JPS6426330A - Current limiter - Google Patents

Current limiter

Info

Publication number
JPS6426330A
JPS6426330A JP62181070A JP18107087A JPS6426330A JP S6426330 A JPS6426330 A JP S6426330A JP 62181070 A JP62181070 A JP 62181070A JP 18107087 A JP18107087 A JP 18107087A JP S6426330 A JPS6426330 A JP S6426330A
Authority
JP
Japan
Prior art keywords
temperature
superconductive material
controlled
accident
whereat
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
JP62181070A
Other languages
Japanese (ja)
Inventor
Goo Nohara
Masuo Goto
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 JP62181070A priority Critical patent/JPS6426330A/en
Publication of JPS6426330A publication Critical patent/JPS6426330A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
    • H02H9/02—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess current
    • H02H9/023—Current limitation using superconducting elements
    • 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

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Emergency Protection Circuit Devices (AREA)

Abstract

PURPOSE:To improve the degree of stabilization upon stationary operation and permit the restraint of an accidental current, by a method wherein a superconductive material is controlled usually at a temperature whereat the electric resistance thereof is nearly zero while the temperature is risen quickly upon accident. CONSTITUTION:A device NT, consisting of the principal element of a superconductive material N, is provided at the side of the bus of a breaker. The temperature of the superconductive material N in the device NT is controlled at a temperature, whereat the electric resistance thereof is nearly zero, at all times. A passing current 15 derived by a current transformer CT upon accident to detect it by a detecting unit C0 and when a detected value is higher than a given value, a valve V is controlled to send high-temperature steam H to the superconductive material N.
JP62181070A 1987-07-22 1987-07-22 Current limiter Pending JPS6426330A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62181070A JPS6426330A (en) 1987-07-22 1987-07-22 Current limiter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62181070A JPS6426330A (en) 1987-07-22 1987-07-22 Current limiter

Publications (1)

Publication Number Publication Date
JPS6426330A true JPS6426330A (en) 1989-01-27

Family

ID=16094275

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62181070A Pending JPS6426330A (en) 1987-07-22 1987-07-22 Current limiter

Country Status (1)

Country Link
JP (1) JPS6426330A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999053590A1 (en) * 1998-04-10 1999-10-21 Kyushu Electric Power Co., Inc. Direct grounding system capable of limiting ground fault current
JP2007236108A (en) * 2006-03-01 2007-09-13 Toshiba Corp Superconducting current limiting device and power system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999053590A1 (en) * 1998-04-10 1999-10-21 Kyushu Electric Power Co., Inc. Direct grounding system capable of limiting ground fault current
JP2007236108A (en) * 2006-03-01 2007-09-13 Toshiba Corp Superconducting current limiting device and power system

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