Detection of temperature sensor failure in turbine systems

A device for detecting a temperature sensor failure in a turbine system, the device comprising:

• a unit for obtaining individual measurement values from each temperature sensor in a group of temperature sensors,
• a unit for calculating a characteristic value for each temperature sensor in the group based on the measurement values obtained for the corresponding temperature sensor,
• a unit for selecting a first temperature sensor of the group and an associated first characteristic value,
• a unit for selecting a temperature sensor with a maximum characteristic value of the calculated characteristic values from a subgroup of temperature sensors that includes all of the temperature sensors of the group except the first temperature sensor,
• a unit for determining a first maximum value as the maximum characteristic value, and
• a unit for determining that the first temperature sensor is defective when the first characteristic value is larger than the first maximum value multiplied by a predetermined factor.