VLF-34 Portable high-voltage test System
The VLF-34 is designed for high-voltage testing of cross-linked polyethylene (XLPE) insulated cables with AC extra-low frequency (VLF) voltage.
Features
- Advanced technology adopts digital frequency conversion technology, fully automatic microcomputer control, voltage boost, step-down, measurement, protection, etc.
- Control part and High-voltage part adopt an integrated structure design, and only a high voltage wire and ground wire are needed to connect to the tested product without the intermediate connection wire.
- Trolley-style design is convenient for transportation in various working environments, and its small size and light weight are very conducive to outdoor operations (80 kV).
- Over-voltage protection and over-current protection. Action time is no longer than 10 ms.
- The control unit and the booster are connected at low voltage, with photoelectric isolation control, safe and reliable to use.
- Closed-loop negative feedback circuit is adopted. No capacity rising during outputting.
- Capacitive touch screen, LCD graphic display, automatic storage, and printing.
- 0.1Hz, 0.05Hz and 0.02Hz (0.01Hz - option) can be chosen, which ensures a wide test range.
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Output voltage
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34 kVpeak
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Frequency range
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0.1 / 0.05 / 0.02 Hz
(0.01 Hz - option)
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Maximum capacitive load
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1.1 μF @ 0.1 Hz
2.2 μF @ 0.05 Hz
5.5 μF @ 0,02 Hz
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Accuracy
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3 %
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Voltage peak value error
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≤ 3 %
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Voltage waveform distortion
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≤ 5 %
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Power supply
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220 V ± 10 %
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Frequency supply
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50 Hz ± 5 %
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Ambient temperature
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-10 to +40 ℃
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Relative humidity
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85 %
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Weight
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30 kg
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Standard accessories:
- VLF-34
- Compensation Capacitor
- HV Connection Cable
- Ground Cable
- Power Cord
- Fuse 20A
- Print paper
- Discharge Rod
- User manual
Optional accessories: