CN217820593U - Tower grounding resistance on-line monitoring system - Google Patents
Tower grounding resistance on-line monitoring system Download PDFInfo
- Publication number
- CN217820593U CN217820593U CN202221977766.1U CN202221977766U CN217820593U CN 217820593 U CN217820593 U CN 217820593U CN 202221977766 U CN202221977766 U CN 202221977766U CN 217820593 U CN217820593 U CN 217820593U
- Authority
- CN
- China
- Prior art keywords
- magnetic circuit
- closed magnetic
- unit
- monitoring system
- line
- 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
Abstract
The utility model discloses a shaft tower ground resistance on-line monitoring system, including ground resistance monitoring devices, ground resistance monitoring devices includes first closed magnetic circuit, second closed magnetic circuit, is used for applying excitation signal's excitation signal generating unit, the electromotive force acquisition unit that is used for gathering the electromotive force signal on the second closed magnetic circuit and is used for gathering the current signal's on the ground lead return circuit to the first closed magnetic circuit; the first closed magnetic circuit and the second closed magnetic circuit are mutually independent and in a tightly coupled state; the ground lead passes through the first closed magnetic circuit and the second closed magnetic circuit. The monitoring system can measure the ground resistance in real time, quickly, accurately and reliably, can facilitate line operation and maintenance personnel to find and process tower ground faults in time and strengthen the state monitoring of the power transmission line, thereby comprehensively improving the intelligent operation and maintenance level and capacity of the power transmission line, improving the lightning resistance level of the line and reducing the lightning trip-out rate.
Description
Technical Field
The utility model relates to a shaft tower earth resistance on-line monitoring system.
Background
The transmission line tower grounding device is used as an accessory facility of main equipment of a power grid, has no production functions such as direct volatilization, transmission, transformation and the like, but plays an important role in the safe and stable operation of the power grid. Influenced by the operating environment of the power transmission line, the tower grounding device inevitably has corrosion and breakage, and is damaged by external force and other conditions, so that the grounding resistance is unqualified, the lightning resistance level of the power transmission line is reduced, the lightning trip risk of the line is increased, and the power supply reliability is influenced.
At present, a state monitoring device on the market is still blank for monitoring the power transmission grounding resistance, and the traditional manual grounding resistance monitoring mode has the defects of time and labor consumption, low working quality and efficiency and low intelligent operation and maintenance level.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a shaft tower earth resistance on-line monitoring system to solve the problem that traditional manual monitoring earth resistance is inefficient.
In order to solve the technical problem, the utility model provides a shaft tower ground resistance on-line monitoring system, including ground resistance monitoring devices, ground resistance monitoring devices includes first closed magnetic circuit, second closed magnetic circuit, is used for exerting excitation signal's excitation signal generating unit, the electromotive force acquisition unit that is used for gathering the electromotive force signal on the second closed magnetic circuit and is used for gathering the current signal's on the ground lead return circuit current acquisition unit to first closed magnetic circuit; the first closed magnetic circuit and the second closed magnetic circuit are mutually independent and in a tightly coupled state; the ground lead passes through the first closed magnetic circuit and the second closed magnetic circuit.
Further, the system also comprises wireless transmission equipment which is respectively connected with the electromotive force acquisition unit and the current acquisition unit.
Further, the wireless transmission device comprises a WIFI unit and/or a GSM unit and/or a CDMA unit and/or a GPRS module and/or a 4G unit and/or a 5G unit.
Further, the system also comprises a PC terminal and/or a mobile terminal which are in communication connection with the wireless transmission device.
Further, the system also comprises a power supply for supplying electric energy to the excitation signal generating unit, the electromotive force collecting unit, the current collecting unit and the wireless transmission equipment.
Furthermore, the power supply comprises a storage battery which is respectively connected with the excitation signal generating unit, the electromotive force collecting unit, the current collecting unit and the wireless transmission equipment.
Further, the system also comprises a solar photovoltaic functional system electrically connected with the storage battery.
The utility model has the advantages that: the monitoring system can measure the ground resistance in real time, quickly, accurately and reliably, can facilitate line operation and maintenance personnel to find and process tower ground faults in time and strengthen the state monitoring of the power transmission line, thereby comprehensively improving the intelligent operation and maintenance level and capacity of the power transmission line, improving the lightning resistance level of the line and reducing the lightning trip-out rate.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
fig. 1 is a schematic view of an embodiment of the present invention.
Fig. 2 is a schematic view of another embodiment of the present invention.
Fig. 3 is a monitoring schematic diagram of an embodiment of the present invention.
