CN109358267A - A kind of distribution line power failure monitoring method based on fault detector - Google Patents
A kind of distribution line power failure monitoring method based on fault detector Download PDFInfo
- Publication number
- CN109358267A CN109358267A CN201811171133.XA CN201811171133A CN109358267A CN 109358267 A CN109358267 A CN 109358267A CN 201811171133 A CN201811171133 A CN 201811171133A CN 109358267 A CN109358267 A CN 109358267A
- Authority
- CN
- China
- Prior art keywords
- distribution line
- distribution
- fault
- zero
- fault detector
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
- G01R31/08—Locating faults in cables, transmission lines, or networks
- G01R31/081—Locating faults in cables, transmission lines, or networks according to type of conductors
- G01R31/085—Locating faults in cables, transmission lines, or networks according to type of conductors in power transmission or distribution lines, e.g. overhead
-
- 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
- G01R31/08—Locating faults in cables, transmission lines, or networks
- G01R31/088—Aspects of digital computing
Abstract
The present invention relates to power distribution network on-line monitoring technique fields, disclose a kind of distribution line power failure monitoring method based on fault detector, to extend the Application effect of fault detector, realize to have a power failure to distribution network failure and more completely, more accurately manage；The method comprise the steps that fault detector acquires the load current and line voltage distribution of distribution line in real time；The working condition of distribution line is divided at least four classes, including permanent fault state, transient fault state, scheduled outage state and telegram in reply success status according to load current and line voltage distribution by fault detector；According to working condition, fault detector selection sends corresponding permanent fault information, transient fault information, scheduled outage information and telegram in reply information to terminal.
Description
Technical field
The present invention relates to power distribution network on-line monitoring technique field more particularly to a kind of distribution lines based on fault detector
Power failure monitoring method.
Background technique
With the rapid development of social economy, demand of the people to distribution network reliability and good service increasingly increases
More, also to the promotion of power distribution network control means, more stringent requirements are proposed.But power distribution network there are scales big, base for a long time
The disadvantages of plinth is weak, existing power distribution network management relies primarily on manpower and removes maintenance line and trouble shoot, and distribution network line branch
More, the method for operation is complicated, and the management service workload of route is very big, inquires when breaking down time-consuming and laborious.Power supply company's layer
Face is also difficult to grasp whole stoppage in transit situations of 10 KV line of constituent parts, can not quickly carry out and actively repair, it is also difficult to specific aim
Development line outage and distribution transforming stoppage in transit renovation, constrain the promotion of power supply enterprise's distribution network reliability.
Distribution line failure indicator, (abbreviation fault detector) can make up for it the positioning of power supply enterprise's distribution line failure
The deficiency of ability and intelligent level, for fault point is accurately positioned, fast recovery of power supply provides sound assurance, significantly improves confession
Electric reliability promotes the working efficiency of live operation maintenance personnel.But current failure indicator mainly supports the failure of distribution line
Positioning, does not monitor the power failure of monitored route, telegram in reply event effectively, and therefore, fault detector is in support distribution
Net power supply reliability is promoted and lean management aspect is still to be improved.
Summary of the invention
The distribution line power failure monitoring method based on fault detector that it is an object of that present invention to provide a kind of, with extension
The Application effect of fault detector is realized to have a power failure to distribution network failure and more completely, more accurately be managed.
To achieve the above object, the present invention provides a kind of distribution line power failure monitoring side based on fault detector
Method, comprising the following steps:
S1: fault detector acquires the load current and line voltage distribution of distribution line in real time；
S2: fault detector divides the working condition of the distribution line according to the load current and the line voltage distribution
It is at least four classes, including permanent fault state, transient fault state, scheduled outage state and telegram in reply success status；
S3: according to the working condition, fault detector selection sends corresponding permanent fault information, transient fault letter
Breath, scheduled outage information and telegram in reply information are to terminal.
Preferably, in the S2, the working condition by the distribution line is divided at least four classes, specifically includes:
When the load current and the line voltage distribution meet the first decision condition, the work of the distribution line is judged
State is permanent fault state；
When the load current and the line voltage distribution meet the second decision condition, the work of the distribution line is judged
State is transient fault state；
When the load current and the line voltage distribution meet third decision condition, the work of the distribution line is judged
State is scheduled outage state；
When the load current and the line voltage distribution meet four decision conditions, the work of the distribution line is judged
State is telegram in reply success status.
Preferably, the permanent fault information include occur permanent fault at the beginning of and the end time；It is described instantaneous
Fault message include occur transient fault at the beginning of and the end time；The scheduled outage information includes that scheduled outage occurs
At the beginning of and the end time；The telegram in reply information includes the successful time of sending a telegram in reply.
Preferably, it further comprises the steps of:
S4: the terminal is according to the information received, at the beginning of obtaining corresponding failure and the end time, calculates distribution wire
The power failure duration on road.
Preferably, in the S2, the working condition of the permanent fault includes that reclosing does not throw state and unsuccessful reclosing
State.
Preferably, when the working condition of the distribution line is that reclosing does not throw state, first decision condition are as follows:
The line voltage distribution of the distribution line meets: being not zero in first time period and is zero within the third period；
The load current of the distribution line meets: being equal to the failure current thresholds of setting in second time period and the
It is zero in three periods.
Preferably, when the working condition of the distribution line is reclosing status of fail, first decision condition are as follows:
The line voltage distribution of the distribution line meets: being not zero in first time period and is zero within the 5th period；
The load current of the distribution line meets: being equal in second time period and in the 4th period the failure electricity of setting
Threshold value is flowed, and is zero within third period and the 5th period.
Preferably, second decision condition are as follows:
The line voltage distribution of the distribution line meets: being not zero in first time period and is zero within the 4th period；
The load current of the distribution line meets: being equal to the failure current thresholds of setting in second time period and the
It is all zero in three periods and the 4th period.
Preferably, the third decision condition are as follows:
The line voltage distribution of the distribution line meets: being not zero in first time period and is zero in second time period；
The load current of the distribution line meets: being zero in second time period.
Preferably, the 4th decision condition are as follows:
The line voltage distribution of the distribution line meets: being zero in first time period and is not zero in second time period；
The load current of the distribution line meets: being zero in first time period.
The invention has the following advantages:
The present invention provides a kind of distribution line power failure monitoring method based on fault detector, increases indicating fault
The monitoring function that device has a power failure to distribution network line and sends a telegram in reply, extends the Application effect of fault detector, is able to achieve to power distribution network
Fault outage is more complete, more accurately manages.
Below with reference to accompanying drawings, the present invention is described in further detail.
Detailed description of the invention
The attached drawing constituted part of this application is used to provide further understanding of the present invention, schematic reality of the invention
It applies example and its explanation is used to explain the present invention, do not constitute improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is the monitoring method flow chart of the preferred embodiment of the present invention；
Fig. 2 is that the load current of distribution line and line voltage distribution take when the reclosing of the preferred embodiment of the present invention does not throw state
It is worth situation schematic diagram；
The load current of distribution line and line voltage distribution take when Fig. 3 is the unsuccessful reclosing state of the preferred embodiment of the present invention
It is worth situation schematic diagram；
The load current and line voltage distribution value of distribution line when Fig. 4 is the transient fault state of the preferred embodiment of the present invention
Situation schematic diagram；
The load current and line voltage distribution value of distribution line when Fig. 5 is the scheduled outage state of the preferred embodiment of the present invention
Situation schematic diagram；
The load current and line voltage distribution value of distribution line when Fig. 6 is the telegram in reply success status of the preferred embodiment of the present invention
Situation schematic diagram.
Specific embodiment
The embodiment of the present invention is described in detail below in conjunction with attached drawing, but the present invention can be defined by the claims
Implement with the multitude of different ways of covering.
As shown in Figure 1, the present embodiment provides a kind of distribution line power failure monitoring method based on fault detector, packet
Include following steps:
S1: fault detector acquires the load current and line voltage distribution of distribution line in real time；
S2: the working condition of distribution line is divided at least four classes according to load current and line voltage distribution by fault detector,
Including permanent fault state, transient fault state, scheduled outage state and telegram in reply success status；
S3: according to working condition, fault detector selection sends corresponding permanent fault information, transient fault information, meter
Outage information and telegram in reply information are drawn to terminal.
In above-mentioned steps, the monitoring function that fault detector has a power failure to distribution network line, sends a telegram in reply is increased, event is extended
The Application effect for hindering indicator is able to achieve to have a power failure to distribution network failure and more completely, more accurately manage.
