CN101702539A - Switch intelligent interface unit applied to digitized substation - Google Patents
Switch intelligent interface unit applied to digitized substation Download PDFInfo
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- CN101702539A CN101702539A CN200910237559A CN200910237559A CN101702539A CN 101702539 A CN101702539 A CN 101702539A CN 200910237559 A CN200910237559 A CN 200910237559A CN 200910237559 A CN200910237559 A CN 200910237559A CN 101702539 A CN101702539 A CN 101702539A
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- 241000272814 Anser sp. Species 0.000 claims abstract description 44
- 230000006854 communication Effects 0.000 claims abstract description 24
- 238000004891 communication Methods 0.000 claims abstract description 23
- 238000000034 method Methods 0.000 claims abstract description 10
- 230000008569 process Effects 0.000 claims abstract description 8
- 230000007246 mechanism Effects 0.000 claims abstract description 5
- 238000012423 maintenance Methods 0.000 claims description 5
- 239000000835 fiber Substances 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 abstract description 2
- 238000009434 installation Methods 0.000 abstract 1
- 230000006870 function Effects 0.000 description 24
- 230000009471 action Effects 0.000 description 13
- 238000010586 diagram Methods 0.000 description 8
- 230000005540 biological transmission Effects 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 3
- 230000009191 jumping Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000002224 dissection Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006855 networking Effects 0.000 description 1
- 238000005457 optimization Methods 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
-
- 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
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
- Y04S40/124—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wired telecommunication networks or data transmission busses
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- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
- Emergency Protection Circuit Devices (AREA)
Abstract
The invention discloses a switch intelligent interface unit which has the technology comprising: the switch intelligent interface unit is directly installed inside a circuit breaker and forms an organic whole together with the circuit breaker, and an outdoor installation cabinet can be omitted; a software programmable logic (PLC) way is used for replacing a great deal of hardware of a base relay and realizing a secondary circuit of the circuit breaker, so that the secondary circuit of the circuit breaker can be simplified and optimized; and IEC 61850 configuration and GOOSE communication mechanism are supported. The switch intelligent interface belongs to the control field of an electric power system, and can be used for solving the problems of process layer state quantity information acquisition and switch control of a digitized substation.
Description
Technical field
The invention belongs to field of power system control, be specifically related to a kind of digital interface unit that can be used for solving process layer on off state amount collection of digitlization power station and control procedure.
Background technology
The principal character of digital transformer substation is " primary equipment intellectuality, secondary device networking ".Consider problems such as present circuit breaker technical merit and the transformation of old station, the general at present mode of giving the plug-in intelligent terminal of conventional switch that adopts realizes the digitlization of breaker signal collection and control procedure.The arrangement mode of intelligent terminal mainly is to transfer to switch yard by outdoor cabinet to install on the spot at present.There is following shortcoming in this mode:
1) although intelligent cell and circuit breaker have shortened space length, contact remains unchanged with fit system.Intelligent cell and circuit breaker convergence control cabinet are kept original electric secondary circuit separately, and secondary circuit is still very complicated, loaded down with trivial details, do not obtain simplifying and optimization.Operation maintenance is more complicated still.
2) the on-the-spot a large amount of high-protection level outdoor cabinets of configuration that need have increased construction investment and place.
3) interoperability is bad, and intelligent operation box need be communicated by letter with the bay device of different manufacturers, need have good interoperability.Otherwise, use very restricted.
The shortcoming that the present invention is primarily aimed at the prior art scheme proposes, and has solved the problems referred to above better.
Summary of the invention
For overcoming the above-mentioned shortcoming of existence of the prior art, solve process layer of digitalization transformer substation switching value information gathering and control problem, the invention provides a kind of switch intelligent interface unit, specifically by the following technical solutions:
A kind of switch intelligent interface unit, this intelligent interface unit is directly installed in the circuit breaker, form an organic whole with circuit breaker, described switch intelligent interface unit comprises GOOSE communication and PLC module, opens into module, leaves module and power module, described GOOSE communication and PLC module, open into module, leave module and adopt the internal bus of high speed to be connected, open into module and be connected, finish the collection of on off state amount by contacts such as cable on the spot and circuit breaker breaker tripping and closing positions; Leave between module and circuit breaker trip coil, the closing coil by cable on the spot and be connected,, finish control circuit breaker by operating breaker breaker tripping and closing coil; GOOSE communication and PLC module have been finished according to configuration file and have been finished GOOSE communication initialization, GOOSE reception, GOOSE sending function, realize software programmable logic PLC function, externally adopt the 100M fiber optic Ethernet and be connected intelligent cell to be connected with the process layer switch that cell device is communicated by letter; GOOSE communication and PLC module are opened positional information of sending on the module and the GOOSE control command of coming from Ethernet according to obtaining on the internal bus, finish the PLC software function, the control command of PLC function output sends to through internal bus leaves module, by leaving open circuit tripping operation and close a floodgate of module controls, the state information of PLC function output sends on the Ethernet by GOOSE and is connected intelligent cell and is connected with the process layer switch that cell device is communicated by letter.
Use switch intelligent interface unit of the present invention to compare with circuit breaker traditional operation loop, control loop is very simple, and the logic in former loop all realizes in software, comprises keeping loop, locked loop, anti-jump loop.Substitute the secondary circuit that most of relay is formed with software mode, very flexible, move different programs and just can realize different logics.Also can make operation, the service work of secondary circuit obtain simplifying.In order to realize cooperating with the wall protective relaying device or the measure and control device of different manufacturers, the intelligent interface unit of switch is also supported international explorative communication standard.Switch intelligent interface unit of the present invention is supported the IEC61850 standard, obtains interoperability with this.In order to guarantee real-time, use GOOSE communication mechanism is finished the communication process with bay device.
Description of drawings:
Fig. 1 switch intelligent cell hardware structure diagram;
Fig. 2 switch intelligent cell GOOSE communication scheme;
Fig. 3 circuit breaker has the operation circuit schematic diagram now;
Fig. 4 inserts the operation circuit schematic diagram of circuit breaker behind the switch intelligent interface unit of the present invention;
Closing loop after Fig. 5 simplifies keeps logical schematic;
Fig. 6 software keeps loop PLC logic diagram;
Fig. 7 relay-type locked loop schematic diagram;
Relay-type locked loop schematic diagram after Fig. 8 simplifies
Fig. 9 closing locking PLC software logic diagram;
Figure 10 locking PLC software logic diagram that trips;
The anti-jump PLC software logic of Figure 11.
Embodiment
According to Figure of description technical scheme of the present invention is described in further detail below.
The invention discloses a kind of switch intelligent interface unit, as shown in Figure 1, this switch intelligent interface unit comprises GOOSE and PLC module, opens into module, leaves module and power module.
Described switch intelligent interface unit comprises GOOSE and PLC module, opens into module, leaves module and power module, described GOOSE communication and PLC module, open into module, leave module and adopt the internal bus of high speed to be connected, open into module and be connected, finish the collection of on off state amount by contacts such as cable on the spot and circuit breaker breaker tripping and closing positions; Leave between module and circuit breaker trip coil, the closing coil by cable on the spot and be connected,, finish control circuit breaker by operating breaker breaker tripping and closing coil; GOOSE and PLC module have been finished according to configuration file and have been finished GOOSE communication initialization, GOOSE reception, GOOSE sending function, realize software programmable logic PLC function, externally adopt the 100M fiber optic Ethernet to be connected with process layer switch (switch that is connected intelligent cell and cell device communication); GOOSE and PLC module are opened positional information of sending on the module and the GOOSE control command of coming from Ethernet according to obtaining on the internal bus, finish the PLC software function, the control command of PLC function output sends to through internal bus leaves module, by leaving open circuit tripping operation and close a floodgate of module controls, the state information of PLC function output sends on the Ethernet by GOOSE.
The power supply module is a dc inverter, direct current 220V or the input of 110V voltage.
The switch intelligent cell has been realized the parsing of IEC61850 model file in the mode of software, has finished the interoperability of configuration language.Realize the GOOSE communication service of IEC61850-8-1 kind in the mode of software, realized the interoperability of communication service.Fig. 2 is a switch intelligent cell GOOSE communication scheme.The breaker tripping and closing GOOSE message that the bay device that receives by the GOOSE Ethernet sends, give PLC Processing tasks through after the dissection process, the PLC Processing tasks is according to leaving driving order by internal bus to leaving the module transmission from opening into the state information of module reception, and the switch intelligent cell passes through the GOOSE Ethernet to the state information of bay device transmission circuit breaker and the state information synthetic with PCL by the GOOSE transmission task in the GOOSE module.
Described switch intelligent interface unit is directly installed in the mechanism case or convergence control cabinet of circuit breaker, forms an organic whole with circuit breaker.
