CN113238171A - Remote and rapid positioning and judging method for electric secondary circuit fault - Google Patents
Remote and rapid positioning and judging method for electric secondary circuit fault Download PDFInfo
- Publication number
- CN113238171A CN113238171A CN202110522645.1A CN202110522645A CN113238171A CN 113238171 A CN113238171 A CN 113238171A CN 202110522645 A CN202110522645 A CN 202110522645A CN 113238171 A CN113238171 A CN 113238171A
- Authority
- CN
- China
- Prior art keywords
- fault
- secondary circuit
- judging
- equipment
- dimensional code
- 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
- 238000000034 method Methods 0.000 title claims description 15
- 238000001514 detection method Methods 0.000 claims abstract description 40
- 238000012545 processing Methods 0.000 claims abstract description 14
- 238000005259 measurement Methods 0.000 claims abstract description 13
- 238000012423 maintenance Methods 0.000 claims abstract description 12
- 238000010586 diagram Methods 0.000 claims abstract description 10
- 230000007246 mechanism Effects 0.000 claims abstract description 5
- 230000007306 turnover Effects 0.000 claims abstract description 3
- 238000004891 communication Methods 0.000 claims description 3
- 238000012544 monitoring process Methods 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 2
- 230000003111 delayed effect Effects 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 238000004146 energy storage Methods 0.000 description 2
- 238000013024 troubleshooting Methods 0.000 description 2
- 206010033799 Paralysis Diseases 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Images
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
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/54—Testing for continuity
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/14—Indicating direction of current; Indicating polarity of voltage
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Locating Faults (AREA)
Abstract
The invention discloses a remote and rapid positioning and judging device for electric secondary circuit faults, which comprises a two-dimensional code module and an electric fault remote judging device, wherein the two-dimensional code module is attached to a mechanism box and comprises the following components: be provided with equipment secondary circuit coordinate point and schematic diagram information, secondary circuit coordinate point is for judging switch business turn over mouth point, and electric fault remote judgement device is including a plurality of voltage transformer and the secondary circuit fault detection device of overall arrangement on a plurality of secondary circuit coordinate points, and voltage transformer is connected to secondary circuit fault detection device, and secondary circuit fault detection device is connected to measurement and control device. The invention can quickly and accurately lock the fault point, judge the fault component, eliminate the fault point in time and ensure the safe operation of the equipment. Zero-base personnel can complete quick and accurate searching of secondary circuit fault points, a large amount of secondary drawing data does not need to be carried, and the working efficiency, the fault judgment accuracy and the fault processing rapidity of secondary operation and maintenance personnel are effectively improved.
Description
Technical Field
The invention relates to a remote and rapid positioning and judging method for an electric secondary circuit fault, and belongs to the technical field of electric secondary circuit fault positioning and judging.
Background
The electric secondary circuit is an important guarantee for the safe operation of the primary equipment, once the primary equipment is failed, the safe operation of the primary equipment is influenced, the electric power system can be paralyzed in severe cases, and the safe operation of the electric power system equipment can be guaranteed only by quickly and correctly removing the failure of the secondary circuit. At present, the safe operation of secondary equipment is particularly important, the secondary circuit is more and more complicated due to the differentiation of the principle of the equipment, the processing of the secondary operation and maintenance personnel on the occurrence of control circuit disconnection, energy storage failure of an energy storage circuit, signal circuit abnormity and the like is very troublesome, the processing of one possible control circuit disconnection also needs 1 hour or more (1 day at most), the reliable power supply of the equipment is greatly delayed, and a large amount of electric quantity is lost.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the method for remotely and quickly positioning and judging the fault of the electrical secondary circuit is provided to solve the problems in the prior art.
The technical scheme adopted by the invention is as follows: the utility model provides a long-range quick location of electric secondary circuit trouble judges device, includes two-dimensional code module and the long-range device of judging of electric trouble of pasting on the mechanism case, the two-dimensional code module: be provided with equipment secondary circuit coordinate point and schematic diagram information, secondary circuit coordinate point is for judging switch business turn over mouth point, and electric fault remote judgement device is including a plurality of voltage transformer and the secondary circuit fault detection device of overall arrangement on a plurality of secondary circuit coordinate points, and voltage transformer is connected to secondary circuit fault detection device, and secondary circuit fault detection device is connected to measurement and control device.
The device for remotely and quickly positioning and judging the fault of the electrical secondary circuit further comprises a handheld two-dimensional code scanner.
