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The S-24 VLF high voltage insulation tester is a compact, robust and portable kit for testing medium voltage cables according to IEEE400, IEC 60502-2, CENELEC HD 620 and 621 and DIN VDE 0276/620 and 621. The test is carried out using the low electrical stress method, with a VLF (Very Low Frequency) voltage of 0.1 Hz.  

 

The VLF test is the fastest way to detect insulation damage. The S-24 VLF instrument can test cables with plastic insulation (XLPE, PE-, EPR) as well as paper and oil insulation (PILC). Testing with DC voltage is also possible.

 

Features

  • Extremely compact high-power VLF test device
  • Easily portable for 1-2 people
  • Simple operation: menu-assisted control with industrial class OLED display
  • Fully automatic test sequence
  • Integrated timer 1-300 min with automatic tripping
  • Integrated breakdown detection
  • Integrated fault time detection
  • Voltage measurement direct at HV output
  • Protective ground connection
  • High voltage start key interlock
  • Protective circuit / indication in accord. with EN 50191
  • Leakage current measurement during VLF test

 

Optional features

  • Data logging (USB stick) for VLF test sets
  • Frequency extension: 0.05 + 0.02 Hz
  • Customized test cables
  • Transport case

 

Power supply230 V (±10%),10 A, 50/60 Hz

 

Output voltage0…24 kVRMS VLF 0.1 Hz (option: 0.05 Hz + 0.02 Hz) ± 0…34 kV DC

 

Voltage waveshape

 

VLFsimilar sine-wave, symmetrical, with True RMS measurement
DCdirect voltage, negative and positive polarity

 

Overcurrent trip (DC)10 mA

 

Max. testable cable length, max. capacitance (VLF)up to 60 km (15 µF at 24 kVRMS, 0.02 Hz)* 

*at a cable capacitance of approx. 0.25 µF/km

 

Max. load at max. output voltage (VLF) and 0.1 Hz5 µF at 24 kVRMS

 

Discharge - integrated automatic discharge devicemax. 9000 J

 

Voltage measuring range-40…0…40 kV accuracy ±1%

 

Current measuring ranges±0…100 µA / 1 mA / 10 mA

Sonel S-24 VLF High Voltage Tester 24kV VLF HiPot Tester 24kVrms

  • Please contact us for information on this product: info@stratatek.com

    Comes with a 1 year (12 month) warranty from the manufacturer.

     

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