Patent · US Active

Load tap changer

US9557754B2 · kind B2 · utility

3Cited by

4References

20Claims

0Family size

Assignee

General Electric Company · US

Inventors

Ara Panosyan · Munich, DE
Eva-Maria Baerthlein · Hamburg, DE
Simon Herbert Schramm · Bayern, DE
Stefan Schroeder · Garching bei München, DE
Rohit Gupta · Redmond, US
Pinwan Thiwanka Bandara Wijekoon · Munich, DE
Malcolm Graham Smith, Jr. · Fillmore, US

Key dates

Filing date	Apr 22, 2014
Grant date	Jan 31, 2017
Priority date	—
Expiry date	May 7, 2035

Classification

Technology area (CPC H)Electricity
CPC primaryH01H9/0005
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A method of switching taps of an on-load tap changer includes providing a main finger, a first side finger including a first solid state switch and a second side finger including a second solid state switch. The main finger, the first side finger and the second side finger are utilized to provide a connection between the taps and a power terminal of the on-load tap changer. The method also includes triggering the on-load tap changer to shift the fingers from a first tap to a second tap of the on-load tap changer when a tap change signal is received and utilizing the first solid state switch and the second solid state switch to commutate a current during the tap change operation.

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