CN214506661U - System based on low-voltage transformer area line loss rapid positioning - Google Patents
System based on low-voltage transformer area line loss rapid positioning Download PDFInfo
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- CN214506661U CN214506661U CN202023139635.XU CN202023139635U CN214506661U CN 214506661 U CN214506661 U CN 214506661U CN 202023139635 U CN202023139635 U CN 202023139635U CN 214506661 U CN214506661 U CN 214506661U
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- 238000012544 monitoring process Methods 0.000 claims abstract description 48
- 230000008447 perception Effects 0.000 claims abstract description 6
- 238000010586 diagram Methods 0.000 claims description 17
- 230000005611 electricity Effects 0.000 claims description 12
- 230000016507 interphase Effects 0.000 claims description 12
- 238000004891 communication Methods 0.000 claims description 6
- 238000011084 recovery Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 2
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- 230000009467 reduction Effects 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 4
- 230000032683 aging Effects 0.000 description 3
- 230000006399 behavior Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
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- 238000010276 construction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/40—Display of information, e.g. of data or controls
Abstract
The utility model relates to a system based on quick location of low pressure platform district line loss belongs to smart power grids field technical field, including platform district transformer, platform district master switch, low pressure branch switch, secondary branch switch, user inlet wire monitoring unit, batch meter, feeder pillar monitoring unit, intelligent load scheduling adjusting device, terminal electric wire netting intelligence perception terminal and intelligent load scheduling terminal. The utility model discloses can all-round, solve the problem of low pressure platform district line loss systematized, effectively promote lean line loss to administer and platform district management and control effect from anti-electricity-theft, energy saving and consumption reduction, extension batch meter life, reduction equipment investment, reduction fortune dimension work load etc. aspect.
Description
Technical Field
The utility model relates to a system based on low pressure platform district line loss location fast belongs to electric power fortune dimension technical field.
Background
Along with the development of the smart power grid, the power utilization acceleration is accelerated, the problems of huge number of power utilization users, complex power utilization behaviors, high fault positioning difficulty, low power grid monitoring level and the like are presented, and the method specifically comprises the following aspects:
(1) the user variable relationship does not correspond. The national network system always requires to strengthen the field construction quality and ensure the correspondence of the household meter relationship since the large-scale replacement of the intelligent electric meter, but the existing acquisition equipment cannot realize the automatic identification of the plug-and-play acquisition and the electric meter asset relationship, and the field conditions are different, so the household meter relationship is not in correspondence sometimes;
(2) the inter-phase load of the low-voltage transformer area is unbalanced. The low-voltage transformer area is mainly based on residential life electricity, the load property of the low-voltage transformer area determines that the inter-phase load of the transformer area can often generate an unbalanced phenomenon, particularly for the rural low-voltage transformer area, the inter-phase load unbalanced rate can be as high as more than 60%, and the phenomenon that the line loss of the low-voltage transformer area is high can be caused by the unbalanced rate;
(3) and the line loss subsection lean calculation of the transformer area cannot be realized. Under the restriction of the computing power of the electricity information acquisition system and the level of the existing equipment, the transformer area line loss model only configures a transformer area general table to a sub-table of each user, the calculation is only rough calculation taking a transformer area as a unit, and is not subdivided into a meter box and a 0.4KV branch line, so that accurate support cannot be provided for lean management of transformer area line loss;
(4) the concentrator and the collector have single functions. The narrow-band concentrator can only read data of a daily frozen electric energy meter, voltage, current and electric energy data of the wide-band concentrator in an hour level, the II type concentrator and the II collector can only realize the acquisition and reading of the electric energy data in the hour level, and the electric energy meter cannot actively report events and data in time.
Therefore, improvements are urgently needed.
