HIGH SPEED CIRCUIT BREAKER COMPRISING A MOVABLE MAGNETIC SHIM IN AN AIR GAP OF A MAGNETIC CIRCUIT

A circuit breaker comprising:- a chassis, a first contact (14), and a second contact (16),- an actuator mechanism (18) movable between a closed position, and a tripped position,- a tripping system (22) comprising a magnetic circuit (44) surrounding the first contact and delimiting a first air-gap, a...

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Bibliographic Details
Main Authors GAVID, Aurel, BATISTA, Emmanuel, VERNIER, Jean-Pierre, QUENTIN, Nicolas
Format Patent
LanguageEnglish
French
German
Published 11.06.2025
Subjects
BASIC ELECTRIC ELEMENTS
ELECTRIC SWITCHES
ELECTRICITY
EMERGENCY PROTECTIVE DEVICES
RELAYS
SELECTORS
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Summary:A circuit breaker comprising:- a chassis, a first contact (14), and a second contact (16),- an actuator mechanism (18) movable between a closed position, and a tripped position,- a tripping system (22) comprising a magnetic circuit (44) surrounding the first contact and delimiting a first air-gap, and a core (46) at least partly located in the first air gap and subject to a magnetic force (F2), the tripping system being adapted for preventing the actuator mechanism from switching from the closed position to the tripped position as long a current in the contacts does not exceed a threshold,- a setting system (24) for setting the threshold.The magnetic circuit defines a second air-gap, the setting system comprising a magnetic shim (64) movable with respect to the magnetic circuit between a plurality of positions in which the shim is at least partly located in the second air-gap.
Bibliography:Application Number: EP20230307137