EP 0090336 B1 19890125 - CIRCUIT ARRANGEMENTS FOR DISCHARGING CAPACITORS BY MEANS OF A RELAY
Title (en)
CIRCUIT ARRANGEMENTS FOR DISCHARGING CAPACITORS BY MEANS OF A RELAY
Publication
Application
Priority
DE 3211549 A 19820329
Abstract (en)
[origin: EP0090336A2] 1. Circuit arrangement for discharging capacitances by means of a relay, a reactor (33) and a resistor (11) being arranged in series with a contact (a) of the relay (A) and an RC series circuit (15, 23) being provided in parallel with the contact (a), in particular for the automatic closing of an interrupted pover feeding loop before the point of interruption in the operationally provided pover feeding loop of a pover feeding facility, in which arrangement the reactor (33) exhibits a core of saturable magnetic material, characterized in that the inductance of the unsaturated reactor (33) is of such a magnitude and the RC series circuit (15, 23) is dimensioned in such a manner that an arc produced at the contact (a) when the contact (a) closes is extinguished after the vinding capacitance of the reactor (33) has been charged and the capacitor (23) of the RC series circuit (15, 23) has been discharged, and that the capacitor (23) is dimensioned of sufficient size for the voltage produced across the RC series circuit (15, 23) after the extinction of the arc to remain below the minimum value of the flashover voltage of the contact (a) during the closing process of the contact (a), in which arrangement the voltage/time area produced up to the saturation of the reactor (33) is of such a size that the saturation occurs only after the closing of the contact (a).
IPC 1-7
IPC 8 full level
H01H 9/54 (2006.01)
CPC (source: EP)
H01H 9/54 (2013.01)
Citation (examination)
SIEMENS ZEITSCHRIFT 48 (1974), Beiheft "Nachrichten-Übertragungstechnik", p. 111
Designated contracting state (EPC)
AT BE CH DE FR GB IT LI NL SE
DOCDB simple family (publication)
EP 0090336 A2 19831005; EP 0090336 A3 19860319; EP 0090336 B1 19890125; AT E40492 T1 19890215; DE 3211549 A1 19831006; DE 3379087 D1 19890302
DOCDB simple family (application)
EP 83102853 A 19830322; AT 83102853 T 19830322; DE 3211549 A 19820329; DE 3379087 T 19830322