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Title: System and method of detecting cavitation in pumps

A system and method for detecting cavitation in pumps for fixed and variable supply frequency applications is disclosed. The system includes a controller having a processor programmed to repeatedly receive real-time operating current data from a motor driving a pump, generate a current frequency spectrum from the current data, and analyze current data within a pair of signature frequency bands of the current frequency spectrum. The processor is further programmed to repeatedly determine fault signatures as a function of the current data within the pair of signature frequency bands, repeatedly determine fault indices based on the fault signatures and a dynamic reference signature, compare the fault indices to a reference index, and identify a cavitation condition in a pump based on a comparison between the reference index and a current fault index.
Inventors:
; ; ;
Issue Date:
OSTI Identifier:
1397258
Assignee:
Eaton Corporation GFO
Patent Number(s):
9,777,748
Application Number:
12/753,930
Contract Number:
FC36-04GO14000
Resource Relation:
Patent File Date: 2010 Apr 05
Research Org:
Eaton Corporation, Cleveland, OH (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING

Works referenced in this record: