@article{oai:nagoya.repo.nii.ac.jp:02001731, author = {MIYAJI, Iwao and SHIMURA, Norio}, issue = {1}, journal = {Memoirs of the Faculty of Engineering, Nagoya University}, month = {Sep}, note = {One of the authors has reported how the neutral potential displacement took place in resonant transmission system after any single stage fault had occurred. In this paper, they extend their argument on neutral potential to such complex cascaded phenomena as those incidental to switching operation, grounding of broken line or lines. The general description of those complex phenomena is performed at first to the extent of the theoretical determination of the position of neutral potential displaced in steady state, and then up to the graphical representation of results of experiments, which are measured by means of model transmission system and the “neutral potential tracer.” These complex phenmena can be fundamentally expressed as the resultant potentials of free oscillation and forced one, both determined by newly constructed circuit conditions of each stage, where the time intervals only come into question. The following is the synopsis of their study of the complex phenomena treated as the succession of 1-line grounded, 1-line broken, restoring 1-line broken or 1-line closed phenomenon occurring in the reactor compensated transmission system. The steady state displacement of ground potential against the system neutral is sometimes represented, taking compensation factors as parameters, by a circle which is characterized by its particular position and magnitude compared with the source triangle of voltages corresponding to each accident. Such circles of vector loci for different phenomena are geometrically so arranged as to have interesting relative positions to the source triangle, and most of the complicated fault phenomena can easily be analysed by means of those circles. Experimental results show that the changing transient overvoltages are thus intuitively understood and traced in accordance with the lapse of time.}, pages = {77--82}, title = {Neutral potential displacement in arc-suppressing reactor system}, volume = {4}, year = {1952} }