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KDHVA series Multi-Functional VLF Tester: Withstand Voltage, Dielectric Loss & Partial Discharge Tes
KDHVA series Multi-Functional VLF Tester: Withstand Voltage, Dielectric Loss & Partial Discharge Tes

KDHVA series Multi-Functional VLF Tester: Withstand Voltage, Dielectric Loss & Partial Discharge Tes

Applications:

Designed for large capacitive test objects like power cables and motors. Used in power systems, cable manufacturers and labs for VLF withstand voltage, dielectric loss, partial discharge and DC withstand voltage tests to assess insulation performance.

  • Response within
    24 hours

  • Free warranty
    12 month

  • On-line training
    Support

Profile:

This multi-functional VLF tester integrates four test modes with digital frequency conversion and MCU control. It features a color touch screen, intelligent protection and compact design, enabling accurate and efficient insulation detection.

Features:

  • Integrates VLF withstand voltage, dielectric loss, partial discharge and DC withstand voltage tests in one
  • Automatic frequency conversion (0.01Hz-0.1Hz) and intelligent protection without manual setting of limit values
  • High-voltage side sampling ensures no capacitance rise effect and accurate data
  • Supports single-end/double-end shielding to eliminate surface leakage current impact on dielectric loss
  • Real-time display of waveform, test data and automatic generation of insulation evaluation reports
  • Dual structure options (single/series booster) and integrated design for easy transportation
  • Stores up to 90 groups of test data with built-in printer for report output


 

Parameter:

  • VLF Withstand Voltage Performance
    • Rated voltage: 30kV~90kV (peak value); Load capacity: ≤10μF (30/40kV) to ≤4μF (80/90kV)
    • Voltage accuracy: ±3%; Waveform distortion: ≤3%; Frequency range: 0.01Hz~0.1Hz
  • Dielectric Loss Test
    • Test voltage: 1kV~rated value; Dielectric loss range: 0.01×10⁻³~655.35×10⁻³ (accuracy ±1%)
    • Capacitance measurement: 0.001μF~10μF (accuracy ±3%); Insulation resistance: 1MΩ~65535MΩ (accuracy ±3%)
  • Partial Discharge Test
    • Measurement range: 0~5000pC; Resolution: 1pC; Sampling speed: 200MHz
    • Discharge pulse frequency: 1kHz~2000kHz; Displays instantaneous/peak values and discharge voltage
  • DC Withstand Voltage Test
    • Rated voltage: 30kV~90kV; Leakage current range: 0~2000μA (accuracy ±3%, resolution 1μA)
  • General Specifications
    • Power supply: AC220V±5%/110V±5%, 50/60Hz
    • Working conditions: -10℃~40℃, ≤85%RH; Storage conditions: -20℃~60℃
    • Structure weight: Controller 4kg; Single booster 25kg; Series booster (2 units) 25kg+45kg
  • Accessories
    • Standard accessories: High-voltage cable, control cable, grounding wire, discharge rod, compensation capacitor, printer paper, fuse tube, user manual