JPS6419643A - Current zero miss eliminating device - Google Patents

Current zero miss eliminating device

Info

Publication number
JPS6419643A
JPS6419643A JP62174649A JP17464987A JPS6419643A JP S6419643 A JPS6419643 A JP S6419643A JP 62174649 A JP62174649 A JP 62174649A JP 17464987 A JP17464987 A JP 17464987A JP S6419643 A JPS6419643 A JP S6419643A
Authority
JP
Japan
Prior art keywords
magnetic field
breaker
zero miss
superconductor
field generating
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
Application number
JP62174649A
Other languages
Japanese (ja)
Inventor
Masanori Tsukushi
Yukio Kurosawa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP62174649A priority Critical patent/JPS6419643A/en
Publication of JPS6419643A publication Critical patent/JPS6419643A/en
Pending legal-status Critical Current

Links

Classifications

    • 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

Landscapes

  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Emergency Protection Circuit Devices (AREA)

Abstract

PURPOSE:To enhance the operating reliability by forming a current zero miss eliminating device from a high temp. superconductor to be superconductive with liquid nitrogen, a parallel resistance, a magnetic field generating device to impress a magnetic field over the critical one on the high temp. superconductor, and a current zero miss sensing meas. CONSTITUTION:Existing invention is composed of a superconductor 1, parallel resistance 2, current zero miss sensing device 3, breaker operation command sensing device 4, and magnetic field generating device 5, and this system is incorporated into a power transmission system consisting of a generator 6, breaker 7, power transmission line 8, etc. When any accident occurs in the power transmission line 8 to generate zero miss phenomenon, the zero miss sensing device 3 senses it to send a corresponding signal to a control art 9 of the magnetic field generating device 5. When a break command is given to the breaker 7 of the breaker 7 of the system in which the zero miss phenomenon is generated, on the other hand, a corresponding signal is also sent to the same control device 9. When these two signals are identical, the magnetic field generating device 5 is driven to impress magnetic field onto the superconductor 1, which transfers into normal electroconductive and is given high resistance. The accident current is quickly transferred to the parallel resistance 2. This provides quick elimination of zero miss, wherein operation can be actuated even upon making sure the operation command to the breaker, that should well enhance the operating reliability.
JP62174649A 1987-07-15 1987-07-15 Current zero miss eliminating device Pending JPS6419643A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62174649A JPS6419643A (en) 1987-07-15 1987-07-15 Current zero miss eliminating device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62174649A JPS6419643A (en) 1987-07-15 1987-07-15 Current zero miss eliminating device

Publications (1)

Publication Number Publication Date
JPS6419643A true JPS6419643A (en) 1989-01-23

Family

ID=15982285

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62174649A Pending JPS6419643A (en) 1987-07-15 1987-07-15 Current zero miss eliminating device

Country Status (1)

Country Link
JP (1) JPS6419643A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6477424A (en) * 1987-09-17 1989-03-23 Mitsubishi Electric Corp Overcurrent protector

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6477424A (en) * 1987-09-17 1989-03-23 Mitsubishi Electric Corp Overcurrent protector

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