The remote communication module adopts a WiFi module, a GPRS module and a GSM module.
The judging switch comprises a switch of a secondary closing loop and a switch of a secondary opening loop.
The voltage transformer is connected to the secondary circuit fault detection device through an electromagnetic shielding wire.
The measurement and control device is connected to the RTU device, and the RTU device is connected to the monitoring computer and the remote terminal.
A positioning judgment method of a remote quick positioning judgment device for electric secondary circuit faults is as follows: when an electric secondary circuit fault occurs, the secondary circuit fault detection device automatically starts to detect the positive and negative voltages of two adjacent voltage transformers, diagnoses the fault component according to the positive and negative voltages, quickly diagnoses the fault component within 1 minute, automatically sends 'fault judgment information' to secondary operation and maintenance personnel or dispatchers, and field processing personnel quickly eliminates the fault component of the secondary circuit according to the 'fault judgment information' and timely restores the operation of fault equipment.
When the zero-base personnel are subjected to field processing, a handheld two-dimensional code scanner is used for scanning a two-dimensional code on the spot to obtain a secondary circuit coordinate point and a schematic diagram of the equipment, fault finding is performed in sequence according to the secondary circuit coordinate point of the equipment, a fault component is locked, and the fault equipment is timely removed and recovered to operate.
The invention has the beneficial effects that: compared with the prior art, the invention can quickly and accurately lock the fault point within 5 minutes, judge the fault component, eliminate the fault point in time and ensure the safe operation of equipment. Meanwhile, secondary operation and maintenance personnel can obtain a coordinate point and a secondary atlas for electrical secondary circuit fault finding of the equipment through scanning a two-dimensional code installed in an equipment mechanism box, zero-base personnel can complete quick and accurate finding of the secondary circuit fault point without carrying a large amount of secondary drawing data, the method has universality, can be applied to secondary circuit fault finding in various electrical fields, and effectively improves the working efficiency, fault judgment accuracy and fault processing rapidity of the secondary operation and maintenance personnel, and avoids economic loss caused by equipment delayed power transmission due to fault point misjudgment, missed judgment and misjudgment.
Drawings
FIG. 1 is a schematic diagram of a coordinate point structure according to the present invention; in the figure, 1, 2, 3, 4, 5, 6 and 7 are mark points of a closing loop; green marks 8, 9 and 10 are mark points on the brake separating loop;
FIG. 2 is a schematic structural view of the present invention;
fig. 3 is an illustration.
Detailed Description
The invention is further described with reference to the accompanying drawings and specific embodiments.
Example 1: as shown in fig. 1-2, a remote quick positioning and judging device for electrical secondary circuit faults comprises a two-dimensional code module and an electrical fault remote judging device, wherein the two-dimensional code module is attached to a mechanism box: the device is provided with equipment secondary circuit coordinate points and schematic diagram information, the secondary circuit coordinate points are used for judging switch inlet and outlet points, the electrical fault remote judging device comprises a plurality of voltage transformers and secondary circuit fault detection devices (a built-in processor, a touch screen connected with the processor and the like) which are distributed on the secondary circuit coordinate points, the voltage transformers are connected to the secondary circuit fault detection devices, and the secondary circuit fault detection devices are connected to the measurement and control device.
The device for remotely and quickly positioning and judging the fault of the electrical secondary circuit further comprises a handheld two-dimensional code scanner.
The remote communication module adopts a WiFi module, a GPRS module and a GSM module.
The judging switch comprises a switch of a secondary closing loop and a switch of a secondary opening loop.
The voltage transformer is connected to the secondary circuit fault detection device through an electromagnetic shielding wire.
The measurement and control device is connected to the RTU device, and the RTU device is connected to the monitoring computer and the remote terminal.
According to the functional characteristics of the electrical secondary circuit, finding out the circuit coordinate points to be monitored, marking the terminals or wire cores of each coordinate point by using label paper, connecting a potential detection line of the electrical secondary circuit fault remote quick positioning and judging device to the coordinate points to detect the normal or abnormal potential of the electrical secondary circuit, judging the potential of the electrical secondary circuit fault remote quick positioning and judging device according to the positive potential to judge the broken line of the secondary circuit and the negative potential to judge the non-broken line of the secondary circuit, switching on and switching off the switch-on quantity in time by the device when the potential of the coordinate 1 point of the electrical secondary circuit is detected to be the positive potential, sending the switch-on and switching-off quantity to a common monitoring and control device according to predefined message information such as 'coordinate 1 broken line alarm' to an RTU dispatching main station end, and judging the position of the broken line of the electrical secondary circuit of the equipment by using the 'coordinate 1 broken line alarm' information of a background monitoring machine, and rapidly informing the fault point to a maintainer for fault removal on site. After the maintainer arrives at the scene, can find "breakpoint" scope according to marking the coordinate point on electric secondary circuit sinle silk fast to can seek breakpoint component name through scanning "two-dimensional code", accurately judge the processing to electric secondary circuit trouble in the time of the utmost point.
