CN108318769A - A kind of intelligent substation busbar protective device pressing plate state alarm method and device - Google Patents
A kind of intelligent substation busbar protective device pressing plate state alarm method and device Download PDFInfo
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- CN108318769A CN108318769A CN201810341956.6A CN201810341956A CN108318769A CN 108318769 A CN108318769 A CN 108318769A CN 201810341956 A CN201810341956 A CN 201810341956A CN 108318769 A CN108318769 A CN 108318769A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/22—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for distribution gear, e.g. bus-bar systems; for switching devices
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- General Physics & Mathematics (AREA)
- Emergency Alarm Devices (AREA)
- Supply And Distribution Of Alternating Current (AREA)
Abstract
The present invention relates to a kind of intelligent substation busbar protective device pressing plate state alarm method and device, this method differentiates whether pressing plate state is inconsistent in terms of two：On the one hand it is that the angle into soft pressing plate information is opened based on the soft pressing plate of interval reception, interval disconnecting link position, the soft pressing plate of interval trip protection, interval start failure protection；On the other hand it is to open to receive soft pressing plate not corresponding angle into soft pressing plate and interval based on the soft pressing plate of interval trip protection, interval start failure protection.The protective device includes alarm module, time delay module and message sending module and the first judgment module and the second judgment module, for differentiating above-mentioned two in terms of pressing plate state and send out warning information.The present invention can intelligent measurement go out the throwing of busbar protective device pressing plate and move back exception has occurred, and provide pressing plate state inconsistent message, operation maintenance personnel prompted to safeguard in time.
Description
Technical field
The present invention relates to electric power O＆M technical field more particularly to a kind of intelligent substation busbar protective device pressing plate states
Intelligent measurement alarm method and device belong to Relay Protection Technology in Power System domain technology field.
Background technology
The key link that intelligent substation is built as national " intelligent grid ", in recent years in New technical use, related rule
Model standard formulation execution, construction scale etc. are developed rapidly.With measure and control device " four unifications " specification, protective device
" nine unifications " specification implementation, eliminate the differentiation of each producer's observing and controlling and protective device model file, for realize intelligence
Substation bus bar protective device pressing plate condition intelligent detection alarming logic provides the foundation.
Protective device lays particular emphasis on protection philosophy and protects the research in the communication technology, few protective device O＆M sides at present
The research in face, for electric system in recent years occur misoperation caused by protective device tripping, malfunction the phenomenon that, herein
Specially it is directed to the pressing plate management of busbar protective device, it is proposed that a kind of " intelligent substation busbar protective device pressing plate condition intelligent
The method of detection alarming logic ", promotes the O＆M intelligent level of intelligent substation.
Invention content
The technical problem to be solved by the present invention is to：Protective device lays particular emphasis on protection philosophy and protects in the communication technology at present
It studies, the research in terms of few protective device O＆Ms, and the caused protection of misoperation that electric system in recent years occurs
The phenomenon that device tripping, malfunction, frequently occurs to solve above-mentioned technical problem, it is proposed that a kind of intelligent substation bus protection dress
Set pressing plate state alarm method and device.
