rated voltage of an arrester
1номинальное напряжение ОПН — номинальное напряжение Uн Действующее значение напряжения промышленной частоты, которое ограничитель может выдерживать в течение 10 с в процессе рабочих испытаний. Номинальное напряжение должно быть не менее 1,25 наибольшего длительно допустимого …
2Ferroresonance — The phenomenon of Ferroresonance is the occurrence of an unstable high voltage, typically on 3 phase electrical systems which only occurs under specific conditions. The nature of the overvoltage can cause the failure of equipment.Ferroresonance… …
3History of electromagnetism — The history of electromagnetism, that is the human understanding and recorded use of electromagnetic forces, dates back over two thousand years ago, see Timeline of electromagnetism. The ancients must have been acquainted with the effects of… …
4Spruce Falls (Saskatchewan) — Spruce Falls was the local name for a small waterfall where the Swan river empties into Duck lake in northeastern Saskatchewan, near the Manitoba boundary. It is located at 55°37′ N and 102°7′ W. The Swan river, about four miles in length, is the …