Example 2: a positioning judgment method of a remote quick positioning judgment device for electric secondary circuit faults is as follows: when an electric secondary circuit fault occurs, the secondary circuit fault detection device automatically starts to detect the positive and negative voltages of two adjacent voltage transformers, diagnoses the fault component according to the positive and negative voltages, quickly diagnoses the fault component within 1 minute, automatically sends 'fault judgment information' to secondary operation and maintenance personnel or dispatchers, and field processing personnel quickly eliminates the fault component of the secondary circuit according to the 'fault judgment information' and timely restores the operation of fault equipment.
When the zero-base personnel are subjected to field processing, a handheld two-dimensional code scanner is used for scanning a two-dimensional code on the spot to obtain a secondary circuit coordinate point and a schematic diagram of the equipment, fault finding is performed in sequence according to the secondary circuit coordinate point of the equipment, a fault component is locked, and the fault equipment is timely removed and recovered to operate.
The electrical secondary circuit fault remote rapid judging, positioning and fault removing coordinate method has universality, can be applied to secondary circuit fault finding in the electrical field, and can effectively improve the safety, reliability, accuracy, rapidity and the like of fault processing. Particularly, the method is applied to the complex fault finding of the electrical secondary circuit of the GIS combined electrical apparatus, the electrical secondary fault finding is simplified, a field secondary operation and maintenance worker does not need to carry a large amount of drawing data, the field secondary operation and maintenance worker does not need to find a fault point after researching the principle of the secondary circuit, the labor intensity of the secondary operation and maintenance worker is greatly reduced, the electrical secondary fault finding is simplified, and zero-base workers can quickly and accurately judge the fault point and remove faults. When an electric secondary circuit fault occurs, the device automatically starts detection logic, can quickly diagnose the fault component within 1 minute, automatically sends fault judgment information to secondary operation and maintenance personnel or dispatchers, and field processing personnel can quickly remove the fault component of the secondary circuit according to the fault judgment information and timely recover the operation of fault equipment. When zero basic personnel field processing, can sweep on-the-spot "two-dimensional code" and obtain equipment secondary circuit coordinate point and schematic diagram, can carry out trouble-shooting according to the coordinate point in proper order, can lock out trouble components and parts fast in 1 minute, in time the recovery trouble equipment operation of troubleshooting. Compared with the traditional method for searching the fault of the electric secondary circuit at present, the method has the advantages of simplicity, rapidness, accuracy, reliability and the like for searching the fault of the electric secondary circuit, greatly improves the fault processing efficiency, can eliminate the fault in the shortest time, and does not delay the electric quantity loss and the economic loss caused by the power transmission of important equipment.
Specific examples are: as shown in fig. 3, a method and a device for remotely and rapidly positioning and determining an electrical secondary circuit fault include a 1n secondary circuit fault detection device 1, a potential detection module 2, a device power module 3, an external start switch 4, a switching value output module 5, a common measurement and control device 6, a coordinate 115, a coordinate 216, a coordinate 317, a coordinate 418, a coordinate 519, a coordinate 620, a coordinate 721, a coordinate 822, a coordinate 923, a protection measurement and control device 24, an ethernet interface 25, and a potential detection line 26.
1. Normally, the 1n secondary circuit fault detection device 1 is in a monitoring state, and the potential detection lines 26 of the closing circuit are respectively connected to the coordinates 115, 216, 317, 418, 519, and 620; the potential detection line of the switching-off loop is connected with a coordinate 721, a coordinate 822 and a coordinate 923, the potential detection module 2 does not carry out 'potential' detection, the switching value output module 5 does not output switching value, the public measurement and control device 6 does not send 'disconnection' alarm information, and the 'disconnection' alarm information is sent to the RTU scheduling master station end 27 to be in a normal monitoring state. Marking the wire cores of a potential detection line 26, a coordinate 115, a coordinate 216, a coordinate 317, a coordinate 418, a coordinate 519 and a coordinate 620 of the closing circuit in sequence by using red label paper; the green label paper is respectively marked on the wire cores of the potential detection line 26, coordinate 721, coordinate 822 and coordinate 923 of the opening loop in sequence, so that the maintenance personnel can conveniently and rapidly distinguish the opening and closing loops on site and judge the wire breaking position. Meanwhile, a two-dimensional code 28 is pasted on the 1n secondary circuit fault detection device 1 so that a maintainer can conveniently scan a code to inquire 'broken line' point equipment information and a secondary circuit schematic diagram, and faults can be quickly locked and eliminated.
