JPS644085A - Circuit breaker - Google Patents
Circuit breakerInfo
- Publication number
- JPS644085A JPS644085A JP62157700A JP15770087A JPS644085A JP S644085 A JPS644085 A JP S644085A JP 62157700 A JP62157700 A JP 62157700A JP 15770087 A JP15770087 A JP 15770087A JP S644085 A JPS644085 A JP S644085A
- Authority
- JP
- Japan
- Prior art keywords
- normally
- magnetic field
- superconductor
- temperature superconductor
- coil
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Abstract
PURPOSE:To obtain an electrodeless circuit breaker which has a high lifetime and easy maintenance by arranging a superconductor between normally- conducting conductors, and electrically connecting them to form an electric current breaking section. CONSTITUTION:A title device is comprised of a high-temperature superconductor 2 which is arranged between and connected to normally-conducting conductors 1, a coil 4 for generating a strong magnetic field which is provided extanally of the superconductor 2, an exciting device for the coil 4, and a cooling medium loop 6 for the high-temperature superconductor 2. The electric current having flowed into one normally-conducting conductor 1 passes through the high- temperature superconductor 2 and flows out to the other normally-conducting conductor 1. At the time of electric current breaking, the exciting device 5 is rapidly operated to excite the coil 4 for generating a strong magnetic field in pulses and apply a stronger magnetic field than the critical magnetic field to the high-temperature superconductor 2 for quenching it, whereby the supercon ductor 2 is made to change to an electrically insulating substance to break the circuit current. A high lifetime is a chieved in this circuit breaker having no electrode, and the maintenance becomes extremely easy.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62157700A JPS644085A (en) | 1987-06-26 | 1987-06-26 | Circuit breaker |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62157700A JPS644085A (en) | 1987-06-26 | 1987-06-26 | Circuit breaker |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS644085A true JPS644085A (en) | 1989-01-09 |
Family
ID=15655465
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62157700A Pending JPS644085A (en) | 1987-06-26 | 1987-06-26 | Circuit breaker |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS644085A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013145933A1 (en) * | 2012-03-30 | 2013-10-03 | 株式会社 日立メディコ | Superconducting magnet device, superconducting coil protection method, and magnetic resonance imaging device |
-
1987
- 1987-06-26 JP JP62157700A patent/JPS644085A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013145933A1 (en) * | 2012-03-30 | 2013-10-03 | 株式会社 日立メディコ | Superconducting magnet device, superconducting coil protection method, and magnetic resonance imaging device |
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