Title:
STATIONARY INDUCTION MACHINE AND STATIONARY INDUCTION MACHINE FAULT MONITORING SYSTEM
Document Type and Number:
WIPO Patent Application WO/2018/230044
Kind Code:
A1
Abstract:
Provided is a fault monitoring system capable of detecting directly an anomaly in the waveform or the amplitude of magnetic flux density in the iron core of a stationary induction machine. The stationary induction machine fault monitoring system comprises: magnetic field detection means for detecting a magnetic field commensurate with the magnetic flux density of the iron core, each disposed on the surface of a yoke section in the iron core of the stationary induction machine, which excludes the portions wound with a winding wire and serving as magnetic legs; and a first determination means sending out a determination signal if the amplitude of the voltage delivered commensurately with the magnitude of the magnetic field linked with the magnetic field detection means is a fixed value or greater.
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Inventors:
KURITA NAOYUKI (JP)
KOBAYASHI CHIE (JP)
NAKANOUE KENJI (JP)
HIRANO YUTA (JP)
KOBAYASHI CHIE (JP)
NAKANOUE KENJI (JP)
HIRANO YUTA (JP)
Application Number:
PCT/JP2018/006004
Publication Date:
December 20, 2018
Filing Date:
February 20, 2018
Export Citation:
Assignee:
HITACHI INDUSTRY EQUIPMENT SYSTEMS CO LTD (JP)
International Classes:
H01F41/00; H01F30/10; H01F30/12; H02H7/04
Foreign References:
| JP2017072481A | 2017-04-13 | |||
| JPH1140429A | 1999-02-12 | |||
| JPS61289975A | 1986-12-19 | |||
| JPH01157219A | 1989-06-20 | |||
| JP2004037147A | 2004-02-05 |
Attorney, Agent or Firm:
SEIRYO I.P.C. (JP)
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