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KDVLF-80KV VLF ultra-low frequency AC voltage test device
KDVLF-80KV VLF ultra-low frequency AC voltage test device

KDVLF-80KV VLF ultra-low frequency AC voltage test device

Applications:

Complies with power industry standards, used for AC withstand voltage tests of 35kV and below power cables, generators and capacitors. Applied in power systems, cable manufacturers and labs as an efficient alternative to power frequency tests.

  • Response within
    24 hours

  • Free warranty
    12 month

  • On-line training
    Support

Profile:

KDVLF-80kV is a fully automatic VLF test device with microcomputer control. It features high-voltage side sampling, compact design and multiple protections, providing stable and accurate testing for large-capacitive equipment.

Features:

  • Direct sampling from high-voltage side ensures true and accurate voltage/current data
  • Dual overvoltage/overcurrent protection (action time ≤20ms) for high/low voltage sides
  • Closed-loop negative feedback control eliminates capacitance rise effect
  • Built-in high-voltage output protection resistor, no external resistor required
  • Large LCD display with waveform and data visualization, printer for test reports
  • Multi-frequency selection (0.1Hz/0.05Hz/0.02Hz) to meet different test demands
  • Supports phase-by-phase and parallel testing of cables, with historical data storage (up to 9 groups)

Parameter:

  • Core Output Performance
    • Rated voltage: 80kV (peak value)
    • Output frequency: 0.1Hz, 0.05Hz, 0.02Hz
    • Load capacity: 1.1μF (0.1Hz), 2.2μF (0.05Hz), 5.5μF (0.02Hz)
    • Measurement accuracy: ±(3% of full scale +0.5kV)
  • Waveform & Stability
    • Voltage positive/negative peak error: ≤3%
    • Waveform distortion: ≤5% (sine wave)
  • Power Supply
    • Input: AC 220V±5%, 50Hz; Fuse rating: 15A
  • Test Control
    • Test voltage range: 10kV~80kV (peak value)
    • Test time: 0~99 minutes adjustable
    • Protection settings: Adjustable overvoltage/overcurrent limits
  • Physical & Environmental
    • Structure: Split type (Controller: 4kg; Booster: 50kg)
    • Working temperature: -10℃~40℃; Relative humidity: ≤85%RH
    • Storage: Dry, ventilated room without corrosive gas
  • Accessories
    • Standard accessories: High-voltage cable, control cable, grounding wire, discharge rod, shunt capacitor, fuse tubes, printer paper, user manual, certificate, factory inspection report

Contact Us

Kaidi Zhengda Electric
Kaidi Zhengda

Oversea Sales Manager

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Email: kaidizhengda@gmail.com

Phone：+852 5745 8949

Address：4th Floor, Building 12, No. 88, Huanhu Middle Road, Dongxihu District, Wuhan City, Hubei Province, China

+86-027-83551828

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