Traditional breaker operator loop is provided with breaker tripping and closing relay, latching relay, anti-trip relay etc. as shown in Figure 3 in the loop, finished the controlled function of circuit breaker by the combination of relay.The breaker tripping and closing relay is trip signal input source, finish the function that inserts the tripping operation positive supply, latching relay detects to jump and closes the electric current in loop, before disconnecting, the circuit breaker auxiliary contact guarantee the breaker tripping and closing relay closes, anti-trip relay detects trip signal, locking closing circuit when trip signal is arranged finishes preventing the function of jumping.In this intelligent interface unit, replace a large amount of base relay hardware modes with programmable logic device PLC and finish the electric secondary circuit function of circuit breaker, because the final tripping operation of circuit breaker needs energy drives, the module of leaving of switch intelligent interface unit still has tripping operation, the high power relay of combined floodgate usefulness, these high power relays comprise A phase tripping relay, B phase tripping relay, C phase tripping relay, A phase closing relay, B phase closing relay, C phase closing relay, conventional apparatus between positive-negative power except being connected with circuit breaker trip, closing coil and tripping operation, outside the high power relay of combined floodgate usefulness, also be connected with latching relay, anti-trip relay and blocking relay etc., described switch intelligent interface unit is simplified when being connected with circuit breaker greatly, between positive-negative power, only connected tripping operation, the high power relay of combined floodgate usefulness and circuit breaker trip, closing coil specifically is connected to: A phase tripping relay and circuit breaker A phase breaking coil are connected between the positive-negative power; B phase tripping relay and circuit breaker B phase breaking coil are connected between the positive-negative power; C phase tripping relay and circuit breaker C phase breaking coil are connected between the positive-negative power; A phase closing relay and circuit breaker A phase closing coil are connected between the positive-negative power; B phase closing relay and circuit breaker B phase closing coil are connected between the positive-negative power; C phase closing relay and circuit breaker C phase closing coil are connected between the positive-negative power.The maintenance return circuit of PLC logic realization circuit breaker, locked loop function and anti-jump loop function.As shown in Figure 4, the control logic of switch all realizes by PLC, has only kept the breaker tripping and closing power relay of control breaker coil, guarantees its reliability by double-contact.
1) keeps the loop
Relay-type keeps circuit theory as follows:
Keep the loop to comprise that tripping operation keeps and close a floodgate keeping, keeping the loop with tripping operation is example, and to latching relay coil and breaker coil charging, latching relay and circuit breaker all move after the action contact conducting.The holding contact conducting of latching relay action back moves the contact this moment to regain back still conducting of loop, plays the effect that keeps action.After the circuit breaker tripping, breaker contact point can be opened, and it is big capacity contact, can current interruption.Loop after the simplification as shown in Figure 5, the action back loop conducting of action contact, the circuit breaker action of breaker coil charging back, breaker contact point is finished current interruption, when the bright circuit breaker of the state table that breaker contact point returns is reliable disconnect after, the PLC software logic is regained the action contact.After using PLC software to finish the maintenance function, need intelligent cell input circuit breaker auxiliary contact to open into the participation logic determines.After software is finished the maintenance function, also can keep the current interruption contact of former circuit breaker, but which contact current interruption to depend on the responsiveness of control box contact and circuit breaker contact in the reality by.Software keeps logic to be illustrated in figure 6 as the rest-set flip-flop logic, and trip signal drives the tripping operation exit relay, regains the tripping relay outlet by the circuit breaker trip position; Combined floodgate command driven combined floodgate exit relay is regained the closing relay outlet by the breaker closing position.
2) locked loop
Relay-type locked loop principle as shown in Figure 7, latch contact action back blocking relay coil charges, its action back, slave latch contact disconnects closing loop, even there is this moment action closing of contact circuit breaker also can not move, reaches blocking function.Relay-type locked loop principle after the simplification as shown in Figure 8, with the direct access device of latch contact, software is judged when block signal is arranged not output action contact, on software by logic realization the function of former relay.
Locked loop mainly comprises pressure atresia, and the latching logic of PLC software is simulated actual relay logic, also participates in the output logic of other states in output breaker tripping and closing order, as closes the position, back.Closing locking logic, tripping operation latching logic such as Fig. 9, shown in Figure 10, software is judged and output signal with reference to the logic theory of traditional operation case behind the various input states of comprehensive judgement.For the closing locking logic, software consideration the reclosing input and the input of closing by hand on the spot of protective device, 1YYJ, the 2YYJ, 3YYJ, the 4YYJ that have adopted the traditional operation case have simulated the relay time-delay of traditional operation case simultaneously as block signal; For the tripping operation latching logic, software at first all kinds of tripping operation inputs has been done or logic gathers, and is judging the total locking that realizes after pressure reduces locking combined floodgate and pressure reduction lock operation signal the tripping operation outlet.Closing locking logic and tripping operation latching logic have been finished the set of the back state (HHJ) that closes a floodgate jointly and have been resetted.
