronic tag lock code information on the lock through a radio frequency technology, and the pressing plate comprises an upper base (11) and a lower base (12). The device has the advantages of improving the management level of equipment and effectively controlling the operation of the pressing plate by operation and maintenance personnel.
Description
Technical Field
The invention relates to the technical field of power grid operation safety, in particular to an anti-misoperation control state of a transformer substation on-site pressing plate and a switching operation whole-process pressing plate state.
Background
The following five types of misoperation are strictly prevented in the switching operation process of the transformer substation: 1. a circuit breaker which is opened and closed by mistake; 2. a load-carrying pull-in disconnecting switch or a handcart contact; 3. the ground wire (the grounding disconnecting link) is hung (closed) by a belt; 4. a circuit breaker (isolating switch) with a grounding wire (grounding disconnecting link); 5. the electrified interval is wrongly entered, namely five prevention.
The pressing plate is a bridge and a tie for connecting the relay protection device or the automatic device with external wiring, and the realization of the protection function and whether the action outlet can normally function are related. When the operation mode of the power system is changed, the pressing plate is often involved in the switching, if the pressing plate is missed to switch or is misswitched, the realization of the relay protection function can be directly influenced, and the protection is refused or is misoperated when serious, so that the power equipment is burnt or a large-range power failure accident is caused, and the safe operation of the power grid is influenced. The fourth rule of general management of power transformation operation and maintenance of national electric network company increases the error prevention requirement of the mistakenly-switching (plugging) pressing plate (plugging handle) on the basis of the five-prevention.
At present, most of transformer substations have no misoperation prevention management and control of pressing plates, and the operation can only be carried out according to steps by operators according to written operation tickets, so that the situation that the operation tickets are wrongly written and the pressing plates are wrongly thrown and discharged due to negligence in the operation process exists, an effective technical management and control means is lacked, and potential safety hazards exist. The scheme is that an optical on-off sensing module is arranged on each pressing plate, each screen cabinet is required to be communicated with a management computer by cabling, a large number of optical on-off sensing modules and cables increase the probability of faults, and the workload and difficulty for managing and maintaining the system are additionally increased. If a certain link of the optical on-off sensing module or the cable is problematic, the switching operation can not be continued due to suspension, and normal switching operation is affected. At present, whether the input of the pressing plate is reliable or not is lack of judging means, and the pressing plate is already input, but the pressing plate is not input into the device, and because the contact connection of the pressing plate and the conduction of a loop are unreliable, the pressing plate is not reliably input, and potential safety hazards exist.
Disclosure of Invention
The invention aims to provide an misoperation prevention management and control system for the state of a transformer substation pressing plate, so as to achieve the purposes of realizing real-time detection of all the state of the transformer substation pressing plate, improving the management level of equipment and effectively managing and controlling the operation of the pressing plate by operation and maintenance personnel.
The invention provides a transformer substation pressing plate state misoperation prevention management and control system which is characterized by comprising a computer, a data transmission seat, a PDA misoperation prevention key, a lockset with RFID electronic tag lock code information, a microcomputer protection device, a measuring and control device of a switch and a knife switch and a pressing plate, wherein the PDA misoperation prevention key is connected with the computer through the data transmission seat, the PDA misoperation prevention key reads the RFID electronic tag lock code information on the lockset through a radio frequency technology, the pressing plate comprises an upper base body and a lower base body, the upper base body and the lower base body are arranged at the central positions corresponding to each other up and down, a rotating shaft and a spring are sequentially connected, the rotating shaft extends upwards and is fixed at the center of the upper base body, the spring extends downwards and is fixed at the center of the lower base body, the upper base body and the lower base body are respectively provided with a strong electric contact, a strong electric static contact, a weak electric contact and a weak electric static contact, two pairs of strong electric contacts and static contacts, and strong electric exit holes are respectively arranged at two sides of the lower base body; the bottom of the lower base body is provided with a screw fixing hole, the screw fixing hole is fixed on a transformer substation pressing plate installation iron plate through a bolt, meanwhile, a strong electric contact is connected into a tripping or closing loop, a weak electric contact is respectively connected into a collection plate of a measuring and controlling device of a microcomputer protecting device, a switch and a knife switch, and in addition, the measuring and controlling device of the computer, the microcomputer protecting device, the switch and the knife switch are respectively connected with a monitoring background machine.
Further, the computer is also provided with a pressing plate misoperation prevention management program, which comprises the following control flow: in a configuration table of a computer database, a pressing plate throwing and retreating table 1 and a pressing plate throwing and retreating configuration table 2 corresponding to four states of operation, hot standby, cold standby and overhaul of primary equipment are stored; before and during switching operation, the program enters a switching operation mode, logic judgment is carried out on a secondary pressing plate of equipment to be operated and operation steps, if the secondary pressing plate of the equipment to be operated is not matched with a pressing plate configuration table 2 in a primary equipment state, the PDA anti-misoperation key cannot be operated in the next step in a designated key link, and after switching operation is finished, if pressing plate switching does not meet the primary equipment state requirement, the PDA anti-misoperation key cannot be returned; in the non-switching operation mode, the program is checked with a pressing plate switching table 1 issued by a monitoring background machine in real time, and when the pressing plate is inconsistent with the pressing plate required by dispatching on site, an alarm prompt signal can be given.
According to the misoperation prevention management and control system for the state of the transformer substation pressing plate, the real-time detection of all the state of the transformer substation pressing plate can be technically realized only by replacing a small amount of traditional outlet pressing plates. The invention not only has the function of preventing misoperation of the pressing plate, but also has the whole process management function of preventing five types of misoperation, can independently operate, can be used as a subsystem to be embedded into an misoperation preventing system produced by the existing five-prevention manufacturer through protocol conversion and configuration, realizes effective control of the whole process of the pressing plate of the transformer substation, can thoroughly avoid accidents caused by the mistaken switching of the pressing plate, and has the advantages that the sensing of the switching state of the pressing plate is the real result of the device after the device senses the state of the pressing plate correctly, and the actual position is truly and reliably reflected. The invention can carry out real-time correction with the pressing plate switching table 1 issued by the monitoring background machine in real time, can give out an alarm prompt signal when the pressing plate is inconsistent with the pressing plate required by dispatching on site, can access the graphic gateway to upload the pressing plate information to the monitoring background machine, and can carry out real-time control on the switching condition of the pressing plate on site. In summary, the invention has the positive effects of improving the management level of equipment and effectively controlling the operation of the pressing plate by operation and maintenance personnel.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and,
FIG. 1 is a schematic diagram of the operation of the present invention;
FIG. 2 is a schematic view of a platen according to the present invention;
FIG. 3 is a control flow chart of the anti-misoperation management program.
Detailed Description
As shown in fig. 1, the misoperation prevention management and control system for the state of the transformer substation pressing plate provided by the invention comprises a computer, a data transmission seat, a PDA misoperation prevention key, a lockset with RFID electronic tag lock code information, a microcomputer protection device, a measuring and control device of a switch and a disconnecting link and a pressing plate.
As shown in fig. 2, the pressing plate comprises an upper substrate 11 and a lower substrate 12, the central positions of the upper substrate and the lower substrate corresponding up and down are provided with a rotating shaft 13 and a spring which are sequentially connected, the rotating shaft extends upwards and is fixed at the center of the upper substrate, the spring extends downwards and is fixed at the center of the lower substrate, wherein the upper substrate and the lower substrate are respectively provided with a strong electric contact 14, a strong electric static contact 15, a weak electric static contact 16 and a weak electric static contact 17 at the corresponding positions up and down, two pairs of strong electric contacts and static contacts are respectively formed, and in addition, two sides of the lower substrate are provided with a pair of strong electric exit holes 18 and weak electric exit holes 19 which are distributed in diagonal. The bottom of the lower base body is provided with screw fixing holes, the screw fixing holes are fixed on a transformer substation pressing plate mounting iron plate through bolts, meanwhile, strong electric contacts are connected into a tripping or closing loop, and weak electric contacts are respectively connected into an internal loop of a microcomputer protection device, a measuring and controlling device of a switch and a disconnecting link.
