CN217307343U - Intelligent management system for grounding wire - Google Patents
Intelligent management system for grounding wire Download PDFInfo
- Publication number
- CN217307343U CN217307343U CN202220371938.4U CN202220371938U CN217307343U CN 217307343 U CN217307343 U CN 217307343U CN 202220371938 U CN202220371938 U CN 202220371938U CN 217307343 U CN217307343 U CN 217307343U
- Authority
- CN
- China
- Prior art keywords
- grounding
- ground wire
- wire
- ground
- management system
- 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.)
- Active
Links
Images
Classifications
-
- 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
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
- Y04S40/126—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wireless data transmission
Landscapes
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
The utility model discloses an intelligent management system for ground wires, which comprises an electrical monitoring management system, a monitoring device of a ground wire manager and a ground wire management cabinet; the electrical monitoring management system is connected with a grounding wire and used for detecting three-phase grounding, two-phase grounding and single-phase grounding conditions of a circuit, a Beidou user terminal is installed at the grounding end of the grounding wire and used for collecting position information of the grounding wire, and the electrical monitoring management system and the Beidou are used for connecting a terminal with a grounding wire management cabinet and transmitting the three-phase grounding, two-phase grounding and single-phase grounding conditions of the circuit and the position information of the grounding wire to the grounding wire management cabinet; the ground wire management machine monitoring device is characterized in that a proximity sensor is additionally arranged on a ground wire cabinet to monitor the ground wire in the cabinet, and the state change information of the ground wire is transmitted to the ground wire management cabinet. The utility model discloses can detect the power line ground connection condition, effectively prevent that the earth connection from omitting, show the use of earth connection position, real time monitoring earth connection.
Description
Technical Field
The utility model belongs to the technical field of electric power engineering, concretely relates to earth connection intelligent management system.
Background
When voltage accidentally appears on the power-off equipment and the power distribution section, the ground wire can effectively ensure the safety of power workers, and is an important ring in the transformation and maintenance operation of a distribution network. After the operation is finished, all grounding wires need to be detached, and the operation process mainly depends on a work ticket system and the execution degree of field operating personnel on safety regulations. Under the condition that the transformation and maintenance working points of the power transmission line are multiple and the area is wide, the occurrence probability of earth leakage and earth disconnection or artificial malicious short circuit setting is very high.
Under the prior art, the power plant usually adopts the platform account system or intelligent earth connection cabinet to carry out registration type management to the earth connection, but the uncontrollable factor is more, has the potential safety hazard in-process manual operation, and the procedure is comparatively loaded down with trivial details, can not adapt to the needs of present high-efficient work. According to statistics, the conventional ground wire management accounts for 33% of all power system faults due to accidents caused by omission.
SUMMERY OF THE UTILITY MODEL
To prior art's defect, the utility model aims to solve the technical problem that an earth connection intelligent management system is just provided detects the use of power line ground connection condition, demonstration earth connection position, real time monitoring earth connection.
In order to solve the technical problem, the utility model adopts the following technical scheme: an intelligent management system for a grounding wire comprises an electrical monitoring management system, a grounding wire manager monitoring device and a grounding wire management cabinet; the electrical monitoring management system is connected with a grounding wire and used for detecting the three-phase grounding, two-phase grounding and single-phase grounding conditions of the circuit, a Beidou user terminal is installed at the grounding end of the grounding wire and used for acquiring the position information of the grounding wire, and the electrical monitoring management system and the Beidou are used for connecting the terminal with a grounding wire management cabinet and transmitting the three-phase grounding, two-phase grounding and single-phase grounding conditions of the circuit and the position information of the grounding wire to the grounding wire management cabinet; the ground wire management machine monitoring device is characterized in that a proximity sensor is additionally arranged on the ground wire cabinet to monitor the ground wire in the cabinet, and the state change information of the ground wire is transmitted to the ground wire management cabinet.
Preferably, the Beidou user terminal adopts a battery power supply mode and is connected with the ground wire management cabinet through a wireless gateway.
Preferably, the detection distance of the proximity sensor is 20-300 mm, and the proximity sensor is communicated with the ground wire management cabinet in an RS-485 mode.
Preferably, the electrical monitoring management system includes a plurality of receiver device sets, each group of ground wires is correspondingly connected with one ground stud, and each receiver device set is correspondingly connected with one group of ground wires.
The utility model discloses a technical scheme, can detect the power line ground connection condition, effectively prevent that the earth connection from omitting, show the use of earth connection position, real time monitoring earth connection, reduce and avoid electric power system to break down or take place dangerous accident even. The operation and maintenance personnel can pay attention to the specific position of each grounding wire in real time by checking the grounding wire management cabinet system.
The utility model discloses a specific technical scheme and the beneficial effect that brings will give detailed disclosure in the following embodiment in combination with the accompanying drawings.
