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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.

Data Sheets
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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
Frequency Response
Decoupling Range of 200 MHz– 2000 MHz
Mean Effective Height over 500 MHz-1500 MHz (mm)
> 6 mm
PD Output
N-Type Female connector with T Protector
Connector Circuit Impedance
50 Ω
Dimensions (D * H) in mm
120mm Dia * 130mm Height
Insertion depth of UHF antenna
47 mm
Sensor body material
Stainless steel
Standard Design for
Customized as per Transformer Flange Design (RM design and provide separate flange if needed)
Weight
<1.0 Kg
Installation Position
Transformer Tank, Inspection Cover, Transformer Dielectric Window
Oil Pressure
Up to 8 bar (at what temperature range? -15C to +120C)
Vibration Testing (IEC 60068-2-6)
20 sweeps of 9G force in 6 degree of freedom.
Ingress Protection (IP) (IEC 60529)
IP65
Ambient (Operating Temperature)
-40 ⁰C to +110 ⁰C
Storage Temperature
-40 ⁰C to +110 ⁰C
Operating Humidity
95% humidity at 50 ⁰C
Remarks
1. Use O-ring only, no gasket 2. Comes with protective case 3. SS304 and SS316 grade available based on request”

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