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XGN66-12
           固定式封闭开关设备
           Fixed enclosed switchgear



           VS1-12型真空断路器主要技术参数/Main technical parameters of vacuum circuit breaker


            名称                                            单位                          参数
            Name                                           Unit                     Parameter

            额定电压 Rated voltage                             kV                          12

            额定电流 Rated current                             A                        630,1250

            额定短路开断电流 Rated short-circuit breaking current  kA                      20,25,31.5
            额定短路关合电流 Rated short circuit closing current   kA                       50,63,80

            额定短时耐受电流(4s有效值)
            Rated short-time withstand current (4s rms)    kA                      20,25,31.5
            额定峰值耐受电流(峰值) Rated peak withstand current (peak)  kA                    50,63,80

                                                           次
            机械寿命 Mechanical life                                                      10000
                                                         Timess
            额定短路开断电流开断次数                                   次
            Rated short-circuit breaking current breaking times  Timess                50
            额定操作顺序 Rated operation sequence                                     分-0.3s-合分-180s-合分

            触头开距 Contact opening distance                 mm                          11±1

            触头接触行程 Contact contact stroke                 mm                          4±0.5

            相间中心距 Interphase center distance              mm                           210

            分闸速度 Opening speed                             m/s                       1.2±0.2

            合闸速度 Closing speed                             m/s                       0.6±0.2
            分闸时间 Opening time                              ms                         ≤60

            合闸时间 Closing time                              ms                         ≤75

            三相分闸同期性 Three-phase tripping synchronization   ms                          ≤2

            合闸弹跳 Closing bounce                            ms                          ≤2

            回路电阻 Loop resistance                           μΩ                         ≤45
            触头累积允许磨损厚度
            Contact accumulation allows wear thickness    mm                           3
           注:其它电器元件的技术参数见其各自的使用说明书。开关柜额定电流大于1600A的方案须与本公司协商解决。
           Note: The technical parameters of other electrical components can be found in their respective operating instructions. The scheme of the switchgear with rated current greater than 1600A
           shall be settled by negotiation with the company.
















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