Abstract: This paper proposes an optimization method for power equipment condition monitoring and control systems based on high-precision Analog-to-Digital Converters. By deploying hardware timestamp-supported ADC modules on primary equipment such as arresters and transformers, combined with distributed data storage and intelligent analysis algorithms, real-time acquisition and fully automated analysis of equipment parameters are achieved. This method can be extended to various devices, including capacitive voltage transformers and circuit breakers, enabling online calculation of key parameters such as the dielectric loss angle and transformation ratio. Additionally, ADC technology significantly enhances power system reliability by simplifying equipment structures, reducing practical workloads, and optimizing control loops. It provides a new technical pathway for the digital transformation of smart substations.