频耐受电压见表3。表3变电站电气一次设备外绝缘额定工频耐受电压(有效值)kV系统标称设备最高额定工频耐受电压电压U电压(有m电流电压支柱绝缘变压器GIS断路器隔离开关避雷器效值)(有效值)互感器互感器子(湿)67.2222020202020202010123028282828282828202455505050505050503540.595959595959595956672.5147/150a160160160160160140140110126230230230230230230185200220252460460460460460460395395330363570510510510510510510510500550740740740740740740680740750800900960975975960960960960a750kV油浸式单相三绕组无励磁调压自耦变压器66kV侧套管外绝缘额定工频耐受电压。6.1.2变电站电气一次设备外绝缘额定雷电冲击耐受电压变电站电气一次设备外绝缘额定雷电冲击耐受电压见表4。表4变电站电气一次设备外绝缘额定雷电冲击耐受电压(峰值)kV系统标称设备最高电额定雷电冲击耐受电压电压(有效压U(有效m电流电压支柱值)变压器GIS断路器隔离开关避雷器值)互感器互感器绝缘子67.260606060606060601012757575757575757520241251251251251251251251253540.52002002002002002002002006672.5325/350a350350350350350325325110126550550550550550550450450220252105010501050105010501050950950330363117511751175117511751175117511756
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