The technical solution adopted by the present invention to solve the technical problems is：
First, the present invention proposes a kind of intelligent substation busbar protective device pressing plate state alarm method,
The inconsistent alarm of pressing plate, which is exported, by the inconsistent soft pressing plate of alarm of pressing plate puts into signal；
Soft pressing plate output gap reception signal is received by being spaced；
Mother's I disconnecting link position signal is obtained by mother's I disconnecting link position pressing plate；
Mother's II disconnecting link position signal is obtained by mother's II disconnecting link position pressing plate；
Pass through the soft pressing plate output protection trip signal of trip protection；
It is opened by start failure protection and is opened into signal into soft pressing plate output start failure protection；
When busbar main electrical scheme is double-bus, double female single segmentations, double female double partition running modes,
Meet the following conditions then to be alerted：
The output valve of the soft pressing plate of the inconsistent alarm of pressing plate is 1, and one of meets a and b conditions and one of c and d conditions：
A. the output valve that the interval receives soft pressing plate is 1, and mother's I disconnecting link position pressing plate and mother's II disconnecting link position
The output valve for setting pressing plate is 0；
B. the output valve that the interval receives soft pressing plate is 0 and mother's I disconnecting link position pressing plate and mother's II disconnecting link position
The output valve for setting at least one in pressing plate is 0；
C. the output valve that the interval receives soft pressing plate is 1, and the soft pressing plate of the trip protection is opened with the start failure protection
It is 0 to enter at least one output valve in soft pressing plate；
D. the output valve that the interval receives soft pressing plate is 0, and the soft pressing plate of the trip protection is opened with the start failure protection
It is 1 to enter the output valve in soft pressing plate；
When busbar main electrical scheme is single busbar, single mother partition, three segmentation of single mother, the 3/2 breaker method of operation；
Meet the following conditions then to be alerted：
One of it is 1 that the inconsistent alarm of pressing plate, which puts into the output valve of soft pressing plate, and meet e and f conditions：
E. the output valve that the interval receives soft pressing plate is 1, and the soft pressing plate of the trip protection is opened with the start failure protection
It is 0 to enter at least one output valve in soft pressing plate；
F. the output valve that the interval receives soft pressing plate is 0, and the soft pressing plate of the trip protection is opened with the start failure protection
It is 1 to enter the output valve in soft pressing plate.
The present invention also provides a kind of intelligent substation busbar protective device pressing plate state alarm device, the alarm device packets
It includes：
The inconsistent alarm of pressing plate for exporting the inconsistent alarm input signal of pressing plate puts into soft pressing plate；
The interval that signal is received for output gap receives soft pressing plate；
Mother's I disconnecting link position pressing plate for obtaining mother's I disconnecting link position pressing plate signal；
Mother's II disconnecting link position pressing plate for obtaining mother's II disconnecting link position pressing plate signal；
The soft pressing plate of trip protection for monitoring trip protection signal；
It is opened into soft pressing plate for exporting the start failure protection that start failure protection is opened into signal；
Further include the first judgment module and the second judgment module；
First judgment module is used to press the output valve of mother's I disconnecting link position pressing plate and mother's II disconnecting link position
The output valve of plate carries out the output after nonequivalence operation with the output valve for being spaced the soft pressing plate of reception again after carrying out inclusive-OR operation
The output valve that value puts into soft pressing plate with the inconsistent alarm of the pressing plate again carries out AND operation and exports output valve；
Second judgment module with the start failure protection for opening the output valve of the soft pressing plate of the trip protection into soft
Pressing plate carries out nonequivalence operation and then and the pressing plate with the output valve for being spaced the soft pressing plate of reception again after carrying out inclusive-OR operation
The output valve that inconsistent alarm puts into soft pressing plate carries out AND operation and exports output valve；
Further include alarm module,
When busbar main electrical scheme is double-bus, double female single segmentations, double female double partition running modes, mould is judged described first
When at least one output valve is 1 in block and second judgment module, the alarm device sends out alarm；
When busbar main electrical scheme is single busbar, single mother partition, three segmentation of single mother, the 3/2 breaker method of operation, described the
When at least one output valve is 1 in two judgment modules, the alarm device sends out alarm.
Further, further include time delay module and message sending module, the time delay module to message for sending mould
It when block sends information or is delayed a period of time in message sending module feedback information, the message sending module is for sending
Warning information.
Further, be delayed 1000ms when sending information to message sending module.
Further, be delayed 300ms when message sending module feedback information.
The beneficial effects of the invention are as follows：Can intelligent measurement go out the throwing of busbar protective device pressing plate and move back exception has occurred, and carry
The inconsistent message of pressure supply board status prompts operation maintenance personnel to safeguard in time.
Description of the drawings
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1 is double-bus in the embodiment of the present invention, double female list segmentations, double female double segmentation main electrical scheme intelligent substation busbares guarantors
The inconsistent differentiation logic chart of protection unit pressing plate；
Fig. 2 is single busbar in the embodiment of the present invention, single mother partition, three segmentation of single mother, 3/2 breaker main electrical scheme intelligence power transformation
The inconsistent differentiation logic chart of busbar protective device pressing plate of standing；
Fig. 3 is the schematic composition figure of alarm module in protection equipment for transformer in the embodiment of the present invention.
