Application of a Fault Detection and Isolation System on a Rotary Machine

Table 2

Most common compressor faults.

Tag name	Description	Time dependency
FYI_89735	Fault in the first stage N2 mass flow sensor	Abrupt fault; incipient fault
ZT_89700	Fault in the first stage IGV positioner	Abrupt fault; incipient fault; intermittent fault
FYA_89710	Fault in the third stage N2 mass flow sensor	Abrupt fault; incipient fault
ZT_89704	Fault in the third stage IGV positioner	Abrupt fault; incipient fault; intermittent fault
FYA_89751	Fault in the N2 mass flow sensor relative to N2 flow at the head of the high pressure column	Abrupt fault; incipient fault