Factory Acceptance Testing (FAT) and Site Acceptance Testing (SAT) are essential milestones in medium-voltage power system deployment. FAT ensures all components—such as switchgear, protection relays, and panels—are tested before they leave the factory. SAT confirms their functionality in the field after installation.
Preparation is key. Our project engineers at OXCART recommend starting with clear testing criteria, device configuration backups, and verification checklists aligned with the client’s specification and local grid code.
This guide covers real-world examples of FAT/SAT protocols, including insulation resistance testing, relay function injection tests, breaker timing, and visual inspection standards. Proper FAT/SAT reduces commissioning time and provides a documented baseline for future maintenance.
