随着制造技术的不断提高,电焊机的各种性能不断改善,向着高效、节能方向发展。但我们发现各种类型的电焊机当其工作时,无一能够自动关闭其工作电源,避免空载运行。 电焊机空载运行,其铁耗增大,且长时间空载运行有不安全因素。在电焊机电源开关与电焊机相距较远的情况下,使用完电焊机不关闭工作电源就离开的现象时有发生,造成电焊机长时间通电空载运行。 With the continuous improvement of manufacturing technology, welding performance continuously improve, toward efficient, energy-saving direction. However, we found that none of the various types of welding machines automatically shut down their working power when they were working and avoided no-load operation. Welder running at no-load, the iron consumption increases, and long-term no-load operation with unsafe factors. In the welding machine power switch and the welding machine far away from the situation, the use of welding machine does not shut down the power supply to leave the phenomenon have occurred, resulting in a long time power welding machine no-load operation.