SWITCHING DEVICE WITH AN ISOLATING OR EARTHING FUNCTION

• Main Authors: Reichert, Frank, Nikolic, Paul Gregor
• Format: Patent
• Language: English
• Published: 08.05.2025
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRIC SWITCHES; ELECTRICITY; EMERGENCY PROTECTIVE DEVICES; RELAYS; SELECTORS

A switching device has an isolating or earthing function. The switching device contains an encapsulation housing filled with an insulating gas, a first contact arrangement with a first main contact and a first arc contact, a second contact arrangement with a second main contact and a second arc contact, and a nozzle arrangement which is configured to subject a switching arc between the arc contacts to an insulating gas flow. The contact arrangements are moveable relative to one another between a first end position and a second end position. During the movement from the first end position to the second end position, the main contacts are isolated from one another upstream of the arc contacts and a switching arc between the arc contacts is quenched by subjecting the switching arc to an insulating gas flow.