Improvements in polyphasic control and protection equipment for electric circuits. (Machine-translation by Google Translate, not legally binding)

摘要

Improvements in polyphase control and protection equipment for electrical circuits, whose equipment is formed by circuit breakers, optionally coupled together so that, if a cut occurs in one of the phases of the polyphase line, the rest automatically jump, each of which circuit breakers includes : two contacts combined; a mechanism for opening and closing said contacts: an automatic triggering device to act on said mechanism, composed of a bimetal thermosensitive element; terminals for connecting the apparatus to an electric conduction circuit; a dielectric box depending on the frame that organizes all the elements of the apparatus, which is manipulated by an external handle; a coil on a solidary core that, when the current flows, generates a magnetic field which, upon reaching predetermined values, attracts a tilting armature, by means of a prolongation inferior to it, whose armature retains the end of a reset lever, which it releases the instantaneous tripping of the mechanism to abruptly interrupt the electrical circuit occurs; the set of circuit breakers being grouped and receiving an axis, preferably of polygonal section, transverse to all of them, which has its cylindrical ends, these being received in some internal fittings produced in the end caps of the assembly that acts as a bearing of said axis; whose circuit breakers are characterized; because the lever of the trigger mechanism has been provided with an appendix that will act on the cam and subsequent transmission to the remaining battery circuit breakers, further characterized by the autonomy of the housing provided for the coil located in the lower right corner of the assembly; by the prolongation of a solidary end to the armor; by the increase in the reaction capacity of the mobile contact arm and the extinction of the arc in the spark-off box and by the simplification of the lever of the firing mechanism by incorporating two appendages into one of its wings and a third in the opposite. (Machine-translation by Google Translate, not legally binding)