The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 01, 2004
Filed:
Aug. 27, 2001
Tomoki Fukushima, Saitama, JP;
Yoshiaki Kotani, Saitama, JP;
Takao Tamechika, Saitama, JP;
Kenji Kamimura, Saitama, JP;
Honda Giken Kogyo Kabushiki Kaisha, Tokyo, JP;
Abstract
A fault on the generator can be detected with the use of a simple arrangement. The output of the generator which has multi-phase winding and is driven by an engine is rectified and then converted by an inverter into an alternating current at the frequency of a system before interconnected to the source of the system. After the engine is started, the direct current voltage Vdc is monitored with a first fault monitor . When the direct current voltage Vdc rises up to a predetermined level, a connector relay is closed. As the output of the inverter is increased, the interconnection with the system source is enabled. After the interconnection, the direct current voltage and the output of the inverter are monitored with a second fault monitor . If the direct current voltage drops down to below the predetermined level before the output of the inverter reaches a rated level, the canceling and re-interconnection is repeated. Then, when the direct current voltage remains below the predetermined level after the re-interconnection, it is judged that the generator has a fault such as a line breakage in the windings disconnection.