Current-limiting unit for an AC device, and use of the unit in a power transmission system
In order to reduce the energy losses, at least two saturable inductor devices (12, 13) are provided in the current-limiting unit for each phase of the AC device. Each inductor device has an AC winding (10A, 10B, 10C; 11A, 11B, 11C) and a superconductive DC premagnetising winding (20, 36) which satur...
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| creator | TREVOR CARLISLE BARTRAM ANTHONY DEREK APPLETON KENNETH CHARLES PARTON |
| description | In order to reduce the energy losses, at least two saturable inductor devices (12, 13) are provided in the current-limiting unit for each phase of the AC device. Each inductor device has an AC winding (10A, 10B, 10C; 11A, 11B, 11C) and a superconductive DC premagnetising winding (20, 36) which saturates the inductor core (12A; 12B; 12C; 13A; 13B; 13C) in such a manner that the latter remains saturated even when the AC device is on full load. The AC windings (10A, 10B, 10C; 11A, 11B, 11C) act per phase such that, at full load, a change in the saturation level in one of the inductor cores (12A; 12B; 12C; 13A; 13B; 13C) with respect to the saturation level produced just by the premagnetising winding (20, 36) is associated with an opposing change in the saturation level in the other inductor core (12A; 12B; 12C; 13A; 13B; 13C) of the same phase. The current limiting takes place when, in each half-cycle, one or other of the inductor cores (12A; 12B; 12C; 13A; 13B; 13C) is forced out of its saturation state. The unit is particularly suitable for power transmission between two power AC devices. |
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Each inductor device has an AC winding (10A, 10B, 10C; 11A, 11B, 11C) and a superconductive DC premagnetising winding (20, 36) which saturates the inductor core (12A; 12B; 12C; 13A; 13B; 13C) in such a manner that the latter remains saturated even when the AC device is on full load. The AC windings (10A, 10B, 10C; 11A, 11B, 11C) act per phase such that, at full load, a change in the saturation level in one of the inductor cores (12A; 12B; 12C; 13A; 13B; 13C) with respect to the saturation level produced just by the premagnetising winding (20, 36) is associated with an opposing change in the saturation level in the other inductor core (12A; 12B; 12C; 13A; 13B; 13C) of the same phase. The current limiting takes place when, in each half-cycle, one or other of the inductor cores (12A; 12B; 12C; 13A; 13B; 13C) is forced out of its saturation state. 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Each inductor device has an AC winding (10A, 10B, 10C; 11A, 11B, 11C) and a superconductive DC premagnetising winding (20, 36) which saturates the inductor core (12A; 12B; 12C; 13A; 13B; 13C) in such a manner that the latter remains saturated even when the AC device is on full load. The AC windings (10A, 10B, 10C; 11A, 11B, 11C) act per phase such that, at full load, a change in the saturation level in one of the inductor cores (12A; 12B; 12C; 13A; 13B; 13C) with respect to the saturation level produced just by the premagnetising winding (20, 36) is associated with an opposing change in the saturation level in the other inductor core (12A; 12B; 12C; 13A; 13B; 13C) of the same phase. The current limiting takes place when, in each half-cycle, one or other of the inductor cores (12A; 12B; 12C; 13A; 13B; 13C) is forced out of its saturation state. 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Each inductor device has an AC winding (10A, 10B, 10C; 11A, 11B, 11C) and a superconductive DC premagnetising winding (20, 36) which saturates the inductor core (12A; 12B; 12C; 13A; 13B; 13C) in such a manner that the latter remains saturated even when the AC device is on full load. The AC windings (10A, 10B, 10C; 11A, 11B, 11C) act per phase such that, at full load, a change in the saturation level in one of the inductor cores (12A; 12B; 12C; 13A; 13B; 13C) with respect to the saturation level produced just by the premagnetising winding (20, 36) is associated with an opposing change in the saturation level in the other inductor core (12A; 12B; 12C; 13A; 13B; 13C) of the same phase. The current limiting takes place when, in each half-cycle, one or other of the inductor cores (12A; 12B; 12C; 13A; 13B; 13C) is forced out of its saturation state. The unit is particularly suitable for power transmission between two power AC devices.</abstract><oa>free_for_read</oa></addata></record> |
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| language | eng ; ger |
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| subjects | BASIC ELECTRIC ELEMENTS CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER CONTROLLING CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS GENERATION INDUCTANCES MAGNETS PHYSICS REGULATING SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES SYSTEMS FOR STORING ELECTRIC ENERGY TRANSFORMERS |
| title | Current-limiting unit for an AC device, and use of the unit in a power transmission system |
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