The invention relates to a current supply arrangement, in particular a current supply arrangement for a reactor for producing polysilicon with the Siemens process, with a first current supply device (10), with a second power supply device (20) comprising at least two AC current regulators (22) and a voltage sequence controller (23) for controlling the AC current regulators (22), with a terminal group (30) comprising at least two terminals (31, 32, 33, 34, 35) for connecting at least one load (41,42,43,44), of which terminals a first terminal (31) is connected directly, i.e., without an interconnected switch, with an output terminal (24) of the second current supply device (20), and with a first switching means group (50) associated with the terminal group (30), with switching means for connecting and disconnecting the terminals (31, 32, 33, 34, 35) of the terminal group (30) with or from output terminals (15, 16,17,18, 19) of the first current supply device (10), wherein the current supply arrangement includes additional second current supply devices (20) having at least two AC current regulators (22) and a voltage sequence controller (23) for controlling the AC current regulators (22), additional terminal groups (30) comprising at least two terminals (31, 32, 33, 34, 35) for connecting at least one load (41,42,43,44), wherein of the terminals (31, 32, 33, 34, 35) of each terminal group (30) a first terminal (31) is connected directly, i.e., without an interconnected switch, with an output terminal (24) of one of the additional second current supply devices (20), and additional first switching means groups (50), each associated with a corresponding one of the additional terminal groups (30), with first switching means (51, 52, 53, 54, 55) for connecting and disconnecting the terminals (31, 32, 33, 34, 35) of the terminal group (30) with or from the output terminals (11, 12,13,14, 15) of the first current supply devices (10).
