Study On The Characteristics Test Technology And Equipment Of Residual Current Device

Electricity and the citizens'daily life are inseparable in modern time.With the rapid growth of electricity consumption, especially the power grids in rural, the requirements for safe use of electricity higher and higher,in another way requirements on the intelligence level of power is also increasing. Leakage is an important equipment and widely used in low-voltage AC power distribution network to ensure the safety of electricity.In recent years,it has been Popular at home and also the Promotion.In most of the previous leakage protection is an artificial management.When the transmission line failure, leakage protection for power failure protection, the staff maybe keep abreast of line fault, the fault processing delayed, thus affecting the continuity of supply, to people's production and living with a lot of inconvenience.In recent years, wireless transmission technology for its features of flexible, easy installation, and other characteristics that span wide geographical areas in the industrial and agricultural production is more and more widely.In my paper I analyze a variety of wireless transmission technology at home and abroad application and development status firstly, network based on GSM short message services in wireless remote monitoring system for leakage protection can be managed remotely.Paper elaborated on the remote management system leakage protection basic principle, involved in the design and implementation of the SOC C8051F020 microcontroller to control the core leakage protection wireless remote management system.The main parts of the system are: microcontroller control unit, the line alarm information transmission part, timing module, display module and keyboard module. System leakage protection for multiple real-time monitoring;the information of line fault is sent to the manager through the wireless transmission of short message services in the GSM network;timing unit can accurately record the time line fault occurs;display unit displays the message Operation and the target phone number, etc.Set the keyboard module provides services to change the target mobile phone number.The system hardware design and software design are based on the modular approach to achieve. This method is easy to design, debug,to a certain extent,can simplify programming. Error in the system, easy to analyze, find the problem source.This method can achieve good leakage protection wireless remote management system.