MNS低壓抽屜(ti)柜(ju)憑(ping)借其結構(gou)緊(jin)湊、模塊化(hua)設計、安(an)全(quan)可靠等(deng)(deng)技術優勢，在(zai)眾多領(ling)域得到(dao)了廣泛應用(yong)(yong)。其主(zhu)要應用(yong)(yong)場景(jing)包括發電(dian)廠、變電(dian)站、石(shi)油化(hua)工、冶金(jin)軋鋼、工礦企業等(deng)(deng)工業場所，以及住(zhu)宅小區、高層(ceng)建筑、酒店賓館、機場碼頭(tou)、廣播電(dian)視通信中心(xin)等(deng)(deng)民用(yong)(yong)和基(ji)礎(chu)設施(shi)領(ling)域。MNS柜(ju)既可作為(wei)配電(dian)中心(xin)（PC柜(ju)）用(yong)(yong)于(yu)大(da)容(rong)量電(dian)能(neng)分配，也可作為(wei)電(dian)動(dong)機控制(zhi)中心(xin)（MCC柜(ju)）用(yong)(yong)于(yu)電(dian)動(dong)機的(de)起(qi)動(dong)、運行(xing)控制(zhi)和保(bao)護。在(zai)PC柜(ju)中，通常采用(yong)(yong)框(kuang)架式斷(duan)路器（如(ru)AH、CW1、AE、RMW1、ME等(deng)(deng)系列）進行(xing)配電(dian)；在(zai)MCC柜(ju)中，各回路主(zhu)開關采用(yong)(yong)高分斷(duan)能(neng)力的(de)塑殼(ke)斷(duan)路器或旋轉式帶(dai)熔斷(duan)器的(de)負荷開關。此外，MNS柜(ju)還可通過(guo)電(dian)容(rong)補(bu)償柜(ju)對(dui)主(zhu)母線進行(xing)無功補(bu)償。

MNS low-voltage drawer cabinets have been widely used in many fields due to their compact structure, modular design, safety and reliability advantages. Its main application scenarios include industrial sites such as power plants, substations, petrochemicals, metallurgical steel rolling, and industrial and mining enterprises, as well as residential areas, high-rise buildings, hotels and guesthouses, airport terminals, radio and television communication centers, and other civil and infrastructure fields. The MNS cabinet can be used as both a distribution center (PC cabinet) for large capacity power distribution and a motor control center (MCC cabinet) for motor starting, operation control, and protection. In PC cabinets, frame type circuit breakers (such as AH, CW1, AE, RMW1, ME series, etc.) are usually used for power distribution; In the MCC cabinet, the main switches of each circuit adopt high breaking capacity plastic shell circuit breakers or rotary load switches with fuses. In addition, the MNS cabinet can also perform reactive power compensation on the main busbar through a capacitor compensation cabinet.

隨著智(zhi)(zhi)(zhi)能化(hua)(hua)技術的(de)發展(zhan)，MNS平(ping)臺已(yi)衍生出多種智(zhi)(zhi)(zhi)能化(hua)(hua)解(jie)決(jue)方(fang)案。MNS iS綜合智(zhi)(zhi)(zhi)能電(dian)動機控制系(xi)統、MNS iPDU機房配電(dian)柜(ju)等(deng)解(jie)決(jue)方(fang)案，將電(dian)力和(he)自動化(hua)(hua)技術深度結(jie)合。MNS Digital數(shu)(shu)字(zi)化(hua)(hua)開(kai)關柜(ju)和(he)MNS數(shu)(shu)字(zi)化(hua)(hua)管(guan)理(li)平(ping)臺則進一步實(shi)現了設(she)備的(de)數(shu)(shu)字(zi)化(hua)(hua)管(guan)理(li)和(he)智(zhi)(zhi)(zhi)能運維。智(zhi)(zhi)(zhi)能型(xing)MNS低壓開(kai)關柜(ju)除具有設(she)計靈活、結(jie)構緊湊和(he)免維護等(deng)特點(dian)外(wai)，安(an)全可(ke)靠(kao)性是其非常(chang)突出的(de)優(you)點(dian)，包括抗故障電(dian)弧、可(ke)靠(kao)的(de)絕緣分隔及接(jie)插性能、可(ke)靠(kao)的(de)抽屜單元(yuan)和(he)溫升限制。ABB MNS? 3.0 Digital數(shu)(shu)字(zi)化(hua)(hua)低壓開(kai)關柜(ju)甚至可(ke)實(shi)現AI驅動的(de)預測(ce)性維護。

With the development of intelligent technology, the MNS platform has spawned various intelligent solutions. The MNS iS comprehensive intelligent motor control system, MNS iPDU machine room distribution cabinet and other solutions deeply integrate power and automation technology. The MNS Digital switchgear and MNS digital management platform further realize the digital management and intelligent operation and maintenance of equipment. In addition to its flexible design, compact structure, and maintenance free features, the intelligent MNS low-voltage switchgear has the most prominent advantage of safety and reliability, including resistance to fault arcs, reliable insulation separation and plugging performance, reliable drawer units, and temperature rise limitations. ABB MNS? 3.0 Digital digital low-voltage switchgear can even achieve AI driven predictive maintenance.

在選(xuan)(xuan)(xuan)型方面，需要根(gen)據(ju)實際應用(yong)(yong)需求綜合考(kao)慮多(duo)個因(yin)素(su)。首先是額定電流和短路(lu)(lu)耐受能(neng)力的(de)選(xuan)(xuan)(xuan)擇。MNS柜水平(ping)母(mu)線額定電流范圍從630A到5000A不(bu)等，垂直母(mu)線額定電流可達1000A，用(yong)(yong)戶(hu)應根(gen)據(ju)系統負荷(he)大小(xiao)(xiao)選(xuan)(xuan)(xuan)擇合適的(de)額定電流等級；同時要根(gen)據(ju)電網短路(lu)(lu)容(rong)量(liang)(liang)選(xuan)(xuan)(xuan)擇相應的(de)短時耐受電流等級（50kA、65kA、80kA或100kA）。其次(ci)是抽屜單(dan)元(yuan)類型和數量(liang)(liang)的(de)選(xuan)(xuan)(xuan)擇。MNS柜的(de)抽屜單(dan)元(yuan)有5種(zhong)規格（8E/4、8E/2、8E、16E、24E），每種(zhong)規格對應不(bu)同的(de)回(hui)(hui)路(lu)(lu)容(rong)量(liang)(liang)。8E/4單(dan)元(yuan)非常(chang)大可承(cheng)受電流約(yue)32A，適用(yong)(yong)于小(xiao)(xiao)容(rong)量(liang)(liang)回(hui)(hui)路(lu)(lu)；8E/2單(dan)元(yuan)適用(yong)(yong)于中等容(rong)量(liang)(liang)回(hui)(hui)路(lu)(lu)；16E和24E大單(dan)元(yuan)則適用(yong)(yong)于大容(rong)量(liang)(liang)回(hui)(hui)路(lu)(lu)。單(dan)柜非常(chang)多(duo)可裝36個抽屜單(dan)元(yuan)，用(yong)(yong)戶(hu)應根(gen)據(ju)回(hui)(hui)路(lu)(lu)數量(liang)(liang)和容(rong)量(liang)(liang)需求合理配置。

In terms of selection, multiple factors need to be comprehensively considered based on actual application needs. Firstly, the selection of rated current and short-circuit withstand capability. The rated current range of the horizontal busbar of the MNS cabinet varies from 630A to 5000A, and the rated current of the vertical busbar can reach 1000A. Users should choose the appropriate rated current level according to the system load size; At the same time, the corresponding short-time withstand current level (50kA, 65kA, 80kA, or 100kA) should be selected based on the short-circuit capacity of the power grid. Next is the selection of drawer unit types and quantities. The drawer units of the MNS cabinet come in 5 specifications (8E/4, 8E/2, 8E, 16E, 24E), each corresponding to a different circuit capacity. The maximum current that the 8E/4 unit can withstand is about 32A, suitable for small capacity circuits; 8E/2 units are suitable for medium capacity circuits; The 16E and 24E large units are suitable for high-capacity circuits. A single cabinet can hold up to 36 drawer units, and users should configure them reasonably according to the number of circuits and capacity requirements.

第(di)(di)三(san)是(shi)進出(chu)線(xian)方式的(de)選(xuan)擇。MNS柜(ju)支(zhi)持上(shang)進上(shang)出(chu)、上(shang)進下出(chu)、下進上(shang)出(chu)、下進下出(chu)等多(duo)種方案，需(xu)(xu)(xu)(xu)根據(ju)現場電纜走向和安(an)裝條件確定。第(di)(di)四是(shi)防護(hu)等級的(de)選(xuan)擇。標準型(xing)為(wei)(wei)IP3X，可(ke)根據(ju)環境需(xu)(xu)(xu)(xu)求選(xuan)擇IP31、IP4X、IP43等不同(tong)等級。需(xu)(xu)(xu)(xu)要注意的(de)是(shi)，防護(hu)等級過高(gao)（如IP54及以上(shang)）應與制(zhi)造商協商。第(di)(di)五是(shi)柜(ju)體尺(chi)寸的(de)確定。MNS抽出(chu)式開關柜(ju)寬度(du)有1000mm、800mm和600mm三(san)種規格，柜(ju)深通常為(wei)(wei)600mm、800mm或1000mm，高(gao)度(du)一般為(wei)(wei)2200mm，需(xu)(xu)(xu)(xu)根據(ju)安(an)裝空間和進出(chu)線(xian)需(xu)(xu)(xu)(xu)求選(xuan)擇。

The third is the choice of entry and exit methods. The MNS cabinet supports multiple options such as upper and upper exits, upper and lower exits, lower and upper exits, and lower and lower exits, which need to be determined based on the cable routing and installation conditions on site. The fourth is the selection of protection level. The standard type is IP3X, and different levels such as IP31, IP4X, IP43 can be selected according to environmental requirements. It should be noted that if the protection level is too high (such as IP54 or above), it should be negotiated with the manufacturer. The fifth is the determination of cabinet size. The width of MNS withdrawable switchgear comes in three specifications: 1000mm, 800mm, and 600mm. The cabinet depth is usually 600mm, 800mm, or 1000mm, and the height is generally 2200mm. It needs to be selected according to the installation space and incoming and outgoing line requirements.

在實(shi)際應(ying)用(yong)(yong)中(zhong)，MNS柜的(de)(de)設計緊湊性優勢尤(you)為突出。以某數(shu)據中(zhong)心項(xiang)目為例(li)，采用(yong)(yong)MNS柜構建配(pei)電系(xi)統，單柜可集成36個1/4抽屜單元(yuan)，實(shi)現對服務(wu)器集群的(de)(de)精細化(hua)供(gong)電管理。在地鐵等大型基礎設施項(xiang)目中(zhong)，MNS柜同樣憑借(jie)其可靠(kao)的(de)(de)接(jie)插件(jian)性能和大容量(liang)負荷承載(zai)能力獲(huo)得(de)了(le)廣泛應(ying)用(yong)(yong)。總體而言，MNS低壓(ya)抽屜柜以其標準化(hua)的(de)(de)模塊設計、靈活的(de)(de)組(zu)合方式和可靠(kao)的(de)(de)機械聯(lian)鎖(suo)裝(zhuang)置，為用(yong)(yong)戶提(ti)(ti)供(gong)了(le)安全、快捷、易維護的(de)(de)低壓(ya)配(pei)電解(jie)決方案(an)。隨著(zhu)智能電網和工業(ye)自動化(hua)的(de)(de)發展，MNS柜正朝著(zhu)智能化(hua)、數(shu)字化(hua)方向不斷演進，為現代電力系(xi)統的(de)(de)可靠(kao)運(yun)行(xing)提(ti)(ti)供(gong)更加堅實(shi)的(de)(de)保(bao)障。

In practical applications, the compactness advantage of MNS cabinet design is particularly prominent. Taking a data center project as an example, an MNS cabinet is used to construct a power distribution system, which can integrate 36 1/4 drawer units in a single cabinet, achieving refined power supply management for server clusters. In large-scale infrastructure projects such as subways, MNS cabinets have also been widely used due to their reliable connector performance and large capacity load bearing capacity. Overall, MNS low-voltage drawer cabinets provide users with a safe, efficient, and easy to maintain low-voltage distribution solution with their standardized module design, flexible combination methods, and reliable mechanical interlocking devices. With the development of smart grids and industrial automation, MNS cabinets are constantly evolving towards intelligence and digitization, providing a more solid guarantee for the reliable operation of modern power systems.

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