针对变压器强油风冷控制系统电气控制回路继电式控制方式存在的可靠性差、保护功能不全、不易扩展、没有通信接口等问题,提出了用功能强、可靠性高的PCC代替继电式开关对控制回路进行改造的方法,设计了一种新型变压器强油风冷控制系统。实际运行表明,该装置运行可靠、控制准确、功能完善,并具有显著的节能效果。 Aiming at the problems such as the poor reliability, the insufficiency of protection, the difficulty of expansion and the lack of communication interface for the control circuit of the electric control loop of the strong oil-air-cooled control system of the transformer, this paper proposes to replace the relay with the powerful and reliable PCC The control loop transformation method, designed a new type of transformer strong oil air cooling control system. The actual operation shows that the device is reliable, accurate control, perfect function, and has significant energy saving effect.