Optimized device for protecting an electrical line, electrical system and aircraft
AssigneeAirbus Operations GmbH
InventorPatrick BAREAUD
Life of this patent
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Abstract
An optimized protection device configured to open a low-voltage electrical line in the event of an HVDC disturbance, while directing the potential occurrence of a secondary electric arc. Advantageously, it is thus possible to increase the safety of the systems by optimally isolating an electrical line in the event of HVDC disturbances above a predetermined magnitude.
Claims7
A device for opening an electrical line of an electrical circuit, said opening device comprising a central part of said electrical line, having a first predetermined section and two distal parts of said electrical line each having a second section larger than said first section (Se1) and respectively connected to said central part, the opening device wherein:
- each of said distal parts is connected to said central part via an electrical line intermediate part having a third section between the first section and one of the second sections to which it is adjacent,
- the portions of said electrical line, which are internal to said opening device, and where there are variations in section of the electrical line, between said central part and said intermediate parts, on the one hand, and between each of said intermediate parts and said adjacent distal part, on the other hand, have right or substantially right angles,
- an end surface of a second electrical line is arranged facing one of said intermediate parts and has right or substantially right angles, so as to create an electric arc initiation zone when said central part breaks by melting.
Dependencies are inferred from the claim text.