Machine protection and diagnostic systems and methods

A system comprising:

• at least one sensor coupled to a machine containing one or more rotating parts, the at least one sensor configured to obtain one or more performance parameters of the machine when the one or more rotating parts are rotating;
• a database configured to at least store data indicative of a historical trend of the one or more performance parameters;
• and
• a diagnostic system comprising a processor, the processor configured to execute a diagnostic procedure, the diagnostic procedure comprising:
• deriving a system performance index of the machine based on the one or more performance parameters obtained by the at least one sensor;
• using the data stored in the database to derive at least one sub-system performance index that is associated with a sub-system of the machine;
• deriving an asset health index based on combining the system performance index and the at least one sub-system performance index;
• and
• generating at least one of a warning signal or a trip signal when the asset health index exceeds a threshold value, the trip signal operative to initiate a protective action upon the machine.

A non-transitory computer-readable storage medium having stored thereon, instructions executable by a computer for performing operations comprising:

• obtaining from one or more sensors coupled to a machine, one or more performance parameters of the machine when at least one rotating part of a sub-system of the machine is rotating;
• deriving a system performance index of the machine based on the one or more performance parameters;
• using one or more protection models to derive at least one sub-system performance index that is associated with the sub-system;
• deriving an asset health index based on combining the system performance index and the at least one sub-system performance index;
• generating a trip signal when the asset health index exceeds a threshold value;
• and
• transmitting the trip signal to at least one protection device to execute a protective action upon the machine.