CURRENT LIMITING DEVICE AS WELL AS A HIGH VOLTAGE DIRECT CURRENT ARRANGEMENT AND HIGH VOLTAGE POWER SYSTEM COMPRISING SUCH A CURRENT LIMITING DEVICE

摘要

The invention concerns a current limiting device (41) for a high voltage equipment (20) in a high voltage direct current power system, where the equipment comprises a disconnector operable to obtain a mechanical separation from a power line conductor (44) of the system. The invention also concerns a high voltage direct current arrangement and a high voltage power system comprising such a current limiting device (41). The current limiting device (41) comprises a first current limiting circuit (42) for connection between the power line conductor (44) and a first connection terminal (Ti) of the equipment (20) and the first current limiting circuit (42) is operable to reduce alternating currents in the frequency range of 70-200 kHz.