Developed robust reactive power scaling control for the powsybl-core repository, focusing on the LoadScalable component. Introduced configurable minimum and maximum Q parameters to precisely bound reactive power scaling, enhancing grid stability and reducing deployment risks. The work involved a comprehensive refactor of the scaling logic in Java to improve clarity, maintainability, and performance. Extensive parametrized unit tests were implemented to ensure correctness across a wide range of edge cases and parameter combinations. Comprehensive logging was added for scaling-limit events, and documentation was updated to support onboarding and maintainability. All changes adhered to strict checkstyle compliance and software design best practices.