Thermal power plant denitration is one of the important measures of atmospheric controlling. The denitration process is usually divided into SNCR process
SCR process and SNCR/SCR hybrid process. The process adopts liquid ammonia or urea as reducing agent. With urea pyrolysis as the denitration project of reducing agent as research object
this paper discusses the electrical system design in detail with examples and compares the similarities and differences of urea denitration electrical system and liquid ammonia denitration electrical system to provide reference for the similar engineering design.