Novel bridge type high temperature superconducting fault current limiter
A fault current limiter and high-temperature superconducting technology, which is applied in the usage of superconductor elements, circuit devices, emergency protection circuit devices, etc., to achieve the effect of improving the effect of current limiting, fast reclosing performance, and avoiding the effect of limiting ability
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[0011] see figure 2 , figure 2 It is the schematic diagram of the present invention. The superconducting inductance of the present invention, load switch and bias power etc. are connected on the electric bridge successively, a load switch FOLS1 and current-limiting resistor R 2 After series connection, one end is connected to bias power U b The positive polarity end, the other end is connected to the connection point of the load switch FOLS2 and the superconducting inductance L. The action time of the load switch is less than 100μs, which meets the requirements of power system reclosing, and the current limiting resistor R 2 Used for fault current limiting.
[0012] The working principle of the new bridge-type high-temperature superconducting fault current limiter: under normal operating conditions, the load switch FOLS1 is closed, the load switch FOLS2 is opened, and the resistance R 2 There is no current flow, and the working state is exactly the same as that of the b...
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