- Description
- Advantage
- Specifications
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The solid state high frequency welder integrated type consists of 5 parts: SCR all-wave rectifier, IGBT high frequency inverter +PWM voltage regulator, high frequency transformer, FRED quick recovery diode module high frequency rectifier, E-bridge inverter output.The rectifier +PWM AC voltage regulation is completed by one circuit board.PWM control unit board is embedded on the main board. Main functions of the unit board are completed by the single-chip computer +PWM control system. Voltage adjustment and feedback control are completed by combining with the double closed loop PI regulator of the main board.Alarm control by digital circuit as the control core combined with hardware fast response makes the protection action sensitive.
The solid-state high frequency welder integrated type adopts the full-wave rectification IGBT inverter regulation mode, and does not need the phase shift angle adjustment of SCR.Therefore, it has the advantages of high power factor and good power saving effect also reducing the cross section area of inputting cable.
The principle diagram
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Advantage comparison of integrated power supply and split SCR power supply:
With IGBT inverter power regulation, the control speed is more than 40 times faster than the SCR system, which can provide ideal precision heat control and extremely fast fault protection action, making the equipment more secure and reliable.
✦ Compare with SCR phase shifting control of 3-phase rectifier circuit, it has the following advantages
①When works in full range, the power factor is high, harmonic is small, and small harmonic interference to the grid .
②It has low reactive power loss and high power conversion efficiency, compared with the conventional solid-state high frequency energy saving of 15%.
③As SCR voltage regulating system needs separate layout, rectifier cabinet + transformer + inverter cabinet, for the big distance of each machines than the all in one integrated welder,also the line loss between the equipment is also a factor affecting energy consumption.
④ IGBT has the ability to turn itself off,when failure, power supply has better protection can be cut off in a very short time to avoid damage of inverter device.
⑤The input voltage range is wide and the output precision is high.
✦ Comparison of integrated welder and traditional separate welder
Parameters Comparison Split Type Integrated Type Installation Cover big area ,more time, more wires between each cabinet Cover small area ,fast install, no cabinet connect wires Controlled parts SCR IGBT Work frequency 50Hz 12KHz Control mode Phase shift trigger Invert power adjustment AC-DC efficiency <90%，Large reactive power loss ≥93% Power factor 0～0.90 , normally 0.75～0.8 Gamut above 0.93 Reactive power current on the grid side Big Small User power supply capacity utilization 70～80% 90% User power factor compensation capacitance Need No need Input voltage range allowed ±10% ±20% Network interference Big，Not easy to remove Small,easy to remove Fault protection speed Slower (ms) Faster (μs) Energy saving effect Better The best Compared with conventional solid-state HF welder energy saving is more than 15%.
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1.Technique Data of integrated welder
Design Parameters
⑴ Rated output power: 250KW
⑵ Rated DC voltage: UdN=235V
⑶ Rated DC current: 1250A
⑷ Out frequency: f=250~350kHz
⑸ Total efficiency: η≈90%
⑹ Resonance form: Compound resonance
⑺ Tank output form: No welding transformer output.
⑻ Ripple Coefficient: 0.5%(high energy control accuracy, suitable for welding of stainless steel, copper and aluminum pipes)
⑼ Welding mode: Induction welding
⑽ Power distribution capacity:350KVA
⑾ Input voltage: Three phase 380V/50Hz，3 phase 4 wire system
⑿ Rated input current: I=500A
2. Main scope of integrated welder
Consist of IGBT high frequency inverter,Operation console,Recycling Soft Water Cooling System,2D adjustable bracket ,Output Leg.
NO. ITEM QUANTITY NOTED 1 IGBT high frequency inverter 1 2 Operation console 1 3 Recycling Soft Water Cooling System 1 4 2D adjustable bracket 1 5 Output Leg 1
Production capabilities
We,BAODING GUDE ELECTRIC CO.,LTD,located in Baoding New Economic Industrial Zone,is engaged in research & development,manufacturing of induction heating equipment,as well as mechanical equipment.
GUDE WELDER is not only manufacture HIGH QUALITY machines,but also offer professional technical and AFTER-SALE service.Our company has CE standard.
GUDE Electric won a lot of domestic and overseas high frequency welder,tube mills,slitting lines with good reputation and quality.Our machines have been exported to Vietnam,Poland,Colombia,Mexico,Iran,Egypt,Jordan,Oman,Qatar,Ethiopia,SriLanka,Thailand,Malaysia,Cambodia,South Africa,Afganistan,Kazakhstan,Uzbekistan,Tajikistan etc.
We have branch offices in Vietnam,Iran,Egypt,South Africa,can give you best AFTER-SALE supports in time.
GUDE WELDER --- Your Best Choice !
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SGGP-250Kw Solid State H.F. Welder Integrated type
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E-Mail:amy@gd-hfwelder.com
Phone:+86 17736560288
WhatsApp:+86 17736560288
Address: Address:No. 5288,10-2,New Economic Industrial Zone,Lekai South Street,Qingyuan District,Hebei,China
