VLF Test Set - KPG 24kV VLF
The portable cable test set KPG 24kV VLF is used for testing of medium voltage cables in accordance to the standards IEC 60502-2, CENELEC HD 620 & 621, DIN VDE 0276/620 & 621 and IEEE 400.
Test is carried out with a low strain practice with VLF (very low frequency) test voltage of preferably 0.1Hz.
VLF testing enables detection of damages of insulation within shortest test time.
The KPG 20kV VLF 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.
Application:
- VLF Testing
- DC Testing
- Sheath Testing
| Technical data | KPG 24kV VLF |
| Power supply | 230 V (± 10%), 10 A, 50/60 Hz |
|---|---|
| Output voltage | 5...24 kVrms (34 kVpeak), 0.1 Hz VLF (0.05 + 0.02Hz optional) ± 0...34 kV DC |
| Voltage waveshapes | VLF: similar sine-wave, symmetrical, with true R.M.S. measurement DC: direct voltage, negative and positive polarity |
| max. load (VLF) |
5.0 µF at 24 kVrms , 0.1 Hz (app. 20 km)* *at a cable capacitance of 0.25 μF/km |
| Overcurrent trip (DC) | 10 mA |
| 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 |
| Operating temperature | -20 ... +45°C |
| Duty | Continuous operation |
| PC interface | USB flash drive |
| Construction | in two parts, Operation unit and High Voltage unit |
| Weight Operation unit HV unit |
17 kg 38 kg |
| Dimensions (W x H x D) Operation unit HV unit |
37 x 34 x 20 cm 40 x 41 x 24 cm |
Characteristics
- Extremely compact high-power VLF test device
- Easily portable from 1-2 person
- Simple operation
- Menu-assisted control with industrial grade OLED display
- Fully automatic test sequence
- Integrated timer with automatic tripping
- Integrated breakdown detection
- Integrated fault time detection
- Voltage measurement direct at HV output
- Protective ground circuit
- Protective circuit / indication in accord. with VDE 0104
- Leakage current measurement during VLF test
Scope of supply
- Operation unit with protective bag and cable storage
- High Voltage unit
- HV-connecting cable (shielded), standard length 5m
- Connecting cable, HV unit to Operator unit, length 3m
- Ground cables
- User manual
Options / Accessories
- Data logging (USB) for VLF test sets
- Frequency extension: 0.05 + 0.02Hz
- Customized test cables
- Transport case