It should be noted that the embodiment of the present invention is by taking 10kv overhead transmission line as an example, because fault detector cannot be straight
Acquisition line voltage distribution is connect, therefore fault detector realizes the load for obtaining distribution line by the telemetered signal of acquisition distribution line
Electric current and line voltage distribution.In addition, it is worth noting that, permanent fault information includes at the beginning of permanent fault occurs and terminating
Time；Transient fault information include occur transient fault at the beginning of and the end time；Scheduled outage information includes counting
Draw have a power failure at the beginning of and the end time；Information of sending a telegram in reply includes the successful time of sending a telegram in reply.
In embodiments of the present invention, the working condition of distribution line is divided at least four classes in above-mentioned S2, specifically included:
When load current and line voltage distribution meet the first decision condition, judge the working condition of distribution line for permanent event
Barrier state；When load current and line voltage distribution meet the second decision condition, judge the working condition of distribution line for instantaneous event
Barrier state；When load current and line voltage distribution meet third decision condition, judge that the working condition of distribution line is stopped for plan
Electricity condition；When load current and line voltage distribution meet four decision conditions, judge the working condition of distribution line be send a telegram in reply at
Function state.
Further, when fault detector monitors that distribution line in power supply, has occurred in above-mentioned four classes working condition
Any one when, the working condition and corresponding information are sent to terminal, after terminal receives information, method of the invention is also
The following steps are included:
S4: according to the information received, at the beginning of obtaining corresponding failure and the end time, the power failure of distribution line is calculated
Duration.
Specifically, the line voltage distribution of distribution line is set as U, the load current of distribution line is set as I, as this implementation
Example preferred embodiment, in S2, permanent fault state includes that reclosing does not throw state and unsuccessful reclosing state.On the one hand,
When distribution line, which is in reclosing, does not throw state, the first decision condition are as follows:
As shown in Fig. 2, the line voltage distribution of distribution line is not zero in first time period T1, alternatively, in the first time
The load current of distribution line is equal to preset failure current thresholds, i.e. U ≠ 0 or I=I failure in section T1；Preferably, should
First time period T0 is set as 30s, but the present invention is not limited to this, in the case where that can reach identical purpose, moreover it is possible to certain
The value of adjustment first time period in range.
It is worth noting that first time period T0 is original state, according to actual experiment experience, by it in the present embodiment
It is set as 30S, the charging time needed for being used as the normal operation of fault detector,
The load current I of distribution line is equal to the failure current thresholds of setting, i.e. I=in the second time period T2 of setting
I failure, wherein second time period T2 is set as 40ms.In this implementation, in second time period T2, fault detector is operated in
In malfunction, because fault detector equipment itself judges the time required to malfunction for 40ms or so, the present embodiment
It is middle that second time period is set as 40ms.
The line voltage distribution U and load current I of distribution line are zero, i.e. U=0 and I in the third period T3 of setting
=0, wherein the third period, T3 was set as 30s.In the present embodiment, in third period T3, fault detector is in and stays
State is set to 30s according to actual experiment, is able to satisfy the work requirements of fault detector, and, moreover it is possible to it is better protected from event
The variation for the working condition that barrier indicator is frequent in a short time, can improve job stability and the judgement of fault detector
Accuracy.
After meeting above-mentioned condition, fault detector determines that " reclosing is not thrown " event occurs on distribution line, sends forever
Long fault message is to terminal.
On the other hand, when distribution line is in unsuccessful reclosing state, the first decision condition are as follows:
As shown in figure 3, the line voltage distribution U of distribution line is not zero in the first time period T1 of setting, alternatively, this
The load current of distribution line is equal to preset failure current thresholds, i.e. U ≠ 0 or I=I failure in one period T1.It is excellent
Choosing, first time period T0 is set as 30s.
The load current I of distribution line is equal to the failure current thresholds of setting, i.e. I=in the second time period T2 of setting
I failure, it is preferred that second time period T2 is set as 40ms.
The load current I of distribution line is zero in the third period T3 of setting, i.e. I=0, it is preferred that when the third
Between section T3 be set as 0.2s.
The load current I of distribution line is equal to the failure current thresholds of setting, i.e. I=in the 4th period T4 of setting
I failure, it is preferred that the 4th period T4 is set as 40ms.
