Monitoring of Rotor-Stator Interaction in Pump-Turbine Using Vibrations Measured with On-Board Sensors Rotating with Shaft

Table 1

Amplitudes in spectrums of measurements.

		Relative amplitude
		𝑍𝐵𝑓	2𝑍𝐵𝑓	3𝑍𝐵𝑓	4𝑍𝐵𝑓	5𝑍𝐵𝑓
Pressure	𝑃3	0.35	1.00	0.53	0.35	0.20
Vibration in guide bearing	𝐵1	0.03	1.00	0.02	0.03	0.25
Vibration rotating with shaft	𝑆12	0.32	1.00	0.06	0.07	0.05