Switching device for a single-phase or multiphase electrical consumer

US11425835B2 · kind B2 · utility

Assignee

• Siemens Aktiengesellschaft · DE

Inventors

• Peter Kaesbauer · Schwandorf, DE
• Johannes Engelmann · Amberg, DE

Key dates

• Filing date: Feb 27, 2020
• Grant date: Aug 23, 2022
• Expiry date: Jan 22, 2041

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02B70/10
• WIPO field: Electrical machinery, apparatus, energy
• WIPO sector: Electrical engineering

Abstract

A switching device includes a number of line sections corresponding to a number of phases, each including a first and a second connection part, for connection to a connection phase of an electrical consumer. At least one controllable semiconductor switching element is provided per phase, wired between the first and second connection part. A bypass unit includes one controllable electromechanical switching element with a low on-resistance per phase. The controllable electromechanical switching element is wired, in parallel with the controllable semiconductor switching element of this phase, between the first and second connection part. The first and second connection part of a respective phase are arranged adjacently on one side of the power module in spatial proximity in a direction of extent. A contact bridge, assigned to a respective phase, runs in the direction of extent in order to electrically connect the first and second connection part in the switched-on state.