Patial Discharge Test System with Oscillating Wave Method
General Information
GDOWS-10 Oscillating Wave Test System (OWTS) for On-site PD Diagnostics of MV Cables is an integrated partial discharge location and management system. Test frequency varies from 50Hz to hundreds of Hertz under damping AC voltage.
Damping AC voltage in the test can reach 28kV, combined with advanced hardware and software for diagnostics, mainly including:
Latest transistor and laser control technology, such as HV crystal switch;
Electronic components, digital signal processing, such as HV crystal switch and HV source;
Digital signal processor and filter;
Wireless and wired connection, built-in computer system includes PD detector, control unit and PD analyzer;
Latest cloud computing technology, various problems can be quickly solved.
Technical Specification
| Max. DAC output voltage | 28kVpeak / 20kVrms |
| DAC frequency range | 50 ~ 800Hz |
| Capacitance of cable | 0.025 ~ 3uF |
| HV charging current | 10mA |
| PD measurement range | 1pC ~ 100nC |
| Reference standard | IEC60270 |
| Bandwidth of PD location | 150kHz ~ 45MHz |
| Dielectric loss factor | Tan δ 0.1% ~ 10% |
| Power supply | 110~240VAC, 50~60Hz |
| Working temperature | -10ºC ~ +40ºC |
| Weight | 65kg |
Frequently Asked Questions
1. What is the primary application of the GDOWS-10?
It is designed for on-site partial discharge (PD) diagnostics, location, and management of medium voltage (MV) cables using the oscillating wave method.
2. What is the maximum output voltage for testing?
The system provides a damping AC voltage (DAC) that can reach up to 28kV peak or 20kV rms.
3. What frequency range does the system operate at?
The DAC frequency range varies from 50Hz up to 800Hz, depending on the test conditions.
4. Does the system support wireless operation?
Yes, the GDOWS-10 features both wireless and wired connections and includes a built-in computer system for control and analysis.
5. What is the partial discharge measurement sensitivity?
The PD measurement range is between 1pC and 100nC, compliant with the IEC60270 reference standard.
6. What environmental conditions can the system withstand?
The device is built to operate in temperatures ranging from -10ºC up to +40ºC.
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