A Healthy Phase Selector is an electrical device used to ensure the continuous and safe supply of power by automatically selecting the healthiest or most stable phase among multiple incoming AC power phases. It monitors voltage levels and phase conditions, detecting faults like phase loss, imbalance, or low voltage in any phase.
When an unhealthy phase is detected, the selector switches the load to a healthier phase to prevent equipment damage and maintain uninterrupted operation. Commonly used in three-phase power systems, industries, and critical facilities, healthy phase selectors enhance electrical system reliability, protect sensitive equipment, and reduce downtime caused by power issues.