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Indoor high voltage vacuum circuit breaker
          ZN63A(VS1)-12 户内高压真空断路器







          概述 /Overview

          VS1-12 型户内高压真空断路器，系三相交流 50Hz 额定电压为 12kV 电力系统的户内开关
          设备，作为电网设备、工矿企业动力设备的保护和控制单元。适用于要求在额定工作电流
          下的频繁操作，或多交开断短路电流的场所。
          该断路器采用操动机构与断路器本体一体式设计，即可做为固定安装单元，也可配有专用
          推进机构，组成手车单元作用。
          VS1-12 type indoor high voltage vacuum circuit breaker is a three-phase AC 50Hz
          indoor switchgear with rated voltage of 12kV power system. It is used as protection
          and control unit for power equipment and industrial and mining enterprise power
          equipment. It is suitable for places that require frequent operation at rated operating
          current, or where there is more short-circuit current.
          The circuit breaker adopts an integrated design of the operating mechanism and the
          circuit breaker body, and can be used as a fixed installation unit, or can be equipped
          with a special propulsion mechanism to form a handcart unit.

          型号含义 /Model meaning

          VS  1 - 12  / □ - □

                             额定短路开断电流 (kA)/Rated short-circuit breaking current (kA)
                             额定电流 (A)/Rated current (A)
                             额定电压 (kV)/Rated voltage (kV)
                             产品设计序号 /Product design serial number
                             户内高压真空断路器 /Indoor high voltage vacuum circuit breaker


          主要技术参数 /The main technical parameters

           项目 Project                                             单位 Unit               参数 Parameter
           额定电压 Rated voltage                                       KV                      12
           额定频率 Rated frequency                                     Hz                      50
                         1min 工频耐压                                                     对地 / 相间 42/48
           额定绝缘水平        1minpower frequency withstand voltage                     On the ground / phase 42/48
           Rated insulation                                         kA
           level         雷电冲击耐压 ( 峰值 )                                                 对地 / 相间 75/85
                         Lightning impulse withstand voltage (peak)                On the ground / phase 75/85
           额定短路开断电流 Rated short circuit breaking current            kA       20    25       31.5         40
                                                                            630    630  1250  1600   1250  1600
           额定电流                                                      A
           Rated current
                                                                            1250  1250  2000  2500   2000  2500
           额定短时耐受电流 ( 有效值 )Rated short-time withstand current (rms)          20    25       31.5         40
                                                                    kA
           额定峰值耐受电流 ( 峰值 )Rated peak withstand current (peak)                50    63       80          100
           额定短路关合电流 ( 峰值 )Rated short-circuit closing current (peak)         50    63       80          100
           额定短路电流持续时间 Rated short circuit current duration           S                       4
           机械寿命 Mechanical life                                     次                      20000
           二次回路工频耐受电压 (1min)                                         V                     2000
           Secondary circuit power frequency withstand voltage (1min)

                                                                                      分 -t- 合分 -t1- 合分
           额定操作顺序 Rated operating sequence                                          Points-t-points-t1-points



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