The paper further elaborates on the integration of digital twin technology with $G in power substations, presenting a groundbreaking approach to upgrading the efficiency, reliability, and responsiveness of power distribution systems. It examines in depth the symbiosis between the sophisticated real-time data analytics and remote monitoring capabilities afforded by digital twins, and the unparalleled communication speed and low latency provided by 5Gtechnology. By offering a detailed framework for the digitalization of substations, the paper ventures into the technological intricacies, diverse applications, and the significant operational and economic advantages of this integration. It meticulously discusses the hurdles encountered during the implementation phase, mapping out detailed solutions and a strategic pathway for the comprehensive modernization of power distribution infrastructures. This extensive exploration aims to significantly contribute to the digital transformation efforts within the energy sector, highlighting the pivotal role of advanced technologies in fostering the enhancement of grid performance and ensuring environmental sustainability.