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8174803 |
System for creating a magnetic field via a superconducting magnet
The present invention relates to a system (100) for creating a magnetic field via a superconducting magnet (102) intended to produce said magnetic field. The system (100) according to the invention...
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8169756 |
Fault current limiting
An alternating current system 10 has a primary circuit 11 which forms a primary winding 18 on a core 16. A secondary winding 24 is connected with a current source 26 or, alternatively, with an...
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8154830 |
Apparatus for quench protection and stabilizing decay in a quasi-persistent superconducting magnet
A superconducting magnet assembly comprises a superconducting magnet which, under working conditions, generates a magnetic field in a working volume. The superconducting magnet is connected in...
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8150486 |
Superconducting device for current conditioning
The device has a quenchable superconductor (1), a first metallic member (2) electrically coupled with the quenchable superconductor (1), a second metallic member (3) electrically coupled to the...
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8142881 |
Mesh-type stabilizer for filamentary coated superconductors
A superconductor for mitigating the effects of local current disruptions in a superconducting filament. The superconductor comprises superconducting filaments covered by a medium in electrical...
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8138880 |
Persistent current switch
An improved persistent current switch design and method of operation are disclosed. By way of example, a persistent current switch circuit comprises a heating element and a switch element located...
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8134434 |
Superconducting quick switch
A magnet system for generating a magnetic field may include a superconducting magnet, a switch, and a heater element thermally coupled to the switch. The superconducting magnet is structured to...
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8112134 |
Superconducting current limiter device of the resistive type having a holding element
The superconducting current-limiting device contains at least one coil (61), the conductive track of which is formed from at least one band-shaped superconductor (17), where a holding element (2,...
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8107211 |
High temperature superconducting electromechanical system with frequency controlled commutation for rotor excitation
A system and method for generating a magnetic field in a rotating machine. In one embodiment, a primary winding assembly is configured to generate a rotatable magnetic field. The assembly is...
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8077438 |
Peak current limiting apparatus
The present disclosure is related to a peak current limiting apparatus of the present disclosure comprising a trigger element serially connected between a power supply source and the load,...
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8037695 |
Fault current limiter
A fault current limiter comprising: an input node; an output node; a variable impedance element coupled between the input node and the output node; a closed loop cryocooler circuit, comprising a...
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8035933 |
Structure of persistent current switch and that of control method
Disclosed is the structure of a persistent current switch and a control method for the same. In the switch structure, a portion of a superconducting wire to be used as a switch is formed with slits...
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8027139 |
System and method for superconducting magnet ramp-down
A system for ramping-down a superconducting magnet includes an electrically conductive lead connectable to a superconducting magnet and a plurality of diode assemblies arranged in series and...
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8004801 |
Apparatus for decreasing inrush current using SFCL and method for deciding optimal insertion resistance
There is provided an apparatus for decreasing an inrush current which comprises a power system including a transformer, and a superconducting fault current limiter electrically connected to the...
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7996053 |
Quench-controlled high temperature superconductor
The present invention relates to a quench controlled high temperature superconductor component wherein at least one depression is provided in a surface of the component resulting in a reduced wall...
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7995312 |
Electric fault current limiter having superconducting elements inside a cryogenic vessel and bushings for connecting an external circuit
Electric fault current limiter has superconducting elements inside a cryogenic vessel and bushings for connecting an external circuit. The electric fault current limiter (1) includes a cryogenic...
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7990661 |
Active shield superconducting electromagnet apparatus and magnetic resonance imaging system
The active shield superconducting electromagnet apparatus includes: a main switching circuit in which first and second main coils, first and second shield coils, and a first superconducting...
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7990662 |
Systems, methods, and apparatus for superconducting magnetic shielding
A localized area is at least partially contained within a perimeter of a shield ring formed by a closed superconducting current path of a material that is superconductive below a critical...
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7969695 |
Superconducting magnetic coil with a quench protection circuit, and MRT apparatus embodying same
A superconductive magnetic coil arrangement has a superconducting magnetic coil and a circuit for quench protection. The quench protection circuit includes at least one diode connected in parallel...
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7898778 |
Superconducting coil quench detection method and device, and superconducting power storage unit
A superconducting coil quench detection method and device capable of detecting a quench detection voltage even in a superconducting coil where a plurality of element coils are connected with a...
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7800871 |
Resistive high temperature superconductor fault current limiter
The present invention relates to a resistive type high temperature superconductor based fault current limiter with improved heat exchange capability composed of a thermally conductive matrix...
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7760067 |
Resistive current limiter
According to a first aspect the present invention relates to a fault current limiter formed by a conductor tape (11, 41, 51, 61, 71) coated with a high temperature superconductor and having at...
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7743485 |
Method of manufacturing a superconducting cable
Provided is a superconducting cable having a structure such that cable cores, each having a superconducting layer, are housed in a thermal insulation pipe and the superconducting layer of each...
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7742264 |
Hybrid-type superconducting fault current limiter
Disclosed is provided a hybrid-type superconducting fault current limiter for rapidly limiting a fault current, the fault current limiter having a first circuit and a second circuit which are...
