0.1Hz Vlf AC DC High Voltage Hipot Tester for Power Cable Testing Equipment

• Type: Strength Testing Machine
• Accuracy Grade: 1
• Load Way: Electronic Load
• Display: LCD
• Control: Computer Control
• Weight: 0-100Kg
• Model NO.: EPVLF-80kV
• Power Source: 110V/220V Can Be Customized
• Peak Voltage: 80kv
• Output Frequency: 0.1Hz, 0.05Hz and 0.02 Hz (Selectable)
• Maximum Load Capacity: 1.1UF @0.1Hz, [email protected], [email protected]
• Power Supply: 220V or at Customized
• Voltage Waveform Distortion: Less Than 5 %
• Output Voltage Accuracy: Peak Voltage Instability Less Than 1%
• Working Environment: Indoor or Outdoor -10-+50, 85%Rh.
• Hv Unit I Weight: 10kg
• Hv Unit II Weight: 22kg
• Capacitor Weight: 2kg
• Frequency: 0.1Hz, 0.05Hz and 0.02 Hz
• Peak Voltage Instability: Not More Than 1%
• Frequency Instability: Not More Than 3%
• Max Load Capacity: [email protected]
• Testing: Automatic
• Transport Package: Plywood Cases
• Specification: Control unit: 4kg
• Trademark: EP Hipot Electric
• Origin: Wuhan, China
• HS Code: 9030339000
• Production Capacity: 500/Year

Product Description

VLF AC HIPOT TEST SET
EPVLF-80/1.1

General Information:
VLF stands for Very Low Frequency. VLF is generally considered to be 0.1 Hz and lower, its major application is for testing solid dielectric cable, transformers, motors, generators, switchgear and other electrical apparatus.

A VLF hipot is just an AC output tester but with an output frequency of 0.1 Hz or lower rather than 50/60Hz. Although the frequency is very low, it is still an alternating current with polarity reversals every half cycle. At 0.1 Hz output, rather than 60Hz, it takes 600 times less current and power to apply an AC voltage to a capacitive load, like a long cable.

Features:

• Adapts microprocessor controlled, can realize voltage set-up/down, measuring and protecting automatically. Manual intervention is allowable even during the auto voltage boosting.
• Portable, easy to move.
• Large LCD can display waveform clearly, and test report can be printed. Built-in printer.
• The data of current, voltage, and waveform can be sampled at HV side.
• A high voltage output protective resistor is provided in the voltage boost body in the design and this eliminates the need of additional protective resistor connected outside.
• Closed-loop negative feedback circuit is adopted. No capacity rising during outputting.
• Over voltage and current protection: When the output is beyond the limitation, the control unit will shut itself down within 20ms.

Specifications

Specifications
Peak voltage:	80kV
Output frequency:	0.1Hz, 0.05Hz and 0.02 Hz (selectable)
Fuse:	20A
Maximum load capacity:	1.1μ[email protected], 2.2μ[email protected], 5.5μ[email protected]
Power supply:	220V ±10%, 50Hz ±5% (If using a portable generator, make sure the output voltage and frequency are stable. Power >3kW.)
Output voltage accuracy:	peak voltage instability ≤1%, frequency instability ≤3%.
Voltage waveform distortion:	≤5%.
Output voltage accuracy:	peak voltage instability ≤1%, frequency instability ≤3%.
Working environment:	indoor or outdoor; -10ºC-+50ºC, 85%RH.
Weight:	Control unit 4kg, HV unit I: 10kg, HV unit II: 22kg, Capacitor 2kg.

More details on VLF testing, please contact EPHipot, we have professional tech team to design correctly designed products and systems.