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:
Nov. 10, 1992
Filed:
Aug. 13, 1990
Hiromasa Higasa, Kagawa, JP;
Fumihiko Ishikawa, Kagawa, JP;
Shigenori Matsumura, Kagawa, JP;
Soichi Yamanaka, Kyoto, JP;
Nissin Electric Co., Ltd., Kyoto, JP;
Shikoku Research Institute Incorporated, Kagawa, JP;
Shikoku Electric Power Co., Inc., Kagawa, JP;
Abstract
A connection control device for controlling the connection of a small generator unit, which is installed at the consumer's location, to an electric power system. The connection control device detects variations in frequency components which result from interruptions in the distribution of electric power to the consumer from the electric power system. When a significant variation in a frequency component is present, the connection control device disconnects the consumer from the electric power system in order to prevent injury to line workers.