2. According to fig. 3, when the position of the "break point" in the opening loop is broken, the protection measurement and control device 24 controls the action of the contacts of the loop breaking relay, starts the opening 4 outside the opening loop of the secondary loop fault detection device 1, the potential detection module 2 works to automatically detect the "potential" of the potential detection line 26, the coordinate 721, the coordinate 822 and the coordinate 923 of the opening loop, when the coordinate 721 with the "positive potential" and the coordinate 822 with the "negative potential" are detected, the 1n secondary loop fault detection device 1 automatically judges that the secondary loop between the coordinates 721 and 822 is broken, the coordinate 721 with the "positive potential" and the rest coordinates 822 and the coordinate 923 with the "negative potential" are respectively opened into the potential detection modules 2DW3, DW4 and DW5, wherein the DW3 with the "positive potential" is triggered, the K3 relay corresponding to the switching value output module 5 is closed, and the output switching value is sent to the input end of the common measurement and control device 6, triggering a preset message 'coordinate 721 and coordinate 822' broken line alarm, transmitting 'message information' to a dispatcher background monitor on duty through the RTU dispatching master station end 27, informing the electric secondary circuit 'broken line' position in time, and rapidly judging the 'broken line' range of the field electric equipment secondary circuit, possibly damaged components and required spare parts by a maintainer according to the message information received by the dispatching end. When the maintainer arrives at the site, the two-dimensional code 28 can be scanned according to the disconnection information to quickly find the positions of the coordinates 721 and the coordinates 822 on the wire core of the potential detection line 26, and after the potential correctness is verified by using a universal meter without error, the main and auxiliary switches 9 of the switching-off loop S1 can be quickly judged to be caused by faults.
3. The detection principle of the closing loop and the opening loop is the same and is not described.
And the potential detection points of the DW1-DW10 of the potential detection module 2 are only at the positive potential, and the K1-K10 of the switching value output module 5 outputs the corresponding switching value to the common measurement and control device 6 to send out a disconnection alarm.
The above description is only an embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of changes or substitutions within the technical scope of the present invention, and therefore, the scope of the present invention should be determined by the scope of the claims.
Claims (8)
1. The utility model provides a long-range quick location of electric secondary circuit trouble judges device which characterized in that: including pasting two-dimensional code module and the long-range device of judging of electrical fault on the mechanism case, the two-dimensional code module: be provided with equipment secondary circuit coordinate point and schematic diagram information, secondary circuit coordinate point is for judging switch business turn over mouth point, and electric fault remote judgement device is including a plurality of voltage transformer and the secondary circuit fault detection device of overall arrangement on a plurality of secondary circuit coordinate points, and voltage transformer is connected to secondary circuit fault detection device, and secondary circuit fault detection device is connected to measurement and control device.
2. The device for remotely and rapidly positioning and judging the fault of the electrical secondary circuit according to claim 1, wherein: the system also comprises a handheld two-dimensional code scanner.
3. The device for remotely and rapidly positioning and judging the fault of the electrical secondary circuit according to claim 1, wherein: the remote communication module adopts a WiFi module, a GPRS module and a GSM module.
4. The device for remotely and rapidly positioning and judging the fault of the electrical secondary circuit according to claim 1, wherein: the judging switch comprises a switch of a secondary closing loop and a switch of a secondary opening loop.
5. The device for remotely and rapidly positioning and judging the fault of the electrical secondary circuit according to claim 1, wherein: the voltage transformer is connected to the secondary circuit fault detection device through an electromagnetic shielding wire.
6. The device for remotely and rapidly positioning and judging the fault of the electrical secondary circuit according to claim 1, wherein: the measurement and control device is connected to the RTU device, and the RTU device is connected to the supervisory control computer and the remote terminal.
