▒   概述 SUMMARY

低压抽出式开关柜适用于三相交流频率为 50Hz，额定工作电压为 400V（690V），额定电流为 4000A 及以下的发、供电系统中，作为动力、配电和电动机集中控制、电容补偿之用。广泛应用于发电厂、石油、化工、冶金、纺织、高层建筑等场所，本产品符合 IEC60439-1、GB7251.1、JB/T9661 等标准。本柜体采用了新的制造工艺，各功能单元采用模块化设计，单元组合灵活方便，可实现替代目前市场上的 GCS 方案及功能。

Low-voltage draw-out switchgear is suitable for power generation and power supply systems with three-phase AC frequency of 50Hz, rated working voltage of 400V(690V) and rated current of 4000A or less, and is used for power, power distribution, motor centralized control and capacitance compensation. Widely used in power plants, petroleum, chemical industry, metallurgy, textile, high-rise buildings and other places, this product conforms to IEC60439-1, GB7251.1, JB/T 9661 and other standards. The cabinet adopts a new manufacturing process, and each functional unit adopts modular design, so that the unit combination is flexible and convenient, which can replace the GCS scheme and function on the market at present

▒   结构说明 STRUCTURE DESCRIPTION

♦新手摇式推进机构应用于单元抽屉，分手操和电操两大类。为多圈省力推进方式，实现轻松、灵活、平稳推进与移出抽屉，三工位具有机械定位、显示，并带有“咔哒”的位置声音提示功能，推进 630A 的三、四方案抽屉轻松灵活；合闸联锁具有再扣复位功能，推进机构原理与联锁机构技术优良。其中电操专用的联锁机构，能够保障切断开关才能移动抽屉，有效防止误操作，实现摇手柄进入机构（可操作状态）电操机构无法取电，只有拔出摇手柄，电操机构方可取电，使空开电动合闸，具有很高的操作安全性；

♦新手拉式推进联锁机构应用于单元抽屉，具有三位置锁定、显示、合闸联锁位置辅助电源功能，开关再扣复位功能；

♦新小型手拉式推进机构应用于 1/2、1/4 抽屉单元，具有三位置锁定、显示、合闸联锁位置辅助电源功能，开关再扣复位功能；

♦抽屉新推进联锁机构具有分离、试验、连接位置机械显示，电气接点与位置同步。

♦ The new hand-operated propulsion mechanism is applied to unit drawers, break-up operation and electric operation. It is a multi-circle laborsaving propulsion mode, which realizes easy, flexible and stable propulsion and removal of drawers. Three-station tool It has mechanical positioning and display, and has a "click" position sound prompt function, which makes it easy and flexible to promote the three-pole and four-pole drawers of 630A; Closing interlock has the function of re-locking and resetting, and the principle of propulsion mechanism and the technology of interlocking mechanism are advanced. Among them, the special interlocking mechanism for electric operation can ensure that the drawer can be moved only 

by cutting off the switch, effectively preventing misoperation, and realizing that the electric operation mechanism can not take electricity when the rocking handle enters the mechanism (operational state), and only when the rocking handle is pulled out, the electric operation mechanism can take electricity, which makes the empty opening and electric closing have high operation safety;

♦ The new hand-pulled propulsion interlocking mechanism is applied to the unit drawer, which has the functions of three-position locking, display, closing interlocking position auxiliary power supply, and switch re-button reset function;

♦ The new small hand-pulled propulsion mechanism is applied to 1/2 and 1/4 drawer units, and has the functions of three-position locking, display, closing interlock position auxiliary power supply, and switch re-buckling reset function;

♦ The new push interlocking mechanism of drawer has mechanical display of separation, test and connection position, and the electrical contacts are synchronized with the position