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Equipment and method for diagnosing sliding condition of rotating electrical machine
US9217708B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9217708-B2 |
| Application number | US-201314065531-A |
| Country | US |
| Kind code | B2 |
| Filing date | Oct 29, 2013 |
| Priority date | Oct 30, 2012 |
| Publication date | Dec 22, 2015 |
| Grant date | Dec 22, 2015 |
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Abstract
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Disclosed are equipment and method for diagnosing the sliding condition of a rotating electrical machine that make it possible to achieve early detection of abnormal sliding with a simple configuration containing flexibly arranged elements and reduce the downtime and maintenance cost of the rotating electrical machine. The equipment for diagnosing the sliding condition of a rotating electrical machine includes a light source that emits light onto the sliding surface of a collecting brush relative to the surface of a rotating body of the rotating electrical machine, a light-receiving section that receives the light reflected from the sliding surface, and a determination section that processes a signal from the light-receiving section. The determination section detects an increase in a specific wavelength component of the reflected light to determine whether the sliding condition of the rotating body surface of the rotating electrical machine is abnormal.
First claim
Opening claim text (preview).
What is claimed is: 1. Equipment for diagnosing a sliding condition of a rotating electrical machine, the equipment comprising: a light source that emits light onto a sliding surface of a collecting brush relative to a surface of a rotating body of the rotating electrical machine; a light-receiving section that receives light reflected from the sliding surface; and a determination section that processes a signal from the light-receiving section; wherein the determination sec…
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Electricity · mapped topic
Physics · mapped topic
Physics · mapped topic
- G01N21/55Primary
Physics · mapped topic
Physics · mapped topic
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Frequently asked questions
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- What does patent US9217708B2 cover?
- Disclosed are equipment and method for diagnosing the sliding condition of a rotating electrical machine that make it possible to achieve early detection of abnormal sliding with a simple configuration containing flexibly arranged elements and reduce the downtime and maintenance cost of the rotating electrical machine. The equipment for diagnosing the sliding condition of a rotating electrical …
- Who is the assignee on this patent?
- Mitsubishi Hitachi Power Sys
- What technology area does this patent fall under?
- Primary CPC classification G01N21/55. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Dec 22 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).