发明名称 |
SUPERCONDUCTING COIL PROTECTIVE SYSTEM |
摘要 |
A superconducting coil protective system comprises a quenching detector (QD) for detecting occurrence of a quenching in a superconducting coil (L) and generating a quenching signal indicative of the occurrence of the quenching. In response to the quenching signal, a voltage controller (VC) reduces an output voltage from a power source (PS) to zero or to a negative polarity. A current interrupter (CI) including a circuit breaker (CB) or a fuse (F) is connected in parallel to the superconducting coil (L) for allowing a first commutation of a current from the superconducting coil (L) to the current interrupter (CI) upon the reduction of the output voltage from the power source (PS). The system also comprises a protective resistor (RD) connected in parallel to the current interrupter (CI) for allowing a second commutation of the first-commutated current thereto upon the opening of the current interrupter (CI), whereby energy of the second-commutated current is dissipated in the protective resistor. A protective method for the superconducting coil utilizing the above system is also disclosed.
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申请公布号 |
US5210674(A) |
申请公布日期 |
1993.05.11 |
申请号 |
US19910707326 |
申请日期 |
1991.05.29 |
申请人 |
MITSUBISHI DENKI KABUSHIKI KAISHA |
发明人 |
YAMAGUCHI, SATAROU;TSUKAMOTO, TADANORI |
分类号 |
H02H7/00 |
主分类号 |
H02H7/00 |
代理机构 |
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代理人 |
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地址 |
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