Electricity: measuring and testing – Fault detecting in electric circuits and of electric components – Of individual circuit component or element
Patent
1997-03-05
1999-10-19
Brown, Glenn W.
Electricity: measuring and testing
Fault detecting in electric circuits and of electric components
Of individual circuit component or element
324772, 324687, G01R 3106, G01R 2726
Patent
active
059695315
ABSTRACT:
The inspection apparatus for inspecting performance of a structure such as stator windings of an electric rotating machine of the invention comprises a probe including a measuring element, an arm unit and a cylinder face circumferential moving apparatus. The arm unit has an arm link section supporting the probe (mainly comprising a leading end link assembly and an arm posture keeping mechanism), an arm housing section (mainly comprising a guide rail) regarding driving of this arm link section, and an arm driving mechanism. The arm driving mechanism causes the leading end link assembly to project from the guide rail at an angle toward a measuring position side of the stator windings relative to the axial direction of the rotor unit, while causing the arm link section to travel along the guide rail. The arm posture keeping mechanism is provided with a link wire and a spring, and maintains a straight arm posture of the leading end link assembly after projection from the guide rail.
REFERENCES:
patent: 4889000 (1989-12-01), Jaafar et al.
patent: 4901572 (1990-02-01), Suyama
patent: 5682102 (1997-10-01), Takahashi et al.
The American Society of Mechanical Engineers, 93-JPGC-PWR-26, pp. 1-6, Oct. 17-22, Lloyd R. Brown, et al., "Montana Power Company's Experience With Leaks In Water-Cooled Stator Windings".
Electric Power Research Institute, GER-3751A, pp. 1-13, Jun. 5-6, 1995, Bruce Faulk, et al., "Diagnosing And Repairing Water Leaks In Stator Windings".
Irie Satoshi
Kobayashi Yoshikata
Mizuno Sueyoshi
Munakata Tadashi
Murakami Shin
Brown Glenn W.
Kabushiki Kaisha Toshiba
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