What is swing bus-bar?

A swing bus-bar, often referred to as a swing bus, is a component in electrical power systems that helps maintain the stability of the network by balancing power flow. It acts as a reference point for voltage and frequency, allowing for the adjustment of loads and generation in response to fluctuations in demand. In a power grid, the swing bus is typically used to manage the supply from generators and ensure that the system operates within safe limits. Its primary function is to provide a flexible point for managing power distribution and enhancing system reliability.