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电焊机加装空载自停装置,其作用是在焊接停止时,自动切断焊机电源,使焊机停焊时不再消耗电能。但是,节电量为多少?经济性如何?本文仅就这一问题作了简单分析。对目前节电量说法的分析一种观点认为,加装自停装置后,每小时能节电10度左右。其理由是:一般21千伏安电焊机不加自停装置每小时耗电为21度,加装后有近50％时间不用电,即可节电10度。无疑这种说法是错误的,因为焊机空载时耗电量远远低于工作时用电量,不能混为一谈。
Welding machine installed no-load self-stop device, its role is to stop the welding, the automatic cut off the power supply, welding machine stop welding power consumption no longer. However, how much power saving and economy? This article only on the issue made a simple analysis. Analysis of the current power-saving argument A view that the installation of self-stop device, the energy can be saved about 10 degrees per hour. The reason is: general 21 kVA electric welder without stop device consumes 21 degrees per hour power consumption, installed nearly 50% of the time without electricity, you can save 10 degrees. Undoubtedly this argument is wrong, because the welder no-load power consumption is much lower than the work of electricity, can not be confused.