SUMMERY OF THE UTILITY MODEL
In order to overcome the shortcoming among the above-mentioned prior art, the utility model discloses a system based on low-voltage transformer district line loss quick location, the key problem of stopping reporting to the police of the electric incident, the ageing early warning of circuit, the electric energy meter is out of alignment and is reported, the suspected intelligent perception of stealing electric early warning incident of stealing, all-round simultaneously, solve the problem of low-voltage transformer district line loss systematized, from preventing electricity theft, energy saving and consumption reduction, extension electric energy meter life, reduce equipment investment, reduce the aspect such as fortune dimension work load and effectively promoted the benefit line loss to administer and transformer district management and control effect.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
system based on quick location of low pressure platform district line loss includes:
transformer in transformer area: for transmitting electrical energy;
a concentrator: the system comprises a transformer, a metering box, a concentrator, a transformer area, a calibration transformer, a power supply and a power supply, wherein the transformer area is electrically connected with the transformer area and used for automatically identifying and checking the hanging connection relationship between the calibration transformer area and the metering box, accurately acquiring real-time electric parameters detected by the metering box and displaying the electric parameters on the concentrator;
a platform area main switch: the concentrator is electrically connected with the concentrator and is used for controlling the power supply on-off of the bus line;
low-voltage branch switch: the power supply switching device is electrically connected with the main switch of the transformer area and is used for controlling the power supply switching of different low-voltage branch circuits;
a secondary branch switch: the low-voltage branch switch is electrically connected with the low-voltage branch switch and is used for controlling the power supply on-off of the secondary branch circuit;
branch box monitoring unit: the system is used for identifying the user-to-user relationship, monitoring the working states of the low-voltage branch switch and the secondary branch switch, the operating state of the metering box and the operating state of the connecting circuit, and monitoring the power failure and recovery events of the connecting circuit, the transformer of the transformer area and the metering box;
terminal electric wire netting intelligent perception terminal: the branch box monitoring unit is electrically connected with the secondary branch switch and is in communication connection with the branch box monitoring unit, and the branch box monitoring unit is used for acquiring data information in the branch box monitoring unit, analyzing and performing suspected electricity stealing early warning, and simultaneously drawing a circuit topology structure diagram and a circuit path marking diagram and displaying the line topology structure diagram and the circuit path marking diagram on an externally connected GIS platform;
user inlet wire monitoring unit: the intelligent sensing terminal is electrically connected with the tail end power grid intelligent sensing terminal and is used for collecting the power utilization information of the user and uploading the collected information data to the tail end power grid intelligent sensing terminal;
intelligent load scheduling terminal: the device is used for monitoring the interphase load of the connecting circuit and automatically adjusting the interphase load imbalance among the connecting circuits;
the detected information data are uploaded to the terminal power grid intelligent sensing terminal through the branch box monitoring unit, the terminal power grid intelligent sensing terminal carries out real-time monitoring and calculation on the received information data, electric parameters of all nodes on the connecting line are displayed in real time, and a fault point can be immediately positioned when the connecting line has a fault.
And the intelligent load scheduling adjusting device is in communication connection with the intelligent load scheduling terminal and is used for receiving an adjusting instruction sent by the intelligent load scheduling terminal to adjust the interphase load imbalance among the connecting lines.
Furthermore, the branch box monitoring unit is connected with the tail end power grid intelligent sensing terminal through RS-485.
Compared with the prior art the utility model discloses there are following characteristics and beneficial effect:
through the setting of a branch box monitoring unit and the real-time measurement and calculation of a tail-end power grid intelligent sensing terminal, the problems of reporting of a power failure and recovery event, line aging early warning, misalignment warning of an electric energy meter, intelligent sensing of a suspected electricity stealing early warning event and line loss of a low-voltage transformer area are mainly solved, and the problem of low-voltage transformer area line loss is comprehensively and systematically solved; the electric energy meter is not changed for 6 to 8 years any more by real-time supervision of the branch box monitoring unit, so that the cost is saved; the lean management of the line loss of the transformer area is realized by reporting suspected electricity stealing early warning; by arranging the concentrator, the working requirements of a headquarters on automatic analysis and display of the operation monitoring of the distribution network can be supported; through the combination of software and hardware, the anti-electricity-stealing capacity is effectively improved, the power-saving and consumption-reducing effects are effectively assisted, the power supply quality of a user side is comprehensively monitored, the service life of the electric energy meter is prolonged, the equipment investment is reduced, and the operation and maintenance workload is reduced.
Drawings
Fig. 1 is a hardware connection diagram of the present invention.
