Sekundärnetze

Sekundärnetze, also known as secondary networks or distribution networks, are an integral part of electrical power systems. They operate at lower voltage levels compared to primary transmission networks and are responsible for delivering electricity to end-users such as homes, businesses, and industries. These networks typically consist of a series of interconnected circuits that branch out from substations.

The primary function of a sekundärnetz is to reduce the high voltages received from the primary distribution network to safe and usable levels for consumers. This voltage transformation is achieved through step-down transformers, which are strategically placed throughout the network. The design of a sekundärnetz aims to ensure reliable and efficient power supply, minimizing voltage drops and power losses.

Various configurations exist for sekundärnetze, including radial, loop, and networked systems. Radial systems are the simplest, with power flowing outwards from a single source. Loop systems provide a degree of redundancy by allowing power to be supplied from two directions. Networked systems offer the highest reliability, with multiple interconnected feeders and transformers, ensuring that if one part of the network fails, power can still be supplied to consumers from alternate paths.

The operation and maintenance of sekundärnetze are crucial for the stability of the entire power grid. Fault detection, isolation, and restoration are key activities to quickly address any issues that may arise, such as short circuits or equipment failures. Modern sekundärnetze are increasingly incorporating smart grid technologies, enabling remote monitoring, control, and automated fault management to enhance efficiency and reliability.