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. 18, 2014
Filed:
Nov. 12, 2010
Guangfan LI, Beijing, CN;
Jie Yang, Beijing, CN;
Jinzhong LI, Beijing, CN;
Xiaocen HU, Beijing, CN;
Shuqi Zhang, Beijing, CN;
Yuewen Qi, Beijing, CN;
Xiaoning Wang, Beijing, CN;
Ninghua Wang, Beijing, CN;
Guangfan Li, Beijing, CN;
Jie Yang, Beijing, CN;
Jinzhong Li, Beijing, CN;
Xiaocen Hu, Beijing, CN;
Shuqi Zhang, Beijing, CN;
Yuewen Qi, Beijing, CN;
Xiaoning Wang, Beijing, CN;
Ninghua Wang, Beijing, CN;
China Electric Power Research Institute, Beijing, CN;
Abstract
A partial discharge test power supply system for an extra high voltage transformer comprises: an electric motor (); an intermediate frequency generator () driven by the electric motor and outputting an intermediate frequency voltage; a middle transformer () receiving the intermediate frequency voltage and outputting a test voltage to be applied to a test sample () by a generator outlet (); a low-voltage compensating reactor () connected between the intermediate frequency generator and the middle transformer; a high-voltage compensating reactor () connected between the middle transformer and the sample; wherein the electric motor and the intermediate frequency generator are arranged in a metal housing (). The system also includes the following filters: a filter (a) arranged in the excitation circuit of the intermediate frequency generator, a filter (b) arranged between the high-voltage compensating reactor and the sample and a filter (c) arranged between the generator outlet and the low-voltage compensating reactor. The system provides a simple and reliable power source system with little background interference for the extra high voltage partial discharge tests.