CN108666991A - A kind of no-delay Graded coordination method of feeder automation intelligent on the spot and application - Google Patents
A kind of no-delay Graded coordination method of feeder automation intelligent on the spot and application Download PDFInfo
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- CN108666991A CN108666991A CN201810628773.2A CN201810628773A CN108666991A CN 108666991 A CN108666991 A CN 108666991A CN 201810628773 A CN201810628773 A CN 201810628773A CN 108666991 A CN108666991 A CN 108666991A
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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
- H02H7/26—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/02—Details
- H02H3/06—Details with automatic reconnection
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Abstract
The present invention relates to a kind of no-delay Graded coordination method of intelligent on the spot feeder automation and applications; relay protection " being isolated on the spot " and the advantage of feeder automation " self- recoverage " are combined; preferentially it is isolated on the spot by the relay protection function of line feed terminals in line failure, maximizes and reduce scope of power outage.If transforming plant protecting time delays nargin is small or no-delay nargin, it is difficult to form delay Graded coordination with line feed terminals to ensure protective seletion.Interior power supply of standing should not be influenced by the troubleshooting Pattern completion failure treatment in situ intelligent on the spot of line feed terminals at this time, interior protection of standing is only as the back-up protection of protection for feed line.If the instantaneous fast tripping protection of input, should protect to chopped-off head block switch in standing, is formed and coordinated by protection domain.
Description
Technical field
The present invention relates to wiring fault maintenance field more particularly to a kind of feeder automation intelligent on the spot are no-delay differential
Fitting method and pattern application.
Background technology
Feeder automation is to utilize automation equipment or system, monitors the operation conditions of power distribution network, finds power distribution network in time
Failure carries out the power supply of fault location, isolation and recovery to non-faulting region.In recent years, for different types of power supply area,
Intelligent power distribution network construction uses differentiation principle, feeder automation to realize that concentrated and on the spot pattern formula can be used in troubleshooting.
Type feeder automation does not depend on communication on the spot, and troubleshooting is completed by equipment autoprotection or time cooperation.Traditional coincidence
Device formula feeder automation is divided into voltage-time type, voltage and current time type isotype, and switching cooperation substation with line load goes out
Line breaker.
Independent of main website and communication, reliable in action, processing are rapid for the realization of automatic circuit formula feeder automation, adapt to compared with
For rugged environment.Voltage-time type is the most commonly seen formula feeder automation pattern of automatic circuit on the spot, passes through switch " no pressure point
The working characteristics cooperation substation outlet switch of lock, incoming call time-delay closing " is secondary to close a floodgate to realize, primary combined floodgate isolated fault area
Between, secondary combined floodgate restores the power supply of non-faulting section.According to different application demands, electric current is increased on the basis of voltage-time type
Assistant criteria forms the forking models such as voltage and current time type and Adaptive synthesis type.
At this stage, many B, C class power supply areas in China, which are promoted, tries out type feeder automation on the spot, but is met in extension process
To bottleneck, main cause is that current rack of distribution is difficult to the impact for bearing repeatedly to overlap.
Power distribution network is multi-point and wide-ranging, running environment is complicated and Frequent Troubles.It is how fast after short trouble occurs for distribution line
Speed positioning, isolated fault, it is the target to be realized of feeder automation to restore non-faulting block supply.And the automatic circuit promoted at present
There are following technical problems for formula feeder automation：
(1) it will all cause substation's outlet switch to trip after distribution line any point is broken down, that is, cause primary complete
Line has a power failure, and expands power failure area, reduces power supply reliability；
(2) when distribution line permanent fault, substation's outlet switch, which must complete secondary coincidence, can just restore electricity, i.e., non-event
Barrier region can experience to have a power failure in short-term twice；
(3) if when nearly leading-out terminal breaks down, short circuit current is larger, it is secondary overlap to transforming plant primary equipment impact compared with
Greatly, it reduces the service life.
Invention content
The purpose of the invention is to overcome the deficiencies in the prior art, a kind of feeder automation intelligent on the spot is obtained without prolonging
When Graded coordination method, relay protection " on the spot be isolated " and the advantage of feeder automation " self- recoverage " are combined, in circuit
Preferentially it is isolated on the spot by the relay protection function of line feed terminals when breaking down, maximizes and reduce scope of power outage.If substation
Guard time be delayed small nargin or no-delay nargin when, then be difficult to form delay Graded coordination with line feed terminals to ensure protection choosing
Selecting property.Interior confession of standing should not be influenced by the troubleshooting Pattern completion failure treatment in situ intelligent on the spot of line feed terminals at this time
Electricity, interior protection of standing is only as the back-up protection of protection for feed line.If the instantaneous fast tripping protection of input in standing should be protected to chopped-off head segmentation and be opened
At pass, is formed and coordinated by protection domain.