Detailed Description
The tower ground resistance on-line monitoring system shown in fig. 1 comprises a ground resistance monitoring device, wherein the ground resistance monitoring device comprises a first closed magnetic circuit, a second closed magnetic circuit, an excitation signal generating unit for applying an excitation signal to the first closed magnetic circuit, an electromotive force collecting unit for collecting an electromotive force signal on the second closed magnetic circuit and a current collecting unit for collecting a current signal on a ground lead loop; the first closed magnetic circuit and the second closed magnetic circuit are mutually independent and in a tightly coupled state; the ground lead passes through the first closed magnetic circuit and the second closed magnetic circuit.
The tower grounding resistance on-line monitoring system has the following working principle: as shown in fig. 3, a first closed magnetic circuit N E As a voltage measuring circuit, a second closed magnetic circuit N I As a current measuring loop, the ground lead is passed through both magnetic circuits. When measuring, firstly, an excitation signal e is applied to the first closed magnetic circuit by the excitation signal generating unit 1 Then, an induced electromotive force e is coupled out on the second closed magnetic circuit 2 At an electromotive force e 2 Will generate an induced current i (as a secondary side) in the ground lead loop (as a primary side) 2 Collecting electromotive force e through an electromotive force collecting unit 2 And collecting the induced current i by using the existing current collecting unit 2 Then, the principle of ohm theory can be followed
And calculating to obtain the grounding resistance of the tower grounding channel.
The monitoring system can measure the ground resistance in real time, quickly, accurately and reliably, can facilitate line operation and maintenance personnel to find and process tower ground faults in time and strengthen the state monitoring of the power transmission line, thereby comprehensively improving the intelligent operation and maintenance level and capacity of the power transmission line, improving the lightning resistance level of the line and reducing the lightning trip-out rate.
According to one embodiment of the application, the system further comprises a wireless transmission device connected with the electromotive force collection unit and the current collection unit respectively. The measured data is remotely transmitted to the remote terminal by adopting a wireless network, so that operation and maintenance personnel can conveniently and remotely master the health condition of the line equipment.
According to one embodiment of the application, the wireless transmission equipment comprises a WIFI unit and/or a GSM unit and/or a CDMA unit and/or a GPRS module and/or a 4G unit and/or a 5G unit, the communication mode of the wireless transmission equipment is flexible, and WIFI/GSM/CDMA/GPRS/4G/5G can be adopted for network communication.
According to one embodiment of the application, as shown in fig. 2, the system further comprises a PC terminal and/or a mobile terminal in communication connection with the wireless transmission device. The measured data are transmitted to the mobile terminal (such as a mobile phone) or the PC terminal through the wireless transmission device, so that operation and maintenance personnel can conveniently master the health condition of the line equipment, and the working quality and efficiency are improved.
According to one embodiment of the application, the system further comprises a power supply for supplying power to the excitation signal generation unit, the electromotive force acquisition unit, the current acquisition unit and the wireless transmission device.
According to one embodiment of the present application, the power supply includes a storage battery connected to the excitation signal generation unit, the electromotive force collection unit, the current collection unit, and the wireless transmission device, respectively. The storage battery is used for supplying power, so that the power supply stability can be ensured.
According to one embodiment of the application, the system further comprises a solar photovoltaic functionality system electrically connected to the battery. When sunlight is sufficient, surplus electric energy can be stored in the storage battery through the solar photovoltaic functional system so as to meet the energy supply requirement of the detection device in rainy days, the rated output power of the storage battery is 48W, and the rated output voltage is 12V; and the ground resistance detection device and the wireless transmission equipment are respectively powered.
This shaft tower ground resistance on-line monitoring system not only is applicable to the transmission line shaft tower, is applicable to the distribution network line equally, except the electric industry, possesses the practicality equally at other important trades, if all have the suitability popularization nature at telecommunications, meteorology, computer lab, oil field, filling station, mill's ground net etc..
Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.
Claims (7)
1. The tower grounding resistance online monitoring system is characterized by comprising a grounding resistance monitoring device, wherein the grounding resistance monitoring device comprises a first closed magnetic circuit, a second closed magnetic circuit, an excitation signal generating unit for applying an excitation signal to the first closed magnetic circuit, an electromotive force collecting unit for collecting an electromotive force signal on the second closed magnetic circuit and a current collecting unit for collecting a current signal on a grounding lead loop; the first closed magnetic circuit and the second closed magnetic circuit are mutually independent and in a tightly coupled state; the ground lead passes through the first closed magnetic circuit and the second closed magnetic circuit.
