mosfet solid state high frequency welder

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Quick Details

  • Type: Other

  • Place of Origin: Hebei, China (Mainland)

  • Brand Name:CNBM Group

  • Model Number: GGP100-0.45-H

  • Voltage: 450V

  • Current: 220A

  • Weight: 1T-1.5T

  • Usage: pipe welding

  • Certification: ISO9001

  • After-sales Service Provided: Engineers available to service machinery overseas

  • Frequency: 400-450Hz

  • The whole efficiency: more than 85%

  • Pipe: 16-45mm

  • Thickness: 0.6~1.5mm

  • Speed: 60~100m/min

  • Welding mode: Induction welding

  • Cooling way: water-water or air-water

  • Maintenance: easy & low cost

  • color: white or blue

Packaging & Delivery

Packaging Details:1. Standard export wooden package. 2. Fumigated seaworthy wooden boxes 3. Upper/lower back angles for lifting 4. Mark as customer's requirement 5. Follow customer's packing standard 6. 20GP or 40GP container (for reference)
Delivery Detail:20 days

Specifications

Power saving &efficiency
Stable and continous working;
Full digital control system
HMI and fault diagnosis system

mosfet solid state high frequency welder

 

The whole set of solid state H.F. welder comprises of switchgear rectifying cabinet, inverter output cabinet, 

connecting optical fiber, circulation soft water cooling system, central operator console, mechanical adjustment device, 

contact welding pole plate and contact pin (contact welding) and etc .

 

 

Functional structure

 

The solid state high frequency equipment mainly used for HF welded steel pipe line, it is a typical AC-DC-AC variable frequency structure. Rectifier adopts 3-phase bridge style thyristor phase-control rectifier circuit, DC side adopts inductor, capacitor to compose LC filter which meet the working requirements of voltage type inverter. The voltage type inverter adopts modularization parallel structure to extend power supply power, each inverter module is single phase MOSFET bridge style circuit connected with series resonance tank circuit by H.F. matching transformer. On one hand, the matching transformer realizes power combination and impedance matching; on the other hand it realizes electric isolation of load and power supply. To put effective and swift protection on over-current malfunction of voltage type inverter, our company introduces special and stable over-current protection circuit which guarantees safe and stable running of inverter.

 

 

Main Technical index

 

Model

AC input

Rated DC voltage

Rated DC current

Designed frequency

The whole efficiency

Operating state

GGP100-0.45-HC

3AC380V

50/60Hz

450V

220A

400~450 kHz

≥85%

continuous

 

 

 

Model selection reference

 

 

Model

Specification

Welding pipe type

Typical welding speed

Welding mode

Cooling way

Remarks

GGP100-0.45-HC

Steel pipe specification:φ16-φ45mm

pipe thickness: 0.6~1.5mm

Round pipe

Rectangular tube

special pipes

60~100m/min

Induction welding

water-water

air-water

steel pipe

stainless pipe

aluminium pipe

 

 Picture show

 

Switchgear rectifying cabinet

 

Designed with integration of switchgear cabinet and rectifying part, besides achieving switchgear cabinet functions, it also has rectifying control functions of solid state H.F. welders.

 

 

 

Installed line-in switch, line-in current meter, voltage meter (can be switched) and line-in voltage indication lamp.

 

Installed 3-phase full-controlled thyristor Rectification Bridge to realize power adjustment of the HF welder.

 

Installed flat-wave reactor, flat-wave capacitor and filter to improve the flat-wave coefficient.

 

 

 

Inverter output cabinet

The inverter part is consisted of MOSFET single-phase inverter bridge connected in parallel. The power of single-phase bridge is 120kW; the inverter bridge adopts the building block method to realize power superposition. Every piece of bridge plates is designed in the shape of a drawer, which is very easy to install and repair.

The matching transformer is adopted for power combination, also it adopts the output method by of secondary resonance and non-welding transformer, tank circuit resonance capacitor (low voltage) resonates with the sensor directly, and the output pole plate offers required power transmission for pipe welding.

Adopted sealed equipment case, installed with air conditioner.

 

 

 

 

Central operation console

It realizes solid state H.F. welder remote operation and power regulation, installed with LCD which indicates armature voltage, field voltage indication and of DC drive and DC voltage, DC current indication of H.F. welders.

 

Circulation soft water cooling system

Airwater heat exchanger is adopted. And circulation soft water is used as cooling water with temperature and water level indicator and protection.

 

Mechanical adjustment device

Applied to install inverter output cabinet and adjust inductor position. 2D and 3D adjustable.

 

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