Pienjänniteverkko

Pienjänniteverkko refers to the low-voltage electricity distribution network. In Finland, this typically signifies a voltage level of 230/400 volts between phase and neutral/ground and between phases respectively. This is the final stage of the electricity supply system, delivering power directly to homes, businesses, and other end-users. The pienjänniteverkko is supplied by the keskijänniteverkko (medium-voltage network) through distribution transformers. These transformers step down the higher voltage from the medium-voltage lines to the safe and usable low voltage levels.

The infrastructure of a pienjänniteverkko includes underground cables and overhead power lines, along with numerous smaller transformer substations. These substations are often located within communities or even on individual properties. The network is designed to efficiently distribute electricity over relatively short distances to a high density of consumers. Safety is a primary concern, and all components are subject to stringent regulations and regular maintenance to prevent faults and ensure reliable power delivery. Modern pienjänniteverkot are increasingly being integrated with smart grid technologies, allowing for better monitoring, control, and integration of renewable energy sources. This also facilitates more efficient fault detection and faster restoration of power.