Druckimpulsdiagnose eines Laststufenschalters

Details

Veröffentlichungs-Nr.

EP4307329

Aktenzeichen

EP22184946

Anmeldetag

14. Juli 2022

Veröffentlichung

5. März 2025

Erteilung

5. März 2025

Rechtsraum

EP

IPC

H01H9/00// H01H33/668

Abstract

The disclosure relates to a method for monitoring a vacuum on-load tap changer (1) comprising determining (S4) a total main vacuum interrupter opening time (TMV) as a time elapsed between a first point in time (t1) and a second point in time (t2), a total resistor vacuum interrupter opening time (TRV) as a time elapsed between the third point in time (t3) and the fourth point in time (t4), a circulating current time (TCC) as a time elapsed between the second point in time (t2) and the third point in time (t3), and/or a switch time (TS) as the sum of the total main vacuum interrupter opening time (TMV), the total resistor vacuum interrupter opening time (TRV) and the circulating current time (TCC).

Anmelder

Firma

Hitachi Energy Ltd

Land

🇨🇭 Schweiz

Fachgebiete