Brief Introduction; Working Principle; Welding Electrodes Specifications; Duty Cycle - Vector Welding ARC Serie Mode D'emploi

Summary

2.1 Brief introduction

ARC 200G, ARC 200K welding machines adopts the latest pulse width modulation (PWM)
technology and insulated gate bipolar transistor (IGBT) power module, which can change work
frequency to medium frequency so as to replace the traditional hulking work frequency
transformer with the cabinet medium frequency transformer. Thus its characterized with
portable, small size, light weight, low consumption and etc.

2.2 Working principle

The working principle of ARC 200G, ARC 200K welding machines is shown as the following
figure. Single-phase 230V work frequency AC is rectified into DC(about 312 V), then is
converted to medium frequency AC (about 20-40KHz) by inverter device (IGBT module), after
reducing voltage by medium transformer (the main transformer) and rectifying by medium
frequency rectifier (fast recovery diodes),then is outputted DC .The circuit adopts current feedback
control technology to insure current output stably. Meanwhile, the welding current parameter can
be adjusted continuously and steplessly to meet the requirements of welding craft.
230V

2. 3 Welding electrodes specifications

Adjust knobs of welding current , make welding current is adequate to welding electrode
according with as following:
φ2.5
Standard
Welding current
70-100A

2.4Duty cycle

The rated duty cycle of a Welding Power Source is a statement of the time it may be
operated at its rated welding current output without exceeding the temperature limits of the
insulation of the component parts. To explain the 10 minute duty cycle period the following
example is used. Suppose a Welding Power Source is designed to operate at a 20% duty
cycle, 200 amperes at 28 volts. This means that it has been designed and built to provide
the rated amperage (200A) for 4 minutes, i.e. arc welding time, out of every 10 minute
period (20% of 10 minutes is 4 minutes). During the other 6 minutes of the 10 minute period
the Welding Power Source must idle and be allowed to cool.
29
ARC SERIES EQUIPMENT
φ3.2 φ4.0 φ5.0
110-140A 170-230A 230-280A
ARC SERIES EQUIPMENT
100
90
80
70
60
50
40
30
Safe
Operating
20
Region
10
0
0 100 120 140 160
Welding Current(AMPS)

2.5 Specifications

Description
ARC 200G
Weight 2.4kg
size(LxWxH) 225x97x170
Cooling Fan Cooled
Multi Process Inverter
Welder Type
Power Source
European Standards EN 60974-1 / IEC 60974-1
1 x 230 Volt ±15%
Mains voltage
Grid frequency
50/60Hz
Welding Current Range (WIG Mode)
10-200 A
Effective Input Current 16A
Maximum Input Current 35.8A
Single Phase Generator Requirement 10KVA
200A@ 20%28V
Duty cycle, 40°C, 10 min
89A@ 100%23.6V
Open Circuit Voltage
62V DC
Protection Class
IP23
Insulation Class H
NOTE
Due to variations that can occur in manufactured products, claimed performance, voltages,
ratings, all capacities, measurements, dimensions and weights quoted are approximate
only. Achievable capacities and ratings in use and operation will depend upon correct
installation, use, applications, maintenance and service.
Summary
180 200 220 240 260 280 300
ARC 200K
3.2kg
260x122x195
Fan Cooled
Multi Process Inverter
Power Source
EN 60974-1 / IEC 60974-1
1 x 230 Volt ±15%
50/60Hz
10-200 A
16 A
35.8A
10KVA
200A@ 20%28V
89A@ 100%23.6V
62V DC
IP23
H
320
30