浅谈动热稳定校验的公式简化及结论

Discussion on the Formula Simplification and Conclusion of Dynamic Thermal Stability Check

动热稳定性能校验的目的主要是为了检验电力系统发生短路故障时,冲击短路电流产生的电动力是否超出设备的承受能力,导致设备的型式结构遭到破坏;以及在短路电流的作用下,设备的大幅度温升是否超过该设备所能允许的最高温度,使设备烧毁。

The purpose of the dynamic and thermal stability test is to check whether the electric force generated by the impulse short circuit current exceeds the bearing capacity of the equipment when the electric power system has a short circuit fault,which leads to the destruction of the type structure of the equipment.And under the action of short circuit current,whether the large temperature rise of the equipment exceeds the maximum allowable temperature of the equipment,so that the equipment is burned down.