Abstract

Technical solutions aimed at improving the reliability of power supply to consumers of the 6-10 kV network are proposed, a block diagram of a fundamentally new device for diagnosing and protecting cells of 6-10 kV power cable lines with a single algorithm of operation is shown, which allows simultaneously performing current protection of the controlled feeder and monitoring with a predictive assessment (residual resource) of the state of the cable insulation material. A possible scheme of interaction of elements of an active-adaptive power unit of 6-10 kV is shown on the example of a cell of a 6-10 kV cable line. he device will allow you to control leakage currents in distribution networks, taking into account the remaining cable life, reduce insulation losses during power transmission and increase the energy efficiency of the controlled network by reducing power interruptions to the consumer. The quantitative values of the device will be determined after its introduction into trial operation.

Highlights

  • The development of the Russian electric power system is determined by a number of areas, including within the framework of the Concept of PJSC “Rosseti” "Digital Transformation 2030"

  • Reducing cross-links and functional impacts will simplify the setup of such devices, reduce the likelihood of personnel errors and increase the circuit and hardware reliability of the substation and the power supply of the network node, reduce the number of emergency shutdowns and wear of the main switching equipment, which will certainly affect energy efficiency and energy saving

  • The use of computational models will make it possible to clearly predict the new mode and quickly rebuild the network topology in the event of an emergency mode. This direction must meet the requirements of speed, reliability and simplicity of the analysis of the functioning algorithm for control by the operator at the initial stage of implementation in trial operation

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Summary

Introduction

The development of the Russian electric power system is determined by a number of areas, including within the framework of the Concept of PJSC “Rosseti” "Digital Transformation 2030". This concept provides for a number of programs to modernize individual areas of the electrical network and create a distributed automation system. It is envisaged to create dispatching points (DP) as an automation object, operational control and maintenance through the existing operational dispatch groups (ODG). Development must be carried out with minimal time, money and hardware connections

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