(GE-LSTG) BWR Turbine Supervisory Instruments
Course Overview
This LD describes each of the turbine supervisory instruments; the key-phasor (or phase reference generator), eccentricity detector, speed, valve position, shell expansion, differential expansion, rotor expansion, thrust position, vibration, and steam/metal thermocouples. For each, both the original GE type and the newer Bently-Nevada type instrument is described. Also described is the purpose of the instrument, the interpretation of data, likely causes of operational problems and how to use the instrumentation for troubleshooting and decision making. All related alarms and alarm responses are included in this discussion.