초록 ▼

A rotating machinery monitor provides a warning that is indicative of a developing problem with the rotating machinery. The rotating machinery monitor has at least one current sensor for detecting shaft grounding current in the rotating machinery, at least one voltage sensor for detecting shaft volt

A rotating machinery monitor provides a warning that is indicative of a developing problem with the rotating machinery. The rotating machinery monitor has at least one current sensor for detecting shaft grounding current in the rotating machinery, at least one voltage sensor for detecting shaft voltage in the rotating machinery, a change detector for determining rate of change in the shaft grounding current and a rate of change in the shaft voltage, and an evaluation system for producing a warning as a function of the change in the shaft grounding current, the rate of change in the shaft voltage, the shaft grounding current and the shaft voltage.

대표청구항 ▼

1. A rotating machinery monitor comprising:at least one current sensor for detecting shaft grounding current in the rotating machinery; at least one voltage sensor for detecting shaft voltage in the rotating machinery; a change detector for determining rate of change in the shaft grounding current a

1. A rotating machinery monitor comprising:at least one current sensor for detecting shaft grounding current in the rotating machinery; at least one voltage sensor for detecting shaft voltage in the rotating machinery; a change detector for determining rate of change in the shaft grounding current and a rate of change in the shaft voltage; a sampling device for data reduction wherein real-time shaft current values and real-time shaft voltage values are compressed over time; an evaluation system for producing a warning as a function of the change in the shaft grounding current, the rate of change in the shaft voltage and the average shaft grounding current; wherein the warning is indicative of a developing problem with the rotating machinery.