Turbine supervisory success for Sensonics in Asia

摘要

Condition monitoring specialists Sensonics are enjoying continued success both at home and in Asia with new contracts for their innovative Sentry G3, high performance machine protection system. In addition to a number of successful installations at power plants in China is another project in Vietnam at the PhaLai Thermal Power Plant. In conjunction with local agents AKA Vietnam, Sensonics supplied transducers and a Sentry G3 Turbine Monitoring/protection system for the 110MW Russian built turbine The 'retrofit' project was fairly complex and included a number of measurement modes that the Sentry G3 system was required to monitor. For example, Shaft position measurement and protection; where the relative position of the turbine shaft is monitored within the bearings. The system automatically shuts down the turbine if the relative position moves outside a pre-set window. For the 110MW machine, this occurs should the shaft move towards the generator side by more than 1.2mm or when the shaft moves towards the turbine side by more than 1.7mm (-1.7mm to + 1,2mm allowable movement).