Analysis of Emergency Trip System Operation and Maintenance for Steam Turbine in Thermal Power Plants in Zhejiang Province

Through the summary and analysis of the operation condition,hardware configuration and regular tests of Emergency Trip System(ETS) for steam turbine of the main thermal units in Zhejiang province according to the field examination,papers points out the existing faults and hidden trouble and puts forward the improvement measures.It concludes the current ETS is still to be improved in respect of system power supply,controller communication,system configuration and test mode.