CN209471183U - A kind of highly reliable pole tower ground resistance measuring device - Google Patents

A kind of highly reliable pole tower ground resistance measuring device Download PDF

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Publication number
CN209471183U
CN209471183U CN201920115058.9U CN201920115058U CN209471183U CN 209471183 U CN209471183 U CN 209471183U CN 201920115058 U CN201920115058 U CN 201920115058U CN 209471183 U CN209471183 U CN 209471183U
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China
Prior art keywords
resistance tester
earth resistance
measurement
temperature
aperture
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CN201920115058.9U
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Chinese (zh)
Inventor
李佳城
熊细涛
胡云兴
贾春明
杨超
闫卫斌
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Qujing Bureau of Extra High Voltage Power Transmission Co
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Qujing Bureau of Extra High Voltage Power Transmission Co
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Abstract

The utility model is suitable for ground resistance field of measuring technique, a kind of highly reliable pole tower ground resistance measuring device is provided, including earth resistance tester, two earthing poles and several conducting wires, the earth resistance tester is built-in with measurement plate, there are triggering key, liquid crystal display and four terminal interfaces on the front panel of the earth resistance tester, described device further includes temperature probe, aperture at least one on the earthing pole, the conducting wire connecting with earthing pole penetrates the aperture, is then screwed into aperture locking by T-bolt.The ground resistance data that measurement obtains and soil temperature data are sent wirelessly away the utility model, can get in time data from the background and be analyzed and corrected, and can quickly judge whether ground connection is reliable, increases Measurement reliability;Conducting wire and earthing pole connection type use T-bolt locking mode simultaneously, ensure that conducting wire connection reliability.

