METHOD OF PERFORMING A CIRCUIT-BREAKING AND CLOSING OPERATION
A method of performing a circuit-breaking and closing operation in a three-phase system having a first phase, a second phase lagging the first phase by 120°, and a third phase lagging the first phase by 240°, wherein the method comprises: a) opening only one of the first phase, the second phase and...
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Main Authors | , , |
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Format | Patent |
Language | English French German |
Published |
30.09.2020
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Subjects | |
Online Access | Get full text |
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Summary: | A method of performing a circuit-breaking and closing operation in a three-phase system having a first phase, a second phase lagging the first phase by 120°, and a third phase lagging the first phase by 240°, wherein the method comprises: a) opening only one of the first phase, the second phase and the third phase before a zero crossing of a current of the corresponding phase, b) opening the remaining phases of the first phase, the second phase and the third phase after step a), and c) closing the first phase, the second phase and the third phase simultaneously or essentially simultaneously at a phase to ground voltage of the phase of the first phase, the second phase and the third phase which lagging the phase that was opened in step a) by 120° in a time range from 60° before a peak of said phase to 90° after the peak. |
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Bibliography: | Application Number: EP20190166240 |