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P. 19

KYN28-12
          铠装移开式交流金属封闭开关设备
          Armored removable AC metal-enclosed switchgear



          型号及含义/Type and meaning

          K   Y   N     28  -  12   Z
                              真空断路器/Vacuum circuit breaker
                              额定电压(kV)/Rated voltage (kV)
                              设计序号/ Design No.
                              户内/Indoor
                              移开式/Withdraw type
                              金属铠装式/Metal cald type



          使用条件/Service condition
          ● 周围空气温度:最高温度+40℃,最低温度-15℃;
          ● 相对湿度:日平均相对湿度:≤95%,日平均水蒸气压力不超过2.2KPa;月平均相对湿度≤90%;月平均水蒸气压力不超过1.8KPa;
          ● 海拔高度:≤1000m;
          ● 地震强度:不超过8度;
          ● 周围空气应不受腐蚀性或可燃气体、水蒸气等明显污染;
          ● 无剧烈振动场所;
          ● 超出GB3906规定的正常条件下使用时,由用户和本公司协商。
          ● Ambient temperature :Max. +40℃,Min.-15℃;
          ● Relative humidity:Daily average relative humidity :≤95%,Daily average steam pressure is no more than  2.2KPa; Monthly average relativehumidity
           ≤90%;Monthly average steam pressure is no more than 1.8KPa;
          ● Altitude :≤1000m;
          ● Earthquake intensity:No more than grade 8 ;
          ● Ambient shall be free from corrosive or flammable and steam pollution  ;
          ● The place without strong vibration;
          ● In case of normal application above specification o GB3906 , the customer and the manufacturer shall negotiate.



          主要技术参数/Main technical data

           名称                                                        单位                    参数
           Name                                                      unit                  Data
           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  Rated current of circuit breaker                  A        630、1250、1600、2000、2500、3150
           开关设备额定电流 Rated current of switchgear                       A        630、1250、1600、2000、2500、3150
           额定短时耐受电流(4S )Rated short time withstand current (4s)      kA               20、25、31.5、40
           额定峰值耐受电流(峰值) Peak withstand current (peak)                kA               50、63、80、100
           额定短路开断电流 Rated short circuit breaking current             kA               20、25、31.5、40
           额定短路关合电流(峰值) Rated short circuit making current (peak)    kA               50、63、80、100
                                        极间、极对地间
           额定绝缘水平                       Between phases and phas to earth  kV            24、32、42
           1min工频耐受电压
           Rated insulation level       断口间
            P.f withstand voltage for 1 1min  Across open contacts   kV                 24、32、42
           雷电冲击                         极间、极对地间                      kV                 40、60、75
           耐受电压(峰值)                     Between phases and phase to earth
            Lightning impulse           断口间
            Withstand voltage (peak)    Across open contacts         kV                 46、70、85
           防护等级                                                             外壳为IP4X,隔室间、断路器室门打开时为IP2X。
            Protection grade                                               IP 4X for case and IP2X for segregation compartment
                                                                                  and circuit breaker compartment









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