OVERALL PERFORMANCE TESTING SYSTEM IN TURBINE SPEED GOVERNOR CONTROL SYSTEM

摘要

The present invention relates to the better comprehensive performance testing systems of turbine governor control system that one can integrally control a turbine governor control system as a single device in nuclear power plant. Configuration is mostly made of a mainframe 100 and a test cabinet 200. In mainframe 100, for controlling a signal of the secondary speed that one continuously simulates and being mounted on the turbine speed sensor in field, the pressure measured in adjuster for selecting the signal of control signal and logical signal to output and input, and by a field on the basis of channel one by one of the computer operation of user is as the valve opening measuring signal. According to this control, test cabinet 200 generate the secondary speed signal of a simulation wherein frequency continuously have with amplitude mainframe 100 simulation secondary speed adjustment signal consistent, export a ratio or stepped voltage signal in the secondary speed signal generator 210 of simulation and according to from the voltage control signal of ratio and step voltage signal generator 220. The contact type logical signal that contact type logic signal input end and the output of output card 230 are exported from external adjuster, field data acquisition unit 250 measures and exports the pressure measured in field as a voltage signal and valve opening state, DC power supply unit 240 is output to the transistor logic signal of DC power supply unit 240, is stably driven with to respective component supplying DC. Therefore, the present invention can provide the secondary speed signal that scene senses identical one stable simulation with actual speed, a logical signal can be provided to computer, stable power supply is provided, reduce the number of test, expenses are reduced, the service life of steam control valve is extended, shorten testing time less manpower.