What is the voltage requirement for generators that necessitate a voltage schedule?

The voltage requirement for generators that necessitate a voltage schedule is set for those with a capacity greater than 20 MVA. This threshold reflects the operational and technical considerations that arise when integrating larger generators into the power grid. Generators above this size can have a significant impact on voltage stability and system reliability.

When generators exceed 20 MVA, they typically have more influence on the overall performance and behavior of the transmission system. Therefore, managing their output and voltage levels becomes crucial to maintain balance across the grid. The implementation of a voltage schedule establishes guidelines for these larger units to ensure consistent and stable voltage levels, thereby enhancing system reliability and reducing the risk of disturbances or outages.

Smaller generators, capable of outputting less than 20 MVA, typically do not require such stringent voltage scheduling as their aggregate impact on the grid is less significant. This distinction helps streamline operational processes while still promoting reliability within the electrical system.