The present invention is achieved through the following technical solutions：
A kind of no-delay Graded coordination method of feeder automation intelligent on the spot, specifically comprises the following steps：
Step 1: when circuit any point is broken down, by upstream line feed terminals preferential isolation fault section, and do not draw
Rise transforming plant protecting separating brake, if upstream feed-line terminal protection loses selectivity, will there are two or multiple switch simultaneously protect separating brake；
Step 2: being introduced into the X times after feed-line terminal protection separating brake, meet if there is ballast to close condition, switch one after the X times
Secondary multiple action；
Step 3: entering the fault detect Y times after the X times, the non-separating brake of switch thinks successful reclosing in the Y times, and failure is not
Switch separating brake thinks reclosing failure in this grade, Y times, and failure is in this grade；
If Step 4: reclosing failure, line feed terminals are latched in gate-dividing state, if successful reclosing, are entered the Z times and are kept
"on" position is latched separating brake in short-term, failure also no longer separating brake is detected in the Z times；
Wherein, X is the time of coincidence when having calendering, and acquiescence 6s can be adjusted；Y is failure detection time, and acquiescence 4s can be adjusted；Z
To be latched opening time in short-term, adjusted according to X times and Protective levels；Feed-line terminal protection actuation time is dynamic for overcurrent protection
Make the time, is adjusted according to station default value.
Further, described to have ballast to close condition as protection separating brake, higher level has pressure, reclosing to throw, and X has pressure in the time.
Further, operating time of protection is less than or equal to 300ms in standing, and Z time settings are more than afterbody switch
Failure detection time.
Further, when the instantaneous fast tripping protection definite value of distribution line escapes this grade of feedback under distribution system maximum operational mode
When the line to line fault current calibration of line end, chopped-off head switch is layouted 1.5 kilometers away from switch in station of spacing or more and to be increased step by step
It layouts spacing.
A kind of application of the no-delay Graded coordination method of feeder automation intelligent on the spot, is opened for the outlet of 10kV substations
Instantaneous fast tripping protection is exited in pass, specific as follows：
10kV substations outlet switch exits delay fast tripping protection, instantaneous fast tripping protection definite value 2800A 0ms, over current protection
Protect definite value be 440A 300ms, adjusted by the no-delay Graded coordination method of intelligent feeder automation on the spot, to feeder line
After terminal carries out protection fixed value adjusting, 10kV circuits realize the no-delay differential operational mode of intelligent feeder automation on the spot, right
Circuit backbone, branch line simulate permanent short failure, instantaneous short-circuit failure respectively, and intelligent fault treating procedure is such as on the spot
Under：
S1, permanent short failure, fault current 1280A, the separate AB phases of failure occurs in the downstreams backbone FD3.Backbone
FD2 is switched and I section of protection definite value of FD3 switches is respectively 1100A, 800A, is met current start condition and is started timing, backbone
III sections of FD1, substation CX switches protection definite values are 360A, 400A, meet current start condition and start timing:
After S1-A, 0ms, FD2, FD3 switch protection separating brake isolated fault are as shown in figure 4, backbone FD1, substation at this time
III sections of protections of switch return；
S1-B：FD2 switch higher levels have electricity, satisfaction to have ballast conjunction entry condition to enter X time timing, and reclosing is dynamic after 7s
Make, since failure is not after FD2, failure is not detected in the Y times, successful reclosing is simultaneously maintained under "on" position, in the Z times not
Separating brake again；
S1-C, FD3 switch higher level have electricity, satisfaction to have ballast conjunction entry condition to enter X time timing, and reclosing is dynamic after 7s
Make, since failure is after FD3, failure is detected in the Y times, reclosing is in failure and is latched under gate-dividing state；
S2, instantaneous short-circuit failure, fault current 706A, the separate BC phases of failure occurs in FZ3 branch lines.Branch line FZ2 switches I
Section protection definite value is 600A, backbone FD1, FD2 and III sections of substation CX switches protect definite values be respectively 360A, 280A,
440A meets current start condition and starts timing:
After S2-A, 0ms, FZ2 switchs isolated fault on the spot as shown in fig. 7, backbone FD1, FD2 and substation CX are opened at this time
III sections of protections are closed to return；
S2-B, FZ2 switch higher level have electricity, satisfaction to have ballast conjunction entry condition to enter X time timing, and reclosing is dynamic after 7s
Make, since failure is not detected in the failure vanishes Y times, successful reclosing restores electricity.
