A Measure And Control System Of A Electrical Transformer District

An electrical transformer, transmission line on the side of low voltage and correlative users constitute the district of the electrical transformer. While the people's requirement for power supply quality and reliability is higher and higher, it is necessary to use advanced measurements to control the electrical transformer district. The existing devices can't meet the need of electrical industry operator so that a kind of novel measure and control system with better performance and reliability is designed in this paper.This device is composed of DSP microprocessor, high precision A/D converter and special interface chip. It can acquire data from six channels at real time. The humorous waves of the obtained signals are analyzed by using FFT, and with the information of the distribution of the humorous components, people can know the fault of the system and take corresponding measures, give the command to putting in or off the capacitor and compensate useless power and improve its power factor. This device can give us particular and explicit information through the characters, figures and Chinese characters displayed. It is high integration, small and light.The concerned formulae, the design of hardware and software and the key techniques are described in detail in this paper.