常开触点

第二种方法是采用小的永久磁铁使常开触点闭合在一起。

The second method uses a small permanent magnet to hold normally open contacts together .

互补隔离技术法为在输出二极管两个端子上并联功率电磁继电器的一对常开触点，并用冗余控制信号对触点的闭合或释放状态进行控制。

The technology approach of complementary isolation is that it makes a pair of normal open contacts of a power electromagnetic relay in parallel with two poles of the output diode , and adopts a redundancy control signal to control the contacts on closing or opening state .

继电器Ag镀Au常开触点热过程的计算模拟

Computer Analogue on Thermal Process of Relay Opening Contactor Au-plating of Ag

方法：将摄影高压预上闸接触器MAGSW&R的3对常开触点与3组反向并联的主可控硅连接次序对调。

Method : We exchange the conjunction sequence of three NO ( normal open ) contacting points of radiograph high voltage preparing work relay & MAG SW - R with three reverse parallel connection of main thyristors .