Compared with prior art, the present invention has following usefulness：
If 1) substation is no-delay, by protection domain formed protection cooperation, i.e., instantaneous fast tripping protection only protect this grade with
Meet protective seletion requirement, non-faulting region has a power failure less, maximizes and reduces power failure area, improves power supply reliability；
2) if there are short delays for substation, two-stage delay Graded coordination is formed with substation, FD1 downstream faults do not cause to become
Power station is bypassed the immediate leadership tripping, can all substation be replaced to carry out Fault Isolation and coincidence per level-one；
3) single shot reclosing is only configured, avoids repeatedly overlapping the impact for bringing a rack, while by once overlapping
Restore transient fault.
4) higher level protection as this grade protect back-up protection, if this grade of shielding failure, back-up protection can still complete every
From failure and self- recoverage.
Description of the drawings
Fig. 1 is two-stage electrode difference protection cooperation schematic diagram in the embodiment of the present invention；
Fig. 2 is intelligent no-delay Graded coordination schematic diagram on the spot in the embodiment of the present invention；
Fig. 3 is that intelligent no-delay electrode difference protection matching timing logic illustration is intended on the spot in the embodiment of the present invention；
Fig. 4 is No. 2 block switch FD2 in the embodiment of the present invention, No. 3 block switch FD3 protect separating brake isolated fault state
Schematic diagram；
Fig. 5 be in the embodiment of the present invention No. 1 block switch FD1 reclosing success in short-term in no longer gate-dividing state signal
Figure；
Fig. 6 is No. 2 block switch FD2 unsuccessful reclosings and the signal being latched under gate-dividing state in the embodiment of the present invention
Figure；
Fig. 7 is the schematic diagram that No. 2 branch switch FZ2 protect separating brake isolated fault state in the embodiment of the present invention；
Fig. 8 be in the embodiment of the present invention No. 1 branch switch FZ1 reclosing success in short-term in no longer gate-dividing state signal
Figure；
Reference numeral is as follows：
CX, outlet switch, FD1, No. 1 block switch, FD2, No. 2 block switches, FD3, No. 3 block switches, FZ1, No. 1 point
Zhi Kaiguan, FZ2, No. 2 branch switches, FZ3, No. 3 branch switches.
Specific implementation mode
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
The no-delay Graded coordination method of intelligent feeder automation requires distribution line all fronts intelligent terminal to be all made of on the spot
Breaker has three-stage overcurrent protection function and has pressure time-delay closing, reclosing in failure locking, separating brake locking in short-term, prolongs
When automatic unlocking function, be provided simultaneously with earth fault judge and defencive function.
Due to no-delay Graded coordination method be suitable for substation delay nargin it is small or do not have delay nargin the case where, because
The cooperation of this be suitable for being delayed fast tripping protection or instantaneous fast tripping protection.When being delayed, nargin is small, will form outlet switch, feeder switch
Two-stage electrode difference protection coordinates as shown in Figure 1, indicated in protection domain at different levels such as figure, will form the cooperation of two level electrode difference protection：
1) downstreams FD1 any point failure does not cause substation to trip, and transforming plant protecting only can be used as back-up protection；
2) downstreams FD1 any point failure completes treatment in situ by line feed terminals, does not need substation's coincidence；
3) primary overlap completes transient fault self- recoverage；
If 4) protection loses selectivity, primary overlap completes non-faulting region self- recoverage.
5) handling result is uploaded into main website after the completion of failure treatment in situ, study and judge fault section and sends alarm letter.
When no-delay nargin, i.e., instantaneous fast tripping protection can not form delay Graded coordination, need to pass through protection domain at this time
Cooperation is formed, ensures protective seletion, as shown in Figure 2：
1) protection circuit overall length, protection domain are not only this grade to instantaneous fast tripping protection；
2) any point failure is preferentially isolated by upstream unique one protection act, is met selectivity and is required；
3) primary overlap completes transient fault self- recoverage；
If 4) protection loses selectivity, primary overlap completes non-faulting region self- recoverage；
5) handling result is uploaded into main website after the completion of failure treatment in situ, studies and judges fault section and sends a warning message.