3) anti-jump loop
Relay-type locked loop principle as shown in Figure 7, after the trip contact action, anti-trip relay is charged, and its driven bounce-proof contact in action back disconnects closing circuit, thereby guarantee that this moment, even the closing contact conducting can not allow the circuit breaker loop charged yet, prevent that circuit breaker from jumping.
Relay-type locked loop principle after the simplification as shown in Figure 8, with the direct access device of trip contact, software judges when block signal is arranged and do not export closing contact, on software by logic realization the function of former relay.
Anti-jump loop is mainly finished the jump locking of protection of this cover and another set of protection, needs the another set of protection trip signal of input, and trip signal or the output back protected with this cover cut off the combined floodgate logic.Anti-jump loop PLC software logic as shown in figure 11, switch intelligent interface unit at first all trip signals has been carried out or logic gathers, before order is closed a floodgate in output, trip signal is judged, just finish the outlet function of closing a floodgate when not having trip signal, possessed the anti-jump cooperation function of following pair of cover of dualization configuration condition unit.
5, obtain interoperability
Switch intelligent interface unit is externally supported the IEC61850 international standard, obtains interoperability with other producer's equipment with this.Switch intelligent interface unit can be resolved and be met the model file that IEC61850-6 requires, and in order to improve the real-time of communication, switch intelligent interface unit adopts the GOOSE mechanism among the IEC61850-8-1 to finish and the communicating by letter of bay device.Switch intelligent interface unit supports GOOSE issue (sending the GOOSE message) and GOOSE to subscribe to (receiving the GOOSE message by configuration).Switch intelligent interface unit of the present invention has been realized the GOOSE communication service among the IEC61850-8-1, possesses the interoperability with other producer's equipment.The correspondence with foreign country function can be realized by the network communication module of switch intelligent interface unit.
Claims (4)
1. switch intelligent interface unit, described intelligent interface unit is installed in circuit breaker inside, it is characterized in that:
Described switch intelligent interface unit comprises GOOSE communication and PLC module, opens into module, leaves module and power module, and described power module is used to GOOSE to communicate by letter and the PLC module, open into module, leave module required DC power supply is provided; Described GOOSE communication and PLC module, open into module, leave module and adopt internal bus at a high speed to be connected, open and pass through on the spot into module that cable is connected with contact, circuit breaker breaker tripping and closing position, finish the collection of on off state amount; Leave module and circuit breaker trip coil, closing coil and be connected by cable on the spot respectively,, finish control circuit breaker by operating breaker breaker tripping and closing coil; GOOSE communication and PLC module are finished GOOSE communication initialization, GOOSE reception, GOOSE sending function according to configuration file, realize software programmable logic PLC function, externally adopt the 100M fiber optic Ethernet and be connected intelligent cell and be connected with the process layer switch that cell device is communicated by letter.
2. switch intelligent interface unit according to claim 1 is characterized by, and described switch intelligent interface unit is directly installed in the mechanism case or convergence control cabinet of circuit breaker, forms an organic whole with circuit breaker, needn't join the outdoor cabinet of high-protection level separately.
3. switch intelligent interface unit according to claim 1, it is characterized by, described switch intelligent interface unit replaces a large amount of base relay hardware modes with programmable logic device PLC and finishes the electric secondary circuit function of circuit breaker, the module of leaving of described switch intelligent interface unit includes tripping operation, the three-phase large power relay of combined floodgate usefulness, it is A phase tripping relay, B phase tripping relay, C phase tripping relay, A phase closing relay, B phase closing relay, C phase closing relay, described three-phase tripping relay is serially connected with between the positive and negative operating power of circuit breaker with the corresponding breaking coil mutually of circuit breaker respectively, and described three-phase closing relay is serially connected with between the positive and negative operating power of circuit breaker with the corresponding closing coil mutually of circuit breaker respectively; The maintenance return circuit of PLC logic realization circuit breaker, locked loop function and anti-jump loop function.
