Fault current limiting device

The embodiment of the invention provides a fault current limiting device and relates to the field of high-voltage electrical apparatuses. The operation loss can be reduced. According to the specific scheme, the fault current limiting device comprises k current limiting units, a fuse and two terminals, wherein k is greater than or equal to 1; the k current limiting units are connected in series and then connected with the fuse in parallel; the two terminals are led out from two ends of the fuse; and each current limiting unit comprises a current limiting impedor and a high-speed vacuum switch which are connected in parallel. The fault current limiting device is used for inhibiting short circuit current. 本发明的实施例提供种故障限流装置，涉及高压电器领域，能够降低运行损耗。具体方案包括：故障限流装置包括：K个限流单元、熔断器以及两个接线端，K≥1；所述K个限流单元串联后与所述熔断器并联，所述两个接线端由所述熔断器的两端引出；所述限流单元包括并联的限流电阻抗和快速真空开关。本发明用于抑制短路电流。