3500/65-01-00

3500/65-01-00

3500/65-01-00

The main frequency is 50Hz and its octave, and the data is collected under the steady-state operation of the unit. The steady-state operating speed of the unit is approximately 16737RPM (the rated speed on the machine nameplate), 278.95Hz; The speed of the motor is 2950 RPM, 49.16 Hz, and the vibration of the motor is generally very small and difficult to transmit through the gearbox and coupling. So the above vibration can definitely be AC noise interference. It is found that there is no obvious Warning sign pasted on the transmitter surface according to Bentley - it must be connected from the buffered output with an adapter. Fortunately, taking protective measures before collecting data did not cause a trip. However, there have been incidents in China where well-known vibration experts did not use adapters to collect data, leading to unit trips. This should be taken seriously. The two main functions of the adapter are to isolate the external power supply of the acquisition instrument and solve the reverse problem of the signal.