Calculation of a Valve Magnetic System of Maximum Current Release of a Circuit Breaker
Circuit breakers are one of the most widespread electrical devices in control and distribution systems that use electric energy fluxes, providing protection from short circuits and current overloads. First and foremost, circuit breakers should provide a high operation speed at shutdown, which can be...
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| Veröffentlicht in: | Russian electrical engineering 2018-08, Vol.89 (8), p.459-463 |
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| container_title | Russian electrical engineering |
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| creator | Zaitsev, N. Yu Petrov, V. N. Svintsov, G. P. Sorokin, N. N. |
| description | Circuit breakers are one of the most widespread electrical devices in control and distribution systems that use electric energy fluxes, providing protection from short circuits and current overloads. First and foremost, circuit breakers should provide a high operation speed at shutdown, which can be achieved with low weight and significant electromagnetic forces. For approximate determination of magnetic system dimensions, network analysis methods are used. In addition, the model of magnetic field structure can be substantially simplified. The conductivity of air gaps between the ferromagnetic elements of a magnetic system can be described by a modified method of probable paths of magnetic flux, and the resistance of ferromagnetic elements (magnetic potential drop) is taken into account by means of a mathematically expressed magnetization curve (for steel of 10895 grade). |
| doi_str_mv | 10.3103/S1068371218080114 |
| format | Article |
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| ispartof | Russian electrical engineering, 2018-08, Vol.89 (8), p.459-463 |
| issn | 1068-3712 1934-8010 |
| language | eng |
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| source | SpringerNature Journals |
| subjects | Air gaps Approximation Circuit breakers Circuit protection Circuits Electrical resistivity Electromagnetic forces Engineering Ferromagnetism Machines Magnetic fields Magnetic flux Magnetization curves Manufacturing Network analysis Processes Short circuits Shutdowns Voltage drop Weight |
| title | Calculation of a Valve Magnetic System of Maximum Current Release of a Circuit Breaker |
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