EP 0911842 A3 20000405 - Method for monitoring a tap changer
Title (en)
Method for monitoring a tap changer
Title (de)
Verfahren zur Funktionsüberwachung von Stufenschaltern
Title (fr)
Procédé de surveillance d'un sélecteur de prises
Publication
Application
Priority
DE 19746574 A 19971022
Abstract (en)
[origin: US6100674A] 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.
IPC 1-7
IPC 8 full level
H01F 29/04 (2006.01); G01R 31/56 (2020.01); G05F 1/147 (2006.01); H01H 9/00 (2006.01); H01H 71/04 (2006.01); H02J 3/00 (2006.01); H02J 13/00 (2006.01)
CPC (source: EP KR US)
H01H 9/0005 (2013.01 - EP KR US); H01H 9/0033 (2013.01 - KR); H01H 2009/0061 (2013.01 - EP KR US)
Citation (search report)
- [DA] DE 4214431 A1 19931111 - REINHAUSEN MASCHF SCHEUBECK [DE]
- [A] US 3735243 A 19730522 - DOWNS C, et al
- [DA] DD 246409 A1 19870603 - LIEBKNECHT TRANSFORMAT [DD]
- [DA] PATENT ABSTRACTS OF JAPAN vol. 010, no. 011 (E - 374) 17 January 1986 (1986-01-17)
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
US 6100674 A 20000808; AT E251793 T1 20031015; BG 102769 A 19990430; BG 63481 B1 20020228; BR 9805104 A 19991109; BR 9805104 B1 20101214; CA 2250625 A1 19990422; CN 1109945 C 20030528; CN 1222695 A 19990714; CZ 295387 B6 20050713; CZ 328998 A3 19990512; DE 19746574 C1 19990204; DE 59809854 D1 20031113; DK 0911842 T3 20040216; EP 0911842 A2 19990428; EP 0911842 A3 20000405; EP 0911842 B1 20031008; ES 2203862 T3 20040416; HK 1020800 A1 20000519; HU 221833 B1 20030128; HU 9802215 D0 19981228; HU P9802215 A2 19990528; HU P9802215 A3 20010129; JP H11225437 A 19990817; KR 100474643 B1 20050602; KR 19990037153 A 19990525; RU 2199809 C2 20030227; UA 52654 C2 20030115
DOCDB simple family (application)
US 17456698 A 19981016; AT 98116788 T 19980905; BG 10276998 A 19980915; BR 9805104 A 19981022; CA 2250625 A 19981016; CN 98121399 A 19981021; CZ 328998 A 19981013; DE 19746574 A 19971022; DE 59809854 T 19980905; DK 98116788 T 19980905; EP 98116788 A 19980905; ES 98116788 T 19980905; HK 99104839 A 19991027; HU P9802215 A 19981005; JP 29873898 A 19981020; KR 19980043306 A 19981016; RU 98119075 A 19981021; UA 98105542 A 19981021