在本期的知識大講堂中，我們將分析講解“高低壓配電”系列產(chǎn)品中“MNS低壓抽出式開關(guān)柜”這款產(chǎn)品。它的適用環(huán)境是什么，又有什么樣的電氣特性呢？讓我們走進大講堂，來了解一下這款“MNS低壓抽出式開關(guān)柜”~

MNS低壓抽出式開關(guān)柜其技術(shù)水平達到九十年代國際先進水平。本產(chǎn)品設(shè)計緊湊，結(jié)構(gòu)通用性強，組裝靈活，采用標準模塊設(shè)計，是一種安全、經(jīng)濟、合理、可靠的新型低壓抽出式開關(guān)柜。產(chǎn)品具有分斷能力高，動熱穩(wěn)定性好，電氣方案靈活、保護等級高等特點。

本裝置符合IEC439，VDE660第5部分和GB7251-87《低壓成套開關(guān)設(shè)備》國家標準。ZBK36001-89《低壓抽出式成套開關(guān)設(shè)備》專業(yè)標準。

柜體尺寸：

產(chǎn)品示例：

概述：

MNS型低壓成套開關(guān)設(shè)備，適用于交流50Hz額定工作電壓660V及以下的系統(tǒng)，用于發(fā)電、輸電、配電、電能轉(zhuǎn)換和電能消耗設(shè)備的控制。符合IEC60439-1、GB7251.1及JB/T9661等相關(guān)標準。

主要性能與特點：

1. 框架為組合式結(jié)構(gòu)，基本骨架由C型鋼材組裝而成；

2. 每一個柜體分隔為三個室，即水平母線室、抽屜小室、電纜室。各隔室之間用鋼板或高強度阻燃塑料功能板相互隔開，上下層抽屜之間有帶通風孔的金屬板隔離，用以有效防止開關(guān)元件因故障引起的飛弧或母線與其它線路短路造成的事故；

3. 設(shè)計緊湊：以較小的空間容納較多的功能單元；

4. 結(jié)構(gòu)件通用性強、組裝靈活，以E=25mm為模數(shù)，結(jié)構(gòu)及抽出式單元可以任意組合，以滿足系統(tǒng)設(shè)計的需要；

5. 母線用高強度阻燃型、高絕緣強度的塑料功能板保護，具有抗故障電弧性能，使運行維修安全可靠；

6. 各種大小抽屜的機械聯(lián)鎖機構(gòu)符合標準規(guī)定，有連接、試驗、分離三個明顯的位置，安全可靠；

7. 材質(zhì)可選用冷軋板、鍍鋅板、敷鋁鋅板制作；

8. 柜體可分為全套功能板，半套功能板及矩形鐵制通道三種方式制作。

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.

抽屜類型：

抽屜類型分五種標準尺寸，都是以E=25mm為模數(shù)，它們分別為8E/4、8E/2、8E、16E和24E。單元回路額定電流400A及以下。其中8E/4和8E/2二種抽屜的結(jié)構(gòu)是用阻燃型塑料盒鋁合金型材組成。8E/4單元抽屜最大可承受電流為32A，8E/2單元抽屜最大可承受電流為63A。四種抽屜單元可在一個柜體中作單一組裝，也可作混合組裝。功能單元隔離總高度為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）.

客戶案例

合同編號：LD-C-438




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