Alternating current welding machine power supply control system

Abstract

The invention discloses an alternating current welding machine power supply control system. The alternating current welding machine power supply control system comprises a detection unit and a controlcircuit. The detection unit comprises an undercurrent relay KA for detecting primary currents of an electric welding machine. The control circuit comprises a stop button SB1, a start button SB2, a time relay KT, a contactor KM and a wireless remote controller. The stop button SB1 is connected to a primary road of the control circuit in series, the start button SB2, a normally-closed contact of the time relay KT and a coil of the contactor KM are connected in series to serve as a first branch of the control circuit, a main contact of the contactor KM is connected to a main circuit of the electric welding machine in series, a receiver of the wireless remote controller, a contact of the undercurrent relay KA and a coil of the time relay KT are connected in series to serve as a second branchof the control circuit, the first branch and the second branch are connected in parallel, and a self-locking contact of the contactor KM is connected with the start button SB2 and the receiver of thewireless remote controller in parallel. According to the system, the electric welding machine not used for a long time can be automatically shut down, and the electric welding machine in a shutdown state can be awakened through the wireless remote controller.

Description

technical field [0001] At least one embodiment of the present disclosure relates to a power control system for an AC welding machine. Background technique [0002] In engineering construction, electric welding machines are one of the most commonly used equipment. In some large-scale steel structure projects, there are even hundreds of electric welding machines working at the same time. The electric welding machine uses the high-temperature arc generated when the positive and negative poles are short-circuited instantaneously to melt the solder and the material to be welded on the electrode to achieve the purpose of welding. The instantaneous short-circuit current generated by the electric welding machine is large, and it is a large power consumer in the construction site. A single electric welding machine is bulky and heavy, and it is inconvenient to move. Most electric welding machines are centrally placed next to the temporary power distribution box, and centralized power...

AI Technical Summary

Problems solved by technology

A single electric welding machine is bulky and heavy, and it is inconvenient to move. Most electric welding machines are centrally placed next to the temporary power distribution box, and centralized power is taken from the temporary power box.

Intermittent welding is the biggest feature of electric welding machine. When the welder is welding at a high place, or takes a short rest during welding, or waits for the completion of the previous process, it is inconvenient to turn off the welding machine, which causes The welding machine is empty for a long time, wasting electricity

Images