As shown in fig. 3, the present invention installs and runs the anti-misoperation management program on the computer, and includes the following control procedures: in a configuration table of a computer database, a pressing plate throwing and retreating table 1 and a pressing plate throwing and retreating configuration table 2 corresponding to four states of operation, hot standby, cold standby and overhaul of primary equipment are stored; before and during switching operation, the program enters a switching operation mode, logic judgment is carried out on a secondary pressing plate of equipment to be operated and operation steps, if the secondary pressing plate of the equipment to be operated is not matched with a pressing plate configuration table 2 in a primary equipment state, the PDA anti-misoperation key cannot be operated in the next step in a designated key link, and after switching operation is finished, if pressing plate switching does not meet the primary equipment state requirement, the PDA anti-misoperation key cannot be returned; in the non-switching operation mode, the program is checked with a pressing plate switching table 1 issued by a monitoring background machine in real time, and when the pressing plate is inconsistent with the pressing plate required by dispatching on site, an alarm prompt signal can be given.
The data transmission seat is connected with the computer through a USB data line to charge and communicate with the PDA anti-misoperation key;
the PDA anti-misoperation key reads RFID electronic tag lock code information on the lockset through a radio frequency technology, judges whether the RFID electronic tag lock code information is matched, if so, the lockset can be unlocked by using the PDA anti-misoperation key, and if not, the lockset can not be unlocked; the pressure plate comprises two pairs of strong electric contacts and weak electric contacts, the strong electric contacts are direct current 220V connected into an operation loop, the weak electric contacts are direct current 24V connected into a collection plate of a microcomputer protection device, a measuring and controlling device of a switch and a knife switch, the collection plate is used as an opening quantity to be perceived by the microcomputer protection device, the measuring and controlling device of the switch and the knife switch, the opening quantity is defined in a database of a monitoring background machine (SCADA system), and the switching perception of an outlet pressure plate is realized. Therefore, the microcomputer protection device, the switch and the knife switch are measured and the control device effectively monitors the switching condition of the pressing plate, the switching condition can be sent to the SCADA system and forwarded to the error-proof microcomputer, and the error-proof microcomputer monitors the function and the whole coverage of the outlet pressing plate in real time by adding the corresponding point table.
Preferably, the invention adopts a type of Nanry RCS931 line optical fiber differential microcomputer protection device; measuring and controlling device of south Rui RCS9705C switch and knife switch; the PDA of the type IV is superior in preventing false keys.
Claims (2)
1. The utility model provides a transformer substation's clamp plate state prevents maloperation management and control system, which is characterized by, including computer, data transmission seat, PDA prevent mistake key, have RFID electronic tags lock code information's tool to lock, microcomputer protection device, switch and knife switch's measurement and controlling means and clamp plate, wherein, PDA prevent mistake key passes through data transmission seat and connects the computer, PDA prevent mistake key passes through radio frequency technology and reads RFID electronic tags lock code information on the tool to lock, the clamp plate includes upper base member (11) and lower base member (12), upper base member and lower base member up-down correspondence's central point, be equipped with pivot (13) and spring that connect gradually, the pivot upwards extends and is fixed to upper base member central point, the spring downwardly extending is fixed to lower base member's central point, upper base member and lower base member up-down correspondence position are provided with strong electric contact (14), strong electric contact (15) and weak electric contact (16) and weak electric contact (17) respectively, two pairs of strong electric contact and electrostatic contact have been formed, lower base member both sides are equipped with a pair of strong electric hole (18) and weak electric exit hole (19) that become diagonal distribution respectively; the bottom of the lower base body is provided with a screw fixing hole, the screw fixing hole is fixed on a transformer substation pressing plate installation iron plate through a bolt, a strong electric contact is connected into a tripping or closing loop, a weak electric contact is respectively connected into a collection plate of a measuring and controlling device of a microcomputer protecting device, a switch and a knife switch, and in addition, the measuring and controlling device of the computer, the microcomputer protecting device, the switch and the knife switch are respectively connected with a monitoring background machine.
