Relay protection for lines being sleet-melted by the short-circuit method
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"Sleet formation on transmission lines was recognized as a serious operating problem as early as 1916 and shortly thereafter methods were devised to melt sleet. In recent years various ways have been presented for connecting lines and power sources to obtain the current necessary for sleet melting. Forced loading, phase shifting, and short circuiting are utilized extensively for this purpose. Problems of relay protection during sleet melting were not specifically presented in former papers. The purpose of this paper is to present the particular problem of protection under such conditions and to propose a means of detecting faults on lines being sleet-melted by the short-circuit method."--Page 1.