在本期的知识大讲堂中，我们将分析讲解“高低压配电”系列产品中“MNS低压抽出式开关柜”这款产品。它的适用环境是什么，又有什么样的电气特性呢？让我们走进大讲堂，来了解一下这款“MNS低压抽出式开关柜”~

MNS低压抽出式开关柜其技术水平达到九十年代国际先进水平。本产品设计紧凑，结构通用性强，组装灵活，采用标准模块设计，是一种安全、经济、合理、可靠的新型低压抽出式开关柜。产品具有分断能力高，动热稳定性好，电气方案灵活、保护等级高等特点。

本装置符合IEC439，VDE660第5部分和GB7251-87《低压成套开关设备》国家标准。ZBK36001-89《低压抽出式成套开关设备》专业标准。

柜体尺寸：

产品示例：

概述：

MNS型低压成套开关设备，适用于交流50Hz额定工作电压660V及以下的系统，用于发电、输电、配电、电能转换和电能消耗设备的控制。符合IEC60439-1、GB7251.1及JB/T9661等相关标准。

主要性能与特点：

1. 框架为组合式结构，基本骨架由C型钢材组装而成；

2. 每一个柜体分隔为三个室，即水平母线室、抽屉小室、电缆室。各隔室之间用钢板或高强度阻燃塑料功能板相互隔开，上下层抽屉之间有带通风孔的金属板隔离，用以有效防止开关元件因故障引起的飞弧或母线与其它线路短路造成的事故；

3. 设计紧凑：以较小的空间容纳较多的功能单元；

4. 结构件通用性强、组装灵活，以E=25mm为模数，结构及抽出式单元可以任意组合，以满足系统设计的需要；

5. 母线用高强度阻燃型、高绝缘强度的塑料功能板保护，具有抗故障电弧性能，使运行维修安全可靠；

6. 各种大小抽屉的机械联锁机构符合标准规定，有连接、试验、分离三个明显的位置，安全可靠；

7. 材质可选用冷轧板、镀锌板、敷铝锌板制作；

8. 柜体可分为全套功能板，半套功能板及矩形铁制通道三种方式制作。

Overview :

MNS low voltage switchgear is suitable for system with AC50Hz and rated working voltage up to 660V，and applicable for power generation，transmission，distribution，charge-over and consumption equipment control. It conforms to relevant standards such as IEC60439-1，GB7251.1 and JB/T9661.

Main performance and features :

1. The frame is of combined structures with basic framework made up of assembled C-profiled bars;

2. Each cubicle is partitioned into horizontal busbar compartment，drawer compartment and cable compartment. Steel plates or flame-retardant plastic function boards of high strength are added as partition between drawers as to prevent switching element from accidents caused by flashover due to fault  or short-circuit of busbar with other circuits;

3. Compact design enables to accommodate more function units within limited space;

4. Structure members have great versatility and flexible assemble. Taking E=25mm as module，the structure and withdrawable unit can have random combination as to satisfy the demand of system design;

5. The busbar is protected by plastic function boards of high-strength flame-retardant and high insulation strength，which has performance against fault arc as to ensure safe and reliable running and maintenance;

6. Mechanical interlock gear of drawers in different sizes conforms to stipulations laid by standards and has three obvious positions;

7. Material optional with cold rolled steel，galvanized steel or Aluminum-zinc coated steel;

8. The cubicle can be made either with complete set or half-set canal covers.

抽屉类型：

抽屉类型分五种标准尺寸，都是以E=25mm为模数，它们分别为8E/4、8E/2、8E、16E和24E。单元回路额定电流400A及以下。其中8E/4和8E/2二种抽屉的结构是用阻燃型塑料盒铝合金型材组成。8E/4单元抽屉最大可承受电流为32A，8E/2单元抽屉最大可承受电流为63A。四种抽屉单元可在一个柜体中作单一组装，也可作混合组装。功能单元隔离总高度为72E（1800mm）。

Drawer types :

Drawer types：taking E=25mm as module，divided into five standard sizes as 8E/4、8E/2、8E、16Eand 24E. The rated current of unit loop is 400A or below. Among them，8E/4 and 8E/2 modules are made of fire-retardant plastics and aluminum alloy profiles。8E/4 module can withstand maximum current of 32A and 8E/2 of 63A.In one cabinet，we can choose the same type of module unit or four different types mounted together。The total height of function unit compartment is 72E（1800mm）.

客户案例

合同编号：LD-C-438




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