Operation and online temperature detection of power cable lines

In modern life, electricity has become one of the most important energy sources. In order to meet the demand of the Chinese people for electricity use, China has built a basic nationwide electricity supply network. Power cables play an important role in the power supply network. During the operation of power cable lines, a certain temperature is generated, which in turn affects the overall stability of the power grid. In order to achieve the normal and stable operation of the power grid, it is necessary to effectively detect the operating temperature of power cable lines.

Operation and online temperature detection of power cable lines

The significance of online temperature detection in the operation of power cable lines

Power cable lines are an important foundation for achieving stable power supply and a key part of building a power supply network. If there is a problem with the power cable line, it usually affects the power supply in an area and has a very serious impact on people’s daily life. Therefore, the operation and maintenance of power cable lines has always been one of the focuses of people’s attention.

Analysis of Defects in Existing Temperature Online Detection Technologies

Firstly, the accuracy of existing temperature online detection technologies is relatively low. The purpose of implementing online temperature detection is not only to ensure the normal operation of the circuit, but also to improve the efficiency of problem-solving after discovering problems. This requires detection technology to accurately locate the fault location. However, existing technologies generally suffer from insufficient accuracy and cannot meet people’s needs. Some online temperature detection technologies have application limitations, especially some high-precision detection technologies. Due to the limitations of these technologies, it is usually impossible to achieve comprehensive detection of the circuit while ensuring high-precision problem positioning.

Classification of online temperature detection technology for power cable line operation

Fiber optic sensing detection technology

Fiber optic temperature sensing detection technology is currently one of the widely used technologies. The core of this technology is to use the post phase Raman scattering effect to achieve specific control over the temperature of power cables. In the application process, this technology utilizes optical fibers to achieve the effect of fusion with nano laser pulses, and achieves online temperature detection by detecting thermal vibration frequency.

Point temperature sensing technology

Point temperature sensing technology is a relatively simple technology to apply. This technology requires the installation of sensors at specific points in power cable lines, and then the use of specific lines for sensor information transmission. By analyzing and processing data from the control system, online temperature detection of the entire line can be achieved. The maturity of point temperature sensing technology is relatively high, and the requirements for technology are also relatively low. But it also has significant limitations.

Online detection technology for thermal effects

The online detection technology of thermal effects is also a widely used technology. This technology mainly utilizes infrared temperature measurement technology. During the operation of power cable lines, personnel can use infrared devices for temperature detection. By using the internal information processing system of the device, the temperature of power cable lines can be measured. This technology has high flexibility in application. Moreover, the use of infrared temperature measurement has received widespread attention as it can maintain flexibility while also maintaining accuracy.

Linear temperature online detection technology

Linear temperature online detection technology is a relatively new type of detection technology. The core of this technology lies in the internal structure of power cables. The cables used in this technology are made of special materials and can essentially be considered as a temperature sensor. During the application process, the cables of the measured circuit can be bundled together. If the temperature of the power cable is too high, it will directly cause a short circuit in the line and trigger an alarm.

Application of Online Temperature Detection Technology for Power Cable Line Operation

The application methods of temperature online detection technology do not conflict with each other. Therefore, in the process of application, attention should be paid to the comprehensive application of different technical methods. In large-scale testing activities, online detection technology for thermal effects should be considered first. This technology is fast and flexible, and can provide relatively accurate problem location information. Therefore, the application of this technology should receive special attention.

Other precautions for temperature online detection technology: Firstly, attention should be paid to the development of temperature online detection technology. To address the shortcomings of existing technologies, it is necessary to promote the development and application of new technologies in order to obtain an efficient and flexible temperature detection method. Secondly, attention should be paid to the development and application of temperature detection equipment. In the process of online temperature detection, a large number of technical equipment needs to be applied.

For example, infrared detection equipment, information processing equipment, and so on. The application of high-performance equipment can also effectively improve the accuracy of temperature detection, and has important application significance for overall maintenance work. Finally, attention should be paid to the training of staff. The application of new technologies and equipment will put forward new requirements for staff. In order to fully leverage the advantages of detection technology and the functionality of equipment, it is necessary to provide skill training for staff based on specific situations.

Power cable lines play an important role in modern production and life. In order to promote the future development of power cable lines, this article analyzes the application value and problems of temperature online detection technology in power cable lines, and studies the classification and application characteristics of temperature online detection technology. Meanwhile, this article explores the application methods and precautions of temperature online detection technology. These studies are very helpful for the maintenance and operation of power cables.