Protective and monitoring apparatus for a generator, and use of such a protective and monitoring apparatus
First Claim
1. 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.
3 Assignments
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Accused Products
Abstract
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.
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Citations
11 Claims
- 1. 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.
Specification