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近年来，我国用于电焊机上的晶闸管相关技术日臻成熟。然而，由于电焊机电源要经常地、反复地、有时甚至每秒几十次地经受大电流或短路的冲击，这对晶闸管（或其它电力电子器件）构成很大的威胁，因而如何进一步提高这类焊机的可靠性仍是一个不容忽视的问题。在调试或修理...
In recent years, China’s thyristor welding technology for the increasingly mature. However, since the power of the welding machine is often, repeatedly, and sometimes even tens of times per second, subjected to a large current or short circuit, this poses a great threat to the thyristors (or other power electronic devices), so how to further improve this Welding machine reliability is still a problem that can not be ignored. In debugging or repairing ...