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低压配电抽屉组成各部位的参数

发布时间:2023-04-08 来源:/ 浏览量:

动力配电中心(以下简称
Power distribution center (hereinafter referred to as
柜内分割成四个隔室:
The cabinet is divided into four compartments:
水平母线隔室:在柜的后部;功能单元隔室:在柜前上部或柜前左边;
Horizontal busbar compartment: at the rear of the cabinet; Functional unit compartment: located on the upper or left side of the cabinet front;
电缆隔室:在柜前下部或柜前右边;控制回路隔室:在柜前上部;
Cable compartment: located in the lower part or right side of the cabinet front; Control circuit compartment: located in the upper front of the cabinet;
分隔措施:水平母线隔室与功能单元隔室、电缆隔室之间采用三聚氰胺酚醛平心板或钢板分隔。
Separation measures: The horizontal busbar compartment is separated from the functional unit compartment and cable compartment using melamine phenolic flat core plates or steel plates.
控制回路隔室与功能单元隔室之间用阻燃型聚胺脂发泡塑料模制罩壳分隔。
The control circuit compartment and the functional unit compartment are separated by a flame-retardant polyurethane foam plastic molded cover.
左边的功能单元隔室与右边的电缆隔室之间用钢板分隔。
The functional unit compartment on the left is separated from the cable compartment on the right by steel plates.
抽出式电动控制中心和小电流的动力配电中心(以下简称为抽出式
Drawout electric control center and small current power distribution center (hereinafter referred to as drawout type)
MNS低压抽屉柜
抽出式MCC柜内分成三个隔室,即柜后部的水平母线隔室,柜前部左边的功能单元隔室,柜前部右边的电缆隔室。水平母线隔室与功能单元隔室之间用阻燃型发泡塑料制成的功能板分隔,电缆隔室与水平母线隔室、功能单元隔室之间用钢板分隔。
The withdrawable MCC cabinet is divided into three compartments, namely the horizontal busbar compartment at the rear of the cabinet, the functional unit compartment on the left front of the cabinet, and the cable compartment on the right front of the cabinet. The horizontal busbar compartment and functional unit compartment are separated by functional boards made of flame-retardant foam plastic, and the cable compartment is separated from the horizontal busbar compartment and functional unit compartment by steel plates.
可移式电动机控制中心和小电流动力配电中心(以下可简称为可移式
Portable motor control center and small current power distribution center (hereinafter referred to as portable)
可移式MCC的框体结构特征同2.1和2.2。
The frame structure characteristics of the movable MCC are the same as those in 2.1 and 2.2.
功能单元设计成可移式结构,功能单元与垂直母线的连接,采用一次隔离触头,即使与其连接的电路是带电的,也可以从设备中完整地取出和放回该功能单元,另一端为固定式结构。
The functional unit is designed as a movable structure, and the connection between the functional unit and the vertical busbar adopts a primary isolation contact. Even if the circuit connected to it is live, the functional unit can be completely removed and placed back from the equipment, and the other end is a fixed structure.
可移式MCC的功能单元分为8E/4,8E/2,8E,16E,24E,32E和40E。功能单元隔室总高度也是72E。
The functional units of portable MCC are divided into 8E/4, 8E/2, 8E, 16E, 24E, 32E, and 40E. The total height of the functional unit compartment is also 72E.
母线系统
Bus system
水平母线安装于柜后独立的母线隔室中,它有二个可选择的安装位置,即柜高的三分之一或三分之二处,母线可按需要装于上部或下部,也可以上下二组同时安装,二组母线可以单独使用,也可以并联使用。每相母线由2根或8根母线并联,母排截面有10×32×2,10×60×2,10×80×2,10×60×4,10×80×2×2和10×60×4×2 六种。
The horizontal busbar is installed in an independent busbar compartment behind the cabinet, with two optional installation positions, namely one-third or two-thirds of the cabinet height. The busbar can be installed on the upper or lower part as needed, or two sets of upper and lower buses can be installed simultaneously. The two sets of busbars can be used separately or in parallel. Each phase of the busbar is connected in parallel with 2 or 8 busbars, with a busbar cross-section of 10 × thirty-two × 2,10 × sixty × 2,10 × eighty × 2,10 × sixty × 4,10 × eighty × two × 2 and 10 × sixty × four × Two or six types.
垂直母线
Vertical busbar
垂直母线50×30×5的"L"型铜母线,它被嵌装于用阻燃型塑料制造的功能板中。带电部分的防护达IP20。
Vertical busbar 50 × thirty × The "L" type copper busbar of 5 is embedded in a functional board made of flame-retardant plastic. The protection of live parts reaches IP20.
中性母线(N线)和中性保护母线(PE线或PEN线)中性母线和中性保护母线平行地安装在功能单元隔室的下部和垂直安装在电缆室中,N线与PE线之间如用绝缘子相隔,则N线与PE线分别使用,二者之间如用导体连接,即成PEN线。
The neutral busbar (N line) and neutral protection busbar (PE line or PEN line) are installed parallel to the lower part of the functional unit compartment and vertically in the cable compartment. If insulators are used to separate the N line and PE line, they are used separately. If conductors are used to connect the two, they become PEN lines.
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