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Энергетические кабели - Испытания и диагностика Диэлектрическая диагностика кабеля OWTS HV 250
OWTS HV 250
Серия: SebaKMT
запросить ценуPartial Discharge Diagnosis System for HV Cables up to 250 kV
Benefits
- Non-destructive testing and diagnosis using damped AC voltages
- Advanced PD detection and PD site localisation
- Integrated dielectric losses measurement tan ?
- Portable test system, compact design and low weight
- Real-time analysis and reporting using Explorer software
Description
The oscillating wave test system (OWTS) is used to identify, evaluate and locate partial discharge (PD) faults in cable insulation and accessories in all types of high voltage power cables. The OWTS system can both be used for commissioning testing of newly installed cables and diagnostic testing on aged cables.
The system consists of a notebook as a control unit and the HV part. The HV part contains of a HV source with an integrated electronic switch and a resonance inductor to generate a damped AC test voltage. The HV divider and the coupling capacitor are integrated in a separate unit together with the embedded controller for the digital data acquisition and PD signal processing. The storage, analysis and evaluation of the PD signals takes place in the notebook and can be done either on site or in the office.
Features
- PD diagnosis by means of damped AC voltage (DAC)
- PD level measurement according to IEC 60270
- Adjustment features to optimize detection sensitivity
- Automatic calibration mode with joint location feature
- Real-time data processing
- Menu-driven unit to operate the test sequence
- Portable design, low weight, easy set-up on-site
Технические характеристики:
| Max. DAC output voltage | 250 kVpeak / 177 kVrms |
| DAC frequency range | 20 Hz … 350 Hz |
| Capacitance range | 0.025 µF … 8 µF |
| HV charging current | 8 mA |
| PD measuring range | 1 pC … 100 nC |
| PD level detection | acc. to IEC 60270 |
| Bandwidth for PD-localisation | 150 kHz … 20 MHz |
| Dissipation factor δ | 0.1 % … 5 % |
| Power supply | 198 … 268 V 50 / 60 Hz |
| Operating temperature | -10 °C … +40 °C |
| Weight | app. 600 kg |
| Components | |
| Unit 1 | HV source unit |
| Unit 2 (4 modules) | HV switch unit |
| Unit 3 | HV coil unit |
| Unit 4 | HV divider and PD-analyzer |
| Unit 5 | Notebook |
Документация:
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