The no-delay Graded coordination of intelligent feeder automation needs to adjust four kinds of times respectively on the spot：
1. the line feed terminals X times：Time of coincidence when having calendering, acquiescence 7s can be adjusted；
2. the line feed terminals Y times：Failure detection time, acquiescence 5s can be adjusted；
3. the line feed terminals Z times：It is latched opening time in short-term, is adjusted according to X times and Protective levels；
4. feed-line terminal protection actuation time：Overcurrent protection actuation time adjusts according to station default value.
The no-delay Graded coordination sequential principle of intelligent feeder automation is as shown in figure 3, pass through time delays or guarantor on the spot
Shield range ensures that FD1 downstream faults do not cause transforming plant protecting separating brake, i.e., when short trouble occurs for circuit, by fault point upstream
Line feed terminals preferential isolation fault zone, once overlapped by intelligent feeder automation on the spot if protection loses selectivity
Non-faulting region self- recoverage is completed, if while transient fault occurs once overlapping to restore electricity.
The no-delay Graded coordination sequential principle of intelligent feeder automation is as follows on the spot：
1) when short trouble occurs for circuit any point, by upstream line feed terminals preferential isolation fault section, and do not draw
Play transforming plant protecting separating brake；
2) part protective seletion is met by protection domain cooperation, it, will if upstream feed-line terminal protection loses selectivity
There are two or multiple switch simultaneously protect separating brake；
3) the X times are introduced into after feed-line terminal protection separating brake, meet if there is ballast to close condition, primary weight is switched after the X times
Conjunction acts；
4) enter the fault detect Y times after the X times, the non-separating brake of switch thinks successful reclosing in the Y times, and failure is not at this
Grade, switch separating brake thinks reclosing failure in the Y times, and failure is in this grade；
If 5) reclosing failure, circuit breaker lock is in gate-dividing state, if successful reclosing, into the Z times and keeps "on" position, i.e.,
It is latched separating brake in short-term, failure also no longer separating brake is detected in the Z times.
The no-delay Graded coordination method necessary condition of intelligent feeder automation is on the spot：
1) operating time of protection delay is less than 300ms in standing；
When being less than or equal to 300ms in standing when operating time of protection nargin deficiency, it is suitable for no-delay Graded coordination side
Method.
2) by protecting fixed value adjusting to meet partial selective requirement.
When the instantaneous fast tripping protection definite value of distribution line escapes under distribution system maximum operational mode this grade of feeder line section end
When line to line fault current calibration, can meet selectivity requirement makes 90% or more trip risk reduction of bypassing the immediate leadership, while chopped-off head switchs cloth
Point spacing should be 1.5 kilometers away from switch in station or more and step by step increase layout spacing.
3) Z time settings are rationally effective
Since no-delay Graded coordination backbone and branch line are respectively level-one, and backbone or branch line often install multiple feedbacks
Line terminal, therefore can cause multiple line feed terminals when short trouble occurs while protect separating brake, and once overlap the pass of recovery
Key is rationally adjusting for Z times.That is the failure detection time for adjusting afterbody switch to be escaped of Z times, i.e. " Z ＞ NX+
Y-Y=NX " (N：The maximum number of terminals that this grade of downstream may overlap).
An application as the method for the present invention：
Certain 10kV substations outlet switch exits delay fast tripping protection, instantaneous fast tripping protection definite value 2800A 0ms it is (primary
Value), overcurrent protection definite value is 440A 300ms (sub-value), passes through the no-delay Graded coordination of intelligent feeder automation on the spot
Method is adjusted, and is coordinated by method in 3.1,3.2.After protection fixed value adjusting being carried out to line feed terminals, the 10kV circuits
Realize that the no-delay differential operational mode of intelligent feeder automation on the spot, protection fixed value adjusting are as shown in table 1.
1 10kV of table intelligent no-delay electrode difference protection allocation lists on the spot
Permanent short failure, instantaneous short-circuit failure are simulated respectively to circuit backbone, branch line, on the spot intelligent failure
Processing procedure is as follows：
(1) permanent short failure
Permanent short failure, fault current 1280A, the separate AB phases of failure such as occurs in the downstreams backbone FD3.Backbone
FD2 is switched and I section of protection definite value of FD3 switches is respectively 1100A, 800A, is met current start condition and is started timing, backbone
III sections of FD1, substation CX switches protection definite values are 360A, 400A, meet current start condition and start timing.