Reference numeral in figure is：
The intervals 201- receive soft pressing plate, and mother's 202-I disconnecting link position pressing plate, mother's 203-I disconnecting link position pressing plate, 204- pressing plates are not
Consistent alarm puts into soft pressing plate, the soft pressing plate of 205- trip protections, and 206- start failure protections are opened into soft pressing plate, 207- first or door,
208- first and door, the first XOR gates of 209-, the second XOR gates of 210-, 211- second and door, 212- second and door, 213- second
Or door, 3- alarm modules, 301- time delay modules, 302- message sending modules, the first judgment modules of 303-, 304- second judge mould
Block.
Specific implementation mode
In conjunction with the accompanying drawings, the present invention is further explained in detail.These attached drawings are simplified schematic diagram, only with
Illustration illustrates the basic structure of the present invention, therefore it only shows the composition relevant to the invention.
Fig. 1 is double-bus in the embodiment of the present invention, double female list segmentations, double female double segmentation main electrical scheme intelligent substation busbares guarantors
The inconsistent differentiation logic chart of protection unit pressing plate；
It is distinguished according to whether busbar protective device receives interval disconnecting link location information, two classes can be divided into, the first kind is
Double-bus, double female single segmentations, double female double segmentation main electrical scheme busbar protective devices need to receive interval busbar disconnecting link information with determination
Small difference differential current computing mode, another kind of is single busbar, single mother partition, three segmentation of single mother, 3/2 breaker main electrical scheme bus protection dress
Interval busbar disconnecting link information need not be received by setting, because its interval branch mounting busbar is fixed, small difference differential current computing need not be adopted
Collection interval busbar disconnecting link information state.For these reasons, the present embodiment divides two categories respectively to busbar protective device pressing plate
The inconsistent differentiation logic of state is stated.
Interval receives soft pressing plate：Refer to whether bus protection receives interval (line segregation, main transformer interval, mother interval)
The pressing plate of one switching behavior of the analog quantity sampling (SV) that combining unit is sent, if corresponding interval pressing plate input, busbar are protected
Shield just receives the SV at the interval, and participates in bus protection calculating, although having exited can receive, the SV data at the interval are not
Bus protection is participated in calculate；
Start failure protection is opened into soft pressing plate：For judging whether bus protection receives the start failure protection that interval protection is outputed
The pressing plate of one switching behavior of GOOSE signals, if pressing plate input bus protection can receive interval send over open
Dynamic failure GOOSE signals, although having exited interval protection is sending always this signal, bus protection is not receive not handling；
Embodiment 1
It present embodiments provides a kind of for intelligent substation busbar protective device pressing plate state alarm method：
As shown in Figure 1, double-bus, double female lists are segmented, the intelligent substation busbar protective device of double female double segmentation main electrical schemes
Receiving information has interval busbar disconnecting link location information, and it is soft that the soft pressing plate of bus protection has interval to receive soft pressing plate, interval trip protection
Pressing plate, interval start failure protection are opened into soft pressing plate, refer to that the SV of interval branch receives soft pressing plate every the soft pressing plate of reception among it, this
The inconsistent method of discrimination of busbar protective device pressing plate of the method for operation is：
Condition 1：Judge that interval disconnecting link position and interval receive soft pressing plate and do not correspond to situation.Not corresponding to situation has following two
Kind：1. being spaced arbitrary disconnecting link to receive soft pressing plate at conjunction position, the interval and exit；2. two disconnecting links in interval all connect at a point position, the interval
Receive soft pressing plate input.
Condition 2：Judge that interval trip protection and start failure protection are opened and does not correspond to situation into soft pressing plate and the interval soft pressing plate of reception.
Do not correspond to situation have it is following two：1. the intervals XX trip protection and start failure protection open all put into soft pressing plate, the interval receive it is soft
Pressing plate exits；The intervals XX trip protection and start failure protection open into soft pressing plate any one exit (or all exiting), the interval receive it is soft
Pressing plate is put into.
All by " the inconsistent alarm of pressing plate puts into soft pressing plate " control, the inconsistent alarm of pressing plate puts into soft pressure for condition 1 and condition 2
When plate is put into, the judgement of condition 1 and condition 2 is just worked, when the soft pressing plate of the inconsistent alarm input of pressing plate exits, condition 1 and item
The judgement of part 2 does not work, i.e., when any one of condition 1 or condition 2 meet, alarm device delay 1s sends out warning information, simultaneously
It drives " operation exception ", puts abnormal lamp, above send backstage.
