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1. (WO1980000115) ELECTROMAGNETIC CONTACTOR ARC CHUTE
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1980/000115 International Application No.: PCT/US1979/000408
Publication Date: 24.01.1980 International Filing Date: 13.06.1979
IPC:
H01H 9/34 (2006.01) ,H01H 33/59 (2006.01)
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
H
ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
9
Details of switching devices, not covered by groups H01H1/-H01H7/104
30
Means for extinguishing or preventing arc between current-carrying parts
34
Stationary parts for restricting or subdividing the arc, e.g. barrier plate
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
H
ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
33
High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
02
Details
59
Circuit arrangements not adapted to a particular application of the switch and not otherwise provided for, e.g. for ensuring operation of the switch at a predetermined point in the ac cycle
Applicants:
Inventors:
Priority Data:
91631716.06.1978US
Title (EN) ELECTROMAGNETIC CONTACTOR ARC CHUTE
(FR) BOITE DE SOUFFLAGE POUR CONTACTEUR ELECTROMAGNETIQUE
Abstract:
(EN) An arc chute (11) for a clapper-type electromagnetic D.C. contactor having a closed off top wall (24) with tapered and angled holes (32) therethrough directing jets of air, caused by the arc when the contact tips (14) separate, to the front of the arc chute (11) thereby preventing the arc from moving directly above the contactor and as a result decreasing overhead clearance between contactors and, further improving the upper limit on fault current interruptions.
(FR) Une boite de soufflage (11) pour un contacteur electromagnetique a courant continu du type a clapet comprend une paroi superieure de fermeture (24) ayant au travers des orifices coniques et faisant un angle (32) pour diriger des jets d"air provoques par l"arc lorsque les pointes des contacts (14) se separent, vers la partie avant de la boite de soufflage (11) de maniere a empecher l"arc de se deplacer directement au dessus du contacteur resultant en une diminution du jeu aerien entre les contacteurs et, de plus, ameliorant la limite superieure des coupures des courants de defaut.
Designated States:
Publication Language: English (EN)
Filing Language: English (EN)