The power operation and maintenance service system is developed and strengthened based on the original system service department. It provides suggestions for the power supply companies at all levels in the pre-investigation, installation, commissioning, commissioning, acceptance, operation and maintenance of the power information collection project. Mainly dedicated to help customers solve the main system maintenance of the acquisition system; special change, negative control, plant terminal service; I and II type concentrator on-site service; I and II type collector on-site service. After years of exploration, we have developed a systematic and efficient operation and maintenance plan, and adjusted according to the operation of the on-site products to ensure that the customer's personalized service needs are met.