Description

A kind of highly reliable pole tower ground resistance measuring device
Technical field
The utility model belongs to ground resistance field of measuring technique more particularly to a kind of highly reliable pole tower ground resistance measurement Device.
Background technique
Ground protection is carried out to overhead power transmission line line pole tower, is the primary hand for ensureing transmission line equipment and being encroached on from thunder and lightning One of section.Currently, whether power construction unit may be used mainly by the measurement to pole tower ground resistance with assessing protection system to earth By effective, therefore, the accurate measurement of ground resistance is of great significance safely to transmission facility.
Pole tower ground resistance detection measured at present using earth resistance tester, basic principle as shown in Fig. 1, There are four connecting terminals on tester, and wherein C1, C2 are the electric current pole connecting terminal of earth resistance tester, and P1, P2 are ground connection The voltage pole connecting terminal of resistance meter, P is voltage ground pole in figure, and C is current earthing pole, and G is that the ground connection of shaft tower fills It sets.Between P and G and the distance between C and P are at least 20 meters.As shown in Figure 1 after wiring, then according to three electrode method measuring rod Tower ground resistance, three electrode method are current general measuring methods, and specific measurement process does not repeat here.Earth resistance at present There are the following problems for instrument:
1, temperature data when current earth resistance tester does not record measurement, but ground resistance can be by environment temperature It influences, the contact resistance that different time sections measurement obtains has different, it should be modified data.
2, measurement data is stored in local by current earth resistance tester, is then taken back company and is recorded, this note Record mode is more time-consuming, is also not easy to follow-up data lookup.
3, earth resistance tester has even more piece-root grafting conducting wires, wherein the company of conducting wire and voltage ground pole and current earthing pole It is fairly simple to connect mode, directly conducting wire is wound on earthing pole, but this mode connects unstable, conducting wire and ground connection are easily de- It falls, and contact resistance is also bigger, so that measurement error is very big, reduces Measurement reliability.
Utility model content
In view of the above problems, the purpose of this utility model is to provide a kind of highly reliable pole tower ground resistance measuring device, Aim to solve the problem that the technical issues of existing earth resistance tester reliability is poor, data cannot be handled in time.
The utility model adopts the following technical solution:
The highly reliable pole tower ground resistance measuring device includes earth resistance tester, two earthing poles and several leads Line, the earth resistance tester are built-in with measurement plate, there is triggering key, liquid on the front panel of the earth resistance tester Crystalline substance screen and four terminal interfaces, described device further includes temperature probe, the measurement plate include measurement module and with the survey The wireless interface and temperature collecting module of module connection are measured, external antenna is installed on the shell of the earth resistance tester, The external antenna is connected to the wireless interface, and there are also temperature socket, institutes on the front panel of the earth resistance tester It states temperature socket and is connected to the temperature collecting module, the temperature probe is connected to the temperature socket by plug, described Aperture at least one on earthing pole, the conducting wire connecting with earthing pole penetrate the aperture, are then screwed into aperture by T-bolt Locking.
Further, the earth resistance tester inner lower point has mounting plate, has a pair of of fixed frame above mounting plate, It is fixed with lithium battery between the pair of fixed frame, power panel is provided on the mounting plate, the measurement plate is installed to described On mounting plate, the temperature socket, four terminal interfaces bottom be each attached on mounting plate, the earth resistance tester side Wall has power interface, and the power interface is connect with the power panel, and the power panel is connected to the measurement plate and lithium battery.
The beneficial effects of the utility model are: the utility model increases temperature on the basis of existing earth resistance tester Temperature probe and two earthing poles are directly inserted into soil by probe and wireless interface, external antenna, when use as required, Soil temperature data is obtained simultaneously in measurement tower bar ground resistance, the ground resistance data and soil moisture number that measurement is obtained Wireless mode is sent accordingly, can be got in time data from the background and be analyzed and corrected, and can quickly judge to be grounded It is whether reliable, increase Measurement reliability;Conducting wire and earthing pole connection type use T-bolt locking mode simultaneously, ensure that Conducting wire connection reliability avoids connection from loosening and generate biggish contact resistance, ensure that the reliability of measurement data.
Detailed description of the invention
Fig. 1 is the measurement method schematic diagram of existing three electrode method measurement pole tower ground resistance;
Fig. 2 is the structure chart of earth resistance tester provided by the embodiment of the utility model;
Fig. 3 is the schematic diagram of earth resistance tester provided by the embodiment of the utility model;
Fig. 4 is the structure chart of earthing pole provided by the embodiment of the utility model;
Fig. 5 is the internal structure chart of earth resistance tester provided by the embodiment of the utility model.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used to explain The utility model is not used to limit the utility model.
In order to illustrate technical solution described in the utility model, the following is a description of specific embodiments.
As shown in Figure 2-5, highly reliable pole tower ground resistance measuring device provided in this embodiment includes earth resistance 1, two earthing pole 2 of instrument and several conducting wires, the earth resistance tester 1 are built-in with measurement plate 3, the earth resistance Having triggering key 11, liquid crystal display 12 and four terminal interfaces 13, described device on the front panel of instrument 1 further includes temperature probe 4, The measurement plate 3 includes measurement module 31 and the wireless interface 32 and temperature collecting module that connect with the measurement module 31 33, external antenna 34 is installed, the external antenna 34, which is connected to, described wirelessly to be connect on the shell of the earth resistance tester Mouthfuls 32, there are also temperature socket 35 on the front panel of the earth resistance tester, the temperature socket 35 is connected to the temperature Acquisition module 33 is spent, the temperature probe 4 is connected to the temperature socket 35 by plug, at least one on the earthing pole 2 Locate aperture 21, the conducting wire connecting with earthing pole penetrates the aperture, is then screwed into the locking of aperture 21 by T-bolt 22.
The utility model increases temperature probe and wireless interface, external day on the basis of existing earth resistance tester Line.Directly temperature probe and two earthing poles are inserted into soil as required when use, the two ground connection extremely voltages connect Earth polar and current earthing connect, insertion soil locations and direction with it is existing consistent, do not repeat here.It is same in measurement tower bar ground resistance When obtain soil temperature data, the obtained ground resistance data of measurement and soil temperature data are sent wirelessly out It goes, data can be got in time from the background and is analyzed and corrected, can quickly judge whether ground connection is reliable, increases measurement Reliability;Conducting wire and earthing pole connection type use T-bolt locking mode simultaneously, ensure that conducting wire connection reliability, avoid Connection loosens and generates biggish contact resistance, ensure that the reliability of measurement data.
The present embodiment device uses lithium battery power supply mode, specifically, the earth resistance tester inner lower point has Mounting plate 5 has a pair of of fixed frame 51 above mounting plate 5, lithium battery 52, the installation is fixed between the pair of fixed frame 51 Power panel 6 is provided on plate, the measurement plate 3 is installed to the mounting plate 5,35, four terminal interfaces of the temperature socket 13 bottom is each attached on mounting plate 5, and the earth resistance tester side wall has power interface 7, the power interface 7 and institute The connection of power panel 6 is stated, the power panel 6 is connected to the measurement plate 3 and lithium battery 52.It is filled by power interface to lithium battery Electricity, when work, lithium battery gives measurement plate power supply by power panel, completes measurement work.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this Made any modifications, equivalent replacements, and improvements etc., should be included in the utility model within the spirit and principle of utility model Protection scope within.

