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KDVLF-30 VLF very-low frequency high voltage generator
KDVLF-30 VLF very-low frequency high voltage generator

KDVLF-30 VLF very-low frequency high voltage generator

Applications:

Complies with DL/T849.4-2004, used for withstand voltage tests of power cables, generators and capacitors. Applied in power plants, substations and electrical labs as an alternative to power frequency tests for large-capacity insulation equipment.

  • Response within
    24 hours

  • Free warranty
    12 month

  • On-line training
    Support

Profile:

KDVLF-30 is an intelligent ultra-low frequency high-voltage generator with a 7-inch touch screen. It adopts digital frequency conversion technology, supporting multi-frequency output and automatic testing, offering compact, safe and reliable insulation detection

Features:

  • Multi-frequency selection (0.1Hz/0.05Hz/0.02Hz) to meet different test requirements
  • 7-inch capacitive touch screen with Chinese/English display, user-friendly and intuitive
  • Full-automatic test process: self-test, boosting, timing, step-down and shutdown
  • Multiple protections (overvoltage/overcurrent) with fast action (≤10ms) for safety
  • High-voltage side sampling ensures true and accurate voltage/current data
  • Compact and lightweight design, suitable for outdoor on-site operations
  • Automatic data storage (up to 64 records) and built-in printer for test reports


 

Parameter:

  • Power Supply
    • Input voltage: AC220V±5%, 50±2Hz (generator power ≥3kW if used)
  • Output Performance
    • Output voltage: 30kV (peak value)
    • Output frequency: 0.1Hz, 0.05Hz, 0.02Hz
    • Load capacity: 1.1μF (0.1Hz), 2.2μF (0.05Hz), 5.5μF (0.02Hz)
  • Accuracy & Waveform
    • Measurement accuracy: ±3%
    • Voltage positive/negative peak error: ≤3%
    • Waveform distortion: ≤5% (sine wave)
  • Test Control
    • Test time: 0~99 minutes adjustable
    • Protection settings: Adjustable overvoltage/overcurrent limits
    • Data storage: Up to 64 test records, automatic saving on shutdown/protection
  • Working & Storage Conditions
    • Working temperature: -10℃~+40℃; Relative humidity: ≤85%RH
    • Storage temperature: -20℃~+60℃; No corrosive gas or severe vibration
  • Structure & Accessories
    • Structure: Controller + booster (oil-immersed, with oil injection valve)
    • Interface: 7-inch touch screen, printer, emergency stop switch
    • Standard accessories: Control cable, high-voltage cable, grounding wire, self-test capacitor

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Kaidi Zhengda Electric
Kaidi Zhengda

Oversea Sales Manager

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

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