| 摘要 |
A protection device for electric distribution network with an insulated or compensated neutral against brake of a phase wire contains AC-DC voltage converters, a scheme adapting element, a signal delay element, an output unit, a negative-sequence current filter, a normally-closed contact of relay protection against interphase short-circuits, three comparators, a negative-sequence current command generator, a zero sequence voltage command generator, a time command generator and a switch. |
