The voltage at any bus is directly proportional to the voltage source's capacity (at the generator) and inversely proportional to the impedance of all the pathways between the source and the load. In complex electrical systems, the link between components can be just as critical as the gear itself. SEG secondary bus enclosures provide nonsegregated medium voltage phase bus connectivity between switchgear, transformers, utility metering cabinets, and other high voltage assemblies—ensuring. Bus voltage is the electrical potential measured on a shared conductor, or “bus,” that distributes power or signals between components in a system. Think of it as the voltage on the main highway that feeds electricity to everything connected to it. The term shows up in power grids, industrial motor. This paper presents techniques for the application of tertiary and secondary voltage control through the use of intelligent proportional integral derivative (PID) controllers and the wide area measurement system (WAMS) in the IEEE 39 bus system (New England system). The 2024 edition of the Common Service and Construction Standard drawings are now available on our website in PDF format. It's a crucial parameter for the reliable and efficient operation of the entire system.