Drawings
The invention will be further described with reference to the accompanying drawings and specific embodiments:
FIG. 1 is a schematic diagram of current splitting for an electrical monitoring and management system;
fig. 2 is the utility model discloses earth connection intelligent management system's principle structure chart.
Detailed Description
The technical solutions of the embodiments of the present invention are explained and explained below with reference to the drawings of the embodiments of the present invention, but the embodiments described below are only preferred embodiments of the present invention, and not all embodiments. Based on the embodiments in the embodiment, other embodiments obtained by those skilled in the art without any creative work belong to the protection scope of the present invention.
It will be appreciated by those skilled in the art that features from the examples and embodiments described below may be combined with each other without conflict.
Referring to the prior art, a method for detecting a temporary hanging ground wire of an overhaul line based on signal injection is disclosed, as shown in fig. 1, a small current source is connected to the line, and theoretically, when no other ground wire exists, the magnitude of current flowing into the removed ground wire is approximately equal to that of current injected into the current source, and when other ground wires exist, the current on the undetached ground wire is shunted and reduced, so that whether other ground wires exist can be detected by comparing the current on the last group of undetached ground wires with the total injected current. If other grounding wires exist, the device reminds engineers to search and remove the grounding wires, and after the grounding wires are removed, the last group of grounding wires are used for measuring again to ensure that the other grounding wires are removed. After ensuring that the other earth wires have been completely removed, the device can be removed and then the last group of earth wires can be removed.
The detection device is installed near the last group of ground wires to be removed after all the ground wires are hung and connected before maintenance, one end of the detection device is connected with a maintenance circuit, the other end of the detection device is connected with a grounding body of the ground wires, a middle-frequency-band signal (with better inter-harmonic) is selected to be injected and detected, and the detection device is started again when the last group of ground wires are removed after the maintenance is finished. When three phases are in short circuit (interphase short circuit) but not grounded, a grounding wire can be manually hung to the A-phase line in an off-line manner, a variable frequency signal is respectively injected into each line for detection, the sampling current is analyzed, and if the A-phase and the B-phase detect that the grounding wire exists, AB interphase short circuit is indicated; if the A phase and the C phase both detect the existence of the grounding wire, the AC interphase short circuit is indicated; if only the A phase is detected to have the ground wire, the B, C phase does not have the ground wire, the BC phase may have the interphase short circuit, at the moment, the ground wire is manually hung on the B phase, and the B, C phase is respectively detected to judge whether the BC interphase short circuit exists.
As shown in fig. 2, an intelligent management system for a ground wire includes an electrical monitoring management system, a ground wire manager monitoring device, and a ground wire management cabinet; the electrical monitoring management system is connected with a grounding wire and used for detecting three-phase grounding, two-phase grounding and single-phase grounding conditions of a circuit, a Beidou user terminal is installed at the grounding end of the grounding wire and used for collecting position information of the grounding wire, and the electrical monitoring management system and the Beidou are used for connecting a terminal with a grounding wire management cabinet and transmitting the three-phase grounding, two-phase grounding and single-phase grounding conditions of the circuit and the position information of the grounding wire to the grounding wire management cabinet; the ground wire management machine monitoring device is characterized in that a proximity sensor is additionally arranged on a ground wire cabinet to monitor the ground wire in the cabinet, and the state change information of the ground wire is transmitted to the ground wire management cabinet.
The Beidou user terminal is connected with the ground wire management cabinet through a wireless gateway, and each group of ground wires corresponds to one Beidou user terminal, so that the position corresponding to each group of ground wires can be accurately monitored. The proximity sensor is isolated through a high-speed optical coupler, the detection distance is 20-300 mm, 32 groups of connecting wires can be detected simultaneously, and the proximity sensor and the grounding wire management cabinet are communicated in an RS-485 mode, so that whether the grounding wire is in place or not can be monitored. The electrical monitoring management system comprises a plurality of receiver device sets, each group of ground wires is correspondingly connected with one ground pile, and each receiver device set is correspondingly connected with one group of ground wires. The ground wire management cabinet is used for monitoring the ground wire, has functional modules with the functions of ground wire in-out warehouse operation record, hanging position display, operation record, alarm and the like, and realizes system background management and communication.
The specific flow of this embodiment is as follows:
a, installing a Beidou user terminal at a grounding end of a grounding wire;
b, uploading the name, the number and the time information of the ground wire to a ground wire management cabinet when the ground wire is delivered out of the warehouse;
and C, after the ground wire arrives at the site, the number and the current state (whether the ground wire is hung or dismantled) of the ground wire are sent to a ground wire management cabinet through a receiver, and the data are compared to display which ground pile is hung with which group of ground wires.
