Keskijänniteisiin

Keskijänniteisiin refers to medium voltage levels commonly used in electrical power distribution systems. These voltage ranges typically fall between low voltage (typically below 1000 volts) and high voltage (used for long-distance transmission). In many countries, medium voltage is considered to be in the range of 1 kilovolt (kV) to 35 kV, although specific classifications can vary by region and application.

Medium voltage is the backbone of local power grids, connecting substations to distribution networks that serve residential, commercial, and industrial customers. It allows for efficient transmission of electricity over moderate distances without the excessive energy losses associated with low voltage, and without the complex infrastructure and safety concerns of high voltage.

Common medium voltage levels include 11 kV, 20 kV, and 33 kV. These voltages are stepped down by local transformers, often located on utility poles or in pad-mounted enclosures, to the lower voltages required by end-users, such as 230/400 volts in many residential areas. The infrastructure for medium voltage includes overhead power lines, underground cables, switchgear, and transformers. Maintaining the integrity and reliability of these medium voltage systems is crucial for ensuring a continuous and stable electricity supply.