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7724482 |
Parallel HTS transformer device
A superconducting transformer system is configured to be included within a utility power grid having a known fault current level. The superconducting transformer system includes a...
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7724483 |
Systems and methods involving protection of superconducting generators for power applications
A system for protecting superconducting generator field coils including a controller configured to monitor for a quenching of a superconducting field coil of a generator and control a dissipation...
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7710692 |
Superconductor component with improved electrical contact
The present invention is directed to a superconductor component 1 suitable as fault current limiter comprising a superconductor body 2 provided with a shunt coil 3 and an electrical contact 4 on at...
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7706110 |
Compact superconducting current limiting component in coil configuration with low inductance
The present invention is directed to a superconducting current limiting component, particularly to a ceramic high temperature superconducting current limiting component which is self triggering,...
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7701677 |
Inductive quench for magnet protection
A coil system for inductively heating a superconducting magnet in order to provide an internal energy dump by uniformly quenching a high performance superconducting magnet. The quench-inducing...
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7692911 |
Arrangement for protection of electronic components
In devices for producing strong current high power impulses, the electronic components, which include passive components including capacitors and/or switch elements, including semi-conductor...
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7679867 |
Magnetic flux-coupling type superconducting fault current limiter
A magnetic flux coupling-type superconducting current limiter is capable of protecting lines more effectively by winding reactors of a primary coil and a secondary coil in series in the structure...
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7675719 |
Current limiting module and hybrid current limiter using different kinds of superconducting wires
The present invention provides a current limiting module and a hybrid current limiter using different kinds of superconducting wires. The current limiting module includes a first superconducting...
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7649720 |
Quench protection of HTS superconducting magnets
A method of constructing a superconducting coil. The method includes embedding a plurality of heater elements throughout a superconducting coil. The heater elements are positioned according to a...
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7649721 |
Fault current limiting
An alternating current system 10 has a primary circuit 11 which forms a primary winding 18 on a core 16. A secondary winding 24 is connected with a current source 26 or, alternatively, with an...
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7646571 |
Circuit for effective quench heating in superconducting magnets
An assembly comprising a number of superconductive coils, at least one quench heater arranged to heat the superconductive coil(s) in the event that at least part of at least one of the coils enters...
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7630179 |
Protective link for superconducting coil
A superconducting coil system includes a superconducting coil and a protective link of superconducting material coupled to the superconducting coil. A rotating machine includes first and second...
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7602269 |
Permanent current switch
There is disclosed a permanent current switch which has a high temperature margin and which is thermally stable and which securely performs a switching operation between a superconducting state and...
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7589941 |
Fault current limiter having superconducting bypass reactor for simultaneous quenching
A fault current limiter comprises a pancake type current limiting module, comprising at least two pancake type bifilar winding modules stacked and connected to each other in series, each of the...
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7586717 |
Electrical device for current conditioning
An electrical device for current conditioning has a primary spool, a secondary spool which has a quenchable superconductor exhibiting a transition from a low resistive state to a high resistive...
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7586396 |
Superconducting resistive current limiter with a shunt
A resistive current limiter with at least one tubular high temperature superconductor body is disclosed provided with a shunt of a normal conducting material wound in coil configuration around the...
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7554779 |
Distributed power supply circuit
A distributed power supply circuit supplying common power to multiple packages in an apparatus so that a primary voltage of the common power is converted into a secondary voltage in a voltage...
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7551410 |
Superconductor current limiting system and method
A fault current limiter for limiting current faults in an electrical network comprising: a series of phase coils located adjacent a superconductive coil for fault current limiting phase faults...
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7545611 |
Electric power circuit protecting apparatus using superconductor
An electric power circuit protecting apparatus using a superconductor in an electric power system needing re-closing within a predetermined time from fault current blocking, comprising a main...
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7538991 |
Half wave expulsion (non-fault current limiting) type superconducting fault current limiter having integral high speed switch module
Disclosed is a half-wave expulsion type superconducting fault-current limiter having an integral high speed switch module. The fault-current limiter has minimum superconducting elements and a...
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7532443 |
Current-limiting device having a superconductive switching element
An electrical current limiting device has a superconductive switching element. Unlike prior art superconductive current limiters whose switching mechanism is based on a quenching of the switching...
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7492556 |
Quench protection circuit for a superconducting magnet
A quench protection circuit for a superconducting magnet, comprises at least one heater associated with a corresponding coil of the superconducting magnet. The at least one heater is arranged to be...
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7477492 |
Superconducting magnet system
A superconducting magnet system comprising a superconducting magnet, itself comprising a plurality of magnet coils, arranged to protect quench heaters yet provide effective quench protection.
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7474515 |
Cryogenic magnet control system
A cryogenic magnet control system has a number of magnet coils each formed by superconductive material wound on a former and a supply for energizing the magnet coils to generate an operational...
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7444826 |
Fault current limiter
A fault current limiter comprising: an input node; an output node; a variable impedance element coupled between the input node and the output node; a multi-cycle refrigeration system, comprising a...
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7440244 |
Self-triggering superconducting fault current limiter
A modular and scaleable Matrix Fault Current Limiter (MFCL) that functions as a “variable impedance” device in an electric power network, using components made of superconducting and non...
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