The line voltage distribution U and load current I of distribution line are zero, i.e. U=0 and I in the 5th period T5 of setting
=0, it is preferred that the 5th period T5 is set as 30s.
After meeting above-mentioned condition, fault detector determines that " unsuccessful reclosing " event occurs on distribution line, sends forever
Long fault message is to terminal.
As the present embodiment preferred embodiment, the second decision condition are as follows:
As shown in figure 4, the line voltage distribution U of distribution line is not zero in the first time period T0 of setting, alternatively, this
The load current of distribution line is equal to preset failure current thresholds, i.e. U ≠ 0 or I=I failure in one period T1.It is excellent
Choosing, first time period T0 is set as 30s.
The load current I of distribution line is equal to the failure current thresholds of setting, i.e. I=in the second time period T2 of setting
I failure, it is preferred that second time period T2 is set as 40ms.
The load current I of distribution line is zero in the third period T3 of setting, i.e. I=0, it is preferred that when the third
Between section T3 be set as 0.2s.In the present embodiment, in order to be matched with the reclosure time after line fault, wink is being judged whether it is
When failure when, by route throw reclosing time T3 be set as 0.2S, to improve the accuracy of judging result.
The line voltage distribution U and load current I of distribution line are zero, i.e. U=0 and I in the 4th period T4 of setting
=0, it is preferred that the 5th period T4 is set as 30s.
After meeting above-mentioned condition, fault detector determines that transient fault occurs on distribution line, sends transient fault letter
It ceases to terminal.
As the present embodiment preferred embodiment, third decision condition are as follows:
As shown in figure 5, the line voltage distribution U of distribution line is not zero in the first time period T0 of setting, alternatively, this
The load current of distribution line is equal to preset failure current thresholds, i.e. U ≠ 0 or I=I failure in one period T1.It is excellent
Choosing, first time period T0 is set as 30s.
The line voltage distribution U and load current I of distribution line are zero, i.e. U=0 and I in the second time period T2 of setting
=0, it is preferred that second time period T2 is set as 30s.
After meeting above-mentioned condition, fault detector determines that scheduled outage occurs on distribution line, sends scheduled outage letter
It ceases to terminal.
As the present embodiment preferred embodiment, the 4th decision condition are as follows:
As shown in fig. 6, the line voltage distribution U and load current I of distribution line are zero in the first time period T1 of setting,
That is U=0 and I=0, it is preferred that first time period T1 is set as 30s.
The line voltage distribution U of distribution line is not zero in the second time period T2 of setting, alternatively, in second time period T2
The load current of interior distribution line is equal to preset failure current thresholds, i.e. U ≠ 0 or I=I failure.Preferably, this second
Period, T2 was set as 30s.
It is worth noting that in the present embodiment, in the time setting for each period for carrying out different working condition, all
To be setting target the time required to fault indicator, the present embodiment provides preferred time setting, but simultaneously under corresponding state
It limits not to this, in practical operation, according to circumstances the time under each state can be adjusted correspondingly.Wherein, if
Fixed basis is described in detail when the first decision condition is described, and is not repeated herein.
After meeting above-mentioned condition, fault detector determines that distribution line is sent a telegram in reply successfully, sends telegram in reply information to terminal.
The line voltage distribution and load current of electric line are all the line electricity of zero, distribution line in the first time period of setting
It is pressed in the second time period of setting and is not zero.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of distribution line power failure monitoring method based on fault detector, which comprises the following steps:
S1: fault detector acquires the load current and line voltage distribution of distribution line in real time；
S2: fault detector according to the load current and the line voltage distribution by the working condition of the distribution line be divided into
Few four classes, including permanent fault state, transient fault state, scheduled outage state and telegram in reply success status；
S3: according to the working condition, fault detector selection sends corresponding permanent fault information, transient fault information, meter
Outage information and telegram in reply information are drawn to terminal.
2. the distribution line power failure monitoring method according to claim 1 based on fault detector, which is characterized in that
In the S2, the working condition by the distribution line is divided at least four classes, specifically includes:
When the load current and the line voltage distribution meet the first decision condition, the working condition of the distribution line is judged
For permanent fault state；
When the load current and the line voltage distribution meet the second decision condition, the working condition of the distribution line is judged
For transient fault state；
When the load current and the line voltage distribution meet third decision condition, the working condition of the distribution line is judged
For scheduled outage state；
When the load current and the line voltage distribution meet four decision conditions, the working condition of the distribution line is judged
For success status of sending a telegram in reply.
