短路计算讲义（英文）
本帖最后由 fifine 于 2012-3-24 14:44 编辑A “fault” refers to a short circuit in a power system. Faults can be divided into two broad classes: temporary and permanent faults. Temporary faults cause momentary disruption, but the fault is cleared without protection operation. The most common type of temporary faults are those from lightning. Permanent faults cause sustained disruption if not cleared by protection. The most common permanent fault types are associated with one or more of the following1.Wind2.Ice loading3.Thermal heating and sag4.Various “rare” events such as:a.
Trees growing into lineb.Automobile striking towerc.
Earthquakesd.Floodinge.
Airplanes
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