RFID Sensors

RFID sensors allow constant wireless monitoring of the temperature in medium-voltage switchgear, based on RFID (Radio Frequency Identification) technology in UHF band. They allow preventing and anticipating the trend of overheating of electrical equipment (critical temperature >120°C) due to overload, corrosion, loose connections and difficult environmental conditions and permit predictive maintenance of the electrical insulation, whose aging is particularly influenced by the increase in temperature. The sensors allow improving the performance of the system and extend its life cycle. C.R. Technology Systems has developed this solution in collaboration with Radio6ense, an innovative start-up, born as a spin-off of the University of Roma Tor Vergata (www.radio6ense.com).

Technical features
  • Digital Technology: digitalized measuring and transmission (possible integration into the SCADA system)

  • Wireless: tags communicate using electromagnetic fields

  • Smart functions (eg. RSSI): possibility of integrating additional sensors such as humidity level and vibrations

  • Extreme stability: thanks to simple debug tracing

  • In electrical switchgears, sensors are usually planced in critical points: busbar, contacts (fixed and removable) of the circuit-breaker, power cable conection bars

  • The hardware system includes: sensor, antenna, reader, modbus gateway

  • Security: transmission is accompanied by CRC Check, without risk of interference

Advantages
  • Adaptable: tags can be applied to any type of surface and environment, and in any weather condition

  • Reliable: tags are batteryless and do not require maintenance after their application

  • Modularity: sensors are equipped with a modular and scalable architecture. A large number of uniquely addressable sensors can be applied

  • Economic advantage: the technology based on radiofrequency allows lower costs than the traditional ones

  • Accuracy: sensors with ID prevent reading errors

  • Retrofit: sensors can be integrated in operational plants, enlarging their lifespan

  • Greater system efficiency: they allow minimizing system failures, thanks to integration with the IoT to plan predictive maintenance

  • Tailor-made products: thanks to the different shapes and surfaces of the sensors, and the possibility of integrating them in a variable number according to the customer's needs

Applications
  • Medium-voltage electrical switchgears

  • E-House / switching station

  • Transformation cabins

  • Mobile substations

  • Photovoltaic systems

  • Wind farms

  • Electricity generation and distribution systems

Documents
Dimension
Link Download
RFID sensors: applications in electrical switchgears
3.25 MB
RFID sensors: applications in Photovoltaic plants
3.02 MB
RFID sensors: applications in Wind farms
1.21 MB

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