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 supply | 230 V (±10%),10 A, 50/60 Hz |
Output voltage | 0…24 kVRMS VLF 0.1 Hz (option: 0.05 Hz + 0.02 Hz) ± 0…34 kV DC |
Voltage waveshape
VLF | similar sine-wave, symmetrical, with True RMS measurement |
DC | direct 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 Hz | 5 µF at 24 kVRMS |
Discharge - integrated automatic discharge device | max. 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.