High voltage VLF and DC tester

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High voltage VLF and DC tester
Index: WMGBS36VLF
High voltage VLF and DC tester
Description
Technical Specification
Files
  • Description

    The compact, robust and portable cable test set high voltage VLF and DC testers is used for testing of medium voltage cables in accordance to the standards IEEE400, IEC 0502-2, CENELEC HD 620 & 621 and DIN VDE 0276/620 & 621. The test is carried out with a low strain practice with VLF (very low frequency) test voltage of preferably 0.1 Hz. VLF Test enables detection of damages of the insulation within shortest test time. The high voltage VLF and DC testers can test cables with extruded insulation (XLPE-, PE-, EPR-insulation) as well as cables with paper-oil insulation (PILC). Cable sheath testing with direct 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 grade 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 circuit
    • Zero start interlocking
    • Protective circuit / indication in accord. with VDE 0104
    • Leakage current measurement during VLF test
  • Technical Specification
      S-24 VLF S-36 VLF S-44 VLF S-54 VLF
    index WMXXS24VLF WMXXS36VLF WMXXS44VLF WMXXS54VLF
    Power supply 230 V (±10%), 10 A, 50/60 Hz 230 V (±10%), 10 A, 50/60 Hz 230 V (±10%), 10 A, 50/60 Hz 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 0...36 kVRMS  VLF 0.1 Hz (option: 0.05 Hz + 0.02 Hz) ± 0...52 kV DC 0...44 kVRMS  VLF 0.1 Hz (option: 0.05 Hz + 0.02 Hz) ± 0...62 kV DC 0...57 kVRMS  VLF 0.1 Hz (option: 0.05 Hz + 0.02 Hz) ± 0...62 kV DC
    Voltage waveshapes VLF similar sine-wave, symmetrical, with True RMS measurement similar sine-wave, symmetrical, with True RMS measurement similar sine-wave, symmetrical, with True RMS measurement similar sine-wave, symmetrical, with True RMS measurement
    Voltage waveshapes DC direct voltage, negative and positive polarity direct voltage, negative and positive polarity direct voltage, negative and positive polarity direct voltage, negative and positive polarity
    Max. load (VLF) up to 60 km (15 μF at 24 kVRMS, 0.02 Hz)*
    *at a cable capacitance of approx. 0.25 μF/km

    up to 60 km (15 μF at 18 kVRMS, 0.02 Hz)*
    *at a cable capacitance of approx. 0.25 μF/km

    up to 58 km (14.6 μF at 19 kVRMS, 0.02 Hz)*
    *at a cable capacitance of approx. 0.25 μF/km
    up to 12.2 km (4.4 μF at 18 kVRMS, 0.02 Hz)**
    **at a cable capacitance of approx. 0.36 μF/km
    Overcurrent trip (DC) 10 mA 10 mA 10 mA 10 mA
    Discharge - integrated automatic discharge device max. 9000 J max. 12500 J max. 12500 J max. 12500 J
    Voltage measuring range -40...0...40 kVaccuracy ±1% -60...0...60 kVaccuracy ±1% -70...0...70 kVaccuracy ±1% -70...0...70 kVaccuracy ±1%
    Current measuring ranges ±0...100 μA / 1 mA / 10 mA ±0...100 μA / 1 mA / 10 mA ±0...100 μA / 1 mA / 10 mA ±0...100 μA / 1 mA / 10 mA
    Operating temperature -20…+45°C -20…+45°C -20…+45°C -20…+45°C
    Storage temperature -25…+70°C -25…+70°C -25…+70°C -25…+70°C
    Duty continuous operation continuous operation continuous operation continuous operation
    PC interface USB stick USB stick USB stick USB stick
    Construction in two parts: operation unit and high voltage unit in two parts: operation unit and high voltage unit in two parts: operation unit and high voltage unit in two parts: operation unit and high voltage unit
    Dimensions & weight - Operation unit 37 x 34 x 20 cm 17 kg 37 x 34 x 20 cm 17 kg 37 x 34 x 20 cm 17 kg 37 x 34 x 20 cm 17 kg
    Dimensions & weight - HV unit 40 x 41 x 24 cm 38 kg 40 x 44 x 24 cm 48 kg 40 x 44 x 24 cm 48 kg 40 x 44 x 24 cm 49 kg
  • Files