| 摘要 |
FIELD: mechanical engineering; welding. ^ SUBSTANCE: invention relates to welding arc supply sources and it can be used for welding in the field. Proposed welding set has generator, rectifier, welding electrodes, correcting link, pulse modulation unit, threshold unit and current regulator. Output of rectifier is connected with input of correcting link, output of current regulator and input of threshold unit. Output of correcting link is connected with input of pulse modulation unit, and outputs of pulse modulation unit and threshold unit are connected with input of current regulator. High economy, reliability and good characteristics of welding set are provided owing to positive voltage feedback forming dropping volt-ampere characteristic and operation of current regulator under pulse conditions. ^ EFFECT: provision of high economy, reliability and good technological properties of welding set. ^ 2 dwg |
