Patent · US Active

Longitudinal voltage regulation at the line terminals of a phase shifting transformer

US10742028B2 · kind B2 · utility

2Cited by

10References

10Claims

0Family size

Assignee

ABB Power Grids Switzerland AG · CH

Inventors

Marko Wichert · Troisdorf, DE
Kevin Juchem · Bonn, DE
Oliver Derigs · Bad Breisig, DE

Key dates

Filing date	Oct 18, 2019
Grant date	Aug 11, 2020
Priority date	—
Expiry date	Oct 18, 2039

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02E40/10
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A phase shifting transformer for poly-phase alternating current includes source side terminals, load side terminals, an exciting unit, and a series unit. The exciting unit includes further coils that are magnetically coupled to primary coils and to the secondary coils of the exciting unit to provide further voltages. The further coils are connected in series between the source side terminals and the series unit, so that the voltages at the load terminals are combinations of the quadrature voltages and the further voltages with the source voltages, thus modifying the voltage phase displacement between the source side terminals and the load side terminals.

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