High-voltage power supply, 10 kV with digital display

The 10kV power supply unit in the demo housing is a continuously adjustable high-voltage source for both electrostatic applications and a power supply unit suitable for operating gas discharge tubes.
It’s simple and intuitive to operate, the supply output for the electric heating coils and its high level of safety make it a valuable device for physics demonstration lessons. Compared to many other comparable commercially available devices, it features the unusual use of a medium-frequency sine wave converter, which means that the device emits virtually no high-frequency interference (EMR). Compared to earlier mains-powered systems, the output voltage remains constant even when the mains voltage varies.

Technical data:
Mains supply: 230 V 90 W 50 ... 60 Hz
Protection class: I (cold device cable with earth cable)
Housing size: Demo medium
Output voltage 1: 0 … 12 kV (load resistance >= 1 GΩ)
Maximum current 1: 2 mA (for a few seconds)
Output resistance 1: approx. 5 MΩ
Buzzing voltage 1: < 100 Veff (at 2 mA load current)
Fuse protection 1: Current limiting resistor, ceramic overcurrent protection
Reference voltage 1: Earth wire
Output voltage 2: 6.3 V AC
Nominal current 2: 5 A
Fuse protection 2: Ceramic overcurrent protection
Reference voltage 2: Potential-free, max. 42 Veff against the earth wire

Characterisation:
No voltage drop indicated at 10kV and 1GΩ load
Maximum voltage: 6.1 kV at 1 mA load.
Maximum continuous current: 1.7 mA at 0.3 kV.
Short-term continuous current (for a few seconds): 2 mA at 2.4 kV