CYG SUNRI Substation Protection Comprehensive Automation Equipment Technical Transformation Solution aims to help customers quickly and safely complete the transformation of over-service protection comprehensive automation equipment. The solution adopts new standardized module interface technologies such as modular screen cabinets, split transfer devices and compatible replacement devices, combining with new modes such as replacement transformation and EPC general contracting, to reduce transformation costs, shorten on-site power outage time, and greatly improve technical transformation construction efficiency; at the same time, injects new strength into the implementation of technical transformation to solve the understaffed problem in the secondary technical transformation.