Specifically, in conjunction with alarm logic chart 1, when interval, which receives soft pressing plate 201, to be put into, mother's I disconnecting link position pressing plate 202
When being exited with mother's II disconnecting link position pressing plate 203, first or the output valve of door 207 be 0, the output valve of the first XOR gate 209 is
1, when it is 1 that the inconsistent alarm of pressing plate, which puts into the output valve of soft pressing plate 204, second and the output valve of door 211 are 1, while second
Or the output valve of door 213 is also 1, at this point, alarm device protection delay 1s reports " the inconsistent alarm of pressing plate ", while driving " operation
It is abnormal ", the protective device point exception lamp above send backstage；When interval, which receives soft pressing plate 201, to be exited, mother's I disconnecting link position pressing plate
202 and mother's II disconnecting link position pressing plate 203 at least one put into when, first or door 207 output valve be 1, the first XOR gate
207 output valve is 1, when it is 1 that the inconsistent alarm of pressing plate, which puts into the output valve of soft pressing plate 204, second with the output valve of door 211
Be 1, while second or the output valve of door 213 also be 1, at this point, alarm device protection delay 1s report " the inconsistent alarm of pressing plate ", together
When drive " operation exception ", the protective device point exception lamp, above send backstage.
Fig. 2 is single busbar in the embodiment of the present invention, single mother partition, three segmentation of single mother, 3/2 breaker main electrical scheme intelligence power transformation
The inconsistent differentiation logic chart of busbar protective device pressing plate of standing；
Another specific embodiment of the present invention is as follows：As shown in Fig. 2, single busbar, single mother partition, three segmentation of single mother, 3/2
The intelligent substation busbar protective device of breaker main electrical scheme, which need not receive information, interval busbar disconnecting link location information, busbar
Protect soft pressing plate to there is interval to receive soft pressing plate, the soft pressing plate of interval trip protection, interval start failure protection to open into soft pressing plate, among it every
It receives soft pressing plate and refers to that the SV of interval branch receives soft pressing plate, the inconsistent differentiation of busbar protective device pressing plate of this method of operation
Logic is：
Judge that interval trip protection and start failure protection are opened and does not correspond to situation into soft pressing plate and the interval soft pressing plate of reception.It does not correspond to
Situation has two kinds of situations：1. interval trip protection and start failure protection open all put into soft pressing plate, the soft pressing plate of interval reception
It exits；2. interval trip protection and start failure protection are opened, into soft pressing plate, any one exits (or all exiting), the interval receives soft pressing plate
Input.
Above-mentioned Rule of judgment is by " soft pressing plate is moved back in the inconsistent alarm throwing of pressing plate " control, i.e., full when above-mentioned condition meets, alarm
Device delay 1s reports " the inconsistent alarm of pressing plate ", while " operation exception " is driven, abnormal lamp is put, backstage is above sent.
Specifically, in conjunction with alarm logic chart 2, when interval, which receives soft pressing plate 201, to be put into, the soft pressing plate of trip protection 205
It is opened with start failure protection when being exited into soft pressing plate 206, first and the output valve of door 208 are 0, the output valve of the second XOR gate 210
It is 1, when it is 1 that the inconsistent alarm of pressing plate, which puts into the output valve of soft pressing plate 204, the output valve of third and door 212 is 1, while the
Three or door 212 output valve also be 1, at this point, alarm device protection delay 1s report " the inconsistent alarm of pressing plate ", while drive " fortune
Row is abnormal ", the protective device point exception lamp above send backstage；When interval, which receives soft pressing plate 201, to be exited, the soft pressure of trip protection
Plate 205 and start failure protection are opened when being put into soft pressing plate 206, and first and the output valve of door 208 are 1, the second XOR gate 210 it is defeated
It is 1 to go out value, and when it is 1 that the inconsistent alarm of pressing plate, which puts into the output valve of soft pressing plate 204, the output valve of third and door 212 is 1, together
When third or door 212 output valve also be 1, at this point, alarm device protection delay 1s report " the inconsistent alarm of pressing plate ", drive simultaneously
" operation exception ", the protective device point exception lamp above send backstage.
