ZSHC-IGBT HESW-1-800KW HIGH EFFICIENCY SWITCH WELDER
1. Composition
The whole set of 800kW IGBTHigh Efficiency Switch Welder is composed of DC power unit, inverter output unit, central control unit, water-water heat exchange unit
2. Technical Parameter
a. Rated output power: 800KW
b. Rated DC voltage: UdN=230V
c. Rated DC current: IdN=4000A
d. Output frequency: f=200KHZ
e. Efficiency: η≥90%
f. Power factor: ≥0.96
g: Ripple coefficient: <1%
h. Power distribution capacity:800KVA
i. Input voltage: Three phase 360-440V/50/60Hz,6% linearity
j. Incoming line rated current: 800A
k.Cooling water pressure:0.25MPa
l.Cooling water flow:50m3/h
m:Input water temperature:<35°C
3. Features of High Efficiency Switch Welder
.The high-efficiency switch welder (all-in-one machine) is mainly composed of full-bridge rectifier, filter, modular power module (consisting of high-power IGBT and other power devices), secondary rectifier circuit, inverter circuit (consisting of MOS pipe), load and other components.
The high-efficiency switch welder (all-in-one machine) owns the following obvious features of significant energy conservation, good welding quality, small size, easy maintenance, low failure rate, and low maintenance cost, etc.
3.1 High EfficiencyHigh EfficiencyHigh Efficiency
Comparing to traditional solid state welder, save power for 15%-25%.
3.2 Less Area Covered
Saving 60% area than traditional solid state welder.
3.3Small harmonic interference, no pollution to the power grid
With the transformer, RC and LC filter network, the harmonic of solid state H.F welder is small.When solid state H.F welder operates at full power, the power factor can reach 0.9 or more.
3.4 Easy Installation
Comparing to the 5-7 days for traditional solid state welder installation, high efficiency switch welder installation is 1 day.
3.5 Less installation cost
For example 100kw solid state welder, the traditional welder installation cost is around USD800(purchasing cable, nozzles, cable bridge and brackets), moreover, welder room or elevated platform is necessary, all the cost will be about USD800-1600.
3.6 Better Welding Quality
Benefitted from PWM precise control voltage and three level of filtering, the voltage output is stable, ripple coefficient is 50% lower than solid state welder. The welding quality is obviously better than traditional solid state welder.
Note: traditional solid state welder ripple coefficient is 4%, high efficiency switch welder is 2%.
4.Advantages Comparison
|
|
high efficiency
switch welder
|
solid state
welder (Europe)
|
solid state
welder (America)
|
Solid state welder (in Series)
|
solid state
welder (in Parallel)
|
|
Rectifier transformer
|
No
|
No
|
Yes
|
No
|
Yes
|
|
Rectifier components
|
Diode
|
Diode
|
SCR
|
SCR
|
SCR
|
|
Inverter bridge output
|
Direct output
|
Transformer output
|
Direct output
|
Transformer output
|
Direct output
|
|
All in one design
|
Yes
|
No
|
No
|
No
|
No
|
|
Installation cost
|
Low
|
High
|
High
|
High
|
High
|
|
Energy consumption
|
Low
|
Low
|
Relatively high
|
High
|
High
|
|
Ripple
|
Low
|
Low
|
High
|
High
|
High
|
|
Power factor
|
High
|
High
|
Low
|
Low
|
Low
|
