The application of DSP technique in the field of relay protection

This paper presents a relay protection device, which is based on the DSP technique. Because of high-speed and high performance of the DSP processor, the complicated filter and analysis algorithm can be introduced and the peripheral circuit can be simplified greatly. Furthermore, it is provided with many excellent characteristics such as high-precision monitor, high-speed action, smaller size and good ability of anti-jamming. Abundant chip resources provide the system with the capability of relay protection network oriented secondary development.