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

Abstract

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.

Inventors:
 [1]
  1. Los Alamos, NM
Publication Date:
Research Org.:
Los Alamos National Laboratory (LANL), Los Alamos, NM
OSTI Identifier:
865299
Patent Number(s):
US 4490769
Assignee:
United States of America as represented by United States (Washington, DC)
DOE Contract Number:  
W-7405-ENG-36
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
solid-state; circuit; breaker; current; limiting; characteristic; superconducting; coil; thyristor; bridge; interposes; source; load; series; connected; dc; biases; thyristors; permit; bidirectional; flow; therethrough; normal; operating; conditions; fault; condition; control; triggers; reduce; zero; cycles; thereafter; temporary; overload; limit; acceptable; level; thyristor bridge; series connected; superconducting coil; control circuit; operating conditions; circuit breaker; current flow; current limiting; operating condition; flow therethrough; normal operating; solid-state circuit; fault condition; dc source; acceptable level; current limit; /361/323/505/

Citation Formats

Boenig, Heinrich J. Solid-state circuit breaker with current limiting characteristic using a superconducting coil. United States: N. p., 1984. Web.
Boenig, Heinrich J. Solid-state circuit breaker with current limiting characteristic using a superconducting coil. United States.
Boenig, Heinrich J. Sun . "Solid-state circuit breaker with current limiting characteristic using a superconducting coil". United States. https://www.osti.gov/servlets/purl/865299.
@article{osti_865299,
title = {Solid-state circuit breaker with current limiting characteristic using a superconducting coil},
author = {Boenig, Heinrich J},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1984},
month = {1}
}

Patent:

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