2. General
2.1 Historical overview
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The Leyden bottle (1745) was the first electrical energy storage capacitor. It was used in numerous physics experiments in the 18th and 19th centuries.
Capacitors were only used industrially to improve power factor around 1920. These devices, installed on networks, are single-tank units with a reactive power of around 500 to 1,000 kvar. Their dielectric consists of sheets of paper impregnated with mineral oil.
In France, this technique continued until the early 1950s. At that time, single-tank units were replaced by single-phase capacitor banks using all-paper technology impregnated with mineral oil. The electric field is 12 V/µm,...
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General
Capacitor design and manufacture
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