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YB □ -12/0.4(F·R) 高、低压预装式变电站 ( 欧式 )
High and low voltage
prefabricated substations (European)

型号含义 / Model meaning

Y B □ - 12/0.4 - □
额定容量 Rated Capacity
额定电压 ( 高压 / 低压 ) Rated voltage (high voltage / low voltage)
设计序号 Design Number
变电站 Substation
预装式 Preloaded

使用条件 / Conditions of Use

● 海拔高度不超过 2000m；
● 环境温度：-25℃ ~+40℃；
● 相对湿度：在 25℃时，日平均值不大于 95%，月平均值不大于 90%；
● 安装场所：无火灾、爆炸危险、导电尘埃、化学腐蚀性气体及剧烈震动的场所，若超出以上条件时，用户可与我公司协商。
● The altitude does not exceed 2000m;
● Ambient temperature: -25℃ ~ +40℃ ;
● Relative humidity: at 25 ℃ , the daily average is not more than 95%, and the monthly average is not more than 90%;
● Installation site: no fire, explosion hazard, conductive dust, chemical corrosive gas and severe vibration. If the above conditions are
exceeded, the user can negotiate with our company.

负荷开关技术参数 / Load switch technical parameters

项目 单位 FKN12-12负荷开关 FZN25-12真空负荷开关
Project Unit Load switch Vacuum load switch

额定电压 Rated voltage kV 10
最高工作电压 Maximum working voltage kV 12
额定频率 Rated frequency Hz 50
额定电流 Rated current A 630

额定开断负荷电流
Rated breaking load current A 630

热稳定电流(有效值)
Thermally stable current (effective value) kA/S 20/2 20/4

动稳定电流
Dynamic steady current kA 50 50
短路关合电流(峰值) kA 50 50
Short circuit closing current (peak)

满负荷开断次数
Full load breaking times 次 20 10000
机械寿命 Mechanical life 次 2000 10000
1min工频耐压(相间及对地)
power frequency withstand voltage kV 42 42
(interphase and ground)
雷电冲击电压(相对及对地)
Lightning impulse voltage (relative to kV 75 75
ground)

Product Catalogue 42