Ads by Google
1. Applied Range
Steel pipe specification: Round pipe: φ355~φ610mm
Square pipe: 300×300mm~500×500mm
Steel pipe thickness: 4.0~20.0mm
Welding pipe type: Round pipe/square pipe/rectangular pipe
Welding mode: Induction welding/Contact welding
Typical welding speed:
For square pipe: 300×300×16mm, adopts induction welding mode, welding speed: ≥15m/min
For square pipe: 300×300×16mm, adopts contact welding mode, welding speed: ≥25m/min
For square pipe: 500×500×20mm, adopts contact welding mode, welding speed: ≥15m/min
2. Main Technical Index of 1000kW Solid State H.F. Welder
( 1 ) Designed parameters
Nominal power: 1200kW
Rated DC power: Pd=1440kW
Rated DC voltage: UdN=450V
Rated DC current: IdN=3200A
The whole efficiency: η≥85%
Output power: Pout > 1000kW
Designed frequency: f=150~250kHz
MOSFET inverter: 120kW×12
Tank circuit output mode: no welding transformer output, secondary resonance
( 2 )Power distribution requirements
Nominal power: 1200kW
Rated DC power: Pd=1440kW
Line-in power factor: COSφ≥0.85
Power distribution capacity: S≤1700kVA
Power supply voltage: 3-phase 380V/50Hz
Line-in current: I=2610A
Line-in cable: each phase adopts four pieces of 300mm2 copper cable connected in parallel, 3-phase 4-line
( 3 ) 1200kW:
a. for switchgear rectifying cabinet 1set
With the adoption of water-water heat exchanger
Pressure of inner circulation water: 0.15~0.25MPa
Flow of inner circulation water: 18m3/h
Temperature of inner circulation out water: ≤40°C
Temperature of inner circulation back water: ≤55°C
Heat exchanger area: 9m2
Flow of external circulation water: 20m3/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: ≥20m3(provided by user)
b. for inverter output cabinet 1set
With the adoption of water-water heat exchanger
Pressure of inner circulation water: 0.15~0.25MPa
Flow of inner circulation water: 58m3/h
Temperature of inner circulation out water: ≤40°C
Temperature of inner circulation back water: ≤55°C
Heat exchanger area: 30m2
Flow of external circulation water: 100m3/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: ≥100m3(provided by user)
GGP1200KW solid state HF steel tube welder