7. The method for determining the location of the device according to any one of claims 1 to 6, wherein: the method comprises the following steps: when an electric secondary circuit fault occurs, the secondary circuit fault detection device automatically starts to detect the positive and negative voltages of two adjacent voltage transformers, diagnoses fault components according to the positive and negative voltages, automatically sends fault judgment information to secondary operation and maintenance personnel or dispatchers, and field processing personnel quickly eliminates the fault components of the secondary circuit according to the fault judgment information and timely recovers the operation of fault equipment.
8. The method for determining the location of the device according to claim 7, wherein the device comprises: when zero basic personnel field treatment, the handheld two-dimensional code scanner is used for scanning a two-dimensional code on the spot to obtain a secondary circuit coordinate point and a schematic diagram of the equipment, fault finding is carried out in sequence according to the secondary circuit coordinate point of the equipment, a fault component is locked, and the fault equipment is timely removed and recovered to operate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110522645.1A CN113238171A (en) | 2021-05-13 | 2021-05-13 | Remote and rapid positioning and judging method for electric secondary circuit fault |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110522645.1A CN113238171A (en) | 2021-05-13 | 2021-05-13 | Remote and rapid positioning and judging method for electric secondary circuit fault |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113238171A true CN113238171A (en) | 2021-08-10 |
Family
ID=77133983
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110522645.1A Pending CN113238171A (en) | 2021-05-13 | 2021-05-13 | Remote and rapid positioning and judging method for electric secondary circuit fault |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113238171A (en) |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02188120A (en) * | 1989-01-11 | 1990-07-24 | Nissin Electric Co Ltd | Secondary circuit disconnection detector for potential transformer |
| DE10242577A1 (en) * | 2002-09-11 | 2004-04-01 | Rainer Wieshoff | Security system esp. for guarding personal computer against theft, has cut-out switch retained open by device power-supply mains voltage |
| CN103487713A (en) * | 2013-09-23 | 2014-01-01 | 国家电网公司 | Multipoint earthing trouble shooting equipment for substation voltage transformer secondary circuit |
| CN204179753U (en) * | 2014-10-15 | 2015-02-25 | 上海华仪配电自动化有限公司 | A kind of cable branch demarcation circuit breaker cabinet |
| CN204497844U (en) * | 2015-03-24 | 2015-07-22 | 兴安供电公司 | A kind of switch cubicle Secondary Circuit of Potential Transformer counnter attack feed system |
| CN105277851A (en) * | 2015-10-16 | 2016-01-27 | 国网甘肃省电力公司天水供电公司 | Distribution network fault judgment searching and positioning system |
| CN108092248A (en) * | 2018-02-14 | 2018-05-29 | 广西思维奇电力工程咨询有限公司 | A kind of intelligent distributed feeder line fault of distribution network quickly cuts off shielding system and its method |
| CN108418304A (en) * | 2018-03-09 | 2018-08-17 | 国家电网公司 | Substation secondary circuit state monitoring method, apparatus and system |
| CN109507528A (en) * | 2018-11-15 | 2019-03-22 | 国网山西省电力公司大同供电公司 | A kind of 10kV overhead transmission line lightning-caused breaking warning device based on fault current detection |
| CN109523042A (en) * | 2018-12-04 | 2019-03-26 | 国网山东省电力公司汶上县供电公司 | Shorten the method for Substation secondary circuit corrective maintenance time using planar bar code technology |
| CN109725247A (en) * | 2018-12-18 | 2019-05-07 | 蒂姆维澳(上海)网络技术有限公司 | A kind of circuit board remote maintenance support method and system |
| CN111157841A (en) * | 2019-12-25 | 2020-05-15 | 国网浙江省电力有限公司台州供电公司 | Fault quick positioning device for secondary circuit of electric operation type isolating switch |
| CN111934291A (en) * | 2020-07-21 | 2020-11-13 | 广东电网有限责任公司 | Method for judging circuit breaker tripping due to stealing and electrical tripping |
-
2021
- 2021-05-13 CN CN202110522645.1A patent/CN113238171A/en active Pending
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02188120A (en) * | 1989-01-11 | 1990-07-24 | Nissin Electric Co Ltd | Secondary circuit disconnection detector for potential transformer |
| DE10242577A1 (en) * | 2002-09-11 | 2004-04-01 | Rainer Wieshoff | Security system esp. for guarding personal computer against theft, has cut-out switch retained open by device power-supply mains voltage |
