Page 47 - 山东华科电气有限公司

XGN66-12
箱型固定交流金属封闭开关设备
Box type fixed AC metal-enclosed switchgear

结构特点 Structural 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 is welded with high-quality angle steel;
◆ The circuit breaker room is located in the middle (lower part) of the cabinet, which is convenient for installation, debugging and maintenance.
Standard VS1 circuit breaker with pressure relief channel to ensure personal safety;
◆ Adopt advanced and reliable rotary isolating switch, which can safely enter the circuit breaker room for maintenance when the main bus is charged;
◆ The whole cabinet protection grade IP2X;
◆ It has a mandatory mechanical locking device with complete and reliable functions, which can easily and effectively meet the requirements of “Five
Preventions”;
◆ Has a reliable grounding system;
◆ The door is equipped with an observation window to clearly observe the working status of the components inside the cabinet;
◆ The operating mechanism is locked with the JSXGN locking mechanism used in the XGN2-12 cabinet, which is simple, reliable, convenient and
practical;
◆ The incoming and outgoing cable is lower than the front of the cabinet for easy connection.

主要技术参数 The main technical parameters
开关柜主要技术参数及元件型号 Main technical parameters and component models of switchgear

项目 project 单位 unit 参数 parameter

额定电压 Rated voltage kV 3.6，7.2，12
额定工频耐受电压 Rated power frequency withstand voltage kV 对地，相间：42；断口：48
额定雷电冲击耐受电压 kV 对地，相间：75；断口：85
Rated lightning impulse withstand voltage
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 ) kA 20，25，31.5
Rated short-circuit breaking current (effective value)
额定短路关合电流 ( 峰值 ) kA 50，63，80
Rated short circuit closing current (peak)
额定动稳定电流 ( 峰值 ) kA 50，63，80
Rated dynamic current (peak)
额定热稳定电流 4s( 有效值 ) kA 20，25，31.5
Rated thermal stability current 4s (RMS)
防护等级 Protection level IP2X
外形尺寸 ( 宽 × 深 × 高) mm 900×1000×2300
Dimensions (width × depth × height)
重量 weight kg ≈ 600

38