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Showing 1 to 5 of 5 for “"Leistungsschalter"”.
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Modellierung des Plasmas im Vakuum-Leistungsschalter unter Berücksichtigung axialer Magnetfelder
The main task of vacuum circuit breakers is the switching of short circuit currents, which can reach values of about 50 kA in medium voltage systems. In the medium voltage area the vacuum technique is the dominant switching principle and is mostly used worldwide whereas the market share amounts 60 …
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Vergleich von Strahlungs- und Turbulenzmodellen zur Modellierung von Lichtbögen in SF -6-Selbstblasleistungsschaltern
High voltage circuit breakers are important elements in the transfer of energy between the power plant and the consumer. Circuit breakers of the third generation, so-called SF6-selfblast-circuit-breakers, use the energy set free by the switching arc in case of a fault to build up the pressure …
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Untersuchungen zur Hochfrequenzkonditionierung von Vakuumschaltkammern
The vacuum switching technology is preferred used in the medium voltage level due to its high reliability, the high number of switching operations, its free-maintenance as well as its long term durability. Contrary to gas-insulated switches, the contact surface of a vacuum circuit breaker has a …
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Modellierung des typspezifischen Störungsaufkommens von Hochspannungs-Schaltgeräten
Increasing cost pressure due to regulatory guidelines, changing topology of electrical power generation as well as ageing of equipment and very volatile load flows are the main challenges for transmission and distribution system operators. Minimizing the total cost and providing a high security of …
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Widerstandsverteilung in Schaltlichtbögen von Selbstblasleistungsschaltern während der Stromnulldurchgangsphase
SF6 self-blast circuit breakers are widely used as switching elements in electrical power systems. In case of a short-circuit fault the breaker contacts are separated leading to an ignition of an electric arc. Hence, the current flow is carried by the electric arc itself. Due to a cooling of the …