Keskijännitteet

Keskijännitteet, or medium voltage, refers to a range of electrical voltage levels typically used for power distribution. In many countries, this range falls between 1 kilovolt (kV) and 35 kV. Keskijännitteet serve as an intermediate step between the high voltages used for long-distance transmission and the lower voltages used for direct supply to end consumers.

The primary function of keskijännitteet is to efficiently transmit electricity from substations, where high voltage is reduced, to local distribution networks. This voltage level is a compromise, offering lower energy losses during transmission compared to low voltage, while still being manageable for insulation, switching, and safety requirements without the extreme complexity and cost associated with very high voltages.

Keskijännitteet are commonly found powering commercial buildings, industrial facilities, and residential areas in urban and suburban environments. The infrastructure supporting keskijännitteet includes distribution substations, overhead power lines, underground cables, and various protective devices like circuit breakers and fuses. These systems are crucial for reliable electricity delivery to a significant portion of the population and economic activity. The specific voltage levels within the keskijännitteet range can vary by region and application.