USENS-T

UHF PARTIAL DISCHARGE SENSOR

Real-Time Partial Discharge Detection for Transformer Tank Applications 

Designed for precision and durability, the UHF PD sensor accurately monitors partial discharge activity in oil-filled and dry-type transformers and reactors. Its high sensitivity ensures early detection of potential issues, enabling proactive maintenance and enhanced asset reliability.

Features
  • Highly Sensitive
  • Wide Band Frequency Response
  • IP68 Protection
  • Leak-Proof Sensor
  • Integrated Overvoltage Protection
  • High Dielectric Strength
  • Customized Design
Benefits
  • Enhanced Compatibility
  • Reliable and Safe Operations
  • Longer Operational Lifespan
  • Cost-Effective Monitoring
  • Low Signal-to-Noise Ratio
  • Rugged and Durable
Applications
  • Power Transformer PD Testing and Monitoring
  • Reactor PD Testing and Monitoring
  • Distribution Transformer PD Testing and Monitoring
  • Continuous Online PD Monitoring
  • Periodic PD Testing and Measurements
  • High Voltage Testing during Commissioning
Technical specifications
UHF Frequency Response

200 – 3000 MHz

Sensitivity

up to -90 dBm

Average Effective Height over 500MHz – 1500MhHz

25mm+

Min. Effective Height over 500Mhz – 1500Mhz

6 mm+

Output

N-Type connector; Customized option available

Connector Circuit Impedance

50 Ω

Oil Pressure

up to 10bar

Vacuum Tightness

< 0.10 mbar, Leakage rate < 0.0001 mbar/sec

Vibration Testing

Suitable for HV – GIS and Transformer applications

Ingress Protection (IP)

IP-68

Ambient (Operating Temperature)

-60 °C to +150 °C

Storage Temperature

-60 °C to +150 °C

Withstand Voltage

up to 1500 kV

Operating Humidity

95% humidity at 50 °C

Dimensions

Customized as per Transformer Flange Design

Weight

app. 1.5 KG; Customized as per customer requirements / Transformer Design

Install Position

Transformer Tank, Inspection Cover, Transformer Dielectric Window

Signal Cable

Very low attenuation UHF (Coax) cable

Ordering Code

Our Presence Across the Globe

Head Office

CANADA
1415 Frank-Carrel, Suite
230, Quebec, QC – G1N
4N7, CANADA