Multi-spark gap

US12142897B2 · kind B2 · utility

Assignee

• PHOENIX CONTACT GMBH & CO. KG · DE

Inventors

• Thomas Meyer · Ottenstein, DE
• Rainer Durth · Niederheesten, DE

Key dates

• Filing date: Apr 26, 2023
• Grant date: Nov 12, 2024
• Expiry date: Apr 26, 2043

Classification

• Technology area (CPC H): Electricity
• CPC primary: H01T4/20
• WIPO field: Electrical machinery, apparatus, energy
• WIPO sector: Electrical engineering

Abstract

A multi-spark gap having both a high power-follow current extinguishing capacity as well as a relatively low protective level in which a distance x1 between a first electrode and an adjacent second electrode, which together form a first individual spark gap, is larger than respective distances x2 between other adjacent electrode pairs of additional individual spark gaps. The distance x1 is at least 0.5 mm and the distances x2 of the additional individual spark gaps are at most 0.2 mm. Additionally, an ignition aid for igniting the first individual spark gap is provided, which aid has at least a resistive ignition element and a voltage-limiting element, wherein the ignition element is connected to an electric-arc combustion chamber of the first individual spark gap and is electrically connected on the one side to the first electrode and on the other side via the voltage-limiting element to the second contact element.