Claims (2)

1. a kind of highly reliable pole tower ground resistance measuring device, including earth resistance tester, two earthing poles and several lead Line, the earth resistance tester are built-in with measurement plate, there is triggering key, liquid on the front panel of the earth resistance tester Crystalline substance screen and four terminal interfaces, which is characterized in that described device further includes temperature probe, the measurement plate include measurement module with And the wireless interface and temperature collecting module being connect with the measurement module, it is equipped on the shell of the earth resistance tester External antenna, the external antenna are connected to the wireless interface, and there are also temperature on the front panel of the earth resistance tester Socket is spent, the temperature socket is connected to the temperature collecting module, and the temperature probe is connected to the temperature by plug Socket, at least one on the earthing pole at aperture, the conducting wire connecting with earthing pole penetrates the aperture, then passes through T-type spiral shell Bolt is screwed into aperture locking.
2. highly reliable pole tower ground resistance measuring device as described in claim 1, which is characterized in that the earth resistance tester Inner lower point has mounting plate, has a pair of of fixed frame above mounting plate, lithium battery is fixed between the pair of fixed frame, described Power panel is provided on mounting plate, the measurement plate is installed to the mounting plate, the temperature socket, four terminal interfaces Bottom is each attached on mounting plate, and the earth resistance tester side wall has power interface, the power interface and the power supply Plate connection, the power panel are connected to the measurement plate and lithium battery.
CN201920115058.9U 2019-01-23 2019-01-23 A kind of highly reliable pole tower ground resistance measuring device Active CN209471183U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201920115058.9U CN209471183U (en) 2019-01-23 2019-01-23 A kind of highly reliable pole tower ground resistance measuring device

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Application Number Priority Date Filing Date Title
CN201920115058.9U CN209471183U (en) 2019-01-23 2019-01-23 A kind of highly reliable pole tower ground resistance measuring device

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CN209471183U true CN209471183U (en) 2019-10-08

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112269062A (en) * 2020-09-14 2021-01-26 中国南方电网有限责任公司超高压输电公司广州局 Valve section module element impedance tester
CN114167141A (en) * 2021-11-24 2022-03-11 中国南方电网有限责任公司超高压输电公司曲靖局 Transmission tower grounding resistance on-line monitoring system based on non-contact measurement method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112269062A (en) * 2020-09-14 2021-01-26 中国南方电网有限责任公司超高压输电公司广州局 Valve section module element impedance tester
CN114167141A (en) * 2021-11-24 2022-03-11 中国南方电网有限责任公司超高压输电公司曲靖局 Transmission tower grounding resistance on-line monitoring system based on non-contact measurement method

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