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:
Sep. 19, 2023
Filed:
Dec. 30, 2020
State Grid Liaoning Electric Power Research Institute, Liaoning, CN;
Yuxiao Zhou, Liaoning, CN;
Lu Liu, Liaoning, CN;
Honggang Han, Liaoning, CN;
Xuchen Lu, Liaoning, CN;
Jianhong Kong, Liaoning, CN;
Defu Wei, Liaoning, CN;
Tie Guo, Liaoning, CN;
Hao Chen, Liaoning, CN;
Yang Liu, Liaoning, CN;
Nan Wang, Liaoning, CN;
Zijian Zhao, Liaoning, CN;
Shiqing Wang, Liaoning, CN;
Chang Liu, Liaoning, CN;
Dawei Jiang, Liaoning, CN;
Yue Gao, Liaoning, CN;
State Grid Liaoning Electric Power Research Institute, Shenyang, CN;
Abstract
A device and method for degassing an on-load tap-changer (OLTC) of a transformer for convenient on-site operation. The degassing device includes an OLTC. The OLTC is respectively connected with an oil suction pipe and an oil injection pipe. One end of the oil suction pipe extends to the inside bottom of the OLTC, and the other end of the oil suction pipe extends to the outside of the OLTC to connect with an oil suction and degassing device. One end of the oil injection pipe extends to an upper part inside the OLTC, and the other end of the oil injection pipe extends to the outside of the OLTC to connect with a vacuum oil injection device. The present disclosure has the advantages of convenient on-site operation, excellent degassing effect, simple structure and convenient installation, reduces degassing time and manpower and investment in maintenance, and improves degassing quality.