POWER SOURCE FOR ELECTRON BEAM WELDING
Upto 20kW
POWER SOURCE FOR ELECTRON BEAM WELDING
Upto 20kW
IONICS has designed, developed and supplied regulated power supplies for Electron Beam Welding equipment using the high frequency resonant / PWM-Controlled switch mode topology.
The entire power source consists of the following:
- Acceleration Voltage Supply
- Filament Heating Supply floating on high voltage
- Bias Supply floating on high voltage
- Focusing Supply
- Beam Oscillation supplies (X and Y) 2 sets
- Beam Deflection supplies (X and Y) 2 sets
Download DatasheetThe unit is divided into two parts:
- The HT Tank
- The Control Cubicle
The HT tank houses the high voltage section of the Acceleration supply and also the Filament Heating Supply and the Bias Supply, each floating at -100kV.
The control cubicle houses the Beam Oscillation and the Beam Deflection Supplies, electronic controllers for the Acceleration supply, Filament Supply and Bias supply
TECHNICAL SPECIFICATIONS
| PARAMETER | SPECIFICATION |
|---|---|
| Input Voltage | 415V ±10% A C, 50Hz, three phase |
| Protections | HRC fuses at mains input Single phasing preventer Line filter at mains input Thermal overload relays Various interlocks |
| Controls & Signals on Control Panel for all the power supplies | Key switch to enable/disable the whole system Emergency OFF push button Selector switch for local/remote selection ON/ OFF push buttons 10 turn potentiometers for voltage & current control LED indications for ON/ OFF status LED indications for fault status |
| ACCELERATIO N VO LTAGE SUPPLY | |
| Output Voltage Range | Upto -100kV DC |
| Output Current Range* | Upto 200mA |
| Output Voltage Control | 0 to rated voltage |
| Output Current Control | 0 to rated current |
| Line Regulation | ≤ 0.1% for 10% variation in input voltage |
| Load Regulation | ≤ 1% for 0 to 100% load variation |
| Stability | < 0.1% |
| Ripple | ≤ 1% rms of rated voltage |
| Resolution | 100V for voltage and 0.1mA for current |
| Repeatability in Settings | < 1% |
| Protections | Against over current, over voltage, over temperature, short-circuit |
| FILAMENT HEATING SUPPLY | |
| Output Voltage Range | Upto 10V DC |
| Output Current Range | Upto70A |
| Output Voltage Control | 0 to rated voltage |
| Output Current Control | 0 to rated current |
| Insulation Level | Floating on -100kV DC |
| Insulation Level | Floating on -100kV DC |
| Protections | Against over current, filament open |
| BIAS (GRID ELECTRO DE) SUPPLY | |
| Output Voltage Range | Upto -3500V DC |
| Output Current Range | Upto 10mA |
| Output Voltage Control | 0 to rated voltage |
| Insulation Level | Floating on -100kV DC |
| Regulation | ±1% |
| Ripple in Voltage | ≤ 1% peak to peak |
| Stability | < 1% |
| Protections | Against short circuit |
| Control Loop | Control loop senses the beam current and required ramp -up timing |
| FOCUSING SUPPLY | |
| Output Voltage | Upto 150V DC |
| Output Current | Upto 15A |
| Output Voltage Control | 0 to rated voltage |
| Output Current Control | 0 to rated current |
| Ripple | ≤ 0.1% rms |
| Mode of Regulation | Constant current-constant voltage |
| Protections | Against over current, short circuit |
| BEAM OSCILLATIO N SUPPLIES (X & Y) 2 SETS | |
| Output Voltage | Upto 10V A C sinusoidal |
| Output Current | Upto 2A |
| Voltage Control | 0 to rated voltage |
| Frequency | Variable from 50Hz to 1kHz |
| Phase Shift | Adjustable phase shift of 0 to 180˚ between the two sets of outputs |
| Line Regulation | ≤ 0.1% for 10% variation in input voltage |
| Load Regulation | ±1% |
| Protections | Against over current |
| BEAM DEFLECTIO N SUPPLIES (X & Y) 2 SETS | |
| Output Voltage | Upto 30V DC |
| Output Current | Upto 5A |
| Output Voltage Control | 0 to rated voltage |
| Output Current Control | 0 to rated current |
| Polarity | Positive / negative (selectable through switch) |
| Line regulation | ≤ 0.1% for 10% variation in input voltage |
| Load regulation | ≤ 0.1% |
| Ripple | ≤ 0.1% rms |
| Mode of Regulation | Constant current-constant voltage |
| Protections | Against over current, short circuit |