Patent · US Active

Method of operating parallel transformers

US10193341B2 · kind B2 · utility

0Cited by

9References

8Claims

0Family size

Assignee

MASCHINENFABRIK REINHAUSEN GMBH · DE

Inventors

Stefan Abelen · Regensburg, DE
Daniel Preissler · Obertraubling, DE
Audrius Ilgevicius · Regensburg, DE
Karsten Viereck · Teisendorf, DE
Tobias Wagner · Cologne, DE
Tobias Gruber · Regenstauf, DE

Key dates

Filing date	Nov 25, 2015
Grant date	Jan 29, 2019
Priority date	—
Expiry date	Nov 25, 2035

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02E40/30
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

Transformers are in a parallel circuit in which a tap changer with a control sensor is associated with each of the transformers and all control sensors are connected together by a communications connection. Each control sensor generates a measurement that is transferred by the communications connection. A measurement is generated with each of the control sensors, and at least one of the measurements of the control sensors of the transformers by the communications connection is transferred to N−1 control sensors. Then a controlling deviation caused by a circuit reactive current is calculated for each control sensor on the basis of the measurements of the control sensors. Finally the tap changer associated with each transformer is actuated by the respective control sensor as a function of the calculated controlling deviation such that minimization of the circuit reactive current is carried out for the respective transformer.

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