An Overview of Turbine Supervisory Instrumentation (TSI)

Turbine Supervisory Instrumentation (TSI) or Turbine Supervision Equipment (TSE) is a generic term used in the power generation industry. TSI refers to instrumentation systems that specifically perform measurements of critical control parameters on large steam turbine generator trains. The size of the machines can range between 50 and 1 200 MW and their age can often be in excess of 30 years. TSI systems are normally a mandatory requirement.

The same technology is employed on other turbine types and in other industries, such as the hydrocarbon-processing sector.

However in these areas, different terminology tends to be used. 

This application note briefly introduces Turbine Supervisory Instrumentation. A detailed examination of each specific TSI measurement can be found in related SKF Reliability Systems application notes.