keskijänniteasemat

Keskijänniteasemat, also known as medium voltage substations, are crucial components of electrical power distribution networks. They serve as the intermediate step between high voltage transmission lines and the lower voltage distribution lines that supply electricity to homes and businesses. The primary function of a keskijänniteasema is to reduce the voltage from the transmission level to a medium voltage, typically ranging from 10 kilovolts (kV) to 36 kV, depending on the specific network design and regional standards.

These substations house essential equipment such as transformers, circuit breakers, disconnect switches, and protection relays. Transformers are the core component, stepping down the voltage to the required medium level. Circuit breakers and disconnect switches are used for controlling and isolating parts of the network for maintenance or in case of faults. Protection relays monitor the system and trigger circuit breakers to prevent damage to equipment and ensure the safety of the distribution network.

Keskijänniteasemat are strategically located throughout the distribution area to efficiently supply power to various zones. Their design and capacity are determined by the load requirements of the area they serve. Regular maintenance and monitoring are vital to ensure their reliable operation and to prevent power outages. The safe and efficient functioning of keskijänniteasemat is fundamental to the stability and reliability of the entire electricity supply system.