A：After 0ms, FD2, FD3 switch protection separating brake isolated fault are as shown in figure 4, backbone FD1, transformer substation switch at this time
III sections of protections return；
B：FD2 switch higher levels have electricity, satisfaction to have ballast conjunction entry condition to enter X time timing, and reclosing acts after 7s, by
In failure not after FD2, failure is not detected in the Y times, successful reclosing is simultaneously maintained under "on" position, and Z no longer divides in the time
Lock is as shown in Figure 5；
C：FD3 switch higher levels have electricity, satisfaction to have ballast conjunction entry condition to enter X time timing, and reclosing acts after 7s, by
In failure after FD3, failure is detected in the Y times, reclosing is in failure and is latched under gate-dividing state as shown in Figure 6.
(2) instantaneous short-circuit failure
Instantaneous short-circuit failure, fault current 706A, the separate BC phases of failure such as occurs in FZ3 branch lines.Branch line FZ2 switches I
Section protection definite value is 600A, backbone FD1, FD2 and III sections of substation CX switches protect definite values be respectively 360A, 280A,
440A meets current start condition and starts timing.
A：After 0ms, FZ2 switchs isolated fault on the spot as shown in fig. 7, backbone FD1, FD2 and substation CX is switched at this time
III sections of protections return；
B：FZ2 switch higher levels have electricity, satisfaction to have ballast conjunction entry condition to enter X time timing, and reclosing acts after 7s, by
In failure is not detected in the failure vanishes Y times, successful reclosing restores electricity as shown in Figure 8.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
All any modification, equivalent and improvement etc., should all be included in the protection scope of the present invention made by within refreshing and principle.
Claims (5)
1. a kind of no-delay Graded coordination method of feeder automation intelligent on the spot, which is characterized in that specifically comprise the following steps：
Step 1: when circuit any point is broken down, by upstream line feed terminals preferential isolation fault section, and do not cause to become
Power station protect separating brake, if upstream feed-line terminal protection loses selectivity, will there are two or multiple switch simultaneously protect separating brake；
Step 2: being introduced into the X times after feed-line terminal protection separating brake, meets if there is ballast to close condition, primary weight is switched after the X times
Conjunction acts；
Step 3: entering the fault detect Y times after the X times, the non-separating brake of switch thinks successful reclosing in the Y times, and failure is not at this
Grade, switch separating brake thinks reclosing failure in the Y times, and failure is in this grade；
If Step 4: reclosing failure, line feed terminals are latched in gate-dividing state, if successful reclosing, are entered the Z times and are kept closing a floodgate
State is latched separating brake in short-term, failure also no longer separating brake is detected in the Z times；
Wherein, X is the time of coincidence when having calendering, and acquiescence 6s can be adjusted；Y is failure detection time, and acquiescence 4s can be adjusted；Z is short
When be latched opening time, adjusted according to X times and Protective levels；When feed-line terminal protection actuation time is that overcurrent protection acts
Between, it is adjusted according to station default value.
2. a kind of no-delay Graded coordination method of feeder automation intelligent on the spot as described in claim 1, it is characterised in that：
Described to have ballast to close condition as protection separating brake, higher level has pressure, reclosing to throw, and X has pressure in the time.
3. a kind of no-delay Graded coordination method of feeder automation intelligent on the spot as described in claim 1, it is characterised in that：
Operating time of protection is less than or equal to 300ms in standing, and Z time settings are more than the failure detection time of afterbody switch.
4. a kind of no-delay Graded coordination method of feeder automation intelligent on the spot as claimed in claim 3, it is characterised in that：
When the instantaneous fast tripping protection definite value of distribution line escapes the line to line fault of this grade of feeder line section end under distribution system maximum operational mode
When current calibration, chopped-off head, which switchs, layouts 1.5 kilometers away from switch in station of spacing or more and increases spacing of layouting step by step.
