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



          型号及含义/Type and meaning

          X   G   N   66 -  12

                             额定电压(kV)/Rated voltage (kV)
                             设计序号/Design No.
                             户内/Indoor
                             固定式/Fixed type
                             箱型开关设备/ Box switchgear

          正常使用条件/Normal service condition
          ● 海拔高度不超过1000m；                            ● Alttude is no more than 1000m；
          ● 环境温度：－25℃ ~ +40℃，24小时内平均温度不超过+35℃；       ● Ambient temperature ：－25℃ ~ +40℃ The average temperature within 24 hours is no more than +35℃；
          ● 水平倾斜度不大于3°；                              ● Horizontal inclination is no more than 3°；
          ● 地震强度不超过8度；                               ● Earthquake intensity is no more than grade 8 ；
          ● 无剧烈振动和冲击及爆炸危险场所。                         ● It is used in the place without strong vibration ,shock and explosition danger.


          结构特点/Structure features
          ● 柜体采用优质角钢焊接而成；
          ● 断路器室位于柜体中(下)部，安装、调试、维护方便。标准配装VS1断路器，并设有压力释放通道，确保人身安全；
          ● 采用先进可靠的旋转式隔离开关，可在主母线带电下安全进入断路器室检修；
          ● 整柜防护等级IP2X；
          ● 设有可靠功能齐全的强制性机械闭锁装置，简便有效达到“五防”要求；
          ● 具有可靠的接地系统；
          ● 门上装有观察窗，可清楚观察到柜内元件的工作状态；
          ● 操作机构闭锁采用同XGN2-12柜用的JSXGN闭锁机构，简单可靠方便实用；
          ● 进出线电缆低于柜体前部，方便用户连接。

          ● The cabinet body is welded by the excellent angle steel;
          ● The circuit breaker compartment is in the middle (lower) of the cabinet for the convenience of installation, regulation and maintenance .Standard VS1
           circuit breaker is provided and pressure relief channel is provided for the personnel safety
          ● Advanced rotation disconnector is used and maintenance can be made in the circuit breaker when the bus is at live condition.  ；
          ● The protection grade of the complete cabinet is IP2X；
          ● Reliable compulsory mechanical interlock device is provided so to reach effectively  “Five prevention” requirement  ；
          ● It has reliable earthing system；
          ●Sight glass is installed on the door so to observe clearly he operation condition of the elements inside the cabinet ；
          ● The lock of operating mechanism adopts JSXGN lock mechanism which is the same for XGN2-12 cabinet, is simple and reliable .
          ● The inlet and outlet cable is lower than the front of cabinet for the convenience of customer wiring connection.

          主要技术参数/Main technical data

           名称                                       单位                            参数
           Name                                      Unit                       Parameter
           额定电压  Rated voltage                       kV                        3.6，7.2，12
           额定工频耐受电压  Rated p.f.withstandvoltage      kV  对地及相间42;隔离断口48Phase to earth and between phases 42; across open contacts 48
           额定雷电冲击耐受电压 Rated lightning impulse withstand voltage   kV  对地及相间75;隔离断口85Phase to earth and between phases 75; across open contacts 85
           额定频率 Rated frequency                      Hz                            50
           额定电流 Rated current                        A                         630，1250，
           额定短路开断电流(有效值) Rated short circuit breaking current (rms)  kA       20，25，31.5，
           额定短路关合电流(峰值) Rated short circuit making current (peak)   kA         50，63，80，
           额定动稳定电流(峰值)  Rated peak withstand current (peak)   kA               50，63，80
           额定热稳定电流4s(有效值) Rated short time withstand current for 4 s( rms)   kA  20，25，31.5
           防护等级 Protection grade                                                  IP2X
           外形尺寸(宽×深×高) Appearance dimension (W×D×H)   mm                      900×1000×2300
           重量 Weight                                 Kg                          ≈600






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