Highly sensitive and accurate Partial Discharge sensor for measuring ultra high-frequency signals emitted by partial discharge activity inside Transformers.
UHF PD sensing technology has proved to be the best technology in detecting partial discharge activity inside transformer tank and real time monitoring of PD activity. Rugged Monitoring has developed the most advanced UHF PD sensor for Transformers, capable of detecting smallest PD signals.
USENS-D is an Ultra High Frequency (UHF) antenna that is capable of detecting smallest UHF frequencies emitted by the partial discharge (PD) activity. The sensors are suitable for all types of Transformers, and easy installation on the transformer drain valves. The IP65 rated ingress protection allows sensor to be installed at Outdoor installations. Their wide band (200 - 2000 MHz) frequency response and high sensitivity (up to -90dBm) enables lower cost of PD monitoring system and higher ROI (Return on Investment).
Rugged Monitoring USENS-D is designed to fit into most of the Transformer Valves and all voltage levels. The sensors can also be customized according to Transformer Valve design and customer technical requirements. The sensors comes with built-in overvoltage projection and N-type connection. The sensors can be connected with any UHF based PD mentoring system regardless of manufacturers.
| UHF Frequency Response | 200 - 3000 MHz |
| Sensitivity | up to -90 dBm |
| Average Effective Height over 500MHz – 1500MhHz | 15 mm+ |
| Min. Effective Height over 500Mhz – 1500Mhz | 6 mm+ |
| Withstand Voltage | up to 1500 kV |
| Output | N-Type connector; Customized option available |
| Connector Circuit Impedance | 50 Ω |
| Pressure Testing | up to 10bar |
| Vibration Testing | Suitable for HV - Transformer applications |
| Ingress Protection (IP) | IP68 |
| Ambient (Operating Temperature) | -60 0C to +150 °C |
| Storage Temperature | -60 0C to +150 °C |
| Operating Humidity | 95% humidity at 50 °C |
| Dimensions | Customized as per Transformer Valve design |
| Weight | app. 2.0 KG; Customized as per customer requirements |
| Install Position | Inside drain valve of Transformer |
| Signal Cable | Very low attenuation UHF (Coax) cable |
