概述   Outline

MNS 低壓抽出式成套開關(guān)設(shè)備（以下簡稱為裝置）是參考MNS 系列低壓開關(guān)柜并加以綜合改進(jìn)后用標(biāo)準(zhǔn)模件生產(chǎn)制造的產(chǎn)品。本裝置適用于交流 50Hz，額定工作電壓 660V 及以下的系統(tǒng)。作為各種發(fā)電、輸電、配電、電能轉(zhuǎn)換和電能消耗設(shè)備的控制設(shè)備，能廣泛應(yīng)用于各工礦企業(yè)、大樓賓館、市政建設(shè)等低壓配電系統(tǒng)中。除一般陸用外，經(jīng)過處理后，還可以用于海上石油鉆采平臺和核電站中。 

本裝置符合 IEC439-1，GB7251.1標(biāo)準(zhǔn)。

MNS LV withdrawable switchgear (hereinafter referred to as device) is manufactured by standard module through consulting MNS series low voltage switch cabinet of Switzerland Co-mpany, and synthetically improved. The device is applicable to the system with AC 50Hz, rated working voltage 660V and below, used as control device for various power generation, transmission, distribution, power transfer and power consumption device. It is widely used in low voltage distribution system of various mining enterprise, tall building and hotel, municipal construction etc. Besides the general land use, after special disposal, it also can be used for marine petrol drill taken platform and nuclear power station. 

The device accords with international standard IEC439-1 and national standard GB7251.1.

主要特點  Main feature

1. 設(shè)計緊湊：以較小的空間能容納較多的功能單元。 

2. 結(jié)構(gòu)通用性強，組裝靈活，以 25mm 為模數(shù)的 C 型型材能滿足各種結(jié)構(gòu)型式、防護(hù)等級、使用環(huán)境的要求。 

3. 采用標(biāo)準(zhǔn)模塊設(shè)計：分別可組成保護(hù)、操作、轉(zhuǎn)換、控制、調(diào)節(jié)、測定、指示等標(biāo)準(zhǔn)單元。用戶可根據(jù)需要任意選用組裝，以 200 余種零件可以組 成不同方案的柜架結(jié)構(gòu)和抽屜單元。 

4. 安裝性好：大量采用高強度阻燃型工程塑料組件，有效加強防護(hù)安全性能。 

5. 技術(shù)性能高：主要參數(shù)達(dá)到國內(nèi)優(yōu)良水平。

1. Compact design: Contain more function units with less space. 

2. Strong versatility for structure, flexible assembly. C type bar section of 25mm modulus can meet the demands of various structure and type, protection grade and operating environment. 

3. Adopt standard module design, can be combined into protection, operation, transfer, control, regulation, measurement, indication etc such standard units. User can choose assembly according to requirement at will. Cabinet structure and drawer unit can be formed with more than 200 components. 

4. Fine security: Adopt high strength antiflaming type engineering plastic pack in large quantity to effectively enhance the protective safety performance. 

5. High technical performance: Main parameters reach the advanced level at home.

主要技術(shù)參數(shù)  The main technical parameters

直母線額定工作電流： 單面或雙面操作的抽出式 MCC 為 800A，柜深 1000mm 單面操作的 MCC 為 800~2000A。

Rated working current of vertical bus bar: Draw-out type MCC with single side or double sides operation: 800A. MCC with 1000mm depth and single operation: 800~2000A.

使用環(huán)境條件  Use environmental conditions

1. 周圍空氣溫度不高于 +40℃，不低于 -5℃，并且 24h 內(nèi)其平均溫度不高于 +35℃。 

2. 大氣條件：空氣清潔，相對濕度在高溫 +40℃時不超過 50%，在較低溫度時允許有較高的相對濕度，例如 +20℃時為 90%，但應(yīng)考慮到溫度變化， 有可能會偶然產(chǎn)生適度的凝露。 

3. 海拔高度不超過 2000m。 

4. 本裝置適應(yīng)于以下溫度的運輸和儲存過程：-25℃至 +55℃的范圍之間，在短時間內(nèi)（不超過 24h）可達(dá) +70℃，在這些限溫度下裝置不應(yīng)遭到任 何不可恢復(fù)的損傷，而且在正常的條件下應(yīng)能正常工作。 

5. 如果上述使用條件不能滿足時，應(yīng)由用戶和制造廠協(xié)商解決。 

6. 當(dāng)本裝置使用于海上石油鉆采平臺和核電站時，應(yīng)另簽訂技術(shù)協(xié)議。

1. Ambient air temperature: -5℃ ~+40℃ and the average temperature should not exceed +35℃ in 24h. 

2. Air condition: With clean air. Relative humidity should not exceed 50% at +40℃ . Higher relative humidity is allowed at lower temperature. Ex. 90% at +20℃ . But in view of the temperature change, it is possible that moderate dews will produce casually. 

3. Altitude above sea level should not exceed 2000M. 

4. The device is suitable to the transportation and store with following temperature :-25℃ ~+55℃ , in short time (within 24h) it reaches +70℃ . Under the limiting temperature, device should not suffer damage that can't recover, and it can works normally under normal conditions. 5. If the above operating conditions not meet user's demand. Consult with manufactory. 6. Technical agreement should be signed additionally if the device is used for marine petrol drill taken platform and nuclear power station.

結(jié)構(gòu)特點   Structural features

裝置的基本柜架為組合式裝配結(jié)構(gòu)，柜架的基本結(jié)構(gòu)件都經(jīng)過鍍鋅處理，通過自攻鎖緊螺釘或 8.8 級方角螺絲緊固互相連接成基本柜架，再按方 案變化需要，加上相應(yīng)的門、封板、隔板、安裝支架，以及母線、功能單元等零部件，組裝成一臺完整的裝置。裝置內(nèi)零部件尺寸，隔室尺寸實行模 數(shù)化（模數(shù)單位 e=25mm）。

The basic cabinet of device is combined assembly structure. Basic structural pieces of cabinet is zinc plated, connected and firmed into basic bracket through self tappinglocking screw or 8.8 grade square corner screw. According to the change demand of project, additionally add corresponding gate, closing board,baffle plate, installationsupport and the components of bus bar, function units, to assemble a complete set of device. Perform modulus to interior component and compartment size (Modulus unite=25mm).

內(nèi)部結(jié)構(gòu)  Internal structure