| 发明名称 |
Deterioration Diagnosis System |
| 摘要 |
Provided is a deterioration diagnosis system which diagnoses deterioration of an N-phase rotational machine (N denotes a natural number). The deterioration diagnosis system includes a first current sensor to be attached individually to at least lead wires of (N-1)-phases in a rotational machine, the first current sensor being able to detect a current amplitude arising from a plurality of deterioration causes, and a second current sensor to be attached collectively to the lead wires of all phases in the rotational machine, the second current sensor being able to detect a current amplitude arising from a plurality of deterioration causes. |
| 申请公布号 |
US2015331051(A1) |
申请公布日期 |
2015.11.19 |
| 申请号 |
US201514707245 |
申请日期 |
2015.05.08 |
| 申请人 |
Hitachi, Ltd. |
发明人 |
MAKI Kohji;YUDA Shinya;KOJIMA Hiroaki;KIKUCHI Satoshi;ENDO Hisashi |
| 分类号 |
G01R31/34;G01M13/04;G01R31/12 |
主分类号 |
G01R31/34 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A deterioration diagnosis system configured to diagnose deterioration of an N-phase rotational machine (N denotes a natural number), comprising:
a first current sensor to be attached individually to at least lead wires of (N-1)-phases in the rotational machine, so as to detect a current amplitude arising from a plurality of deterioration causes; and a second current sensor to be attached collectively to the lead wires of all phases in the rotational machine, so as to detect a current amplitude arising from a plurality of deterioration causes. |
| 地址 |
Tokyo JP |