3. the distribution line power failure monitoring method according to claim 1 based on fault detector, which is characterized in that
The permanent fault information include occur permanent fault at the beginning of and the end time；The transient fault information includes occurring
At the beginning of transient fault and the end time；The scheduled outage information includes at the beginning of scheduled outage occurs and terminating
Time；The telegram in reply information includes the successful time of sending a telegram in reply.
4. the distribution line power failure monitoring method according to claim 3 based on fault detector, which is characterized in that
It further comprises the steps of:
S4: the terminal is according to the information received, at the beginning of obtaining corresponding failure and the end time, calculates distribution line
Power failure duration.
5. the distribution line power failure monitoring method according to claim 2 based on fault detector, which is characterized in that
In the S2, the working condition of the permanent fault includes that reclosing does not throw state and unsuccessful reclosing state.
6. the distribution line power failure monitoring method according to claim 5 based on fault detector, which is characterized in that
When the working condition of the distribution line is that reclosing does not throw state, first decision condition are as follows:
The line voltage distribution of the distribution line meets: being not zero in first time period and is zero within the third period；
The load current of the distribution line meets: being equal to the failure current thresholds of setting in second time period and in third
Between be zero in section.
7. the distribution line power failure monitoring method according to claim 5 based on fault detector, which is characterized in that
When the working condition of the distribution line is reclosing status of fail, first decision condition are as follows:
The line voltage distribution of the distribution line meets: being not zero in first time period and is zero within the 5th period；
The load current of the distribution line meets: being equal in second time period and in the 4th period the fault current threshold of setting
Value, and be zero within third period and the 5th period.
8. the distribution line power failure monitoring method according to claim 2 based on fault detector, which is characterized in that
Second decision condition are as follows:
The line voltage distribution of the distribution line meets: being not zero in first time period and is zero within the 4th period；
The load current of the distribution line meets: being equal to the failure current thresholds of setting in second time period and in third
Between section and be all zero in the 4th period.
9. the distribution line power failure monitoring method according to claim 2 based on fault detector, which is characterized in that
The third decision condition are as follows:
The line voltage distribution of the distribution line meets: being not zero in first time period and is zero in second time period；
The load current of the distribution line meets: being zero in second time period.
10. the distribution line power failure monitoring method according to claim 2 based on fault detector, feature exist
In the 4th decision condition are as follows:
The line voltage distribution of the distribution line meets: being zero in first time period and is not zero in second time period；
The load current of the distribution line meets: being zero in first time period.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811171133.XA CN109358267A (en) | 2018-10-09 | 2018-10-09 | A kind of distribution line power failure monitoring method based on fault detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811171133.XA CN109358267A (en) | 2018-10-09 | 2018-10-09 | A kind of distribution line power failure monitoring method based on fault detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109358267A true CN109358267A (en) | 2019-02-19 |
Family
ID=65348712
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811171133.XA Pending CN109358267A (en) | 2018-10-09 | 2018-10-09 | A kind of distribution line power failure monitoring method based on fault detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109358267A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112834868A (en) * | 2021-01-06 | 2021-05-25 | 国网新疆电力有限公司吐鲁番供电公司 | Non-contact detection method for wire power-off event |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103645424A (en) * | 2013-12-25 | 2014-03-19 | 国家电网公司 | Line fault detecting system and method capable of achieving real-time interaction of three-phase data |
| CN204065296U (en) * | 2013-11-28 | 2014-12-31 | 国家电网公司 | There is the ring main unit fault-indicating system of anti-misoperation function |
| US20150318027A1 (en) * | 2014-04-30 | 2015-11-05 | Sandisk Enterprise Ip Llc | Continuous Capacitor Health Monitoring and Power Supply System |
| CN106908037A (en) * | 2017-03-15 | 2017-06-30 | 广州航海学院 | Distribution line shaft tower heeling condition detection method based on fault detector |
| CN107132446A (en) * | 2017-06-26 | 2017-09-05 | 宁波功成电气有限公司 | A kind of fault detector of high reliability, high precision |
| CN107272525A (en) * | 2017-08-16 | 2017-10-20 | 杭州大有科技发展有限公司 | A kind of fault detector |
| CN206696367U (en) * | 2017-05-11 | 2017-12-01 | 广东绿禾电气科技有限公司 | A kind of overhead transmission line accident indicator |
| CN108132425A (en) * | 2017-12-18 | 2018-06-08 | 云南电网有限责任公司电力科学研究院 | Power grid distribution line failure on-line monitoring method and system |
-
2018
- 2018-10-09 CN CN201811171133.XA patent/CN109358267A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204065296U (en) * | 2013-11-28 | 2014-12-31 | 国家电网公司 | There is the ring main unit fault-indicating system of anti-misoperation function |
| CN103645424A (en) * | 2013-12-25 | 2014-03-19 | 国家电网公司 | Line fault detecting system and method capable of achieving real-time interaction of three-phase data |
| US20150318027A1 (en) * | 2014-04-30 | 2015-11-05 | Sandisk Enterprise Ip Llc | Continuous Capacitor Health Monitoring and Power Supply System |
| CN106908037A (en) * | 2017-03-15 | 2017-06-30 | 广州航海学院 | Distribution line shaft tower heeling condition detection method based on fault detector |
| CN206696367U (en) * | 2017-05-11 | 2017-12-01 | 广东绿禾电气科技有限公司 | A kind of overhead transmission line accident indicator |
| CN107132446A (en) * | 2017-06-26 | 2017-09-05 | 宁波功成电气有限公司 | A kind of fault detector of high reliability, high precision |
| CN107272525A (en) * | 2017-08-16 | 2017-10-20 | 杭州大有科技发展有限公司 | A kind of fault detector |
| CN108132425A (en) * | 2017-12-18 | 2018-06-08 | 云南电网有限责任公司电力科学研究院 | Power grid distribution line failure on-line monitoring method and system |
Non-Patent Citations (1)
| Title |
|---|
| 孙慧颖: "青岛配电网主动故障研判系统研究与软件开发", 《中国优秀硕士学位论文全文数据库 工程科技Ⅱ辑》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112834868A (en) * | 2021-01-06 | 2021-05-25 | 国网新疆电力有限公司吐鲁番供电公司 | Non-contact detection method for wire power-off event |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101266953B1 (en) | Power supply system and method using distributed power system | |
| CN106646104B (en) | Fault Diagnosis Method for Distribution Networks | |
| CN103516054B (en) | Power distribution network fault automatic processing method | |
| CN103490520B (en) | Power distribution network fault treatment method | |
| CN103490523B (en) | Intelligent power distribution network fault treatment system | |
| CN106291245A (en) | A kind of distribution network failure actively generates and sends repaiies method and apparatus | |
| CN103490522A (en) | Intelligent power distribution network fault treatment method | |
| CN110011412A (en) | Low-voltage power distribution station area monitoring running state and failure management-control method | |
| CN111582550A (en) | Power station fault first-aid repair quick response system based on GIS | |
| CN103501053A (en) | Comprehensive fault handling system for power distribution and consumption network | |
| CN109358267A (en) | A kind of distribution line power failure monitoring method based on fault detector | |
| CN113937736B (en) | Power system fault protection system and protection method | |
| CN109978296A (en) | A kind of power distribution network aid decision-making system | |
| CN104849534A (en) | Method for realizing voltage measurement abnormity detection in direct-current station control system | |
| JP5477771B2 (en) | Uninterruptible power supply operation system | |
| CN109713788A (en) | A kind of remote failure monitoring method for power equipment | |
| CN103713239B (en) | Based on the sense of current and the circuitry fault detection method of number of times | |
| CN201252390Y (en) | Remote intelligent power supply | |
| CN110927627A (en) | Monitoring method for measuring winding wire breakage and three-phase current unbalanced operation by CT | |
| US20180248352A1 (en) | Lateral disturbance detection and remote tracking of automatic lateral switch operations | |
| CN201985623U (en) | Device for performing remote alarm to abnormal running of distribution transformer | |
| CN108844580A (en) | Transmission line of electricity environmental abnormality analysis method | |
| CN202513674U (en) | Remote alarm device for abnormal current leakage of arrestor | |
| CN206323628U (en) | Cable line fault monitoring system based on urban road intelligent lighting | |
| CN110011413A (en) | Low-voltage power distribution station area monitoring running state and failure managing and control system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190219 |
|
| RJ01 | Rejection of invention patent application after publication |