EP 0252808 B1 19930825 - COMMAND AND CONTROL DEVICE FOR A CONTACTOR, AND CORRESPONDING CONTROL PROCESS
Title (en)
COMMAND AND CONTROL DEVICE FOR A CONTACTOR, AND CORRESPONDING CONTROL PROCESS
Publication
Application
Priority
FR 8609741 A 19860704
Abstract (en)
[origin: EP0252808A1] A contactor provided for AC is DC fed, the coil 1 being in series with a transistor 5 operating as a chopper, and a resistor 7. At the measuring point 8, the current in the coil is compared with reference values. Each cycle of operation of the contactor comprises a feed period and a pause. At the end of the pause, a measurement of the current in the coil enables the position of the armature to be determined. <IMAGE>
IPC 1-7
IPC 8 full level
H01H 9/16 (2006.01); H01H 47/32 (2006.01)
CPC (source: EP)
H01H 9/167 (2013.01); H01H 47/325 (2013.01)
Designated contracting state (EPC)
AT CH DE ES GB IT LI NL SE
DOCDB simple family (publication)
EP 0252808 A1 19880113; EP 0252808 B1 19930825; AT E93649 T1 19930915; DE 3787132 D1 19930930; DE 3787132 T2 19940331; ES 2042592 T3 19931216; FR 2601191 A1 19880108; FR 2601191 B1 19881021
DOCDB simple family (application)
EP 87401521 A 19870701; AT 87401521 T 19870701; DE 3787132 T 19870701; ES 87401521 T 19870701; FR 8609741 A 19860704