North Star High Voltage
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North Star High Voltage
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Brand: North Star High Voltage
Origin: USA
UHV Divider—The VD series is mainly used for testing ultra-high voltages and is applied in scenarios where extremely stable physical characteristics are required.
North Star/ North Star VD seriesUHV voltage divider is a vertical ultra-high voltagevoltage probe,
Its range is DC~70 - 400kV (pulse voltage 550KV), accuracy up to 1%, the VD series voltage division ratio is: 10,000:1.
At the same time, the resistors in the VD series of UHV sensors use a very low voltage coefficient, and the capacitors are extremely stable with respect to temperature, frequency, and voltage.
All North Star VD series high-voltage probe use patented technology to ensure the minimization of neighboring effects (parasitic capacitance), while maximizing the consistency and stability of testing.
The high-frequency and low-frequency tests of VDhigh-voltage probe have both undergone precise calibration. The cables have also been finely compensated, so that even if the cable length exceeds the measured pulse period, accurate measurement can still be achieved.
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| Project | VD-70 | VD-100 | VD-150 | VD-200 | VD-300 | VD-400 |
| Maximum DC/Pulse Voltage (kV) | 70/115 | 100/160 | 150/230 | 200/300 | 300/420 | 400/550 |
| Maximum AC RMS value (KV) | 50 | 72 | 108 | 142 | 216 | 290 |
| Maximum Frequency (MHz) | 25 | 20 | 20 | 16 | 12 | 8 |
| Fastest rise time (ns) | 14 | 17.5 | 17.5 | 22 | 30 | 44 |
| Cable Length (ft./m) | 30 | 30 | 30 | 30 | 30 | 30 |
| DCaccuracy | ||||||
| 10Hz-1MHz.accuracy | 1% | 1% | 1% | 2% | 2.5% | 3% |
| >1MHz.accuracy | 3% | 3% | 3% | 3% | 4% | 4% |
| input impedance (Megohms) | 800 | 1600 | 2000 | 2800 | 5100 or2550 |
6800 or3400 |
| Height (inches/cm.) | 20/50 | 24/60 | 30/75 | 35/88 | 54/135 | 72/180 |
| Diameter (in/cm.) | 11/28 | 11/28 | 12/29 | 20/50 | 24/61 | 24/61 |
| Capacitance (approx. pF) | 24 | 25 | 27 | 24 | 30 | 30 |
| Base diameter (in/cm) | 10/25 | 10/25 | 12/30 | 12/30 | 28/72 | 28/72 |
| Standard pressure ratio | 10000:1 | 10000:1 | 10000:1 | 10000:1 | 10000:1 | 10000:1 |