Superconducting device having a cryogenic system and a superconducting switch

US7383688B2 · kind B2 · utility

Assignee

• Siemens Aktiengesellschaft · DE

Inventor

• Peter van Hasselt · Erlangen, DE

Key dates

• Filing date: Dec 1, 2005
• Grant date: Jun 10, 2008
• Expiry date: Nov 28, 2026

Classification

• Technology area (CPC H): Electricity
• CPC primary: H10N60/355
• WIPO field: Basic communication processes
• WIPO sector: Electrical engineering

Abstract

The superconducting device has a cryogenic system to whose first refrigerant there is thermally coupled a superconducting unit and a superconducting switching path, which is electrically connected to said unit and is to be activated thermally by a heater, of a superconducting switch. A first pipeline to whose end the superconducting switching path is thermally coupled is to be connected to a refrigerant space of the superconducting unit. In order to ensure reliable heating of the switching path upon activation of the heater, the first pipeline is to have a cross sectional constriction impeding the exchange of heat with the refrigerant space. Moreover, the switching path is to be thermally coupled to a comparatively higher temperature level via a further, closed pipeline with a second refrigerant.