Selection of the number and place of installation of sectioning points on the criterion of reliability of power supply

One of the effective methods of increasing the reliability of power supply in 0.4 kV networks is the use of partitioning points (SP). To date, there is no single method of selecting the number and places of installation of the joint venture. The main criteria of choice installation locations of SP in electric networks 0.4 kV are the criterion of sensitivity of the protective devices installed in the network to the SP, and the criterion of reliability of power supply of consumers connected to transmission lines (LEP), which sets SP. To determine the installation location of SP in the transmission line determine the reliability parameters of transmission line sections to SP, for SP and all along the line, plan the places to install the SP with the criterion of sensitivity of the protective devices for the data points define the effect of the partition using the combined effect from reducing the time to restore power supply to consumers and reduce the time of planned maintenance and repair of transmission lines. At the specified effect, considering investments in the implementation of partitioning and considering the maintenance costs for SP determine the rationality of installation of SP in some point of the transmission line. The article presents a method of selecting the number and places of installation of SP in power lines 0.4 kV, also taking into account the sensitivity criterion of protective devices installed in power lines.