Patent ID: 7538991
Filing Date: 2009-05-26
Classification: H01L,H02H,Y02E

Abstract:
1. A half wave expulsion (non-fault current limiting) type superconducting fault-current limiter comprising an integral high speed switch module, wherein the module comprises: a driving coil arranged on a current-dividing path connected in parallel to superconducting elements on a power supply path for generating an electronic repulsive force when an over-current divided by quench of superconducting elements is applied and then supplying the electronic repulsive force to inter-working means; a high speed switching contact point connected in series between the driving coil and a system, located on a rear terminal of the current dividing path, and integrally axially coupled to the inter-working means to allow a contact point contacting the switch to be opened by an electronic repulsive force supplied to the inter-working means; and an arc changeover switch arranged on a current limit path by being connected in parallel to the driving coil, and one side of which is integrally and axially coupled to the inter-working means, while being inter-worked in a moving direction and an opposite direction of the high speed switching contact point, and supplying the over-current to a current limit load connected in series to a rear terminal thereof through the contact point when the high speed switching contact point is opened as much as a predetermined interval.