GGP500KW solid state HF steel tube welder

GGP500KW is designed to weld steel Round pipe: 89~ 219 mm square tube: 200 x 200-300 X 300mm, thickness4.0- 10.0mm

1.  Applied Range

           Steel pipe specification: Round pipe: φ89~φ219mm

                                                        Square pipe: 200×200mm~300×300mm

           Steel pipe thickness: 4.0~10.0mm

           Welding pipe type: Round pipe/square pipe/rectangular pipe

           Welding mode: Induction welding/Contact welding

           Typical welding speed:

          For square pipe: 200×200×10mm, adopts induction welding mode, welding speed: ≥9m/min

          For square pipe: 200×200×10mm, adopts contact welding mode, welding speed: ≥14m/min

          For square pipe: 300×300×10mm, adopts induction welding mode, welding speed: ≥8m/min

          For square pipe: 300×300×10mm, adopts contact welding mode, welding speed: ≥13m/min

2.  Main Technical Index of 500kW Solid State H.F. Welder

 ( 1 )Designed parameters

           Nominal power: 500kW

           Rated DC power: Pd=600kW

           Rated DC voltage: UdN=450V

           Rated DC current: IdN=1330A

           The whole efficiency: η≥85%

           Output power: Pout  > 500kW

           Designed frequency: f=200~300kHz

           MOSFET inverter: 120kW×5

           Tank circuit output mode: no welding transformer output, secondary resonance

 ( 2 )Power distribution requirements

           Nominal power: 500kW

           Rated DC power: Pd=600kW

           Line-in power factor: COSφ≥0.85

           Power distribution capacity: S≤700kVA

           Power supply voltage: 3-phase 380V/50Hz

           Line-in current: I=1090A

          Line-in cable: each phase adopts two pieces of 240mm2 copper cable connected in parallel, 3-phase 4-line

 ( 3 ) 500kW:

           With the adoption of water-water heat exchanger

           Pressure of inner circulation water: 0.15~0.25MPa

          Flow of inner circulation water: 30m3/h

          Temperature of inner circulation out water: ≤40°C

          Temperature of inner circulation back water: ≤55°C

           Heat exchanger area: 20m2

           Flow of external circulation water: 50m3/h(provided by user)

          Temperature of external circulation inlet water: ≤35°C

          Temperature rise of heat exchanger external circulation water: ≤15°C

          Pressure of inlet water: 0.25~0.3MPa (approximately 2.5~3kg/cm2)

          Volume for external circulation water pool: ≥50m3(provided by user)

GGP500KW solid state HF steel tube welder