Power Supplies
General Information
Interpower Induction power supply units run on a wide range of frequencies, 50hZ to 250 kHz. They are designed to operate in the harshest of environments and will provide long-term, trouble-free operation.
The power transistor, called Insulated Gate Bi-Polar Transistor (IGBT ) allows absolute turn-on and turn-off even at high operating frequencies. The ability to turn off these devices at any time during the operating cycle makes this one of the most reliable systems on the market today. This technology allows for power, voltage, or current control. The power supply can run over a wide range of frequencies set by the configuration of the heat station. Interpower’s power supplies consist of the units along with a line disconnect switch, power components, solid-state controls, all operator controls, and safety devices.
- IGBT power operates at a range of frequencies with fewer coils and lower energy costs
- Solid-state units have advanced power and electronic controls
- Designed to perform in harsh environments with long term, trouble free operation
Details
Power Supply Range
5 to 10,000kW
Frequency Range
50 hertz to 250 kHz
I/O Analog Input
0-10V & 4-20ma
16 bit
Analog Output
0-10V & 4-20ma
16 bit PLC hardware
Technical Specifications
Ideal for many mid-frequency heating applications
Desired frequency maintained during heating cycle
Wide range of operating frequencies
Available with integral or remote heat station
HMI interface and meter display, with program control
Standard power: 25kW, 50kW, 75kW, 100kW, 150kW
PowerLink 3.0 was specially designed to replace the higher frequency SCR units.
Driver boards are fed with fiber optics
Diode front end and is Frequency swept
Operates between 100HZ to 10KHZ.
Standard power: 100kW, 250kW, 750kW, 1000kW
Power Requirements: 500kW = 740amps @ 480V (615kva) 1400 amps to Heat Station
Mid-frequency for small to medium jobs
Integral or remote heat station
Compact design and packaging
“Embedded” packaging available for OEM
Optional simultaneous or switchable dual output
Standard power: 10kW, 25kW, 50kW, 75kW, 100kW
Frequency range: 1 kHz – 50 kHz
SCR front end and is also frequency swept.
These units operate up to 10KHZ.
Full bridge, 480V.
Standard Power: Above 100kW.
Ideal for small diameter or thin workpiece requirements
HMI interface and meter display, with program control
Standard power: 7.5kW, 15kW
Frequency range: 50 kHz – 300 kHz
Made for super high-precision applications like crystal growing
Electrical Specifications
AC Input: 480VAC, +/- 10%, 48 – 62Hz; 3 phase, 3 wire, not phase sensitive
Displacement power factor: 0.95 @ 10-100% rating
Efficiency: 94% @ rated power, nominal line voltage
Power regulation +/-0.05% of set value with +/-10% input voltage change
Environmental Specifications
Altitude: 1000m (3,300 ft) maximum without derating
Ambient operating temperature: 0 to 50C (32 to 122F)
Storage: -20 to 60C (-4 to 140F)
Relative humidity: 5 to 95% non-condensing
Vibration: 0.152mm (0.006 inches) displacement, 1G peak
General technical data and operating conditions
Load type: Series RLC load
Operating mode: Continuous
Cooling method: Direct water cooling
Cooling water quality: Per Data Sheet
Cooling water inlet temperature: 10 to 35C (50 to 95F)
Minimum differential pressure: 2 bar (30PSI) between inlet and outlet
Maximum pressure: 8 bar (116PSI)
Control specifications
Output power range: 10 to 100%
Output frequency range: 1 kHz to 30 kHz
Power regulation: +/-0.05% of set value with +/-10% input voltage change
Current limit: Current limit programmed to 100% of rated output current
I/O: Analog input; 0-10V & 4-20ma; 16 bit
Analog output; 0-10V & 4-20ma; 16 bit
PLC hardware: Siemens HMI touch screen, Siemens plc with Profibus (other manufacturers available upon request)
Regulation modes: Power or output current
Control technique: Full digital control, no potentiometer for power or current calibration
Alarms:
-
- Low water pressure
- High inlet water temperature
- High outlet water temperature
- Undervoltage
- Overcurrent, out of sync
- Inverter IGBT fault
- Chopper IGBT fault
- Output current sensor faul
- dc current sensor fault
Heat station: Adjustable matching transformer and capacitor. Contained in inverter enclosure
| Series | Characteristics | Kilowatts | Hertz |
| PowerLink 1.3 | IGBT Mid-frequency Technology | 10 – 150kW | 30 – 100kHz |
| PowerLink 3.0 | IGBT Low frequency | 100 – 4000kW | 180Hz – 10kHz |
| PowerLink 4.0 | IGBT – OEM applications | 10 – 150kW | 10 – 20kHz |
| PowerLink 6.0 | IGBT Zone Control Technology | 1000 – 10,000kW | 180Hz – 6kHz |
| PowerLink 7.1 | IGBT & SiC Technology | 5 – 50kW | 100 – 300kHz |
| PowerLink 8.0 | IGBT Extreme Precision | 25 – 150kW | 3 – 25kHz |
Control Specifications
- Output power range: 10 to 100%
- Output frequency range: 1 kHz to 30 kHz
- Power regulation: +/-0.05% of set value with +/-10% input voltage change
- Current limit: Programmed to 100% of rated output current
- Heat station: Adjustable matching transformer and capacitor in inverter enclosure
- Siemens HMI touch screen, Siemens PLC with Profibus
- Regulation modes: Power or output current
- Control technique: Full digital control, no potentiometer for power or current calibration
Alarms
- Low Water Pressure
- High Inlet Water Temperature
- High Outlet Water Temperature
- Undervoltage
- Out-of-Sync
- Inverter IGBT Fault
- Chopper IGBT Fault
- Output Current Sensor Fault