Patent · US Active

Star point grounding with overvoltage limitation for a polyphase transformer

US11476662B2 · kind B2 · utility

0Cited by

3References

15Claims

0Family size

Assignee

Siemens Energy Global GmbH & Co. KG · DE

Inventors

Torsten Priebe · Erlangen, DE
Christian Schacherer · Hallerndorf, DE
Roland Schuster · Erlangen, DE

Key dates

Filing date	Sep 27, 2018
Grant date	Oct 18, 2022
Priority date	—
Expiry date	Sep 27, 2038

Classification

Technology area (CPC H)Electricity
CPC primaryH02H9/041
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

An arrangement contains a polyphase transformer which has primary windings and secondary windings. The secondary windings are connected to form a star circuit, the star point of which is connected to earth potential by means of an overvoltage-limiting device. The overvoltage-limiting device has a first overvoltage-limiting component. A switch, which electrically bridges the first overvoltage-limiting component in its closed state, is assigned to the first overvoltage-limiting component.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.