RDVLF-Z40Y VLF HV Withstand Voltage Tester
- Wrindu
- Shanghai, China
- about 10 working days
- 5000 set/month
- RDVLF-Z40Y
Withstand voltage testing includes AC and DC methods. AC withstand testing mainly covers power frequency, variable frequency, and 0.1Hz very-low-frequency (VLF) technologies. As an IEC-recommended advanced testing method, 0.1Hz VLF technology offers excellent performance for high-voltage insulation testing.
The RDVLF-Z40Y features auto-variable frequency true sine wave output (0.1–0.01Hz), real-time voltage and current waveform display, optical isolation, closed-loop feedback control, and overvoltage/overcurrent protection. With high-voltage side direct sampling, data storage, built-in printer, and portable design, it is suitable for on-site AC withstand voltage testing.
Product Features
1.AC Withstand voltage testing, voltage & current curve display.
2.Safe Optical isolation technology.
3. Easiest to use Fully automatic microcontroller.
4. H/L voltage closed loop negative feedback control circuit, output no capacity rise effect.
5. Built-in printer.
6. Built-in protective resistors.
7. Color Touch LCD (154*86mm) operation, True sine wave output.
8. Real-time display of actual output waveform.
9. Ergonomic, menu guided, large color touch screen
10. Storage of test results for later retrieval and print.
11. Over voltage and current protected.
12. Auto variable frequency 0.1Hz, 0.05Hz, 0.02 Hz, 0.01 Hz.
13. 60 mins continuous working;
14. Data of current, voltage and waveform directly sampled at HV side.
15. Portable rugged and reliable trunk design (box material is special mixed resin, made in USA).
16. RS232/USB for buyer’s option (Default configuration of USB interface).
17. DC withstand voltage test and DC leakage current test function (optional).
Product Specifications and Technical Parameters
| No. | Technical Parameter | Specification |
|---|---|---|
| 1 | Power Supply | 220V ± 10% AC (110V can be customized), 50/60Hz, Single Phase |
| 2 | AC Output Voltage (Peak) | 40 kV |
| 3 | Output Frequency | 0.1Hz, 0.05Hz, 0.02Hz, 0.01Hz (Auto Variable Frequency) |
| 4 | Load Capacity | 0.5μF @ 0.1Hz; 1.0μF @ 0.05Hz; 2.5μF @ 0.02Hz; 5.0μF @ 0.01Hz |
| 5 | Frequency Stability | Frequency fluctuation < 0.5% |
| 6 | AC Voltage Measurement Accuracy | ±3% |
| 7 | AC Voltage Measurement Resolution | 0.1kV |
| 8 | AC Current Measurement Accuracy | ±3% |
| 9 | AC Current Measurement Range | 0–20mA |
| 10 | AC Current Measurement Resolution | 0.1mA |
| 11 | Positive and Negative Voltage Peak Error | ≤3% |
| 12 | Voltage Waveform Distortion | ≤3% |
| 13 | Construction Type | 40kV Integrated Device |
| 14 | DC Leakage Current Measurement (Optional) | Supported |
| 15 | DC Output Rated Voltage | +40kV |
| 16 | DC Voltage Accuracy | 3% |
| 17 | DC Leakage Current Range | 0–2000μA |
| 18 | DC Leakage Current Resolution | 1μA |
| 19 | DC Leakage Current Accuracy | 3% |
| 20 | Operating Temperature | Indoor and Outdoor: -10℃ to +50℃ |
| 21 | Operating Humidity | ≤85% |
FAQs
Q1: What is a VLF AC withstand voltage tester used for?
A: A VLF AC withstand voltage tester is used to check the insulation strength of high-voltage cables and electrical equipment by applying very-low-frequency AC voltage to detect insulation defects and potential failures.
Q2: What frequency range does the RDVLF-Z40Y VLF tester support?
A: The RDVLF-Z40Y supports automatic variable frequency output at 0.1Hz, 0.05Hz, 0.02Hz, and 0.01Hz, providing flexible testing options for different cable conditions.
Q3: How does optical isolation improve the safety of AC withstand voltage testing?
A: Optical isolation technology separates the control circuit from the high-voltage system, reducing electrical risks and improving operator safety during high-voltage testing.
Q4: Can the RDVLF-Z40Y display voltage and current waveforms during testing?
A: Yes. The tester features a color touch LCD screen that displays real-time voltage and current curves, allowing operators to monitor test conditions easily.
Q5: Does the VLF AC withstand voltage tester support data storage and printing?
A: Yes. The RDVLF-Z40Y can store test results and includes a built-in printer for convenient report generation and record keeping.
