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Description
No-insulation (NI) coil made of 2G HTS tape has many advantages over insulated coil that it has higher engineering current density and self-protection characteristic. While there are few researches of NI coil in AC power application due the charging/discharging delay of NI coil. In this paper, we apply NI coil into inductive superconducting fault current limiter (iSFCL) as the secondary shielding coil and fabricate a prototype iSFCL. The NI coil works in inductive mode that there no longer exists charging/discharging delay. The basic electromagnetic characteristics of the prototype iSFCL are tested, such as the voltage drop during normal operation and the current limiting characteristic. Additional experiment is also conducted to testify the better thermal conductivity of NI coil can shorten the quench recovery time of the iSFCL, which is beneficial to the reclosure of the power grid.
| Submitters Country | China |
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