| Title |
A Study on Combination Technology of a Transformer and a Superconducting Fault Current Limiter |
| Keywords |
Superconducting Fault Current Limiter ; Combination Technology ; Quench ; Transformer ; Operating Mechanism |
| Abstract |
We tried to combine a transformer with a superconducting element and investigated the current limiting characteristics. When a superconducting element was connected to third winding of the transformer, the fault current was limited to about 90 % effectively. The fault current and consumption power were able to be controlled by the turn's ratio of secondary and third windings. It gives flexibility of the rating of a transformer in the power grid. As a result, power burden of a superconducting element was reduced by the decrease of turn's ratio in third winding of a transformer. It was because the voltage behavior of a superconducting element was dependent on turn's ratio of a transformer while the current characteristic was independent. |