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VLF SMT-30kV
Introduction to the VLF SMT Series ( with Tan Delta):

The SMT Series VLF AC/DC Hipot Testers with integrated Tan Delta functionality provide a highly reliable and IEC-compliant solution for withstand voltage testing. Designed especially for high-capacitance equipment such as power cables, capacitors, motors, and generators, these testers utilize 0.1Hz Very Low Frequency (VLF) to effectively simulate stress conditions while minimizing damage to insulation systems.

Technical Specification for VLF SMT-30kV:

function

  • Withstand voltage test for cables and motors up to 10kV

output voltage

  • 30kV peak

frequency range

  • 0.1Hz – 0.01Hz (automatic conversion)

maximum load capacity

  • ≤ 10μF

system configuration

  • Controller (30kV), built-in booster

weight

  • 45kg

VLF SMT Series
Key Features:

  • Compact and modular design: up to 60kV models have built-in boosters; 80kV models use external series boosters.

  • High measurement accuracy with HV-side sampling.

  • Auto-calculated protection limits based on test object parameters.

  • Fast-reacting intelligent protection < 20ms.

  • Closed-loop control prevents capacitance-induced overvoltage.

  • Dual function: AC withstand test + DC/Dielectric Loss/Insulation Resistance.

  • Output voltage range: 30kV–80kV (peak).

  • Output frequency: 0.1Hz–0.01Hz.

  • AC voltage resolution: 0.1kV, accuracy: ±3%.

  • AC current resolution: 0.1mA, accuracy: ±3%.

  • Waveform distortion and peak error ≤ 3%.

  • Operates from -10°C to +40°C; ≤ 85% RH.

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