Method and system for monitoring cable tunnel environment based on cable temperature measurement
A cable tunnel and temperature measurement technology, which is applied to the parts of thermometers, thermometers, and heat measurement, etc., can solve the problems of inability to effectively ensure the query of cable tunnels and consume a lot of manpower
Active Publication Date: 2014-07-23
CHONGQING UNIV
View PDF6 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
At present, most of the environmental monitoring in the cable tunnel in China still adopts the method of manual inspection, that is, the inspection workers detect point by point along the cable tunnel. The problem with this method is that it requires a lot of manpower, and it cannot effectively guarantee that each inspection Linemen scrupulously surveyed all cable tunnels
At present, there is no report on the research on the environmental monitoring system of cable tunnels in China. Many studies are carried out around the fault detection of cables and the monitoring of operating temperature of cables.
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 moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0049] Below in conjunction with accompanying drawing, technical scheme of the present invention is described further:
[0050] The principle of the cable tunnel environment monitoring method based on cable temperature measurement is: determine the number and location of the measurement points according to the length of the cable tunnel to be monitored, and determine the number of each measurement point according to the number of the power cable. Taking a cable tunnel with a length of 1800 meters as an example, assuming that the line number is 110kV Zhuyu East-West Line I, then the position and number of the temperature measurement points in the cable tunnel should be determined according to the following rules: first in the cable tunnel A measurement point is arranged at the midpoint of the cable. The number of the measurement point is ZYDX_I_M, and the numbering rule is the acronym of the line name + circuit number + position number. The M here represents the midpoint. Then...
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
| Property | Measurement | Unit |
|---|---|---|
| area | aaaaa | aaaaa |
| length | aaaaa | aaaaa |
Login to View More
Abstract
The invention relates to a method for monitoring the operating environment of a cable tunnel based on temperature monitoring, which is characterized in that: the steps include: 1) determining the temperature measurement point of the cable; 2) measuring the surface temperature of the cable during operation; 3) calculating the temperature of the inner conductor of the power cable ;4) Judgment of the environment of the cable tunnel; by comparing the theoretical temperature T1 with the measured temperature T0, if it is, it is considered that the environment in the cable tunnel corresponding to the temperature measurement point has changed, and it is necessary to arrange personnel to check. The invention also relates to a cable tunnel environment monitoring system based on cable temperature measurement, which is composed of a temperature measurement terminal and a data processing center.
Description
technical field [0001] The invention relates to the technical field of high-voltage power transmission and distribution, in particular to the technical field of urban power transmission and distribution. Background technique [0002] In recent years, with the rapid growth of my country's urban electricity capacity, 110kV transmission lines and 220kV transmission lines have become the main transmission lines in large cities in China. In order to improve the appearance of the city and reduce the area occupied by transmission lines, more and more underground power cables have been laid and operated in large cities in China. [0003] At present, the main laying method of some 10kV, 110kV and 220kV cables is the cable tunnel. Because the domestic cable tunnel construction and operation management are not standardized enough, the environment in the cable tunnel is often damaged, such as silt, water and accumulation in the cable tunnel. Sundries etc. When silt, water and debris a...
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
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): G01K11/32G01K1/02G01K1/024G01K11/3206
Inventor 杨帆程鹏高兵
Owner CHONGQING UNIV