The DDX 9121b is an advanced Partial Discharge & Radio Interference Voltage detector. With the DDX 9121b, users can test and generate reports from a single computer. The DDX 9121b is modular and fits a wide range of PD detection applications, such as simultaneous PD and RIV testing, DC PD testing, and site location in power cables. One measuring input to simultaneous 9 measuring inputs are possible. Traditional partial discharge measurements according to IEC 60270 or RIV measurement or PD under DC are covered. Pass/Fail test of advanced phase resolution time analysis are possible as well. The DDX 9121b comprises 1 of 9 stackable unit(s) communicating with a remote PC (optional), which handles the display of PD information using the DDX 9121b/SWR data acquisition and remote control software. The software displays test results and generates reports. The DDX9121b increases the laboratory sensitivity as it is equipped with digital filters allowing the measurement frequency band to be shifted into a less noisy range and suppressing frequency dependent noise.
DATA SHEET: DDX 9121b Advanced PD Detector
DDX 9121b Features
- AC and DC measuring modes
- User defined measuring band
- Modular design, 1 to 9 detectors – easily upgradable
- Embedded switch with 4 PD inputs per detector
- Simultaneous RIV and PD reading
- Phase Resolved PD (PRPD) patterns like Φ-q-n (phase, magnitude, occurrence)
- High resolution spectrum analyzer with oscilloscope
- Data acquisition and test report generation
- PD Site Location (SL) on cables
- Reduces ground noise – The built-in frequency spectrum analysis and selectable frequency band lets the user optimize the setup in seconds
- Unit can be easily upgraded (RIV, 4 inputs switch, simultaneous PD readings, PD on DC, etc.)
- Reduces training time – The Windows based software makes the use of the device easier than ever. Operators can start using the device in minutes.
- PD interpretation – The phase resolved analysis and recording capabilities allow for future data analysis.
- Easy to integrate into test systems – Its compact design, standard BNC measuring cables, and remote control capabilities make it ideal for an integrated PD test system together with an AC power supply.