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A 35 kV/90 MVA saturated iron-core type superconducting FCL was developed and installed in a transmission network at Puji substation of China Southern Power Grid in 2007. To verify its capacity in fault current limiting, compliance with utility requirement, and fail-safe, current limiting tests were conducted in live-grid under artificially imposed short-circuit conditions on July 20, 2009. Five tests...
We developed a 35kV/90MVA Superconducting Fault Current Limiter (SFCL) and installed it in a transmission network at Puji substation of China Southern Power Grid at the end of 2007. A 72 hour period of trial operation was conducted before the SFCL was commissioned into the grid. This device demonstrated having very low impedance in normal power transmission and no adverse effect on the power network...
Proper design of the iron cores is crucial for a saturated iron core superconducting fault current limiter. An optimized design requires guaranteeing sufficient magnetic saturation on the iron cores holding the AC coils, ensuring the efficiency of current limiting, minimizing the use of materials, as well as satisfying the safety and stability obligations. One of the key tasks in the design is the...
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