Dispositif disjoncteur hybride
AssigneeSociete Techique Pour l'Energie Atomique Technicatome
InventorsPierre Sellier, Ronan Besrest, Claudio Zimmermann
Life of this patent
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Abstract
This invention relates to a circuit breaker device comprising a main branch (1) comprising a mechanical switch element (2) and an auxiliary branch (3) containing a semiconductor breaking cell (4), this auxiliary branch (3) being mounted in parallel with the main branch (1). The main branch (1) comprises a serial switching assistance module (M2) in series with the mechanical switch element (2), comprising a semiconductor breaking cell (5) controllable in opening in parallel with an impedance (Z1). The auxiliary branch (3) comprises a parallel switching assistance module (M4) comprising an impedance (Z2), this impedance (Z2) including at least one capacitor type element (C).
Claims15
Circuit breaker device comprising a main branch (1) comprising a mechanical switch element (2) and an auxiliary branch (3) containing a semiconductor breaking cell (4), this auxiliary branch (3) being mounted in parallel with the main branch (1), characterised in that the main branch (1) comprises, in series with the mechanical switch element (2), a serial switching assistance module (M2) comprising a semiconductor breaking cell (5) controllable in opening in parallel with an impedance (Z1) and in that the auxiliary branch (3) comprises a parallel switching assistance module (M4) comprising an impedance (Z2), this impedance (Z2) including at least one capacitor type element (C).
Method for triggering a circuit breaker device according to any one of the above claims, characterised in that it consists of the following, when there is an overcurrent in the main branch (1):
- switching the semiconductor breaking cell (5) controllable in opening, from a conducting state to a non-conducting state,
- switching the semiconductor breaking cell (4) in the auxiliary branch (3), from a non-conducting state to a conducting state,
- then opening the mechanical switch element (2) that was initially closed,
- and finally switching the semiconductor breaking cell (4) in the auxiliary branch (3) from the conducting state to the non-conducting state as soon as the current becomes zero.
Dependencies are inferred from the claim text.