2. The tower ground resistance on-line monitoring system of claim 1, further comprising a wireless transmission device connected to the electromotive force collection unit and the current collection unit, respectively.
3. The on-line tower ground resistance monitoring system according to claim 2, wherein the wireless transmission device comprises a WIFI unit and/or a GSM unit and/or a CDMA unit and/or a GPRS module and/or a 4G unit and/or a 5G unit.
4. The on-line tower ground resistance monitoring system according to claim 2 or 3, further comprising a PC terminal and/or a mobile terminal in communication connection with the wireless transmission device.
5. The on-line tower ground resistance monitoring system according to claim 1, further comprising a power supply for supplying power to the excitation signal generating unit, the electromotive force collecting unit, the current collecting unit and the wireless transmission device.
6. The tower ground resistance on-line monitoring system of claim 5, wherein the power supply comprises a storage battery respectively connected with the excitation signal generating unit, the electromotive force collecting unit, the current collecting unit and the wireless transmission device.
7. The on-line tower ground resistance monitoring system according to claim 6, further comprising a solar photovoltaic functional system electrically connected to the storage battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221977766.1U CN217820593U (en) | 2022-07-29 | 2022-07-29 | Tower grounding resistance on-line monitoring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221977766.1U CN217820593U (en) | 2022-07-29 | 2022-07-29 | Tower grounding resistance on-line monitoring system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217820593U true CN217820593U (en) | 2022-11-15 |
Family
ID=83971556
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221977766.1U Active CN217820593U (en) | 2022-07-29 | 2022-07-29 | Tower grounding resistance on-line monitoring system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217820593U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116539963A (en) * | 2023-04-28 | 2023-08-04 | 烟台国网中电电气有限公司 | Method for detecting grounding resistance of grounding down conductor of power transmission line tower |
-
2022
- 2022-07-29 CN CN202221977766.1U patent/CN217820593U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116539963A (en) * | 2023-04-28 | 2023-08-04 | 烟台国网中电电气有限公司 | Method for detecting grounding resistance of grounding down conductor of power transmission line tower |
| CN116539963B (en) * | 2023-04-28 | 2023-11-21 | 烟台国网中电电气有限公司 | Method for detecting grounding resistance of grounding down conductor of power transmission line tower |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101216515B (en) | Powerline pole tower ground resistance measurement method and its tester | |
| CN101958665B (en) | Monitoring method of junction box for photovoltaic module | |
| CN102169135A (en) | Resistive current remote online monitoring system for power transmission line arrester | |
| CN205304271U (en) | Alternating current circuit field energy collection system of impedance characteristic based on transformer | |
| CN217820593U (en) | Tower grounding resistance on-line monitoring system | |
| CN107340432A (en) | Grounding resistance data acquisition and analysis system based on wireless measurement module | |
| CN104655969A (en) | Zinc oxide arrester online monitoring system | |
| CN206658103U (en) | The Check System of low voltage power distribution network leakage current based on Internet of Things | |
| CN203337722U (en) | Voltage and current collecting device of grid overhead transmission line | |
| CN111122958A (en) | Intelligent remote monitoring and accurate positioning system for action of lightning arrester of power transmission line | |
| CN202177421U (en) | Hydrological telemetering terminal device | |
| CN213692648U (en) | Integrated lightning arrester with online monitoring function | |
| CN213843357U (en) | Track stray current and transition resistance's on-line monitoring and calibration circuit | |
| CN201637789U (en) | On-line monitor tele-transferring device for arrester and monitoring system thereof | |
| CN206990675U (en) | A kind of data center intelligent electric meter monitoring system | |
| CN211043488U (en) | Lightning arrester direct current reference voltage test acquisition device based on Zigbee | |
| CN202976322U (en) | Wireless remote IC (integrated circuit) card intelligent water supply controller | |
| CN210863882U (en) | Transmission tower grounding resistance on-line monitoring device based on double measurement modes | |
| CN106300619B (en) | A kind of solar portable charging system and control method based on internet cloud platform | |
| CN202093130U (en) | Partial discharge online monitoring device for distributed cable | |
| CN213398744U (en) | Monitoring device of lightning arrester | |
| CN103604977A (en) | Lightning current monitoring system based on atmospheric humidity | |
| CN106771490A (en) | A kind of OPGW terminal monitorings system | |
| CN107144712A (en) | A kind of intelligent wiring box | |
| CN204405772U (en) | Based on the power collection systems of triones navigation system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |