JPS6481620A - Overcurrent protector - Google Patents

Overcurrent protector

Info

Publication number
JPS6481620A
JPS6481620A JP62235160A JP23516087A JPS6481620A JP S6481620 A JPS6481620 A JP S6481620A JP 62235160 A JP62235160 A JP 62235160A JP 23516087 A JP23516087 A JP 23516087A JP S6481620 A JPS6481620 A JP S6481620A
Authority
JP
Japan
Prior art keywords
magnetic field
generating means
main switch
load
superconductor
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
JP62235160A
Other languages
Japanese (ja)
Inventor
Masamitsu Otsu
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP62235160A priority Critical patent/JPS6481620A/en
Publication of JPS6481620A publication Critical patent/JPS6481620A/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)
  • Containers, Films, And Cooling For Superconductive Devices (AREA)
  • Emergency Protection Circuit Devices (AREA)

Abstract

PURPOSE:To improve reliability, by inserting a superconductor between a power source and a load then applying a magnetic field higher than a critical field and making switching control of power supply/interruption thereby making the overcurrent interrupting section contactless. CONSTITUTION:A main switch 2 comprising a superconductor is inserted between a power source 6 and a load 7. A magnetic field generating means 1 for applying a magnetic field H1 higher than the critical field of the superconductor and a magnetic field generating means 3 for producing a cancelling field H2 are arranged near the main switch 2. Furthermore, switches 4, 5 for starting/ stopping the magnetic field generating means 3 are provided. Upon operation of the magnetic field generating means 3, the main switch 2 is brought into superconducting state and current flows through the load 7. Upon occurrence of abnormal load current, the main switch 2 is brought into normal conducting state thus enabling interruption of current.
JP62235160A 1987-09-18 1987-09-18 Overcurrent protector Pending JPS6481620A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62235160A JPS6481620A (en) 1987-09-18 1987-09-18 Overcurrent protector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62235160A JPS6481620A (en) 1987-09-18 1987-09-18 Overcurrent protector

Publications (1)

Publication Number Publication Date
JPS6481620A true JPS6481620A (en) 1989-03-27

Family

ID=16981940

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62235160A Pending JPS6481620A (en) 1987-09-18 1987-09-18 Overcurrent protector

Country Status (1)

Country Link
JP (1) JPS6481620A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5475560A (en) * 1991-06-03 1995-12-12 Kogyo Gijutsuin Current limiting device with a superconductor and a control coil

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5475560A (en) * 1991-06-03 1995-12-12 Kogyo Gijutsuin Current limiting device with a superconductor and a control coil

Similar Documents

Publication Publication Date Title
EP1104069A3 (en) Energy validation arrangement for a self-powered circuit breaker
ATE88295T1 (en) CIRCUIT BREAKER ARRANGEMENT FOR A VENDING MACHINE.
JPS6481620A (en) Overcurrent protector
GB1535633A (en) Method of testing a circuit breaker and a testing circuit for carrying out said method
ES454612A1 (en) Fault current protection switch
GB1478396A (en) Excess current switching device
JPS6412438A (en) Current limiting circuit-breaker
JPS57172833A (en) Current supply method for ac operated railway
JPS54113038A (en) Dc power supply circuit
RU95112939A (en) Transformer winding tap changing method
JPS5783A (en) Starting device at pumping-up type electric power station
GB1127658A (en) Switching devices for superconducting power cables
CA1061444A (en) Compressed gas filled circuit breaker
SU143080A1 (en) Transformer substation
SU726599A1 (en) Arcless switching ac contactor
JPS5495196A (en) Protective circuit of superconductive coil
JPS54129343A (en) Net work power receiving equipment
JPS57199024A (en) Static reactive power generator
JPS5746685A (en) Starter for rotary electric machine
JPS5471351A (en) Switchgear
JPS5472439A (en) Uniform-pressure underwater switchboard
JPS6439014A (en) On-load tap changer
JPS6431317A (en) Switchgear
JPS5518870A (en) Electric-brake circuit of generator
JPS649605A (en) Superconducting coil apparatus