Keskijännitteisten

Keskijännitteisten is a Finnish term referring to medium-voltage electrical power distribution systems. These systems operate at voltages typically ranging from 1 kilovolt (kV) to 35 kV, serving as an intermediate stage between the high-voltage transmission network and the low-voltage distribution network that supplies electricity to end-users. Medium voltage is used to transport electricity efficiently over moderate distances, such as within urban areas, industrial parks, or between substations and local distribution points.

The infrastructure for medium-voltage systems includes overhead lines and underground cables, supported by poles or laid beneath the ground. Substations play a crucial role, stepping down the high voltage from transmission lines to the medium voltage range for distribution. Conversely, other substations or distribution points will further reduce the medium voltage to the low voltage required for residential and commercial use. Safety and reliability are paramount in the design and operation of these systems, employing protective devices like circuit breakers and fuses to manage faults and prevent damage. The efficient management of the medium-voltage network is essential for ensuring a stable and continuous electricity supply to a wide range of consumers.