CN216434326U - Power transmission line ground fault positioning device - Google Patents

Power transmission line ground fault positioning device Download PDF

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Publication number
CN216434326U
CN216434326U CN202122683148.8U CN202122683148U CN216434326U CN 216434326 U CN216434326 U CN 216434326U CN 202122683148 U CN202122683148 U CN 202122683148U CN 216434326 U CN216434326 U CN 216434326U
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CN
China
Prior art keywords
transmission line
signal
ground fault
positioning box
line ground
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.)
Expired - Fee Related
Application number
CN202122683148.8U
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Chinese (zh)
Inventor
王仓继
段勇
余宁泰
邵美阳
常夏
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shaanxi Energy Research Institute Co Ltd
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Shaanxi Energy Research Institute Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
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Priority to CN202122683148.8U priority Critical patent/CN216434326U/en
Application granted granted Critical
Publication of CN216434326U publication Critical patent/CN216434326U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model relates to the technical field of power transmission line fault detection, in particular to a power transmission line ground fault positioning device, which comprises a positioning box and a detection assembly; a signal processing module is arranged in the positioning box and connected with a signal transmission module; the detection assembly comprises a pair of current transformers, and detection conductors are arranged on the two current transformers, the utility model discloses an earth fault signal can be detected through the detection assembly, when the transmission line generates a transverse earth fault or a longitudinal earth fault, the corresponding current transformers can generate zero sequence current; the zero sequence current signal can be transmitted to the signal processing module, data transmission is realized by the signal transmission module after signal processing, technical personnel can judge the ground fault of the corresponding area quickly, and the purpose of solving the fault quickly is realized by accurately checking the data sending position.

Description

Power transmission line ground fault positioning device
Technical Field
The utility model relates to a power transmission line fault detection technical field, in particular to transmission line ground fault positioner.
Background
The power distribution network is densely distributed in urban, rural and mountain areas, is located outdoors in the whole year, and is subjected to the adverse effects of wind, rain, frost, lightning, increasingly severe environmental pollution and the like, and unpredictable human factors are added, so that the probability of failure is very high. Because the power distribution network adopts a radial network, the branches are numerous, the structure is complex, even if a fault line is determined, a fault point is difficult to find, the ground fault positioning technology is still in a theoretical research stage, a plurality of methods are theoretically feasible, but the actual application effect is not ideal, and a plurality of key technical problems in field application are not solved.
SUMMERY OF THE UTILITY MODEL
To the defect among the prior art, the utility model provides a transmission line ground fault positioner can whether real-time detection electric wire netting transmission line produces ground fault and provides the fault location, the rapid processing of being convenient for.
The utility model adopts the technical proposal that: a power transmission line ground fault positioning device comprises a positioning box and a detection assembly; a signal processing module is arranged in the positioning box and connected with a signal transmission module, and the signal processing module is connected with a signal interface arranged on the outer side of the positioning box; the detection assembly comprises a pair of current transformers which can be connected with the signal interface, detection conductors are arranged on the two current transformers, and the two detection conductors are arranged on the horizontal plane in a mutually perpendicular mode.
According to the technical scheme, the ground fault signals can be detected through the detection assembly, the detection conductors mounted on the current transformers are arranged in a mutually perpendicular mode, and when the power transmission line generates transverse ground faults or longitudinal ground faults, the corresponding current transformers can generate zero-sequence currents; the zero sequence current signal can be transmitted to the signal processing module, data transmission is realized by the signal transmission module after signal processing, technical personnel can judge the ground fault of the corresponding area quickly, and the purpose of solving the fault quickly is realized by accurately checking the data sending position.
Furthermore, a power supply is arranged in the positioning box and connected with a power interface arranged on the outer side of the positioning box.
Furthermore, a signal transmission antenna is hinged to the outer side of the positioning box and electrically connected with the signal transmission module.
Furthermore, the signal transmission module is provided with an SIM card slot for installing an SIM card.
Furthermore, the signal interface is inserted with a signal transmission cable, and the signal transmission cable is electrically connected with the current transformer.
Furthermore, the outer peripheral surface of the positioning box is hinged with an installation support, and an installation opening is formed in the installation support.
Furthermore, a waterproof sleeve is sleeved on the positioning box.
Furthermore, a fixing frame is arranged on the current transformer and is used for insulation treatment.
Further, the detection conductor is arranged in a U shape.
The utility model has the advantages that: the utility model can detect the ground fault signal through the detection component, when the transmission line generates the transverse ground fault or the longitudinal ground fault, the corresponding current transformer can generate the zero sequence current; the zero sequence current signal can be transmitted to the signal processing module, and data transmission is realized by using the signal transmission module after signal processing, so that technicians can quickly judge the ground fault of a corresponding area, and the purpose of quickly solving the fault is realized by accurately checking the data sending position; has higher practical value and popularization value.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.
Fig. 1 is a structure diagram of a power transmission line ground fault positioning device provided by the embodiment of the present invention.
Description of the drawings: the positioning box 100, the signal processing module 200, the signal transmission module 300, the signal interface 400, the current transformer 500, the detection conductor 600, the power supply 700, the power interface 800, the signal transmission antenna 900, the SIM card slot 1000, the signal transmission cable 1100, and the fixing frame 1200.
Detailed Description
Here, it is to be noted that the functions, methods, and the like related to the present invention are only conventional adaptive applications of the related art. Therefore, the present invention is an improvement of the prior art, which substantially lies in the connection relationship between hardware, not in the functions and methods themselves, that is, the present invention relates to a few functions and methods, but does not include the improvements proposed in the functions and methods themselves. The present invention is described for better illustration of the function and method for better understanding of the present invention.
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.
It is to be noted that unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the present invention belongs.
Referring to fig. 1, the device for locating a ground fault of a power transmission line according to the present embodiment can locate a ground fault area of the power transmission line, so as to facilitate a technician to quickly remove a fault; the device specifically comprises a positioning box 100 and a detection assembly; a signal processing module 200 is arranged in the positioning box 100, the signal processing module 200 is connected with a signal transmission module 300, and the signal processing module 200 is connected with a signal interface 400 arranged outside the positioning box 100; the detection assembly comprises a pair of current transformers 500 capable of being connected with the signal interface 400, wherein detection conductors 600 are arranged on the two current transformers 500, the two detection conductors 600 are arranged on a horizontal plane in a mutually vertical mode, and the detection conductors 600 in the embodiment are arranged in a U shape.
As shown in fig. 1, with the above arrangement, the positioning apparatus provided in this embodiment can specifically detect a ground fault signal through the detection assembly, and the detection conductors 600 installed on the current transformers 500 are arranged perpendicular to each other, so that when a transmission line generates a transverse ground fault or a longitudinal ground fault, the corresponding current transformer 500 can generate a zero-sequence current; the zero sequence current signal can be transmitted to the signal processing module 200, and after signal processing, data transmission is realized by using the signal transmission module 300, in order to improve data transmission stability, a signal transmission antenna 900 is hinged to the outer side of the positioning box 100 in the embodiment, and the signal transmission antenna 900 is electrically connected with the signal transmission module 300. Signal transmission stability can be ensured by providing the signal transmission antenna 900; in order to realize signal positioning, the signal transmission module 300 of the present embodiment is provided with a SIM card slot 1000 for installing a SIM card. Therefore, an SIM internet of things card can be installed in the SIM card slot 1000, a ground fault position can be obtained through network positioning while a transmission network is provided for data, and a technician can quickly remove faults according to the positioning.
As shown in fig. 1, in practical applications, in the present embodiment, a power supply 700 is disposed in the positioning box 100, and the power supply 700 is connected to a power interface 800 disposed outside the positioning box 100. The power supply 700 can supply power to the whole device, and can also charge the equipment through the power interface 800, so that the equipment is prevented from being powered off.
As mentioned above, the current transformer 500 needs to be connected to the signal processing module 200 to implement data transmission, in this embodiment, a signal transmission cable 1100 is inserted into the signal interface 400, and the signal transmission cable 1100 is electrically connected to the current transformer 500. Thus, the zero sequence current signal generated by the current transformer 500 can be transmitted through the signal transmission cable 1100, and can be transmitted through the network after being processed by the data processing module.
As shown in fig. 1, the device needs to be deployed along a power transmission line when in use, and in this embodiment, an installation support is hinged to the outer peripheral surface of the positioning box 100, and an installation opening is formed in the installation support. And a waterproof sleeve is sleeved on the positioning box 100. Thus, the positioning box 100 can be arranged in a corresponding area of the iron tower through the mounting bracket, and the waterproof sleeve can play a role in protection, so that the positioning box 100 is prevented from being damaged; in addition, in this embodiment, a fixing frame 1200 is disposed on the current transformer 500, and the fixing frame 1200 is subjected to an insulation treatment. The current transformer 500 may be mounted by the fixing frame 1200 to ensure that the two detection conductors 600 are arranged perpendicular to each other.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.

Claims (9)

1. A transmission line ground fault positioning device is characterized in that; comprises a positioning box (100) and a detection assembly;
a signal processing module (200) is arranged in the positioning box (100), the signal processing module (200) is connected with a signal transmission module (300), and the signal processing module (200) is connected with a signal interface (400) arranged on the outer side of the positioning box (100);
the detection assembly comprises a pair of current transformers (500) which can be connected with the signal interface (400), detection conductors (600) are arranged on the two current transformers (500), and the two detection conductors (600) are arranged on the horizontal plane in a mutually vertical mode.
2. The transmission line ground fault locating device of claim 1, characterized in that; a power supply (700) is arranged in the positioning box (100), and the power supply (700) is connected with a power interface (800) arranged on the outer side of the positioning box (100).
3. The transmission line ground fault locating device of claim 1, characterized in that; the outer side of the positioning box (100) is hinged with a signal transmission antenna (900), and the signal transmission antenna (900) is electrically connected with the signal transmission module (300).
4. The transmission line ground fault locating device of claim 1, characterized in that; and the signal transmission module (300) is provided with an SIM card slot (1000) for installing an SIM card.
5. The transmission line ground fault locating device of claim 1, characterized in that; the signal interface (400) is plugged with a signal transmission cable (1100), and the signal transmission cable (1100) is electrically connected with the current transformer (500).
6. The transmission line ground fault locating device of claim 1, characterized in that; the outer peripheral surface of the positioning box (100) is hinged with a mounting support, and a mounting opening is formed in the mounting support.
7. The transmission line ground fault locating device of claim 1, characterized in that; the positioning box (100) is sleeved with a waterproof sleeve.
8. The transmission line ground fault locating device of claim 1, characterized in that; and a fixing frame (1200) is arranged on the current transformer (500), and the fixing frame (1200) is subjected to insulation treatment.
9. The transmission line ground fault locating device of claim 1, characterized in that; the detection conductors (600) are arranged in a U-shape.
CN202122683148.8U 2021-11-04 2021-11-04 Power transmission line ground fault positioning device Expired - Fee Related CN216434326U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202122683148.8U CN216434326U (en) 2021-11-04 2021-11-04 Power transmission line ground fault positioning device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202122683148.8U CN216434326U (en) 2021-11-04 2021-11-04 Power transmission line ground fault positioning device

Publications (1)

Publication Number Publication Date
CN216434326U true CN216434326U (en) 2022-05-03

Family

ID=81335509

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202122683148.8U Expired - Fee Related CN216434326U (en) 2021-11-04 2021-11-04 Power transmission line ground fault positioning device

Country Status (1)

Country Link
CN (1) CN216434326U (en)

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CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20220503

CF01 Termination of patent right due to non-payment of annual fee