Solid-state circuit breaker with current limiting characteristic using a superconducting coil

Patent · Sat Dec 31 23:00:00 EST 1983

OSTI ID:865299

Boenig, Heinrich J ^[1]

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1. Los Alamos, NM

A thyristor bridge interposes an ac source and a load. A series connected DC source and superconducting coil within the bridge biases the thyristors thereof so as to permit bidirectional ac current flow therethrough under normal operating conditions. Upon a fault condition a control circuit triggers the thyristors so as to reduce ac current flow therethrough to zero in less than two cycles and to open the bridge thereafter. Upon a temporary overload condition the control circuit triggers the thyristors so as to limit ac current flow therethrough to an acceptable level.

• Research Organization: Los Alamos National Laboratory (LANL), Los Alamos, NM
• DOE Contract Number: W-7405-ENG-36
• Assignee: United States of America as represented by United States (Washington, DC)
• Patent Number(s): US 4490769
• OSTI ID: 865299
• Country of Publication: United States
• Language: English

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/361/323/505/
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current
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