5. a kind of application of the no-delay Graded coordination method of feeder automation intelligent on the spot, which is characterized in that become for 10kV
Power station outlet switch exits instantaneous fast tripping protection, specific as follows：
10kV substations outlet switch exits delay fast tripping protection, instantaneous fast tripping protection definite value 2800A 0ms, overcurrent protection is fixed
Value be 440A 300ms, adjusted by the no-delay Graded coordination method of intelligent feeder automation on the spot, to line feed terminals
After carrying out protection fixed value adjusting, 10kV circuits realize the no-delay differential operational mode of intelligent feeder automation on the spot, to circuit
Backbone, branch line simulate permanent short failure, instantaneous short-circuit failure respectively, and intelligent fault treating procedure is as follows on the spot：
S1, permanent short failure, fault current 1280A, the separate AB phases of failure occurs in the downstreams backbone FD3.Backbone FD2 is opened
It closes and I section of protection definite value of FD3 switches is respectively 1100A, 800A, meet current start condition and start timing, backbone FD1, become
CX switches III sections of protection definite values in power station are 360A, 400A, meet current start condition and start timing:
After S1-A, 0ms, FD2, FD3 switch protection separating brake isolated fault are as shown in figure 4, backbone FD1, transformer substation switch at this time
III sections of protections return；
S1-B：FD2 switch higher levels have electricity, satisfaction to have ballast conjunction entry condition to enter X time timing, and reclosing acts after 7s, by
In failure not after FD2, failure is not detected in the Y times, successful reclosing is simultaneously maintained under "on" position, and Z no longer divides in the time
Lock；
S1-C, FD3 switch higher level have electricity, satisfaction to have ballast conjunction entry condition to enter X time timing, and reclosing acts after 7s, by
In failure after FD3, failure is detected in the Y times, reclosing is in failure and is latched under gate-dividing state；
S2, instantaneous short-circuit failure, fault current 706A, the separate BC phases of failure occurs in FZ3 branch lines.I section of guarantor of branch line FZ2 switches
Shield definite value is 600A, and backbone FD1, FD2 and III sections of protection definite values of substation CX switches are respectively 360A, 280A, 440A, are expired
Sufficient current start condition starts timing:
After S2-A, 0ms, FZ2 switchs isolated fault on the spot as shown in fig. 7, backbone FD1, FD2 and substation CX is switched at this time
III sections of protections return；
S2-B, FZ2 switch higher level have electricity, satisfaction to have ballast conjunction entry condition to enter X time timing, and reclosing acts after 7s, by
In failure is not detected in the failure vanishes Y times, successful reclosing restores electricity.
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| CN201810628773.2A CN108666991A (en) | 2018-06-19 | 2018-06-19 | A kind of no-delay Graded coordination method of feeder automation intelligent on the spot and application |
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| CN201810628773.2A CN108666991A (en) | 2018-06-19 | 2018-06-19 | A kind of no-delay Graded coordination method of feeder automation intelligent on the spot and application |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109473955A (en) * | 2018-11-14 | 2019-03-15 | 珠海许继电气有限公司 | A kind of adaptive distribution line failure treating method based on breaker |
| CN111371078A (en) * | 2020-04-10 | 2020-07-03 | 浙江安众科技有限公司 | On-site feeder automation method based on full circuit breaker |
| CN111371075A (en) * | 2019-12-26 | 2020-07-03 | 国网北京市电力公司 | Feeder protection processing method, storage medium and processor |
| CN111756022A (en) * | 2020-05-12 | 2020-10-09 | 国网江西省电力有限公司电力科学研究院 | Fusion type in-situ feeder automatic design method |
| CN113991622A (en) * | 2021-10-29 | 2022-01-28 | 武汉市速隔迅联电力科技有限公司 | Feeder automation voltage-loss brake-separating delay strategy and setting method |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109473955A (en) * | 2018-11-14 | 2019-03-15 | 珠海许继电气有限公司 | A kind of adaptive distribution line failure treating method based on breaker |
| CN109473955B (en) * | 2018-11-14 | 2020-04-14 | 珠海许继电气有限公司 | Self-adaptive distribution line fault processing method based on circuit breaker |
| CN111371075A (en) * | 2019-12-26 | 2020-07-03 | 国网北京市电力公司 | Feeder protection processing method, storage medium and processor |
| CN111371075B (en) * | 2019-12-26 | 2022-07-19 | 国网北京市电力公司 | Feeder protection processing method, storage medium and processor |
| CN111371078A (en) * | 2020-04-10 | 2020-07-03 | 浙江安众科技有限公司 | On-site feeder automation method based on full circuit breaker |
| CN111756022A (en) * | 2020-05-12 | 2020-10-09 | 国网江西省电力有限公司电力科学研究院 | Fusion type in-situ feeder automatic design method |
| CN113991622A (en) * | 2021-10-29 | 2022-01-28 | 武汉市速隔迅联电力科技有限公司 | Feeder automation voltage-loss brake-separating delay strategy and setting method |
| CN113991622B (en) * | 2021-10-29 | 2023-07-18 | 武汉市速隔迅联电力科技有限公司 | Feeder line automatic voltage-losing and switching-off delay strategy and setting method |
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Application publication date: 20181016 |