Embodiment 2
A kind of intelligent substation busbar protective device pressing plate state alarm device, the alarm device include：
The inconsistent alarm of pressing plate for exporting the inconsistent alarm input signal of pressing plate puts into soft pressing plate；
The interval that signal is received for output gap receives soft pressing plate；
Mother's I disconnecting link position pressing plate for obtaining mother's I disconnecting link position pressing plate signal；
Mother's II disconnecting link position pressing plate for obtaining mother's II disconnecting link position pressing plate signal；
The soft pressing plate of trip protection for monitoring trip protection signal；
It is opened into soft pressing plate for exporting the start failure protection that start failure protection is opened into signal；
Further include the first judgment module and the second judgment module；
First judgment module is used to press the output valve of mother's I disconnecting link position pressing plate and mother's II disconnecting link position
The output valve of plate carries out the output after nonequivalence operation with the output valve for being spaced the soft pressing plate of reception again after carrying out inclusive-OR operation
The output valve that value puts into soft pressing plate with the inconsistent alarm of the pressing plate again carries out AND operation and exports output valve；
Second judgment module with the start failure protection for opening the output valve of the soft pressing plate of the trip protection into soft
Pressing plate carries out nonequivalence operation and then and the pressing plate with the output valve for being spaced the soft pressing plate of reception again after carrying out inclusive-OR operation
The output valve that inconsistent alarm puts into soft pressing plate carries out AND operation and exports output valve；
Further include alarm module, time delay module and message sending module,
When busbar main electrical scheme is double-bus, double female single segmentations, double female double partition running modes, mould is judged described first
When at least one output valve is 1 in block and second judgment module, the alarm device sends out alarm；
When busbar main electrical scheme is single busbar, single mother partition, three segmentation of single mother, the 3/2 breaker method of operation, described the
When at least one output valve is 1 in two judgment modules, the alarm device sends out alarm.
The time delay module is used for when sending information to message sending module or in message sending module feedback information
When delay a period of time, the message sending module is for sending a warning message.It is delayed when sending information to message sending module
1000ms.Be delayed 300ms when message sending module feedback information.
Fig. 3 is the schematic composition figure of alarm module in protection equipment for transformer in the embodiment of the present invention.
It includes that time delay module 301 and message send mould that the protective device, which further includes alarm module 3, the alarm module 3,
Block 302 and the first judgment module 303, the second judgment module 304.The design delay of the time delay module 301 1s transmits and is delayed
0.3s is returned, and is in order to avoid frequently transmitting the processing load and mistake that increase the anti-mis-logical of monitoring system in operating process.
It is enlightenment with above-mentioned desirable embodiment according to the present invention, through the above description, relevant staff is complete
Various changes and amendments can be carried out without departing from the scope of the technological thought of the present invention' entirely.The technology of this invention
Property range is not limited to the contents of the specification, it is necessary to determine its technical scope according to right.
Claims (5)
1. a kind of intelligent substation busbar protective device pressing plate state alarm method, which is characterized in that
The inconsistent alarm of pressing plate, which is exported, by the inconsistent soft pressing plate of alarm of pressing plate puts into signal；
Soft pressing plate output gap reception signal is received by being spaced；
Mother's I disconnecting link position signal is obtained by mother's I disconnecting link position pressing plate；
Mother's II disconnecting link position signal is obtained by mother's II disconnecting link position pressing plate；
Pass through the soft pressing plate output protection trip signal of trip protection；
It is opened by start failure protection and is opened into signal into soft pressing plate output start failure protection；
When busbar main electrical scheme is double-bus, double female single segmentations, double female double partition running modes,
Meet the following conditions then to be alerted：
The output valve of the soft pressing plate of the inconsistent alarm of pressing plate is 1, and one of meets a and b conditions and one of c and d conditions：
A. the output valve that the interval receives soft pressing plate is 1, and mother's I disconnecting link position pressing plate and mother's II disconnecting link position pressure
The output valve of plate is 0；
B. the output valve that the interval receives soft pressing plate is 0 and mother's I disconnecting link position pressing plate and mother's II disconnecting link position are pressed
The output valve of at least one in plate is 0；
C. the output valve that the interval receives soft pressing plate is 1, and the soft pressing plate of the trip protection is opened with the start failure protection into soft
At least one output valve is 0 in pressing plate；
D. the output valve that the interval receives soft pressing plate is 0, and the soft pressing plate of the trip protection is opened with the start failure protection into soft
Output valve in pressing plate is 1；
When busbar main electrical scheme is single busbar, single mother partition, three segmentation of single mother, the 3/2 breaker method of operation；
Meet the following conditions then to be alerted：
One of it is 1 that the inconsistent alarm of pressing plate, which puts into the output valve of soft pressing plate, and meet e and f conditions：
E. the output valve that the interval receives soft pressing plate is 1, and the soft pressing plate of the trip protection is opened with the start failure protection into soft
At least one output valve is 0 in pressing plate；
F. the output valve that the interval receives soft pressing plate is 0, and the soft pressing plate of the trip protection is opened with the start failure protection into soft
Output valve in pressing plate is 1.
