秦皇岛施耐德交流接触器 湖南施耐德接触器批发

无噪音：
??交流器合闸保持是靠线圈通电使硅钢片产生电磁力，使动静硅钢片吸合，当电网电压不足或动静硅钢片表面不平整或有灰尘、异物等时，就会有噪音产生。而永磁交流器合闸保持是依靠永磁力来保持的，因而不会有噪音产生。
??③. 无温升：
??器依靠线圈通电产生足够的电磁力来保持吸合，线圈是由电阻和电感组成的，长期通以电流必然会，另一方面，铁芯中的磁通穿过也会产生热量，这两种热量在器共同作用，常使器线圈烧坏，同时，主触头容量。而永磁交流器是依靠永磁力来保持的，没有维持线圈，自然也就没有温升。
??④. 触头不振颤：
??交流器的吸持是靠线圈通电来实现的，吸持力量跟电流、磁隙有关，当电压在合闸与分闸临界状态波动时，器处于似合似分状态，便会不断地振颤，造成触头熔焊或烧毁，而使电机烧坏。而永磁交流器的吸持，完全依靠永磁力来实现，一次完成吸合，电压波动不会对永磁力产生影响，要么处于吸合状态，要么处于分闸状态，不会处于中间状态，所以不会因振颤而烧毁主触头，烧坏电机的可能性就大大。
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接触器
接触器分为交流接触器（电压AC）和直流接触器（电压DC），它应用于电力、配电与用电场合。接触器广义上指工业电中利用线圈流过电生磁场，使触头闭合，以达到控制负载的电器。作用：在电工学上，因为可快速切断交流与直流主回路和可频繁地接通与大电流控制（达800A）电路的装置，所以经常运用于电动机做为控制对象﹐也可用作控制工厂设备﹑电热器﹑工作母机和各样电力机组等电力负载，接触器不仅能接通和切断电路，而且还具有低电压释放保护作用。接触器控制容量大，适用于频繁操作和远距离控制,是自动控制系统中的重要元件之一。在工业电气中其用处相当广泛。
Reference
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首先应该知道交流器的原理。他是用外界电源来加在线圈上，产生电磁场。加电吸合，断电后点就断开。知道原理后，你应该弄清楚外加电源的接点，也就是线圈的两个接点，一般在器的下部，并且各在一边。其他的几路输入和输出一般在上部，一看就知道。还要注意外加电源的电压是多少（220V或 380V），一般都标得有。并且注意点是常闭还是常开。如果有自锁控制，根据原理理一下线路就可以了。
施耐德系列LC1D300M7C器
型号划分??在电工学上。器是一种用来接通或断开带负载的交直流主电路或大容量控制电路的自动化切换器，主要控制对象是电动机，此外也用于其他电力负载，如电热器，电焊机，照明设备，器不仅能接通和切断电路，而且还具有低电压释放保护作用/。器控制容量大。适用于操作和远距离控制。是自动控制中的重要元件之一。通用器可大致分以下两类。
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（1）额定电流接触器触点在额定工作条件下的电流值。380V三相电动机控制电路中，额定工作电流可近似等于控制功率的两倍。常用额定电流等级为5A、10A、20A、40A、60A、100A、150A、250A、400A、600A。（3）通断能力可分为大接通电流和大分断电流。大接通电流是指触点闭合时不会造成触点熔焊时的大电流值；大分断电流是指触点断开时能可靠灭弧的大电流
应用范围1、工业，基础设施，建筑2、Tesys D接触器可以用于任何需要电动机起动器的场合周围空气温度为：-5℃～+40℃。内其平均值不**过+35℃；海拔高度：不**过2000m；大气条件：在+40℃时空气相对湿度不**过50%，在较低温度下可以有较高的相对湿度，湿月的月平均低温度不起过+25℃，该月的月平均大相对湿度不**过90%，并考虑因温度变化发生在产品上的凝露。安装类别：Ⅲ类；污染等级：3级；安装条件：安装面与垂直面倾斜度不大于±5°；
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