The Study of Current Sampling Module Based on Intelligent Tripping Device

This paper has proposed a current sampling module design scheme based on the intelligent tripping device, it first discusses the sampling principle and algorithm realization of electric parameters, then taking three-phase alternating current as sampling objects, establish an entity sampling system module based on MCU; From hardware and software these two aspects to research and analyze measures of power grid in normal and breakdown circumstances. Through analysis of measure error, come up with the methods of diminishing error and verify their feasibility.