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: DE19746574C1] The method involves detecting a measurement value representing the actual state of the monitored switch at short time intervals. The position of the switch is detected during changeover and the detected values combined into a position. The overall position or time range is divided into sub regions corresp. to successive time functions during a changeover. A characteristic value of the measurement value in each sub region is determined using defined computational procedures and is compared with a data set in non-volatile memory and classified so that a classification value is associated with it as an identifier. The identifier is processed, stored and used to generate identity dependent messages.
IPC 1-7
IPC 8 full level
G01R 31/56 (2020.01); H01F 29/04 (2006.01); 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