Patent · US Expired

Method of monitoring a tap changer

US6100674A · kind A · utility

17Cited by

1References

8Claims

0Family size

Assignee

MASCHINENFABRIK REINHAUSEN GMBH · DE

Inventors

Dieter Dohnal · Lappersdorf, DE
Christian Heudecker · Zeitlarn, DE
Karsten Viereck · Teisendorf, DE

Key dates

Filing date	Oct 16, 1998
Grant date	Aug 8, 2000
Priority date	—
Expiry date	Oct 16, 2018

Classification

Technology area (CPC H)Electricity
CPC primaryH01H2009/0061
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A method of monitoring a tap changer in which measured values representing the status of the tap change operation are associated with positions of the tap changer and the position range or time range for the tap change is subdivided into partial intervals for which characteristic values of the measurement are calculated by a calculating rule, e.g. averaging. These characteristic values are compared with stored parameter data and operation categories are established which are then used exclusively for the further information processing.

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