Diagnostic system monitors gearboxes at hydro plant
Journal Article
·
· Power (New York)
OSTI ID:100688
This article describes how, by applying real-time, tooth-by-tooth vibration ``imaging,`` this system detects gear-tooth defects -- such as pitting and cracking. To keep Swan Falls hydroelectric generating station in service, Idaho Power Co constructed a new two-unit, open-pit-turbine powerhouse. Swan Falls, Kuna, Idaho, the oldest on the Snake River, services southern Idaho and parts of Oregon -- one of 17 hydroelectric plants maintained by the utility. The hydro units use speed increasers (gearboxes) so higher-speed generators are possible. To monitor these gearboxes, engineers at Swan Falls required a continuous on-line predictive maintenance system. The system monitors the planetary step-up gearboxes in the two main 12.5-MW pit turbine/generators. In some Idaho Power plants with a similar hydro turbine/generator design, the gearboxes have experienced major failures, leading to hundreds of thousands of dollars in collateral damage.
- OSTI ID:
- 100688
- Journal Information:
- Power (New York), Journal Name: Power (New York) Journal Issue: 6 Vol. 139; ISSN POWEAD; ISSN 0032-5929
- Country of Publication:
- United States
- Language:
- English
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