A power plant that converts some form of raw energy into electrical energy for use in fixed facilities or transportation, such as hydroelectric, steam, diesel, or nuclear power plants. Lianyungang Power Machinery Co., Ltd. specializes in providing various types of silencers, exhaust silencers, safety valve silencers, fan silencers, small hole silencers, steam silencers, exhaust silencers, boiler silencers, steam drum silencers, and other types of silencers, silencers, and noise reduction equipment. Steam liquid two-phase flow steam trap, water jet air extractor, complete set of automatic dosing device, sampling cooler, coal powder sampler, fly ash sampler, cold and hot air door, industrial water filter, isolation valve, deaerator and other electrical auxiliary equipment. Based on years of application experience of domestic and foreign peers in power plant microcomputer protection devices, combined with the actual characteristics of domestic comprehensive automation systems, a high-tech power automation product integrating protection, monitoring, control, communication and other functions has been developed and researched. It is an ideal electrical unit for forming intelligent switchgear. This product has a built-in protection library consisting of more than 20 standard protection programs, with complete and powerful acquisition functions for fast device voltage and current analog quantities and switch quantities (current measurement is achieved through protection CT). The power plant microcomputer protection device is composed of high integration, bus parallel chip microcontroller, high-precision current and voltage transformer, high insulation strength outlet intermediate relay, high reliability switch power module and other components. The microcomputer protection device for switchgear is mainly used for switchgear with voltage levels of 110KV and below. Power plants, substations, distribution stations, etc. can also be used as protection and measurement for voltage and current in some 70V-220V voltage level switchgear systems.