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KYN28A-12 铠装开移式金属封闭开关设备
          Armored open
          metal sealing switchgear


          型号含义 / Model meaning

          K  Y  N  28A  -  12  /  □  □
                                     环境特征代号 Environmental feature code
                                     TH- 用于湿热带;TA- 用于干热带;G- 用于高海拔;C- 用于寒带
                                     TH-for wet tropical; TA- for dry tropical; G- for high altitude; C- for cold zone
                                     一次回路方案 Primary circuit scheme
                                     额定电压 Rated voltage
                                     设计序号 Design Number
                                     户内用 Indoor use
                                     移开式(手车中置式)Removal type (handcart center type)
                                     金属封闭铠装式 Metal-enclosed armored


          使用条件 / Conditions of Use

          ● 环境温度:最高温度 +40℃,最低温度 -15℃ ( 特殊工艺下,可达 -45℃ );
          ● 环境湿度:日平均 <95%.月平均值≤ 90%;
          ● 海拔高度:1000m 以下;
          ● 抗地震度;地震烈度不超过 8 级;
          ● 周围空气应不含腐蚀性或可燃气体、水蒸气等明显污染;
          ● 无严重污秽及经常性的剧烈震动,严酷条件下严酷度设计满足 1 类要求;
          ● 在超过 GB3906 规定的正常环境条件下使用时,由用户和制造厂协商。
          注:①相对湿度大于 70% 时应接通电加热器。 ②凡海拔高度超过 1000m 的地方,按 JB/Z102-71 规定处理。
          ● Ambient temperature: the highest temperature +40 ℃ , the lowest temperature -15 ℃ (under special process, up to -45 ℃ );
          ● Ambient humidity: daily average <95%. Monthly average ≤ 90%;
          ● Altitude: less than 1000m;
          ● Anti-seismic; the seismic intensity does not exceed 8;
          ● The surrounding air should be free of corrosive or flammable gas, water vapor and other obvious pollution;
          ● No serious pollution and frequent severe vibration. Strict design under severe conditions meets Class 1 requirements;
          ● When using in the normal environmental conditions specified in GB3906, the user and the manufacturer negotiate.
          Note: 1 When the relative humidity is greater than 70%, the electric heater should be turned on. 2 Where the altitude is more than 1000m,
                     it shall be treated according to JB/Z102-71.


          技术参数 / Technical Parameters


           项目 Project                                          单位 Unit               参数 Parameter
           额定电压 Rated voltage                                    kV                   3.6,7.2,12
           额定频率 Rated frequency                                  Hz                       50
           断路器额定电流 Circuit breaker rated current                 A           630、1250、1600、2000、2500、3150
           开关柜额定电流 Switch cabinet rated current                  A           630、1250、1600、2000、2500、3150
           额定动稳定电流 Rated dynamic current(4s)                     kA              16、20、25、31.5、40、50
           额定稳定电流(峰值) Rated steady current (peak)                kA              40、50、63、80、100、125
           额定短路开断电流 Rated short-circuit breaking current         kA              16、20、25、31.5、40、50
           额定短路关合电流(峰值) Rated short circuit closing current (peak)  kA           40、50、63、80、100、125
           额定绝缘水平       1min工频耐受电压 Power frequency withstand voltage        24           32            42
           Rated insulation                                      kV
           level        雷冲击耐受电压 Light impulse withstand voltage             40           60            75
                                                                             外壳IP4X、隔离间、断路器室门打开时为IP2X
           防护等级 Protection level                                        IP2X for enclosure IP4X, isolation compartment, and circuit
                                                                                  breaker compartment door

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