2. a kind of intelligent substation busbar protective device pressing plate state alarm device, which is characterized in that the alarm device includes：
The inconsistent alarm of pressing plate for exporting the inconsistent alarm input signal of pressing plate puts into soft pressing plate；
The interval that signal is received for output gap receives soft pressing plate；
Mother's I disconnecting link position pressing plate for obtaining mother's I disconnecting link position pressing plate signal；
Mother's II disconnecting link position pressing plate for obtaining mother's II disconnecting link position pressing plate signal；
The soft pressing plate of trip protection for monitoring trip protection signal；
It is opened into soft pressing plate for exporting the start failure protection that start failure protection is opened into signal；
Further include the first judgment module and the second judgment module；
First judgment module is used for the output valve of mother's I disconnecting link position pressing plate and mother's II disconnecting link position pressing plate
Output valve carries out the output valve after nonequivalence operation again with the output valve for being spaced the soft pressing plate of reception again after carrying out inclusive-OR operation
The output valve that soft pressing plate is put into the inconsistent alarm of the pressing plate carries out AND operation and exports output valve；
Second judgment module is used to open the output valve of the soft pressing plate of the trip protection and the start failure protection into soft pressing plate
The output valve progress nonequivalence operation of soft pressing plate is received with the interval again after carrying out inclusive-OR operation and then is differed with the pressing plate
The output valve that alarm puts into soft pressing plate is caused to carry out AND operation and export output valve；
Further include alarm module,
When busbar main electrical scheme is double-bus, double female single segmentations, double female double partition running modes, in first judgment module and
When at least one output valve is 1 in second judgment module, the alarm device sends out alarm；
When busbar main electrical scheme is single busbar, single mother partition, three segmentation of single mother, the 3/2 breaker method of operation, sentence described second
When at least one output valve is 1 in disconnected module, the alarm device sends out alarm.
3. alarm device according to claim 2, which is characterized in that further include time delay module and message sending module, institute
Time delay module is stated for being delayed one section when sending information to message sending module or in message sending module feedback information
Time, the message sending module is for sending a warning message.
4. alarm device according to claim 3, which is characterized in that be delayed when sending information to message sending module
1000ms。
5. alarm device according to claim 3, which is characterized in that be delayed 300ms when message sending module feedback information.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810341956.6A CN108318769B (en) | 2018-04-17 | 2018-04-17 | Pressing plate state warning method and device for bus protection device of intelligent substation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810341956.6A CN108318769B (en) | 2018-04-17 | 2018-04-17 | Pressing plate state warning method and device for bus protection device of intelligent substation |
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| CN108318769B CN108318769B (en) | 2020-08-28 |
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Cited By (1)
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| 郑晓琼 等: "智能变电站软压板集中管控系统", 《农村电气化》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109327009A (en) * | 2018-08-22 | 2019-02-12 | 贵州电网有限责任公司 | The anti-miscarrying method of risky pressing plate is directed to when a kind of breaker protection regular inspection |
| CN109327009B (en) * | 2018-08-22 | 2020-01-07 | 贵州电网有限责任公司 | Method for preventing misoperation of dangerous pressing plate during circuit breaker protection scheduled inspection |
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| CN108318769B (en) | 2020-08-28 |
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