Specific Features of Relay Protection and Automatic Controls of a Power Line Laid along the Pipeline Route
The article presents acomprehensive analysis of existing relay protection and automatic control systems of 6(10) kV overhead power lines laid along the pipeline route, including the basic circuits of sectioning and 10/0.4 kV substations. A procedure for selecting current cut off protection stages for power line linear parts with a single-side power supply is presented, and the choice of current protection parameters for sectioning substations on the basis of modern reclosers is substantiated in a detailed manner. The principles for designing modern systems supplying power to consumers situated along the trunk gas transmission lineroute areconsidered. The specific feature spertinent to application of relay protection equipment and operation algorithms of power line automatic controls are presented.