Mechanical Systems

Parijat RFID HotSpot Detection System (PRHD) NGSH-0706 

Space for accommodating the additional equipment in the modern-day compact substation panels is  very crucial, and Wireless Sensor based Detection Solution system is having a great advantage in  monitoring of Substation (Indoor) Equipment. Monitoring hotspots using passive battery-less UHF  RFID sensor Tags is a great method to catch problems before they become problematic. The  advantages of Radio Frequency Identification (RFID) sensor tags include battery-free operation and  cheap cost, making it ideal for long-term temperature monitoring in substations. They enable for the  prevention and prediction of electrical equipment overheating (critical temperature >120°C) owing  to overload, corrosion, loose connections, and challenging environmental conditions, as well as  predictive maintenance of electrical insulation, whose lifespan is impacted by temperature.   

PCI has developed a purpose-built tailored solution PRHD based on the inexpensiv hot-spot recognition from low distances is critical & desirable. PRHD can identify different range of  temperatures and associated potentially dangerous circumstances and help take necessary  precautions based on temperature variations. The hotspot is determined by the threshold set in  PRHD. Passive Wireless Temperature Sensors (Battery less) will be suitable for mounting direct on  live installation up-to 33 KV systems or higher.  

PRHD is designed to take the temperature readings regularly of all possible hot-spot sites (often  junctions between components in a switchyard/substation). If it surpasses the threshold, it is  classified as a hot spot, and a report/alarm is generated. 

Data is collected over time at a near distance from the location and analysed by PRHD to detect  patterns and irregularities with continuous monitoring. 
APPLICATIONS 

• Switchgears for medium-voltage electrical systems 

• Switching station / E-House 

• Cabins for transformation 

• Substations on wheels 

• Solar power systems 

• Wind turbines 

• Systems for electricity generation and distribution 

Features  

• First and for most important safety feature of the solution is it avoids the prospect of  damage to the equipment and humans in quite earlier stage by detecting the formation of  hotspots. 

• Identify transient thermal event which were not detectable with manual inspections and  hence prone to manual error.  

• Provides quantitative temperature readout and remote visual monitoring for plant  management 

• Reduced maintenance costs and enhanced personnel safety. 

• Sensor are battery less and wireless. 

• Accuracy of measurement system is ±5 degree C or better. 

• Sensor used are calibration free devices hence durable over Longer Life. 

• The size of sensors is suitable to be installed in switchgear without compromising any  clearances as per relevant IEC/IS standard. 

• Remotely monitor multiple, substations from a central location

• Improved reliability of electric power delivery by reducing the risk of breakdown such as  blackouts, brownouts and the service requirement shall be turned in to planned preventive  maintenance.  

• Some customers report an insurance premium discount because of the increased reliability