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1. WO2022008118 - SHORT-CIRCUIT CURRENT LIMITER

Publication Number WO/2022/008118
Publication Date 13.01.2022
International Application No. PCT/EP2021/061861
International Filing Date 05.05.2021
IPC
H01H 1/02 2006.1
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
1Contacts
02characterised by the material thereof
H01H 9/10 2006.1
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
9Details of switching devices, not covered by groups H01H1/-H01H7/104
10Adaptation for built-in fuses
H01H 33/664 2006.1
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
33High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
60Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
66Vacuum switches
664Contacts; Arc-extinguishing means, e.g. arcing rings
Applicants
  • SIEMENS AKTIENGESELLSCHAFT [DE]/[DE]
Inventors
  • SCHACHERER, Christian
  • KRÄMER, Hans-Peter
  • TAYLOR, Erik D
Priority Data
10 2020 208 426.206.07.2020DE
Publication Language German (de)
Filing Language German (DE)
Designated States
Title
(DE) KURZSCHLUSSSTROMBEGRENZER
(EN) SHORT-CIRCUIT CURRENT LIMITER
(FR) LIMITEUR DE COURANT DE COURT-CIRCUIT
Abstract
(DE) Die Erfindung betrifft einen Kurzschlussstrombegrenzer, der einen Vakuumschalter (4) in einem Hauptstrompfad (12) und eine hierzu parallel geschaltete Strombegrenzungseinheit in einem Kommutierungsstrompfad aufweist. Der Vakuumschalter (4) weist Schaltkontakte (41, 42) auf, wobei das Material von Kontaktstücken (410, 420) der Schaltkontakte (41, 42) so gewählt ist, dass der Mittelwert des Abreißstroms mindestens 8 Ampere ist.
(EN) The invention relates to a short-circuit current limiter, comprising a vacuum switch (4) in a main current path (12) and a current limiting unit connected in parallel therewith in a commutation current path. The vacuum switch (4) comprises switching contacts (41, 42), wherein the material of the contact pieces (410, 420) of the switching contacts (41, 42) is selected such that the mean value of the chopping current is at least 8 ampere.
(FR) L'invention concerne un limiteur de courant de court-circuit, comprenant un interrupteur à vide (4) dans un trajet de courant principal (12) et une unité de limitation de courant connectée en parallèle avec celui-ci dans un trajet de courant de commutation. L'interrupteur à vide (4) comprend des contacts de commutation (41, 42), le matériau des pièces de contact (410, 420) des contacts de commutation (41, 42) étant sélectionné de telle sorte que la valeur moyenne du courant de découpage est supérieure ou égale à 8 ampères.
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