Research on Microcomputer Measurement and Protection Device for Mid&Low-Voltage Transmission Line Based on Double CPU Platform;

On the basis of the highway central line curvature general model, the paper gives the general formula for the random point tangent azimuth angle computation, and the general mathematical model for the highway central line coordinate computation.

When high-voltage lines are parallel to or over-crossing pipelines,there should be a strong stray current in the pipelines,and as the distance of high-voltage line to pipelines becoms shorter,the stray current becomes stronger.

Combined with the practices related to rural grid reforming,the structure,installation,protection,operation and communication of reactive power compensator applied to high-voltage line are discussed,which can give a reference for device design and operation.