1. Applied Range
lSteel pipe specification: Round pipe: φ165~φ219mm
Square pipe: 200×200mm~300×300mm
lSteel pipe thickness: 4.0~10.0mm
lWelding pipe type: Round pipe/square pipe/rectangular pipe
lWelding mode: Induction welding/Contact welding
lTypical welding speed:
uFor square pipe: 200×200×10mm, adopts induction welding mode, welding speed: ≥9m/min
uFor square pipe: 200×200×10mm, adopts contact welding mode, welding speed: ≥14m/min
uFor square pipe: 300×300×10mm, adopts induction welding mode, welding speed: ≥8m/min
uFor square pipe: 300×300×10mm, adopts contact welding mode, welding speed: ≥13m/min
2. Main Technical Index of 500kW Solid State H.F. Welder
Designed parameters
lNominal power: 500kW
lRated DC power: Pd=600kW
lRated DC voltage: UdN=450V
lRated DC current: IdN=1330A
lThe whole efficiency: η≥85%
lOutput power: Pout>500kW
lDesigned frequency: f=200~300kHz
lMOSFET inverter: 120kW×5
lTank circuit output mode: no welding transformer output, secondary resonance
Power distribution requirements
lNominal power: 500kW
lRated DC power: Pd=600kW
lLine-in power factor: COSφ≥0.85
lPower distribution capacity: S≤700kVA
lPower supply voltage: 3-phase 380V/50Hz
lLine-in current: I=1090A
lLine-in cable: each phase adopts two pieces of 240mm2 copper cable connected in parallel, 3-phase 4-line
Circulation soft water cooling system (air-water cooling system, GPKL-Ⅱ-1.75)
lCooling capacity: 150500kcal/h
lOutlet temperature: ≤40℃
lWorking flux: 30m3/h
lWorking pressure: 0.32Mpa
lWater tank capacity: 1300L
lRated power: pipe pump motor 7.5kW, spray pump motor 2.2kW, fan motor 3×0.75kW
lRated voltage: 3-phase 380V/50Hz
lNoise: ≤85dB
lWith water tank level indication and temperature display, low water level and over-temperature protection function
lDimension: 2800×1450×2200mm
