EP 1466336 B1 20090722 - METHOD FOR DETERMINING WEAR OF A SWITCHGEAR CONTACTS
Title (en)
METHOD FOR DETERMINING WEAR OF A SWITCHGEAR CONTACTS
Title (de)
VERFAHREN ZUM FESTSTELLEN VON KONTAKTVERSCHLEISS EINES ELEKTRISCHEN GERÄTES
Title (fr)
PROCEDE POUR DETERMINER L'USURE DES CONTACTS D'UN APPAREIL INTERRUPTEUR
Publication
Application
Priority
- FR 0204413 W 20021217
- FR 0117104 A 20011221
Abstract (en)
[origin: FR2834120A1] The pole contact (C1,C2,C3) wear determination method has an electromagnet (20) with movement controlled by a field coil (21). Wear is determined on the basis of the contact wear stroke produced during a movement closing the electromagnet. An electric signal is measured on the conducting status of a power pole, by measuring the excitation current flowing in the coil on a time basis. The measured wear time is then compared with the initial travel time.
IPC 8 full level
H01H 1/00 (2006.01); H01H 47/00 (2006.01)
CPC (source: EP KR US)
H01H 1/00 (2013.01 - KR); H01H 1/0015 (2013.01 - EP US); H01H 71/04 (2013.01 - KR); H01H 2071/044 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SI SK TR
DOCDB simple family (publication)
WO 03054895 A1 20030703; AT E437444 T1 20090815; AU 2002364323 A1 20030709; CN 1261951 C 20060628; CN 1618110 A 20050518; DE 60233074 D1 20090903; EP 1466336 A1 20041013; EP 1466336 B1 20090722; ES 2327220 T3 20091027; FR 2834120 A1 20030627; FR 2834120 B1 20040206; JP 2005513729 A 20050512; JP 4112497 B2 20080702; KR 100926394 B1 20091111; KR 20040071241 A 20040811; NO 20042941 L 20040901; NO 325543 B1 20080616; RU 2004122421 A 20050327; RU 2297065 C2 20070410; US 2005122117 A1 20050609; US 7109720 B2 20060919
DOCDB simple family (application)
FR 0204413 W 20021217; AT 02799097 T 20021217; AU 2002364323 A 20021217; CN 02827747 A 20021217; DE 60233074 T 20021217; EP 02799097 A 20021217; ES 02799097 T 20021217; FR 0117104 A 20011221; JP 2003555528 A 20021217; KR 20047009806 A 20021217; NO 20042941 A 20040712; RU 2004122421 A 20021217; US 49834805 A 20050114