Power capacitor unit for high pressure applications

• Main Authors: Bandalo, Felix, Baur, Matthias, Singh, Biswajit, Boehm, Moritz, Schlegel, Christoph, Donzel, Lise, Eriksson, Esbjorn, Lendenmann, Heinz
• Format: Patent
• Language: English
• Published: 07.06.2018
• Subjects: BASIC ELECTRIC ELEMENTS; CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES ORLIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE; ELECTRICITY

The present disclosure relates to power capacitor unit (1) for high-pressure applications. The power capacitor unit (1) comprises a housing (3), a plurality of capacitor elements (5-17, 23-35) connected to each other and arranged inside the housing (3), a dielectric liquid (L), a solid electrical insulation system arranged to electrically insulate each capacitor element (5-17, 23-35), a busbar, a plurality of fuse wires (5a-17a), each fuse wire having a first end connected to a respective capacitor element (5-17, 23-35) and a second end connected to the busbar (B), wherein the capacitor elements (5-17, 23-35), the solid electrical insulation system (41), and the fuse wires (5a-17a) are immersed in the dielectric liquid (L). Each fuse wire (5a-17a) has a plurality of first sections that are in physical contact with the electrical insulation system, and wherein each fuse wire (5a-17a) has a plurality of second sections without physical contact with the solid electrical insulation system.