結構特點

Structural characteristics

柜體材質：基本骨架為組合裝配式結構，柜體封板采用高質量的冷軋鋼板，框架、內隔板及功能單元多采用進口敷鋁鋅鋼板，其余金屬結構件經鍍鋅防腐處理。

Cabinet material: The basic skeleton is a combination assembly structure, and the cabinet cover plate is made of high-quality cold-rolled steel plate. The frame, inner partition, and functional units are mostly made of imported aluminum zinc coated steel plate, and the remaining metal structural components are treated with galvanizing and anti-corrosion.

基本單元：以 8E（E=25mm）為基本單元，功能單元有 8E/4、8E/2、6E、8E、12E、16E、24E、32E、72E 等多種規格，一臺 MCC 柜多可布置 36 個功能單元，能實現 PC、MCC 混裝。

Basic Unit: Based on 8E (E=25mm) as the basic unit, there are various specifications of functional units such as 8E/4, 8E/2, 6E, 8E, 12E, 16E, 24E, 32E, 72E, etc. One MCC cabinet can accommodate up to 36 functional units and can achieve mixed PC and MCC.

柜體分隔：開關柜內每個柜體分隔為水平母線隔室、功能單元隔室及電纜室，室與室之間用高強度阻燃塑料功能板和敷鋁鋅板隔開。

Cabinet division: Each cabinet in the switchgear is divided into horizontal busbar compartment, functional unit compartment, and cable compartment. The compartments are separated by high-strength flame-retardant and environmentally friendly plastic functional boards and aluminum zinc coated boards.

工作原理

working principle

電能分配原理：通過主母線將電源引入柜體，再經分支母線分配到各個抽屜式或固定式功能單元，實現對不同負載的供電。

Power distribution principle: The power is introduced into the cabinet through the main busbar, and then distributed to various drawer or fixed functional units through branch busbars to achieve power supply to different loads.

控制與保護原理：功能單元內配置斷路器、接觸器、熱繼電器等電器元件。當電路發生過載、短路等故障時，斷路器自動跳閘切斷電路；熱繼電器在電動機過載時，根據電流大小和時間關系，經過一定延時后動作，使接觸器分閘，保護電動機；接觸器則用于控制電路的通斷，實現對負載的啟停控制。

Control and protection principle: Electrical components such as circuit breakers, contactors, and thermal relays are configured within the functional unit. When the circuit experiences overload, short circuit or other faults, the circuit breaker automatically trips and cuts off the circuit; When the motor is overloaded, the thermal relay operates after a certain delay based on the current magnitude and time relationship, causing the contactor to open and protecting the motor; Contactors are used to control the on/off of circuits and achieve on/off control of loads.

技術參數

technical parameter

額定絕緣電壓：660V、690V 等。

Rated insulation voltage: 660V, 690V, etc.

額定工作電壓：380V、660V 等。

Rated working voltage: 380V, 660V, etc.

主母線工作電流：5500A（IP00）、4700A（IP30）。

The maximum working current of the main busbar is 5500A (IP00) and 4700A (IP30).

主母線短時（1S）耐受電流：100KA（有效值）。

Short time (1S) withstand current of the main busbar: 100KA (effective value).

主母線短時峰值電流：250KA（值）。

Short term peak current of the main busbar: 250KA (maximum value).

配電母線（垂直母線）工作電流：1000A。

Maximum working current of distribution busbar (vertical busbar): 1000A.

防護等級：IP30 對大于 φ2.5mm 固體防護；IP40 對大于 φ1.0mm 固體防護；IP54 對塵埃和任意方向噴濺作防護。

Protection level: IP30 for solid protection larger than 2.5mm; IP40 provides protection for solids larger than 1.0mm in diameter; IP54 provides protection against dust and splashes in any direction.

應用場景

Application scenarios

工業領域：在鋼鐵、石化、電力、機械制造、輕工、礦山等工廠和工礦企業中，用于車間、變電站等場所的電力分配和電動機控制。

In the industrial field, it is used for power distribution and motor control in workshops, substations, and other places in factories and mining enterprises such as steel, petrochemicals, electricity, machinery manufacturing, light industry, and mining.

商業領域：適用于商業中心、購物中心、寫字樓等建筑，為照明、空調、電梯等設備提供電力分配和控制。

Commercial field: Suitable for commercial centers, shopping centers, office buildings and other buildings, providing power distribution and control for lighting, air conditioning, elevators and other equipment.

民用建筑：可應用于高層住宅、醫院、學校等，滿足居民生活用電、醫療設備供電、教學設備用電等需求。

Civil buildings: can be applied to high-rise residential buildings, hospitals, schools, etc., to meet the needs of residents' daily electricity, medical equipment power supply, teaching equipment power supply, etc.

其他領域：還廣泛應用于鐵路、機場、碼頭等交通樞紐，以及核電站等特殊場所。

Other fields: It is also widely used in transportation hubs such as railways, airports, and ports, as well as special places such as nuclear power plants.

維護要點

Maintenance points

定期清潔：每隔 3 個月對配電柜進行一次清潔，使用干凈的軟布或毛刷柜體表面灰塵，用吸塵器柜體內部灰塵。

Regular cleaning: Conduct a comprehensive cleaning of the distribution cabinet every 3 months, using a clean soft cloth or brush to remove dust on the surface of the cabinet, and using a vacuum cleaner to remove dust inside the cabinet.

緊固連接：每年少進行一次的緊固檢查，使用力矩扳手對母線連接螺栓、開關接線端子、電纜接頭等部位進行緊固。

Tightening connection: Conduct a comprehensive tightening inspection at least once a year, using torque wrenches to tighten the busbar connection bolts, switch terminals, cable joints, and other parts.

元件校驗：定期對配電柜內的保護電器元件如斷路器、熱繼電器、熔斷器等進行校驗，校驗周期一般為 1-2 年。

Component verification: Regularly verify the protective electrical components such as circuit breakers, thermal relays, fuses, etc. inside the distribution cabinet, with a verification cycle of generally 1-2 years.

功能測試：每半年進行一次抽屜單元的機械聯鎖功能測試，同時對操作手柄、按鈕等控制元件進行功能測試。

Functional testing: Conduct mechanical interlocking function testing of drawer units every six months, and also perform functional testing on control components such as operating handles and buttons.

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