Baoding ZSHC Electrical Co., LTD.

The high efficiency switch welder is featured by obvious energy saving, high quality of welding seam, small size, easy maintanence, low failure rate, and low maintanence cost.

High efficiency switch welder is specially designed for straight seam welding of the steel tube. It is current type parallel step up resonance circuit composed by transistor inverter of module power unit by IRFP460, DSEI60-06A fast recovery, rectifier diodes, large power IGBT and such power components, tank circuit capacitance C and the inductive coil L. This circuit adapts well to low load impendance of H.F welding. No output transformer needed. Thus achieves the high efficiency and the whole machine realibility.

Multiple and sensitive protection ensures the safe operation of the welding machine.

Commissioning Preparation

a. Cooling System,water pipe connection done.

b. The power incoming line of the welding machine is connected.

c. The main Control cable connection between Cooler, Central Control Table, Welding Machine finished.

d. The grounding device required by the Main Machine (inverter cabinet) is completed and the wiring is completed

Commissioning Steps

Make sure the Direction of rotation of cooling water pump is correct, the water pressure of the welder is correct(>0.2MP).

Welder commissioned on DC Voltage 10V, Use Oscilloscope check the waveform and Use the multimeter test the DC voltage between 4V+ and 3V-,

Set the welder initial voltage at 25V, Use the Oscilloscope checking the waveform and Use Multimeter test the DC voltage between 4V+ and 3V-.

Adjust the heating potentiometer on Control Table, make the voltage to 50V, use oscilloscope checking the waveform, make it smooth.

Record the welder running data

a. DC Voltage

b. DC Current

c. Frequency

d. Pipe diameter range

e. Pipe thickness range