JPS6423511A - Protective device of superconducting apparatus - Google Patents
Protective device of superconducting apparatusInfo
- Publication number
- JPS6423511A JPS6423511A JP62178961A JP17896187A JPS6423511A JP S6423511 A JPS6423511 A JP S6423511A JP 62178961 A JP62178961 A JP 62178961A JP 17896187 A JP17896187 A JP 17896187A JP S6423511 A JPS6423511 A JP S6423511A
- Authority
- JP
- Japan
- Prior art keywords
- sensors
- found
- superconducting apparatus
- gamma
- curves
- 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
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/001—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for superconducting apparatus, e.g. coils, lines, machines
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/60—Superconducting electric elements or equipment; Power systems integrating superconducting elements or equipment
Abstract
PURPOSE:To enhance the reliability by a method wherein a sensor to detect ultrasonic waves is installed at a tank which houses a superconducting apparatus so that a locally quenched part can be found to protect the superconducting apparatus. CONSTITUTION:If a superconducting apparatus has fallen into a quenched state, sensors 4 detect the cavitation of bubbles caused by the generation of heat. A point where the air bubble has been generated is estimated on the basis of a propagation duration. If more than three sensors 4 are used and a time difference DELTAt of two each of signals is found, a curve alpha whose difference in a distance from the two sensors becomes definite is decided. Similarly, other curves beta, gamma are obtained from the time difference between other sensors, the point where the air bubble has been generated can be found on the basis of these curves alpha, beta, gamma. All these calculations are processed inside a counter 6. Accordingly, the counter 6 is connected directly to an electronic computer or the like. Because a local quenching phenomenon of superconductivity can be detected and its position can be estimated, this device functions as a protective device of a high temperature and, in addition, a repair or the like can be executed quickly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62178961A JPS6423511A (en) | 1987-07-20 | 1987-07-20 | Protective device of superconducting apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62178961A JPS6423511A (en) | 1987-07-20 | 1987-07-20 | Protective device of superconducting apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6423511A true JPS6423511A (en) | 1989-01-26 |
Family
ID=16057687
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62178961A Pending JPS6423511A (en) | 1987-07-20 | 1987-07-20 | Protective device of superconducting apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6423511A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011115261A1 (en) * | 2010-03-18 | 2011-09-22 | 独立行政法人産業技術総合研究所 | Rubber product inspection method and rubber product inspection device |
-
1987
- 1987-07-20 JP JP62178961A patent/JPS6423511A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011115261A1 (en) * | 2010-03-18 | 2011-09-22 | 独立行政法人産業技術総合研究所 | Rubber product inspection method and rubber product inspection device |
| JP2011196799A (en) * | 2010-03-18 | 2011-10-06 | National Institute Of Advanced Industrial Science & Technology | Rubber product inspection method and rubber product inspection device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS53121675A (en) | Method and apparatus of measuring surface stress | |
| JPS5464941A (en) | Weight generator circuit | |
| JPS6423511A (en) | Protective device of superconducting apparatus | |
| JPS5353386A (en) | Time difference detection circuit | |
| JPS5734914A (en) | Detecting method for residue in resin molding machine | |
| JPS5750004A (en) | Fault compensation device for electronic circuit | |
| JPS51140779A (en) | Ultrasonic flaw detecting method | |
| JPS5381285A (en) | Leak detecting system | |
| JPS546436A (en) | Operation detector of electronic computer | |
| EP0357343A3 (en) | Method and apparatus for protecting electrical equipment | |
| JPS6449220A (en) | Heat treatment furnace | |
| JPS53112058A (en) | Semiconductor device and temperature characteristic measuring method of the same | |
| JPS5649956A (en) | Ae-monitoring device | |
| JPS53132244A (en) | Test and control unit for extendable microprogram | |
| JPS5315878A (en) | Leak tester | |
| JPS5242751A (en) | Device for detecting a position at which an abnormal state occurs in a n certain atomosphere | |
| JPS546594A (en) | Numerical value controlling ultrasonic flaw detecting system | |
| JPS5788362A (en) | Device and method for detection of stress relief cracking | |
| JPS5362089A (en) | Bus detecting device | |
| JPS57155851A (en) | Method and apparatus for ultrasonic wave reception | |
| JPS5537973A (en) | Sensor | |
| JPS5375741A (en) | Test equipment for data processing unit | |
| JPS57106965A (en) | Temperature alarm detection system of electronic equipment | |
| JPS5212887A (en) | Fluid leak detecting system | |
| GB2005027A (en) | Detecting cooling disturbances in nuclear reactor fuel elements |