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. 16, 2017
Filed:
Oct. 23, 2014
State Grid Chongqing Electric Power Co. Electric Power Research Institute, Chongqing, CN;
State Grid Corporation of China, Beijing, CN;
Xingzhe Hou, Chongqing, CN;
Jin Fu, Chongqing, CN;
Qian Wang, Chongqing, CN;
Minghui Bao, Chongqing, CN;
Gaolin Wu, Chongqing, CN;
Shiyu Tang, Chongqing, CN;
Yongliang Ji, Chongqing, CN;
Wei Chen, Chongqing, CN;
Abstract
A grounding grid breakpoint diagnostic method for a transient electromagnetic method, based on a transient electromagnetic detection apparatus. The method comprises: () disposing a test line at a position above a grounding grid to be diagnosed on the ground, and determining coordinates of a detection point; () obtaining information about coordinates of the detection point, and coinciding the center of the transient electromagnetic detection apparatus with the coordinates of the detection point; () performing, by the transient electromagnetic detection apparatus, measurement along the test line point by point, so as to obtain measurement data; () processing, by using diagram forming software, the measurement data to form a longitudinal resistivity cross-section diagram of the detection point according to a preset formula; () determining whether a breakpoint occurs at the detection point according to the longitudinal resistivity cross-section diagram. The method does not depend on a design material of a grounding grid, and can implement non-excavation grounding grid breakpoint diagnosis without outage, thereby reducing economic losses in a diagnosis process.