Medelspänningsnätet

Medelspänningsnätet, often referred to as medelspänning in Swedish electrical terminology, represents a crucial tier in the distribution of electricity within a power grid. It functions as an intermediary between the high-voltage transmission network and the low-voltage distribution network that directly supplies end-users such as homes and businesses. Typically, medelspänningsnät operate at voltages ranging from around 1 kilovolt (kV) up to 36 kV, although specific ranges can vary by region and national standards.

The primary role of the medelspänningsnät is to efficiently transport electricity over moderate distances from substations, where voltage is stepped down from the transmission network, to local distribution points. From these local points, transformers further reduce the voltage to the levels required for final consumption. This network is characterized by its extensive reach across urban, suburban, and sometimes rural areas, serving a significant portion of the electricity distribution infrastructure.

Infrastructure for the medelspänningsnät commonly includes overhead lines supported by poles and underground cables. These lines are designed to handle higher power flows than low-voltage networks but are less complex and costly to maintain than the very high-voltage transmission lines. Reliability and stability are paramount for the medelspänningsnät, as disruptions can affect a substantial number of consumers. Grid operators continuously monitor and manage these networks to ensure a consistent and secure supply of electricity.