Wherein the reference numerals are: 1. a transformer in the transformer area; 2. a concentrator; 3. a platform area main switch; 4. a low voltage branch switch; 5. a secondary branch switch; 6. a user incoming line monitoring unit; 7. an intelligent load scheduling adjusting device; 8. a branch box monitoring unit; 9. an intelligent load scheduling terminal; 10. terminal electric wire netting intelligent perception terminal.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
As shown in fig. 1, the system for fast positioning based on line loss of low-voltage transformer area includes:
transformer 1: for transmitting electrical energy;
the concentrator 2: the system is electrically connected with the transformer 1 of the transformer area and used for automatically identifying and checking the hanging connection relation between the transformer 1 of the verification transformer area and the metering box, accurately acquiring real-time electric parameters detected by the metering box and displaying the electric parameters on the concentrator 2;
a platform main switch 3: the concentrator is electrically connected with the concentrator 2 and used for controlling the on-off of power supply of the bus line;
low-voltage branch switch 4: the power supply switching device is electrically connected with the transformer area main switch 3 and is used for controlling the power supply switching of different low-voltage branch circuits;
secondary branch switch 5: the low-voltage branch switch 4 is electrically connected with the power supply of the secondary branch circuit and is used for controlling the power supply on-off of the secondary branch circuit;
branch box monitoring unit 8: the system is used for identifying the user-to-user relationship, monitoring the working states of the low-voltage branch switch 4 and the secondary branch switch 5, the operation state of the metering box and the operation state of the connecting line, and monitoring the power failure and recovery events of the connecting line, the transformer 1 of the transformer area and the metering box;
terminal electric wire netting intelligent perception terminal 10: the secondary branch switch 5 is electrically connected with the branch box monitoring unit 8 and is in communication connection with the branch box monitoring unit 8, and the secondary branch switch is used for acquiring data information in the branch box monitoring unit 8, analyzing and performing suspected electricity stealing early warning, and simultaneously drawing a line topology structure diagram and a line routing label diagram and displaying the line topology structure diagram and the line routing label diagram on an external GIS platform;
user incoming line monitoring unit 6: the intelligent sensing terminal is electrically connected with the tail end power grid intelligent sensing terminal 10 and is used for collecting the power utilization information of the user and uploading the collected information data to the tail end power grid intelligent sensing terminal 10;
intelligent load scheduling terminal 9: the device is used for monitoring the interphase load of the connecting circuit and automatically adjusting the interphase load imbalance among the connecting circuits;
the detected information data are uploaded to the tail end power grid intelligent sensing terminal 10 through the branch box monitoring unit 8, the tail end power grid intelligent sensing terminal 10 carries out real-time monitoring and calculation on the received information data, electric parameters of all nodes on the connecting line are displayed in real time, and when the connecting line fails, a fault point can be located immediately.
Particularly, the monitoring of the running state of the metering box by the branch box monitoring unit 8 comprises the real-time monitoring of the running quality level of the metering box, and the adjustment service time of the metering box is adjusted according to the running quality level of the metering box.
Particularly, the monitoring of the operation state of the connection circuit by the branch box monitoring unit 8 comprises real-time sensing and early warning of the power quality of the transformer area, detection of power factors of the transformer area, harmonic analysis of voltage and current of the connection circuit, and early warning of overlarge frequency deviation of the transformer area.
Furthermore, the intelligent load dispatching system further comprises an intelligent load dispatching adjusting device 7 in communication connection with the intelligent load dispatching terminal 9, and the intelligent load dispatching adjusting device 7 is used for receiving an adjusting instruction sent by the intelligent load dispatching terminal 9 to adjust the interphase load imbalance among the connecting lines.
Particularly, the suspected electricity stealing early warning of the terminal power grid intelligent sensing terminal 10 includes electricity stealing behavior early warning, metering box misalignment early warning and line aging early warning.
Further, the branch box monitoring unit 8 is connected with the tail end power grid intelligent sensing terminal 10 through RS-485.
