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:
Jun. 07, 2022
Filed:
Jun. 01, 2018
Hitachi Energy Switzerland Ag, Baden, CH;
Ying-Jiang Hafner, Ludvika, SE;
HITACHI ENERGY SWITZERLAND AG, Baden, CH;
Abstract
A neutral arrangement is provided for a converter station of a direct current power transmission system that includes a first converter. The neutral arrangement includes surge arrestors and a group of neutral buses. Each surge arrestor is connected between a neutral bus and ground. The neutral arrangement includes a high voltage insulation zoom area having a first group of surge arrestors and a low voltage insulation zoom area having a second group of surge arrestors. The surge arrestors in the first group have a first arrestor reference voltage and the surge arrestors in the second group have a second arrestor reference voltage that is lower than the first arrestor reference voltage.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile