An opportunity of fault current limitation in power systems with superconducting transmission lines made of 2G HTS tapes

2G HTS conductors are known to have high critical parameters what gives an opportunity of making various fault current limiting devices. One of them is proposed in this paper the HTS fuse – HTSF), the design of which was developed and previously protected by a patent. Due to its simplicity, this device has a low cost as compared with others and can be replaced very easily after actuation and burning out. Another advantage of the HTSF is a low capacity of its cryogenic system, due to its low mass and dimension characteristics, but if it is used together with a HTS cable there is no necessity of having a special cryogenic system at all, since the HTSF cooling down can be performed by that one of the HTS cable. Here are given the calculations of the fault current limitation efficiency of the HTSF within the electric power system having a HTS transmission line.