Sähkönjakelujärjestelmän

Sähkönjakeluverkko, often referred to as a distribution network, is the part of the electricity transmission system that delivers electricity from the high-voltage transmission lines to individual consumers. This network typically operates at lower voltages than the transmission system and is characterized by a complex web of overhead lines, underground cables, substations, and transformers.

The primary function of a sähkönjakeluverkko is to efficiently and reliably supply electricity to homes, businesses, and industries. It achieves this by stepping down the voltage from the high-voltage transmission lines to usable levels. Substations play a crucial role in this process, housing transformers that reduce the voltage. From these substations, electricity flows through a network of distribution feeders, which are often organized in a radial or loop configuration.

Overhead lines are a common sight in many areas, supported by poles, while underground cables are increasingly used in urban environments to improve aesthetics and reduce susceptibility to weather-related damage. The network is designed with redundancy and protective devices to isolate faults and minimize power outages, ensuring a continuous and stable supply of electricity. Maintenance and upgrades of the sähkönjakeluverkko are ongoing processes to accommodate growing demand, integrate renewable energy sources, and enhance overall system resilience. Modernization efforts often include smart grid technologies that enable better monitoring, control, and management of electricity flow.