Patent ID: 6897749
Filing Date: 2005-05-24
Classification: H01F,H02J,Y10S

Abstract:
1. A superconducting magnetic energy storage (SMES) device comprising: first coil means made of superconducting material; cooling means for cooling the first coil means to superconducting temperatures; second coil means inductively coupled to the first coil means for inputting energy to, and/or outputting energy from, the first coil means; and switching means for switching the first coil means between a superconducting condition and a non-superconducting condition, wherein the first coil means is arranged as a closed loop electric circuit having no connecting means mechanically connected thereto for inputting or outputting energy thereto, and wherein the switching means comprises third coil means for application or removal of a magnetic field for switching the first coil means between its non-superconducting and superconducting conditions.