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Ultra-Low Frequency Dielectric Loss Tester from China Suppliers and Factory for Medium-Voltage Cable Testing
The Ultra-Low Frequency Dielectric Loss Tester combines the following features and functions:
- Full AC voltage testing up to 24/31.8 kV RMS (sine wave voltage)
- Integrated ultra-low-frequency withstand voltage and dielectric loss factor testing
- Additional output voltage waveforms of DC and rectangular waves
- Sheath testing and pinpointing up to 10 kV
- Leakage current measurement
- Manual and automatic frequency adjustment
- Voltage breakdown detection with automatic disconnection of the high-voltage connection
- Logging to internal memory, exportable to a computer via USB stick for generating test reports
- Firmware updates via USB
| Output Voltage Specs | ||
|---|---|---|
| Model | BVLF-34kV | BVLF-45kV |
| Output Voltage (Sine Wave) | max.24kVRMS (34kVPEAK) | max.31.8kVRMS (45kVPEAK) |
| DC Voltage | ±1–34kV | ±1–45kV |
| Resolution | 0.001kV | 0.001kV |
| Accuracy | 1% | 1% |
| Output Current Specs | ||
| Measurement Range | 0–14mA | 0–14mA |
| Resolution | 1µA | 1µA |
| Accuracy | 1% | 1% |
| Maximum Capacitance Load |
0.1Hz@0.5µF/24kVrms/34kVpeak 0.05Hz@1.0µF/24kVrms/34kVpeak 0.01Hz@8.0µF/18kVrms/25kVpeak |
0.1Hz@0.5µF/31.8kVrms/45kVpeak 0.05Hz@1.0µF/31.8kVrms/45kVpeak 0.01Hz@5.0µF/22kVrms/31kVpeak |
| Dielectric Loss Factor Measurement (BVLF TD) | ||
|---|---|---|
| VLF-Sine | 1-24kVrms | 1-31.8kVrms |
| Load Range | 1nF-8uF | 1nF-5uF |
| Resolution | 1x10-5 | 1x10-5 |
| Accuracy | 1x10-4 | 1x10-4 |
| Measurement Range | 1x10-4 - 9999.9x10-4 | 1x10-4 - 9999.9x10-4 |
| tan-δ Measurement Frequency | 0.1Hz | 0.1Hz |
| General Information | ||
| Power Consumption | max.300VA | max.400VA |
| Reverse Voltage Protection | 13kV | 15kV |
| Data Interface | USB 2.0 | |
| Dimensions (W x H x D) | Peli Case 1430, 430 mm x 240 mm x 340 mm | |
| Weight | 22kg | |
| Ambient Temperature (Operating) | -10 to +50°C | |
| Storage Temperature | -20 to +60°C | |
| Safety & EMC Compatibility | Complies with CE standards, Low Voltage Directive (2014/35/EC), Electromagnetic Compatibility Directive (2014/30/EC), Environmental Impact EN60068-2 and subsequent versions | |
| User Interface Languages | English, Chinese (Simplified), Russian, Spanish, etc. | |
What is the maximum output voltage of the ULF Dielectric Loss Tester?
The tester offers different output levels depending on the model. The BVLF-34kV model provides a maximum sine wave output of 24kV RMS (34kV Peak), while the BVLF-45kV model delivers up to 31.8kV RMS (45kV Peak).
Does the tester support automatic voltage disconnection in case of breakdown?
Yes. The tester features integrated voltage breakdown detection. Once a breakdown is identified, it automatically disconnects the high-voltage connection to ensure safety.
How can I export test reports from the device?
Test results are logged directly to the device's internal memory. You can easily export this data to a computer via a standard USB flash drive to generate professional test reports.
What safety and EMC standards does this equipment comply with?
The device fully complies with CE standards, the Low Voltage Directive (2014/35/EC), the Electromagnetic Compatibility Directive (2014/30/EC), and the Environmental Impact standard EN60068-2.
What is the measurement resolution for the Dielectric Loss Factor (tan-δ)?
The dielectric loss factor measurement (BVLF TD) features a high-precision resolution of 1x10-5, with an accuracy of 1x10-4 and a measurement range of 1x10-4 to 9999.9x10-4.