Invention Grant
US08111496B2 Earthing arrangement for a DC electrical system and a method of operating an earthing arrangement for a DC electrical system 有权
用于直流电系统的接地装置和用于DC电气系统的接地装置的操作方法

Earthing arrangement for a DC electrical system and a method of operating an earthing arrangement for a DC electrical system
Abstract:
An earthing arrangement for a DC electrical system (10), the electrical system (10) comprises a plurality of earthing points (24A, 24B, 24C) and each earthing point (24A, 24B, 24C) is directly and permanently connected to earth (26) by a high impedance connection (28A, 28B, 28C). Each earthing point (24A, 24B, 24C) is selectively connectable to earth (26) in electrical parallel with the high impedance connection (28A, 28B, 28C) by a solid connection (30A, 30B, 30C) and a switch (32A, 32B, 32C). In first mode of operation the switch (32A) between the earthing point (24A) and the earth (26) of only one of the plurality of earthing points (24A, 24B, 24C) is closed.
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