The VD series are floor standing, high voltage probes designed for rugged daily use. All capacitors are temperature, frequency, and voltage stabilised for the best possible performance. Resistors used have an extremely low voltage coefficient of resistance. Toroids as standard to minimise stray capacitance. Probes all have field defining toroids as a standard item to minimise the proximity effect (stray capacitance) and maximise the reproducibility measurement.
The high and low frequency calibrations are carefully matched before shipment. Very high frequency cable effects are also carefully compensated so accurate measurements can be made even when the cable length exceeds the pulse duration. No adjustments are necessary once the probes have been factory calibrated.
Find the component you are looking for in the table below or call us on +44 (0)1793 784389 and speak to a member of our technical sales team.
High voltage probes white paperVD series
| Model | Max DC / Pulsed V (kV) | Max Freq. (MHz) | Cable Length (ft) | DC Accuracy | 10 Hz – 1 MHz Accuracy | >1 MHz Accuracy | Resistance (MΩ) | Height ("/cm) | Diameter ("/cm) | Capacitance (approx. pF) | Base Diameter ("/cm) | Std Divider Ratio |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| VD-70 | 70/115 | 25 | 30 | <0.1% | 1% | 3% | 800 | 20/50 | 11/28 | 24 | 10/25 | 10,000:1 |
| VD-100 | 100/160 | 20 | 30 | <0.1% | 1% | 3% | 1600 | 24/60 | 11/28 | 25 | 10/25 | 10,000:1 |
| VD-150 | 150/230 | 20 | 30 | <0.1% | 1% | 3% | 2000 | 30/75 | 12/29 | 27 | 12/30 | 10,000:1 |
| VD-200 | 200/300 | 16 | 30 | <0.1% | 2% | 3% | 2800 | 40/99 | 16/40 | 24 | 20/50 | 10,000:1 |
| VD-300 | 300/420 | 12 | 30 | <0.1% | 2.5% | 4% | 4500 | 54/135 | 24/61 | 20 | 30/76* | 10,000:1 |
| VD-400 | 400/550 | 8 | 30 | <0.1% | 3% | 4% | 7000 | 72/180 | 24/61 | 16 | 30/76 | 10,000:1 |
Useful Documents
Voltage Probe General Data
Voltage Probe General Manual
North Star Probe Application Examples
VD-60 Drawing
VD-100 Drawing
VD-150 Drawing
VD-200 Drawing
VD-300 Drawing
