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Hybrid switches for low-voltage DC grids
Hybrid switches for low-voltage DC grids

... disconnection. Afterwards the IGBT also remains in the defined activated condition for 1.5 ms. As expected there is a vital change compared to the resistive behaviour with regard to the disconnection. After disruption of the current, external circuitry induces an attenuated voltage oscillation. Over ...
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Lab 4: Supply Independent Current Source Design
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Three-phase electric power



Three-phase electric power is a common method of alternating-current electric power generation, transmission, and distribution. It is a type of polyphase system and is the most common method used by electrical grids worldwide to transfer power. It is also used to power large motors and other heavy loads. A three-phase system is usually more economical than an equivalent single-phase or two-phase system at the same line to ground voltage because it uses less conductor material to transmit electrical power.The three-phase system was independently invented by Galileo Ferraris, Mikhail Dolivo-Dobrovolsky, Jonas Wenström and Nikola Tesla in the late 1880s.
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