ABB 5SHX1445H0002 3BHL000387P0101 可控硅主板模块

ABB 5SHX1445H0002 3BHL000387P0101 可控硅主板模块

ABB 5SHX1445H0002 3BHL000387P0101 可控硅主板模块，是一种大功率电器元件，也称晶闸管。它具有体积小、效率高、寿命长等优点。在自动控制系统中，可作为大功率驱动器件，实现用小功率控件控制大功率设备。它在交直流电机调速系统、调功系统及随动系统中得到了广泛的应用。

ABB 5SHX1445H0002 3BHL000387P0101 可控硅主板模块分单向可控硅和双向可控硅两种。双向可控硅也叫三端双向可控硅，简称TRIAC。双向可控硅在结构上相当于两个单向可控硅反向连接，这种可控硅具有双向导通功能。其通断状态由控制极G决定。在控制极G上加正脉冲(或负脉冲)可使其正向(或反向)导通。这种装置的优点是控制电路简单，没有反向耐压问题，因此特别适合做交流无触点开关使用。

ABB 5SHX1445H0002 3BHL000387P0101 可控硅主板模块

ABB 5SHX1445H0002 3BHL000387P0101 thyristor mainboard module is a high-power electrical component, also known as thyristor. It has the advantages of small size, high efficiency and long life. In the automatic control system, it can be used as a high-power driving device to realize the control of high-power equipment with low-power control. It has been widely used in AC and DC motor speed control system, power regulation system and servo system.

ABB 5SHX1445H0002 3BHL000387P0101 thyristor mainboard module is divided into unidirectional thyristor and bidirectional thyristor two. Bidirectional thyristor is also called TRIAC, or TRIAC for short. The bidirectional thyristor is structurally equivalent to two unidirectional thyristors in reverse connection, and this thyristor has a dual pilot pass function. Its on-off state is determined by the control pole G. Adding a positive pulse (or negative pulse) to the control pole G can make it forward (or reverse) conduction. The advantage of this device is that the control circuit is simple and there is no reverse voltage problem, so it is particularly suitable for AC contactless switch use.

ABB 5SHX1445H0002 3BHL000387P0101 可控硅主板模块