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With the rapid development of the computer and power industries, microcomputer relay protection technology is moving towards artificial intelligence, network sharing, communication data integration, and computer integration. The relay protection device is actually a highly intelligent and multifunctional computer. As the terminal equipment of the power system network, it can transmit data from the network to the control center, and its practicality and intelligence are unparalleled. However, in order for themicrocomputer relay protection deviceto operate normally, corresponding anti-interference measures must be taken to improve its anti-interference ability. This article elaborates on the advantages and anti-interference measures of microcomputer relay protection.
Microcomputer relay protection technology is a power facility protection technology that combines computer technology and power technology. The microcomputer relay protection device is a computer protection device made of digital circuits composed of microprocessors, called microcomputer protection. In recent years, microcomputer relay protection devices have been widely used in the protection of various large-scale power facilities, especially in large substations. The microcomputer relay protection device can form a complete network system with the monitoring system, which enables large-scale power facilities to operate more safely. When faults occur, they can be detected in a timely manner, the cause of the fault can be accurately identified, and effective measures can be taken to quickly eliminate the fault, ensuring the normal operation of power facilities.
The core of microcomputer relay protection device is digital relay, which realizes the protection function. The protection function of relay protection devices is better, more reliable, with higher stability and stronger self detection ability than traditional devices such as transistors and integrated circuits. This is an inevitable result of the development of relay protection technology. The microcomputer based relay protection device is the terminal of the power system network. It is a highly intelligent computer that can obtain the required data from the network and transmit it to the control center. It can also form a complete network system with the monitoring system to timely and accurately transmit the operation status of power equipment to the monitoring center. Monitoring personnel can use it for remote control to achieve protection of power facilities.
Advantages of microcomputer relay protection
1. Simple structure. The structure of microcomputer relay protection device is relatively simple, with a small volume and no need for a large footprint; Lightweight and can be moved freely; Easy installation, requiring minimal manpower and installation time; Easy to operate, able to quickly grasp its operating principle. This is the result of the development of computers towards miniaturization and intelligence.
2. Complete variety. The variety of microcomputer relay protection devices is particularly complete. Choosing the appropriate relay protection device according to the different protection requirements of various power equipment in different types of substations can effectively improve the safety of power equipment operation.
3. Comprehensive functionality. The functions of microcomputer relay protection devices are very comprehensive, and they can independently complete data acquisition and processing; It also has communication function and can complete real-time communication of information; A comprehensive monitoring system can achieve remote monitoring of electrical equipment; When a fault occurs, the alarm function of the relay protection will be activated in a timely manner, utilizing its own repair function to effectively adjust and eliminate the fault.
4. Flexible application. The use of microcomputer relay protection devices is very flexible and convenient. By utilizing the characteristics of computers, it is only necessary to program the corresponding protection functions. When different protection functions are needed, flexible conversion can be achieved by simply inputting the corresponding instructions. When the protection function is activated, all instructions and actions run in the background without the need for manual control, making its application very flexible.
5. Reliable performance. The protection function of the microcomputer relay protection device is completely controlled by the program, avoiding subjective judgment errors caused by manual control, and can quickly adapt to the complex environment of the power system. It can provide necessary protection measures for the power system for a long time without faults, thus having very high reliability.