D, after the power operation is finished, detecting that the other grounding wires are completely removed, removing the device, and then removing the last group of grounding wires;
e, detecting the state of the ground wire, entering the ground wire into a warehouse after the ground wire is confirmed to be correct, and uploading the name, the number and the time information to a ground wire management cabinet;
and F, monitoring the states of line maintenance and grounding wires in real time in the process from warehouse-out to warehouse-in, and locking or warning related equipment by the grounding wire management cabinet through wireless gateway communication when a power system fails or dangerous accidents occur.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and those skilled in the art should understand that the present invention includes but is not limited to the contents described in the drawings and the above specific embodiments. Any modification which does not depart from the functional and structural principles of the present invention is intended to be included within the scope of the claims.
Claims (4)
1. An intelligent ground wire management system is characterized by comprising an electrical monitoring management system, a ground wire manager monitoring device and a ground wire management cabinet; the electrical monitoring management system is connected with a grounding wire and used for detecting three-phase grounding, two-phase grounding and single-phase grounding conditions of a circuit, a Beidou user terminal is installed at the grounding end of the grounding wire and used for collecting position information of the grounding wire, and the electrical monitoring management system and the Beidou are used for connecting a terminal with a grounding wire management cabinet and transmitting the three-phase grounding, two-phase grounding and single-phase grounding conditions of the circuit and the position information of the grounding wire to the grounding wire management cabinet; the ground wire management machine monitoring device is characterized in that a proximity sensor is additionally arranged on a ground wire cabinet to monitor the ground wire in the cabinet, and the state change information of the ground wire is transmitted to the ground wire management cabinet.
2. The intelligent ground wire management system according to claim 1, wherein the Beidou user terminal is in a battery powered form, and is connected with the ground wire management cabinet through a wireless gateway.
3. The intelligent ground wire management system according to claim 1, wherein the detection distance of the proximity sensor is 20-300 mm, and the proximity sensor is in communication with a ground wire management cabinet in an RS-485 manner.
4. The intelligent management system for ground wires according to claim 1, wherein the electrical monitoring management system comprises a plurality of receiver device sets, each set of ground wires is connected with one ground pile, and each receiver device set is connected with one set of ground wires.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220371938.4U CN217307343U (en) | 2022-02-23 | 2022-02-23 | Intelligent management system for grounding wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220371938.4U CN217307343U (en) | 2022-02-23 | 2022-02-23 | Intelligent management system for grounding wire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217307343U true CN217307343U (en) | 2022-08-26 |
Family
ID=82928240
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220371938.4U Active CN217307343U (en) | 2022-02-23 | 2022-02-23 | Intelligent management system for grounding wire |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217307343U (en) |
-
2022
- 2022-02-23 CN CN202220371938.4U patent/CN217307343U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205665347U (en) | 10kV distribution lines broken string fault detection and positioning system based on three phase voltage electric current | |
| CN101699306B (en) | Method for monitoring current acquisition circuit of electric power secondary system | |
| CN105866615A (en) | 10kV power distribution line disconnection fault judging method based on three-phase voltage current | |
| CN102937675A (en) | Real-time data collecting and fault positioning system of power distribution network and working method thereof | |
| CN202737576U (en) | Intelligent measure-control apparatus used for low voltage power distribution network | |
| CN103698651B (en) | A kind ofly supervise method and the device that D.C. isolation bus is altered mutually | |
| CN102116823A (en) | System for automatically judging and positioning faults of automatic blocking and continuous railway power lines in railway distribution network | |
| CN201893540U (en) | Intelligent radio network dispatching digital-type boundary controller complete equipment | |
| CN202854252U (en) | Real-time data acquisition and fault locating system of power distribution network | |
| CN106597213A (en) | Distributed power transmission and distribution line maintenance operation safety protection digital monitoring system | |
| CN109687590A (en) | A kind of be classified stops send a telegram in reply report method, system | |
| CN104090208A (en) | Voltage-type power distribution network fault processing method | |
| CN110161372A (en) | A kind of phase-to-ground fault detection early warning system | |
| CN205791462U (en) | It is applicable to the transformator broken neutral line monitoring system of low-voltage network | |
| CN105044542B (en) | A kind of temporary ground wire state self checking method of power equipment | |
| CN202025060U (en) | Automatic fault determining and positioning system of railway distribution network automatic blocking and continuous transmission lines | |
| CN106532938A (en) | Monitoring system for middle-and-low-voltage power distribution network | |
| CN217307343U (en) | Intelligent management system for grounding wire | |
| CN109239529B (en) | System and method for preventing hidden danger of power line and warning information | |
| CN216748030U (en) | Stealing and cutting detection system for grounding wire of base station equipment | |
| CN203720293U (en) | Device used for monitoring DC insulation bus interaction | |
| CN114002617A (en) | Grounding wire state on-line monitoring device based on indirect current injection technology | |
| CN212111743U (en) | Single-phase earth fault detection system of line selection device for neutral point ungrounded system | |
| CN108258648A (en) | A kind of low-voltage network malfunction monitoring localization method | |
| CN211124328U (en) | Safety bolt state monitoring system based on industrial wireless network |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |