CN213903757U

CN213903757U - Portable line-disconnection-free measuring device for ground resistance of power transmission line

Info

Publication number: CN213903757U
Application number: CN202023070989.3U
Authority: CN
Inventors: 曾鑫; 曾玮; 张桐源; 陈壮松; 吴子桂
Original assignee: State Grid Jiangxi Electric Power Co ltd Ji'an Power Supply Branch; State Grid Corp of China SGCC
Current assignee: State Grid Jiangxi Electric Power Co ltd Ji'an Power Supply Branch; State Grid Corp of China SGCC
Priority date: 2020-12-18
Filing date: 2020-12-18
Publication date: 2021-08-06
Anticipated expiration: 2030-12-18

Abstract

The utility model discloses a portable line-loosening-free measuring device for transmission line ground resistance, which comprises a box body, wherein the upper end of the box body is provided with a box cover, one side of the box cover is connected with a hinge, the box cover is movably connected to the box body through the hinge, one side of the box cover opposite to the hinge is provided with a buckle plate, the upper end of the buckle plate is provided with the hinge, the buckle plate is movably connected to the box cover through the hinge, the central position of one side of the box body, which is the same as the buckle plate, is provided with a groove, a grab handle is arranged in the groove, the grab handle is in a U-shaped three-dimensional structure, the two ends of the U-shaped opening of the grab handle are all inserted with connecting rods, the connecting rods are inserted into the inner side of the groove, and the grab handle is movably connected to the box body through the connecting rods, the portable wire disconnection-free measuring device for the ground resistance of the power transmission line is convenient to carry and free of wire disconnection when used for measuring the ground resistance of the power transmission line by arranging the box body, the grab handle, the collecting device and the output power supply.

Description

Portable line-disconnection-free measuring device for ground resistance of power transmission line

Technical Field

The utility model relates to a measuring equipment technical field specifically is a portable line measuring device that exempts from to separate of transmission line ground resistance.

Background

In recent years, lightning trip-out is always the first of various faults, lightning disasters become important factors influencing the safe operation of a power transmission line, and after a line is in a lightning strike, an invasion wave transmitted into a transformer substation along the power transmission line threatens electrical equipment in the transformer substation, which is often the main factor causing transformer substation accidents, particularly, distribution transformer equipment accident rate caused in areas with strong lightning activity, high soil resistivity and complex terrain is higher, and huge economic loss is caused. The grounding device is a basic measure for improving the lightning resistance level of overhead transmission lines and distribution transformer equipment, and the size of the grounding resistance is a necessary means for checking whether the grounding device meets the regulation requirements. In the operation of the transmission tower, it is particularly important to periodically check and measure whether the grounding resistance of the transmission tower is qualified, and accurate measurement of the grounding resistance can ensure normal work of a grounding system, timely find the defects of the grounding system and avoid economic loss or accidents possibly caused by unqualified grounding systems. Therefore, a portable wire-disconnection-free measuring device for the ground resistance of the power transmission line is very needed in the ground resistance of the power transmission line, but the existing ground resistance measuring device for the power transmission line has some defects.

The prior art has the following defects or problems:

1. when the existing transmission line ground resistance measuring device is used, the existing transmission line ground resistance measuring device is inconvenient to carry due to the fact that the size of the device is large when the existing transmission line ground resistance measuring device is generally used, so that detection is troublesome and inconvenient;

2. when the existing transmission line ground resistance measuring device is used, the existing transmission line ground resistance measuring device generally has the advantage of high accuracy by adopting a tripolar method during measurement, the method needs to untie a grounding down-lead, the measurement is inconvenient, the engineering quantity is large, the measurement time is delayed, the final detection progress is influenced, and the method is not practical.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to prior art's weak point, provide a portable line measuring device that exempts from of transmission line ground resistance, make a portable line measuring device that exempts from of transmission line ground resistance greatly carry inconvenience and measure the problem that need separate the line waste time when can solving current transmission line ground resistance measuring device and use.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a portable line measuring device that exempts from to separate of transmission line ground resistance, includes the box, the box upper end is equipped with the case lid, case lid one side is connected with the hinge, the case lid passes through hinge swing joint to the box, the case lid is equipped with the buckle with the relative one side of hinge, the buckle upper end is equipped with the hinge, the buckle passes through hinge swing joint to the case lid, the box is equipped with the recess with the same one side central point of buckle, the inside grab handle that is equipped with of recess, the grab handle is U type spatial structure, the connecting rod has all been pegged graft at grab handle U type open-ended both ends, the connecting rod is pegged graft to the recess inboard, the grab handle passes through connecting rod swing joint to the box.

As the utility model discloses a preferred technical scheme, the inside cavity that is equipped with of case lid, box upper end inboard is equipped with the grafting ring, the case lid is pegged graft the box upper end through the grafting ring.

As the utility model discloses an optimized technical scheme, the inboard fixedly connected with buckle of buckle lower extreme, the buckle can be dismantled through the buckle and be connected to the box upper end.

As the utility model discloses a preferred technical scheme, the inside one side of box is equipped with collection system, the collection system upper end is equipped with the spliced eye, spliced eye upper end fixedly connected with interface, the spliced eye is total four with the interface.

As the utility model discloses an optimized technical scheme, one side upper end that collection system kept away from the box inboard is equipped with digital sensor, the digital sensor lower extreme is equipped with output power, the digital sensor upper end is equipped with the display screen.

As the utility model discloses an optimized technical scheme, one side that collection system was kept away from to digital sensor is equipped with fast Fourier transform device, fast Fourier transform device upper end is equipped with the operation button.

As the preferred technical scheme of the utility model, digital sensor, fast fourier transform device, collection system all are connected to output power.

Compared with the prior art, the utility model provides a portable line measuring device that exempts from to separate of transmission line ground resistance possesses following beneficial effect:

1. according to the portable wire-disconnection-free measuring device for the ground resistance of the power transmission line, the box body and the box cover can be directly lifted by hands through the grab handle when the portable wire-disconnection-free measuring device for the ground resistance of the power transmission line is used, the box cover can be opened through the pinch plate when measurement is needed, the situation that measurement is influenced due to carrying inconvenience is avoided, and the portable wire-disconnection-free measuring device for the ground resistance of the power transmission line is very practical;

2. this portable line measuring device that exempts from to separate of transmission line ground resistance, through setting up digital sensor and collection system and output power and fast Fourier transform device, make this portable line measuring device that exempts from to separate of transmission line ground resistance can be through adopting the high accuracy when using, the high resolution, high reliability digital sensor data promotes the detection precision, collection system adopts multilayer shielding, anti-interference, anti thunderbolt technique, ensure that detection device measured data is true and reliable, adopt a programmable structure to realize the accurate output power supply of multiple voltage and guarantee the power supply temperature, utilize fast Fourier transform device to carry out specific filtering algorithm with measured data, realize measured data's high accuracy output, make measuring device need not to separate the line when using, accelerate detection speed and quick acquisition detection report, and is very convenient.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

fig. 2 is a schematic view of the vertical structure of the present invention;

FIG. 3 is a schematic side view of the present invention;

fig. 4 is a schematic view of the side-view perspective structure of the present invention.

In the figure: 1. a box cover; 2. a hinge; 3. buckling the plate; 4. a handle; 5. a box body; 6. a connecting rod; 7. a groove; 8. a cavity; 9. a display screen; 10. an interface; 11. inserting holes; 12. buckling; 13. a plug-in ring; 14. a digital sensor; 15. operating a key; 16. a collection device; 17. a fast Fourier transform device; 18. and outputting the power supply.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, 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.

Referring to fig. 1-4, in this embodiment: the utility model provides a portable line measuring device that exempts from to separate of transmission line ground resistance, the power distribution box comprises a

box body

5, 5 upper ends of box are equipped with case lid 1, 1 one side of case lid is connected with hinge 2, case lid 1 is through hinge 2 swing joint to box 5, one side that case lid 1 is relative with hinge 2 is equipped with

buckle

3, 3 upper ends of buckle are equipped with hinge 2, buckle 3 is through hinge 2 swing joint to case lid 1, box 5 is equipped with recess 7 with 3 the same one side central point of buckle position, the inside grab handle 4 that is equipped with of recess 7, grab handle 4 is U type spatial structure, the both ends of 4U type openings of grab handle are all pegged graft and are had connecting rod 6, connecting rod 6 pegs graft to recess 7 inboardly, grab handle 4 passes through connecting rod 6 swing joint to box 5.

In the embodiment, a cavity 8 is arranged inside a case cover 1, an inserting ring 13 is arranged on the inner side of the upper end of a case body 5, the case cover 1 is inserted into the upper end of the case body 5 through the inserting ring 13, the sealing performance of the case body 5 is ensured through the inserting ring 13, a buckle 12 is fixedly connected to the inner side of the lower end of a buckle plate 3, the buckle plate 3 is detachably connected to the upper end of the case body 5 through the buckle 12, the buckle plate 3 is connected with the case body 5 through the buckle 12, an acquisition device 16 is arranged on one side inside the case body 5, an inserting hole 11 is arranged on the upper end of the acquisition device 16, an interface 10 is fixedly connected to the upper end of the inserting hole 11, the inserting hole 11 and the interface 10 are four in total, measurement data are acquired through the acquisition device 16 and the interface 10, a digital sensor 14 is arranged on the upper end of one side of the acquisition device 16 far away from the inner side of the case body 5, an output power supply 18 is arranged at the lower end of the digital sensor 14, a display screen 9 is arranged on the upper end of the digital sensor 14, the acquired data are displayed on the display screen 9 through the digital sensor 14, one side that digital sensor 14 kept away from collection system 16 is equipped with fast Fourier transform device 17, and fast Fourier transform device 17 upper end is equipped with operation button 15, converts the form of measurement data into the report through fast Fourier transform device 17, controls the equipment in box 5 through operation button 15, and digital sensor 14, fast Fourier transform device 17, collection system 16 all are connected to output power supply 18, carry out the power supply through output power supply 18 to the equipment in the box 5.

The utility model discloses a theory of operation and use flow: at first carry this portable line measuring device that exempts from of transmission line ground resistance to wait to detect transmission line ground resistance region through portable grab handle 4 with box 5, open case lid 1 through buckle 3, open digital sensor 14's display screen 9, then measure the transmission system shaft tower transmission line ground resistance of volume of awaiting measuring through collection system 16, carry out the electric power supply through output power 18 to the equipment in box 5, measured data will show on display screen 9 with the form of report after the quick Fourier transform device 17 conversion, and is very convenient and practical.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a portable line measuring device that exempts from of transmission line ground resistance which characterized in that: comprises a box body (5), a box cover (1) is arranged at the upper end of the box body (5), one side of the box cover (1) is connected with a hinge (2), the box cover (1) is movably connected to the box body (5) through the hinge (2), a buckle plate (3) is arranged on one side of the box cover (1) opposite to the hinge (2), the upper end of the buckle plate (3) is provided with a hinge (2), the buckle plate (3) is movably connected to the box cover (1) through the hinge (2), a groove (7) is arranged at the center position of the same side of the box body (5) and the pinch plate (3), a grab handle (4) is arranged in the groove (7), the grab handle (4) is in a U-shaped three-dimensional structure, two ends of the U-shaped opening of the grab handle (4) are respectively inserted with a connecting rod (6), the connecting rod (6) is inserted into the inner side of the groove (7), and the grab handle (4) is movably connected to the box body (5) through the connecting rod (6).

2. The portable wire-disconnection-free measuring device for the ground resistance of the power transmission line according to claim 1, characterized in that: the box cover is characterized in that a cavity (8) is formed in the box cover (1), an inserting ring (13) is arranged on the inner side of the upper end of the box body (5), and the box cover (1) is inserted into the upper end of the box body (5) through the inserting ring (13).

3. The portable wire-disconnection-free measuring device for the ground resistance of the power transmission line according to claim 1, characterized in that: the buckle plate is characterized in that a buckle (12) is fixedly connected to the inner side of the lower end of the buckle plate (3), and the buckle plate (3) is detachably connected to the upper end of the box body (5) through the buckle (12).

4. The portable wire-disconnection-free measuring device for the ground resistance of the power transmission line according to claim 1, characterized in that: the box body (5) is characterized in that one side inside the box body (5) is provided with a collection device (16), the upper end of the collection device (16) is provided with an insertion hole (11), the upper end of the insertion hole (11) is fixedly connected with a connector (10), and the number of the insertion holes (11) and the number of the connectors (10) are four.

5. The portable wire-disconnection-free measuring device for the ground resistance of the power transmission line according to claim 4, characterized in that: the upper end of one side, far away from the inner side of the box body (5), of the acquisition device (16) is provided with a digital sensor (14), the lower end of the digital sensor (14) is provided with an output power supply (18), and the upper end of the digital sensor (14) is provided with a display screen (9).

6. The portable wire-disconnection-free measuring device for the ground resistance of the power transmission line according to claim 5, characterized in that: one side of the digital sensor (14) far away from the acquisition device (16) is provided with a fast Fourier transform device (17), and the upper end of the fast Fourier transform device (17) is provided with an operation key (15).

7. The portable wire-disconnection-free measuring device for the ground resistance of the power transmission line according to claim 5, characterized in that: the digital sensor (14), the fast Fourier transform device (17) and the acquisition device (16) are all connected to an output power supply (18).