Who knows why the switching time for PC-grade dual-power switching has to be less than 5ms
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As the title suggests, what is the principle behind this? Why don’t 6ms or 8ms work? Is it due to the 50Hz AC electricity?
Sometimes it will stop when it’s greater than 6ms or 8ms!
The best performance for the switching time of fast-acting high-speed switches is also 20 ms, and the load on site is switched over without any disturbances; it has never been possible to achieve a switching time of less than 10 ms
It should use principles like thyristors or something similar! Hard switching can’t achieve it!
It is mainly to consider the time required for the contactor to release after power loss