| Welding Range: | According to Customer Requests |
|---|---|
| Cooling Way: | Water Cooling |
| Control: | Automatic |
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Advanced Solid State High Frequency Welder For Round Tube Rolling Mill
Technological index
Power scope: 60kW-2000kW
Frequency scope: 100kHz-20000kHz
Rated DC voltage: 10000V-15000V
Power grid voltage: 220V~660V,50/60Hz,3-phase
| Description | Composition / Model | Qty. |
| solid state H.F. welder | Switchgear rectifying cabinet | 1 |
| Inverter output cabinet | 1 | |
| Central operation console | 1 | |
| Connecting optical fiber | 1 | |
| Mechanical adjustment device | 1 | |
| Water-water cooling system | 1 |
Composition and Brief Introduction for Solid State H.F. Welder
The whole set of solid state H.F. welder is composed of switchgear rectifying cabinet, inverter output cabinet, connecting optical fiber, circulation soft water cooling system, central operation console, mechanical adjustment device.
1 Switchgear rectifying cabinet
Designed with integration of switchgear cabinet and rectifying part, except 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.
2 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 inductor directly, and the output pole plate offers required power transmission for pipe welding;
Adopted sealed equipment case, installed with air conditioner.
3 Connecting optical fiber
Switchgear rectifying cabinet and inverter output cabinet are connected with optical fiber to make sure control system can not be disturbed by high frequency signal, which enhances the reliability of equipment.
4 Circulation soft water cooling system
Water-water cooling system adopts plate type heat exchanger for the cooling of switchgear rectifying cabinet, inverter output cabinet, resonance tank circuit etc with designing of indication and protection of temperature and water level.
5 Central operation console
It realizes the functions of remote operation, power adjustment, status monitoring and malfunction diagnosis for solid state H.F. welder.
Mounted with HMI composed of PLC and LCD touch screen, which is easy to be operated and monitored by user at site.
Installed with various AC and DC meters and operation buttons for the working status display for the welder.
6 Mechanical adjustment device
For inverter output cabinet installation and inductor position adjustment.
Technical features
1. Display instrument digitization
2. Full digital rectifying control board
3. All digital inverter control board
4. Closed loop technology of speed power
5. Ethernet networking technology
6. Cloud control technology (optional)
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