Vulcan Range
15kW, 80kV electron beam or capacitor charging HV PSU
| Basic Specification | The Vulcan range has been designed principally to address the demanding
requirements of electron guns including electron beam welders. Therefore, rapid response to load changes and rugged tolerance of gun arcs is seen as a necessity. X-ray tubes and scientifi c research are also examples where this product could be successfully utilised. Full control is offered remotely by RS485 link from a terminal or host computer. Alternatively, analogue inputs can be implemented to control the outputs which also allows diagnostic output via the RS485 port. As this power supply can be adapted to deliver outputs from 10kW to 20kW and up to 200kV, a specifi cation example is provided below. |
| Specification Example | The input voltage range can be between 380/220VAC -10% to 415/240VAC +10%, three phase, four-wire, 50 or 60Hz. The inputs are power-factor corrected. In cases where no neutral connection is available, this should be specified at time of order. Supplies may also be 210/120VAC three wire but this must also be specified at time of order. |
| Output voltage | The output voltage may be set to any value up to 60kV negative (in this
example). Values below 500V are considered to be outside the normal operational range and are not subject to specification. |
| Output stored energy | Any level of current may be drawn from the supply up to a maximum of 250mA. Automatic reduction of output voltage occurs above approximately 275mA. |
| Ripple | 60V pk. to pk. at twice the main oscillator frequency. The oscillator operates at 50 to 60kHz and so the main ripple component of the output will be at 100 to 120kHz. This assumes that the high voltage cable is at least 1000pF. There is also a ripple component at 100Hz (for a 50Hz supply). This will is below 60V pk. to pk. but is measured separately from the convertor frequency component. Note that convertor frequency ripple is mainly related to load current, not voltage, while mains frequency ripple is related to output power. |
| Regulation | Line: Less than 15V for a 25VAC change in supply voltage. Load: Less than 15V for a 25mA (10%) to 250mA (100%) change in load current Analogue inputs and outputs. |
| HV command input | 0 to +10V = 0 to 60kV |
| mA command input | 0 to +10V = 0 to 250mA |
| Bias command input | 0 to +10V = 0 to -2000V (Standby Mode) |
| HV feedback output | 0 to +10V = 0 to 60kV |
| mA feedback output | 0 to +10V = 0 to 250mA |
| Bias feedback output | 0 to +10V = 0 to -2000V |
| Filament feedback output | 0 to +10V = 0 to 100A. |
| Mechanical | |
| Dimensions | 56cm x 78cm x 100cm |
| Mass | 250kg |
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