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AssigneeALSTOM Technology Ltd
InventorsMax Hobelsberger, Ingo Kirchhofff, René Kohler, Zlatimir Posedel
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A protective and monitoring apparatus (20, 23) for monitoring and reducing shaft currents and shaft voltages on the generator shaft (19) of a generator (16) which produces electrical power, which protective and monitoring device (20, 23) is connected between a contact apparatus (21, 24), which makes contact with the generator shaft (19), and a grounding connection (22, 25) and comprises a parallel circuit formed by a resistance and a capacitance, with one end of the parallel circuit (26, 27) being connected to the contact apparatus (21, 24) and its other end being connected to the grounding connection (22, 25), said parallel circuit being protected against overvoltages on the generator shaft (19) and means (31) being provided for bridging the parallel circuit (26, 27) when an overvoltage occurs.
A protective and monitoring apparatus for monitoring and reducing shaft currents and shaft voltages on the generator shaft of a generator which produces electrical power, which protective and monitoring device is connected between a contact apparatus, which makes contact with the generator shaft, and a grounding connection and comprises a parallel circuit formed by a resistance and a capacitance, with one end of the parallel circuit being connected to the contact apparatus and its other end being connected to the grounding connection, wherein means are provided for bridging the parallel circuit when an overvoltage occurs.
Dependencies are inferred from the claim text.