Each VON Model C test set consists of a corona free high voltage base cabinet, a control box, a sectionalized discharge stick, and a protective output resistor.
These units can be extended to 500KV with VON topping units. The maximum output voltage level is limited by the required output current at that voltage.
A 625 volt amp, 110v to 20kv or 220v to 20kv (Option E), air-insulated, epoxy-impregnated, high voltage transformer
A Cockcroft-Walton voltage multiplier circuit specially engineered for this particular application.
A kilovoltmeter multiplier resistor connected directly to the high voltage guard circuit. This gives direct voltage measurement of the high voltage output with accuracy of +/- 2% of full scale.
A magnetically and electrostatically shielded and guarded output meter assembly in the HIGH VOLTAGE LEAD with ranges of 0-100 microamp and 0-1 milliamp. Each meter is individually protected by a special bypass circuit.
Range changing is accomplished automatically. Special ranges can be furnished. This assembly is replaced by a multirange 0-10 microammeter in the control box in the Model CG. The overlapping ranges are 0-10/30/100/300/1,000/3,000/10,000/30,000 microamps with resolution to 0.5 microamps and accuracy of +/- 2% of full scale.
A neon protective tube to limit the kilovoltmeter circuit to 50 volts.
A high voltage hot guard (non-measured) connection when current metering is provided in the high voltage lead.
A cold guard (non-measured) connection when current metering is provided in the ground return lead. (Model CG and units with otion D)
A metal ball suitable for corona free operation at maximum voltage is provided on the output terminal for use on top of the protective output resistor.
