Device and method for protection from an electric arc
AssigneeSchneider Electric Industries SAS
InventorMarc Rival
Life of this patent
Estimating the term…
Abstract
A device for protection against an electric arc in an electric installation comprising: at least one detection apparatus of the electric arc, at least one short-circuiter establishing a short-circuit for extinction of the electric arc, an electronic control unit of the short-circuiter commanding to an established state of said short-circuit in case of detection of the electric arc by the detection apparatus, and a switchgear apparatus for interrupting said short-circuit at the end of a predefined short-circuit time delay as from the time this short-circuit is established.
Claims16
1-14. (canceled)
A protection device against an electric arc in an electric installation, comprising:
- at least one detection apparatus configured for detecting said electric arc,
- a first short-circuiter configured for establishing a first short-circuit for extinction of said electric arc when the at least one detection apparatus perform an initial detection of said electric arc,
- a switchgear apparatus configured for interrupting said first short-circuit at the end of a first time delay running from establishment of said first short-circuit by the first short-circuiter,
- a circuit breaker configured for electrically isolating said electric installation from an electric power source of said electric installation when the at least one detection apparatus detects said electric arc after a second time delay running from initial detection of said electric arc, the second time delay being longer than the first time delay.
A protection method against an electric arc in an electric installation, comprising:
- a) detecting the electric arc,
- b) establishing a first short-circuit for extinction of the electric arc,
- c) interrupting said short-circuit at the end of a first time delay running from the moment the first short-circuit was established.
Dependencies are inferred from the claim text.