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:
May. 05, 2026
Filed:
Aug. 30, 2023
Electric Power Research Institute of Yunnan Power Grid Co., Ltd., Kunming, CN;
Xiangyu Tan, Kunming, CN;
Yong Lu, Kunming, CN;
Wenyun Li, Kunming, CN;
Yi MA, Kunming, CN;
Lijun Tang, Kunming, CN;
Wenbin Zhang, Kunming, CN;
Xiaowei Xu, Kunming, CN;
Fangrong Zhou, Kunming, CN;
Xingmei Zhou, Kunming, CN;
Abstract
An apparatus for non-contact current and voltage composite measurement includes: a current signal detection device, a voltage signal detection device, a zero-crossing detection circuit, and a control unit. The current signal detection device generates a current-induced electromotive force based on current flowing on the transmission line to be measured when there is current-voltage passing through the transmission line to be measured; the voltage signal detection device generates a voltage-induced electromotive force based on voltage flowing on the transmission line to be measured when there is current-voltage passing through the transmission line to be measured. The zero-crossing detection circuit performs zero-crossing detection on the current-induced electromotive force and the voltage-induced electromotive force to determine the phase difference between them. After calibrating the phase difference by the control unit, the control unit can simultaneously output current value, voltage value and power value of the transmission line to be measured.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile