Unlock instant, AI-driven research and patent intelligence for your innovation.

Method and device for determining grounding device of transmission line tower

A technology for grounding devices and transmission lines, applied in the direction of testing dielectric strength, connecting contact materials, etc., can solve problems such as easy exceeding the standard, line tripping, grounding resistance exceeding the standard, etc., to improve the effect of reducing resistance and avoiding the effect of line tripping

Inactive Publication Date: 2015-07-29
宗伟
View PDF1 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The main purpose of the present invention is to provide a method and device for determining the grounding device of the transmission line tower, so as to solve the problem that the grounding device in the prior art has poor resistance reduction effect in actual use, easily exceeds the standard, and lightning strikes back due to the grounding resistance exceeding the standard. Problems that cause the line to trip

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method and device for determining grounding device of transmission line tower
  • Method and device for determining grounding device of transmission line tower
  • Method and device for determining grounding device of transmission line tower

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Embodiment 1 of the present invention provides a method for determining the grounding device of a power transmission line tower, see figure 1 , the method may include the following steps:

[0029] Step S102: Obtain the construction parameters of the tower foundation of the transmission line tower.

[0030] Among them, the construction parameters of the tower foundation of the transmission line include the size of the tower foundation and the conductor material. For example, a tower foundation is a SZ1C6 square ring-shaped concrete structure, which is divided into three steps. The size of the uppermost step is 0.8m×0.8m×2m. The dimensions of the second to third steps are 1.4m×1.4m×0.5m and 2.4m×2.4m×0.3m respectively. The total height of the tower base is 2.8m, with 0.2m exposed to the ground. Conductor material is reinforced concrete.

[0031] Step S104: Obtain device parameters of the grounding device.

[0032] Wherein, the device parameters of the grounding device...

Embodiment 2

[0043] On the basis of Embodiment 1, Embodiment 2 of the present invention provides a preferred embodiment. The method for determining the grounding device of the transmission line tower in this embodiment is based on CDEGS software, and the building parameters of the tower base, the device of the grounding device The parameters and soil parameters at the location of the transmission line tower are input into the CDEGS software to calculate the power frequency resistance of the grounding device in the soil at the location of the transmission line tower.

[0044] Specifically, the following steps are included:

[0045] Step 1: Collect data, including soil parameters at the location of the transmission line tower, that is, topographic parameters, soil quality, soil stratification, soil layer thickness parameters, resistivity of each soil layer, whether there is an underground river, etc.;

[0046] Step 2: In the MALZ module of the CDEGS software, use the SESCAD tool to draw the ...

Embodiment 3

[0072] Corresponding to the method for determining the grounding device of the transmission line tower provided by the first embodiment of the present invention, the embodiment of the present invention also provides a device for determining the grounding device of the transmission line tower, see Figure 5 , the device may include a first acquisition module 10 , a second acquisition module 30 , a third acquisition module 50 , a calculation module 70 and a determination module 90 .

[0073] Wherein, the first acquisition module 10 is used to acquire the building parameters of the tower base of the transmission line tower; the second acquisition module 30 is used to acquire the device parameters of the grounding device; the third acquisition module 50 is used to acquire the soil parameters of the transmission line tower location The calculation module 70 is used to calculate the power frequency resistance of the grounding device in the soil at the position of the transmission lin...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a method and a device for determining a grounding device of a transmission line tower. The method includes: acquiring construction parameters of a tower footing of the transmission line tower; acquiring device parameters of the grounding device; acquiring soil parameters of the location of the transmission line tower; calculating power frequency resistance of the grounding device in the soil of the location of the transmission line tower according to the construction parameters of the tower footing, the device parameters of the grounding device and the soil parameters of the location of the transmission line tower; if the power frequency resistance meets preset conditions, determining that the grounding device is a grounding device suitable for the transmission line tower. By the method and device, accuracy in calculation of grounding resistance can be improved, so that the grounding device with the best resistance reduction effect can be determined.

Description

technical field [0001] The invention relates to the technical field of high-voltage electric power system, in particular to a method and a device for determining a grounding device of a power transmission line tower. Background technique [0002] In the operation of transmission lines, the proportion of accidents caused by lightning damage is often relatively high. In areas where lightning occurs frequently in our country, the tripping of high-voltage transmission lines caused by lightning strikes accounts for about 40%-70% of the total tripping times. However, in areas with complex terrain and high soil resistivity where towers are located, the accident rate of transmission lines caused by lightning strikes on towers is higher. When lightning strikes the transmission line, a high lightning overvoltage will be generated, which will cause damage to the line insulation or equipment, and further cause tripping and accidents, which will threaten the safety of people's lives and...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): H01R4/66G01R31/12
Inventor 宗伟吴显舟姜复亮张吉林齐祥和
Owner 宗伟