| CN103487713A (en) * | 2013-09-23 | 2014-01-01 | 国家电网公司 | Multipoint earthing trouble shooting equipment for substation voltage transformer secondary circuit |
| CN204179753U (en) * | 2014-10-15 | 2015-02-25 | 上海华仪配电自动化有限公司 | A kind of cable branch demarcation circuit breaker cabinet |
| CN204497844U (en) * | 2015-03-24 | 2015-07-22 | 兴安供电公司 | A kind of switch cubicle Secondary Circuit of Potential Transformer counnter attack feed system |
| CN105277851A (en) * | 2015-10-16 | 2016-01-27 | 国网甘肃省电力公司天水供电公司 | Distribution network fault judgment searching and positioning system |
| CN108092248A (en) * | 2018-02-14 | 2018-05-29 | 广西思维奇电力工程咨询有限公司 | A kind of intelligent distributed feeder line fault of distribution network quickly cuts off shielding system and its method |
| CN108418304A (en) * | 2018-03-09 | 2018-08-17 | 国家电网公司 | Substation secondary circuit state monitoring method, apparatus and system |
| CN109507528A (en) * | 2018-11-15 | 2019-03-22 | 国网山西省电力公司大同供电公司 | A kind of 10kV overhead transmission line lightning-caused breaking warning device based on fault current detection |
| CN109523042A (en) * | 2018-12-04 | 2019-03-26 | 国网山东省电力公司汶上县供电公司 | Shorten the method for Substation secondary circuit corrective maintenance time using planar bar code technology |
| CN109725247A (en) * | 2018-12-18 | 2019-05-07 | 蒂姆维澳(上海)网络技术有限公司 | A kind of circuit board remote maintenance support method and system |
| CN111157841A (en) * | 2019-12-25 | 2020-05-15 | 国网浙江省电力有限公司台州供电公司 | Fault quick positioning device for secondary circuit of electric operation type isolating switch |
| CN111934291A (en) * | 2020-07-21 | 2020-11-13 | 广东电网有限责任公司 | Method for judging circuit breaker tripping due to stealing and electrical tripping |
Non-Patent Citations (2)
| Title |
|---|
| 孔令波: "基于二维码技术的变电站资料管理分析", 电力设备管理, no. 6, pages 195 - 196 * |
| 高挺等: "隔离开关二次回路故障快速定位装置的研制", 浙江电力, vol. 39, no. 3, pages 43 - 49 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108155717B (en) | FA anti-error checking method of power distribution main station based on power grid operation data | |
| CN109459664A (en) | A kind of detection of distribution network failure and positioning analysis system | |
| CN107238774B (en) | State monitoring system for drop-out fuse | |
| CN110941918A (en) | Intelligent substation fault analysis system | |
| CN104677417A (en) | Fault detection system and method for power transmission line | |
| CN101738565A (en) | Adaptive fault indicator | |
| CN104090208A (en) | Voltage-type power distribution network fault processing method | |
| CN102116823A (en) | System for automatically judging and positioning faults of automatic blocking and continuous railway power lines in railway distribution network | |
| CN105242626A (en) | Line safety intelligent auxiliary monitoring system | |
| CN106443362A (en) | Power distribution network fault detection system | |
| CN104360237A (en) | Intelligent on-line distinguishing method for main equipment failures of regional power grid | |
| CN103163402B (en) | Relay protection device state monitoring apparatus based on secondary circuit and monitoring method | |
| CN102636745A (en) | Real-time online monitoring device for electrical life of circuit breaker and monitoring method | |
| CN108199477B (en) | Remote intelligent monitoring method and equipment for faults of AC/DC system of transformer substation | |
| CN112018887B (en) | Distribution network feeder automatic operation process supervision and analysis method | |
| CN106646116A (en) | Trouble shooting and locating method for power distribution network | |
| CN113238171A (en) | Remote and rapid positioning and judging method for electric secondary circuit fault | |
| CN204613374U (en) | A kind of DC earthing pick-up unit of electric system and system | |
| CN111142059A (en) | Intelligent detection device and method for PT unit of outdoor ring main unit | |
| CN205091588U (en) | Supplementary monitoring system of circuit safety intelligence | |
| CN112202145B (en) | Method and device for preventing false outlet of in-situ microcomputer relay protection device | |
| CN208013356U (en) | A kind of on-line early warning system of built-in arc light monitoring | |
| CN206132904U (en) | Novel wisdom fault indication system of 10kv circuit | |
| CN210129768U (en) | Novel distribution network data acquisition terminal | |
| CN112531653A (en) | Distribution network fault management method based on distribution automation |
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 |