Loading Port:Tianjin
Payment Terms:TT OR LC
Min Order Qty:-
Supply Capability:30 sets set/month
1. Applied Range
Steel pipe specification: φ45~φ89mm
Steel pipe thickness: 1.5~4.0mm
Welding pipe type: Round pipe/square pipe/rectangular pipe
Welding mode: Induction welding
Typical welding speed: 30~100m/min
2. Main Technical Index of 250kW Solid State H.F. Welder
( 1 )Designed parameters
Nominal power: 250kW
Rated DC power: Pd=300kW
Rated DC voltage: UdN=450V
Rated DC current: IdN=670A
The whole efficiency: η≥85%
Output power: Pout > 250kW
Designed frequency: f=300~350kHz
MOSFET inverter: 60kW×5
Tank circuit output mode: no welding transformer output, secondary resonance
( 3 ) Power distribution requirements
Nominal power: 250kW
Rated DC power: Pd=300kW
Line-in power factor: COSφ≥0.85
Power distribution capacity: S≤350kVA
Power supply voltage: 3-phase 380V/50Hz
Line-in current: I=540A
Line-in cable: each phase adopts 240mm2 copper cable, 3-phase 4-line
(3 ) 250kW:
With the adoption of water-water heat exchanger
Pressure of inner circulation water: 0.15~0.25MPa
Flow of inner circulation water: 21m3/h
Temperature of inner circulation out water: ≤40°C
Temperature of inner circulation back water: ≤55°C
Heat exchanger area: 12m2
Flow of external circulation water: 25m3/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: ≥25m3(provided by user)