4. switch intelligent interface unit according to claim 1, it is characterized by, the GOOSE module is supported the model configuration of IEC618560 by resolving IEC61850 mould file and configuration file, has realized the GOOSE communication service among the IEC61850-8-1, possesses the interoperability with other producer's equipment.
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| CN2009102375595A CN101702539B (en) | 2009-11-19 | 2009-11-19 | Switch intelligent interface unit applied to digitized substation |
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| CN2009102375595A CN101702539B (en) | 2009-11-19 | 2009-11-19 | Switch intelligent interface unit applied to digitized substation |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101895152A (en) * | 2010-06-07 | 2010-11-24 | 国电南瑞科技股份有限公司 | Intelligent interface device of digital transformer substation switch |
| CN102684135A (en) * | 2012-05-31 | 2012-09-19 | 南京深科博业电气股份有限公司 | Method for protecting relay in operation interface of breaker |
| CN105515204A (en) * | 2016-01-29 | 2016-04-20 | 山东鲁能智能技术有限公司 | Intelligent transformer substation simulation switch, equipment and method |
| CN106451796A (en) * | 2016-12-09 | 2017-02-22 | 中国能源建设集团湖南省电力设计院有限公司 | Secondary control system integrating multiple control ways |
| 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 |
| CN111799750A (en) * | 2020-06-23 | 2020-10-20 | 广西电网有限责任公司电力科学研究院 | Protection system for three-phase inconsistency of circuit breaker body and implementation method thereof |
| CN112710952A (en) * | 2020-12-17 | 2021-04-27 | 贵州电网有限责任公司 | Intelligent switch debugging system and testing method thereof |
| CN113160491A (en) * | 2021-04-07 | 2021-07-23 | 威胜电气有限公司 | Primary and secondary integration high-voltage charge control switching-on and switching-off control method |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201286030Y (en) * | 2008-06-11 | 2009-08-05 | 谢维 | 10kV complicated electricity supply and distribution control system based on PLC |
| CN101465564B (en) * | 2009-01-09 | 2011-10-05 | 北京天能继保电力科技有限公司 | In-situ digitalization method and apparatus for transforming plant primary equipment |
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2009
- 2009-11-19 CN CN2009102375595A patent/CN101702539B/en active Active
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101895152B (en) * | 2010-06-07 | 2012-09-12 | 国电南瑞科技股份有限公司 | Intelligent interface device of digital transformer substation switch |
| CN101895152A (en) * | 2010-06-07 | 2010-11-24 | 国电南瑞科技股份有限公司 | Intelligent interface device of digital transformer substation switch |
| CN102684135A (en) * | 2012-05-31 | 2012-09-19 | 南京深科博业电气股份有限公司 | Method for protecting relay in operation interface of breaker |
| CN102684135B (en) * | 2012-05-31 | 2015-11-04 | 南京深科博业电气股份有限公司 | A kind of guard method of circuit-breaker operation interface repeat circuit |
| CN105515204B (en) * | 2016-01-29 | 2019-04-09 | 山东鲁能智能技术有限公司 | A kind of intelligent substation Artificial switch, device and method |
| CN105515204A (en) * | 2016-01-29 | 2016-04-20 | 山东鲁能智能技术有限公司 | Intelligent transformer substation simulation switch, equipment and method |
| CN106451796A (en) * | 2016-12-09 | 2017-02-22 | 中国能源建设集团湖南省电力设计院有限公司 | Secondary control system integrating multiple control ways |
| 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 |
| CN111799750A (en) * | 2020-06-23 | 2020-10-20 | 广西电网有限责任公司电力科学研究院 | Protection system for three-phase inconsistency of circuit breaker body and implementation method thereof |
| CN111799750B (en) * | 2020-06-23 | 2022-08-16 | 广西电网有限责任公司电力科学研究院 | Protection system for three-phase inconsistency of circuit breaker body and implementation method thereof |
| CN112710952A (en) * | 2020-12-17 | 2021-04-27 | 贵州电网有限责任公司 | Intelligent switch debugging system and testing method thereof |
| CN113160491A (en) * | 2021-04-07 | 2021-07-23 | 威胜电气有限公司 | Primary and secondary integration high-voltage charge control switching-on and switching-off control method |
| CN113160491B (en) * | 2021-04-07 | 2022-07-08 | 威胜电气有限公司 | Primary and secondary integration high-voltage charge control switching-on and switching-off control method |
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| Publication number | Publication date |
|---|---|
| CN101702539B (en) | 2012-01-11 |
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