2. The transformer substation pressure plate state misoperation prevention management and control system according to claim 1, wherein the computer is further provided with a pressure plate misoperation prevention management program, and the system comprises the following control procedures: in a configuration table of a computer database, a pressing plate throwing and retreating table 1 and a pressing plate throwing and retreating configuration table 2 corresponding to four states of operation, hot standby, cold standby and overhaul of primary equipment are stored; before and during switching operation, the program enters a switching operation mode, logic judgment is carried out on a secondary pressing plate of equipment to be operated and operation steps, if the secondary pressing plate of the equipment to be operated is not matched with a pressing plate configuration table 2 in a primary equipment state, the PDA anti-misoperation key cannot be operated in the next step in a designated key link, and after switching operation is finished, if pressing plate switching does not meet the primary equipment state requirement, the PDA anti-misoperation key cannot be returned; in the non-switching operation mode, the program is checked with a pressing plate switching table 1 issued by a monitoring background machine in real time, and when the pressing plate is inconsistent with the pressing plate required by dispatching on site, an alarm prompt signal can be given.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2017102051020 | 2017-03-31 | ||
| CN201710205102 | 2017-03-31 |
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| CN107276228A CN107276228A (en) | 2017-10-20 |
| CN107276228B true CN107276228B (en) | 2023-07-07 |
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| CN201710546320.0A Active CN107276228B (en) | 2017-03-31 | 2017-07-06 | Misoperation prevention management and control system for transformer substation pressing plate state |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110854806A (en) * | 2019-10-11 | 2020-02-28 | 中国神华能源股份有限公司国华电力分公司 | Protection pressing plate monitoring method and device, electronic equipment and storage medium |
| CN112908747B (en) * | 2020-11-11 | 2022-08-12 | 国家电网有限公司 | Intelligent novel relay protection tripping outlet pressing plate capable of preventing accidental switching |
| CN113872332B (en) * | 2021-11-09 | 2024-05-14 | 国网山西省电力公司朔州供电公司 | Intelligent operation and maintenance and error prevention management and control system and method for secondary pressure plates of transformer substation |
| CN116388113B (en) * | 2023-06-06 | 2023-10-20 | 国网山西省电力公司超高压变电分公司 | Anti-misoperation monitoring system and method for relay protection hard pressing plate of transformer substation |
| CN118376862B (en) * | 2024-06-20 | 2024-08-20 | 国网山东省电力公司日照供电公司 | Transformer substation pressure plate monitoring device |
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| CN104283320A (en) * | 2014-10-29 | 2015-01-14 | 国网四川省电力公司达州供电公司 | State monitoring terminal structure for electric protection pressing plate |
| CN104407289A (en) * | 2014-09-15 | 2015-03-11 | 南京梅山冶金发展有限公司 | Remote high-voltage motor insulation testing device and control system thereof |
| CN105305365A (en) * | 2015-10-30 | 2016-02-03 | 国网福建省电力有限公司 | Power grid relay protection emergency management system |
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2017
- 2017-07-06 CN CN201710546320.0A patent/CN107276228B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011143903A1 (en) * | 2010-05-19 | 2011-11-24 | 广东电网公司电力科学研究院 | Method and system for automatically generating five-fault prevention logical rules in electrical substations |
| CN104407289A (en) * | 2014-09-15 | 2015-03-11 | 南京梅山冶金发展有限公司 | Remote high-voltage motor insulation testing device and control system thereof |
| CN104283320A (en) * | 2014-10-29 | 2015-01-14 | 国网四川省电力公司达州供电公司 | State monitoring terminal structure for electric protection pressing plate |
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| CN106291083A (en) * | 2016-10-08 | 2017-01-04 | 国家电网公司 | Portable protection pressing plate voltage check device |
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| CN107276228A (en) | 2017-10-20 |
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