High Voltage Generator G2000
Medium Frequency Generator for Plasma Generation
Quick Overview
High voltage medium frequency generator for creating low temperatura plasma at normal atmospheric pressure
Shortform Data
| property | value | unit |
| output voltage | 20 | kVss |
| output power | 500 | W |
| freqency | 20-100 | kHz |
| mains voltage | 230 | Vac |
| 19 inch dimensions | 4 | HE |
Benefits
- plasma generation at normal air pressure
- variable output voltage from 0 to 20kVss
- wide frequency range
- pulse packet modulation
- short circuit and no-load proof
- air-insulated transformer
- frontside menus for easy operation
Applications
- plasma generation at normal atmospheric pressure
- barrier discharge
- corona treatment
- liquid-free cleansing of surfaces
- conditioning of surfaces prior to applying paint or glue
- non-felting treatment of wool and other textiles
- sterilisation of food
- detoxication of smoke or exhausts
Your Task
There are nearly unlimited applications for low temperature plasma, i.e. ionised gas, at normal atmospheric pressure.
Plasma sterilisates. It kills germs and spores in food products, paints and textiles.
Plasma ablates material. It cleans, degreases, improves and conditions surfaces prior to painting, glueing or electroplating.
Plasma enforces chemical reactions. It passivates or oxidates surfaces of metals to protect against corrosion or or to ease consecutive treatments.
The reactivity is usable as well for purifying exhaust gases of motors or incinerators. Toxic molecules are transformed into less dangerous ones.
Our Solution Is Your Advantage
The high voltage generates a plasma at a dielectrically insulated electrode (barrier), even at normal atmospheric pressure. This effect is known as barrier or corona discharge.
For all applications there are many advantages.
No vacuum is needed to initiate plasma generation. Thus no sealed ractor is needed. And you can apply the plasma treatment in-line in your production. This is especially useful for reeled parts.
No liquid is needed. You neither have to supply nor to dispose or decontanimate any liquid. And there is no need for filters or catalytic converters that have to be replaced periodically.
Because of the completely variable setting of output voltage and frequency you can optimize the plasma formation for your application.
Function
The high voltage pulse generator G2000 supplies a sinewave voltage to a capacitive load. Frequency and amplitude of the output voltage can be adjusted independently. The output voltage can be periodically blanked by means of pulse packet modulation.
All parameters are set via menus on a large 4-line LC display with only a few keystrokes and a datawheel.
The generator has an intermediate DC circuit with an adjustable voltage between 0 and 300Vdc. The DC voltage feeds a short-circuit proof inverter which can be freely adjusted in pulse width and frequency. Thus the frequency can be set near to the resonance frequency of the load to achieve a maximum output voltage. The pulse width of the inverter is set to minimize losses and thus power consumption.
The unit is short-circuit and open-circuit proof. Several independent current limiters control the mains current, the average current and the peak current.
On the mains side an active power factor correction (PFC) and a mains filter reduces harmonics and smoothes the operating current.
The generator can be supplied with two high voltage transformers to double the output voltage. In this case the output voltage is symmetrical to earth, i.e. none of the two poles is grounded.
Usage
The generator is designed to be mounted inside a cabinet. It must not be operated outside such a cabinet. The protection class is IP40 for the front and IP20 for the rear.
Variants
The generator can be built without high voltage transformer in case the transformer should be mounted externally in proximity to the load.
To adopt to a wide range of loads the airgap or the secondary winding of the high voltage transfomer might be modified. The winding is easily accessible, and so is the air gap.
The operating software can be extended, e.g. by external control via RS232 or CAN bus interface.
Technical Data
| Operating Range | min | typ | max | unit |
| output voltage | 0 | 20 | kVss | |
| output power | 0 | 500 | W | |
| frequency | 20 | 100 | kHz | |
| modulation packet or pause width | 0 | 1000 | ms | |
| intermediate voltage | 0 | 300 | Vdc | |
| intermediate current | 0 | 4 | Adc | |
| The output voltage depends on the frequency adjustment and the load capacity. | ||||
| Lower frequencies are feasible, but locked by means of software. | ||||
| Environment | min | typ | max | unit |
| operating temperature, non-condensing | 0 | 40 | °C | |
| storage temperature, non-condensing | -10 | 70 | °C | |
| mains voltage | 207 | 253 | Vrms | |
| mains frequency | 45 | 65 | Hz | |
| Dimensions | min | typ | max | unit |
| height | 132 | mm | ||
| width | 482 | mm | ||
| depth | 420 | mm | ||
| Allow extra space for the high voltage connector extending to the rear. | ||||
Order Code
| number | description |
| 45.20.100.10 | 1 Pole grounded 0-20kV |
| 45.20.100.12 | Center tap grounded 2x0-20kV |