The utility model discloses a theory of operation: the intelligent sensing terminal 10 of the tail end power grid carries out real-time monitoring and calculation on received information data, analyzes the change conditions of the metering box, the low-voltage branch switch 4, the secondary branch switch 5 and the connecting circuit and carries out suspected electricity stealing early warning, simultaneously automatically draws a circuit topology structure diagram and a circuit path marking diagram and displays the line topology structure diagram and the line path marking diagram on an external GIS platform, displays the electrical parameters of all nodes on the connecting circuit in real time, can immediately position a fault point when the circuit has a fault, comprehensively and systematically solves the problem of line loss of a low-voltage transformer area, and effectively promotes beneficial line loss control and transformer area management and control effects in the aspects of electricity stealing prevention, energy saving, consumption reduction, prolonging the service life of the metering box, reducing equipment investment, reducing operation and maintenance workload and the like.
It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Claims (3)
1. System based on low pressure platform district line loss is fixed a position fast, its characterized in that: the method comprises the following steps:
transformer (1): for transmitting electrical energy;
concentrator (2): the system is electrically connected with the transformer (1) of the transformer area and used for automatically identifying and checking the hanging connection relation between the transformer (1) of the verification transformer area and the metering box, accurately acquiring real-time electric parameters detected by the metering box and displaying the electric parameters on the concentrator (2);
platform area master switch (3): the concentrator is electrically connected with the concentrator (2) and is used for controlling the on-off of the power supply of the bus line;
low voltage branch switch (4): the power supply switching device is electrically connected with the distribution room main switch (3) and is used for controlling the power supply switching of different low-voltage branch circuits;
secondary branch switch (5): the low-voltage branch switch (4) is electrically connected and used for controlling the power supply on-off of the secondary branch circuit;
branch box monitoring unit (8): the system is used for identifying a user variable relationship, monitoring the working states of the low-voltage branch switch (4) and the secondary branch switch (5), the running state of the metering box and the running state of the connecting line, and monitoring the power failure and recovery events of the connecting line, the transformer (1) of the transformer area and the metering box;
terminal electric wire netting intelligent perception terminal (10): the branch box monitoring system is electrically connected with the secondary branch switch (5), is in communication connection with the branch box monitoring unit (8), and is used for acquiring data information in the branch box monitoring unit (8), analyzing and performing suspected electricity stealing early warning, and simultaneously drawing a circuit topology structure diagram and a circuit path marking diagram and displaying the line topology structure diagram and the circuit path marking diagram on an external GIS platform;
user incoming line monitoring unit (6): the intelligent sensing terminal is electrically connected with the tail end power grid intelligent sensing terminal (10) and is used for collecting the power utilization information of the user and uploading the collected information data to the tail end power grid intelligent sensing terminal (10);
intelligent load scheduling terminal (9): the device is used for monitoring the interphase load of the connecting circuit and automatically adjusting the interphase load imbalance among the connecting circuits;
the detected information data are uploaded to the terminal power grid intelligent sensing terminal (10) through the branch box monitoring unit (8), the terminal power grid intelligent sensing terminal (10) carries out real-time monitoring and calculation on the received information data, electric parameters of all nodes on the connecting line are displayed in real time, and a fault point can be located immediately when the connecting line has a fault.
2. The system for rapidly positioning line loss of the low-voltage transformer area according to claim 1, wherein: the intelligent load dispatching system is characterized by further comprising an intelligent load dispatching adjusting device (7) in communication connection with the intelligent load dispatching terminal (9), wherein the intelligent load dispatching adjusting device (7) is used for receiving an adjusting instruction sent by the intelligent load dispatching terminal (9) to adjust interphase load imbalance among connecting lines.
3. The system for rapidly positioning line loss of the low-voltage transformer area according to claim 1, wherein: the branch box monitoring unit (8) is connected with the tail end power grid intelligent sensing terminal (10) through RS-485.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023139635.XU CN214506661U (en) | 2020-12-23 | 2020-12-23 | System based on low-voltage transformer area line loss rapid positioning |
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| CN202023139635.XU CN214506661U (en) | 2020-12-23 | 2020-12-23 | System based on low-voltage transformer area line loss rapid positioning |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114552544A (en) * | 2022-02-16 | 2022-05-27 | 浙江双成电气有限公司 | Line loss fault monitoring system, line loss monitoring method and line loss monitoring device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114552544A (en) * | 2022-02-16 | 2022-05-27 | 浙江双成电气有限公司 | Line loss fault monitoring system, line loss monitoring method and line loss monitoring device |
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