RST-S series ETS is single controller system, with redundant 220VAC and 24 VDC power supply, internal automatic switching. Important signals can be redundant design or design of 2 out of 3 voting. The system has fault self-diagnosis function. Products can be customized; other instruments and devices can be also added into the system according to user requirements, including operator panel or upper PC. The trip protections include electrical overspeed, high axial displacement, high vibration, high lube oil pressure, generator fault, low vacuum pressure in condenser, MFT protection, high temperature of thrust bearing pad bush-metal, DEH trip, manual trip, etc.