AC/DC High Voltage Divider
The ZWSGB Series is a highly precise resistance-capacitance (RC) voltage divider for measuring AC and DC high voltages up to 300kV.
Featuring US DuPont dry dielectric and a separated low-voltage display, it ensures exceptional accuracy, portability, and operator safety.
Product Overview
The ZWSGB Series High Voltage Divider is an ideal instrument for precise high-voltage diagnostics in power systems and electronic equipment manufacturing.
Utilizing an advanced resistance-capacitance (RC) division circuit, it efficiently steps down massive AC and DC voltages for accurate measurement. The system consists of a high-voltage divider column and a separate low-voltage digital display, serving as a direct and superior replacement for traditional electrostatic voltmeters.
Functions and Value:
1. High Precision Measurement: Uses a high-precision thin-film capacitor and glass glaze resistor array for True RMS AC and DC measurement.
2. Excellent Anti-Interference: Features a specially designed aluminum equipotential ball to optimize the electric field and prevent point discharge.
3. Maximum Operator Safety: Employs a fully separated structural design with a long coaxial cable, keeping the operator safely away from the high-voltage column.
4. Leakage-Free Material: Filled with US DuPont dry insulating dielectric, effectively eliminating the partial discharge and oil-leakage risks of traditional oil-filled dividers.
5. Intuitive & Portable: Lightweight aluminum alloy construction with easy toggle switches for AC/DC and High/Low ranges on a clear digital LCD screen.
Technical Details
| Parameter | Specification |
|---|---|
| Model | ZWSGB Series |
| Partial Pressure Ratio | 1000:1 |
| Insulating Medium | US DuPont dry dielectric |
| AC Measurement | True effective value (True RMS) |
| AC Accuracy | 1.0% (1.5% for 300kV model) |
| DC Accuracy | 0.5% (1.0% for 300kV model) |
| Connection Cable Length | 3m - 5m (Depends on model) |
| Operating Temperature | 0°C to 40°C |
| Ambient Humidity | ≤ 85% RH |
Model Selection Guide
| Model | Rated Voltage (AC/DC) | Measuring Range (High/Low) | Resistance | Weight |
|---|---|---|---|---|
| ZWSGB-50C | 50kV | High: 0-50kV / Low: 0-20kV | 600 MΩ | 6 kg |
| ZWSGB-100C | 100kV | High: 0-100kV / Low: 0-20kV | 1200 MΩ | 8 kg |
| ZWSGB-150C | 150kV | High: 0-150kV / Low: 0-20kV | 1800 MΩ | 15 kg |
| ZWSGB-200C | 200kV | High: 0-200kV / Low: 0-20kV | 2400 MΩ | 17 kg |
| ZWSGB-300C | 300kV | High: 0-300kV / Low: 0-20kV | 3600 MΩ | 22 kg |
Recent Work
Parts List
| Item NO. | Max Current | Measuring Range | Main Features | Recommended Application |
|---|---|---|---|---|
| GDZR-10A | 10A | 100μΩ - 20KΩ | Portable, built-in discharge alarm | Small to medium distribution transformers |
| GDZR-20A | 20A | 10μΩ - 10KΩ | High-speed testing, heat dissipation | Medium-sized power transformers |
| GDZR-40A | 40A | 1μΩ - 2KΩ | Dual-channel measurement, high current | Large-scale power transformers |
| GDZR-40A | Three-Phase 10A | 100μΩ - 10KΩ | Three-phase simultaneous measurement | Yn-type transformers, time-saving |
Product Video
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Certificate
Frequently Asked Questions
Contact our engineers for technical support and application guidance.
Yes, the high-voltage divider can be used independently with a standard multimeter. Due to the standard 1000:1 divider ratio, you simply multiply your multimeter’s reading by 1000 to get the exact high voltage kV value.
No. Unlike traditional oil-filled dividers, the ZWSGB-C series uses US DuPont dry insulating dielectric material. This completely eliminates any risk of oil leakage while minimizing internal partial discharge.
If your measuring voltage is below 20kV, simply switch the function toggle on the low-voltage display meter to the “Low” gear. This adjusts the internal scaling to provide a much higher resolution and accuracy.
No. Because the internal circuit involves filtering capacitors during DC measurement, you must first properly discharge the tested equipment and the divider using a discharge rod before approaching the high-voltage testing zone safely.
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