Transformer Winding and Switchgear Hotspot Measurement

Power and Distribution Industries Tempsens offered fiber optic temperature sensing (FOTS) is ideal for monitoring the temperature of oil-filled transformers and cast resin transformers. Temperature sensors from Tempsens are completely immune to EMI/RFI and high-voltage environments, making them suitable for monitoring transformer winding hot spots. For power and distribution equipment, Tempsens has developed accurate, real-time smart grid temperature monitoring solutions. Challenges Faced By Our Customers For a long time, fiber optic temperature monitoring systems have been used in high-voltage oil-filled transformers and are now the preferred method of temperature monitoring. Transmission and distribution (T&D) companies can benefit from cost-effective fiber optic sensors. Utilities can operate the transformer at peak capacity by monitoring temperatures at each transformer winding hot spot, avoiding overload conditions that can drastically reduce the transformer’s life. This efficiency in transmission throughput and service life can result in annual savings of a few million dollars, making direct winding temperature sensing a must-have feature. Tempsens FOTS solution is already being used in cast resin transformers, thanks to its solutions and industry-leading cost points. Smart grid transformer temperature monitoring is made even more attractive by Tempsens low-cost fiber optic temperature sensing technology. Fiber optic temperature probes for oil-filled transformers are made of high-dielectric strength materials like Teflon and polyimide coated silica fibre to withstand long-term immersion in transformer oil and kerosene desorption during production. The fiber sensor signal is transmitted from the Tempsens optical temperature transmitter to the probe installed directly at the transformer winding hot spot locations via a special tank wall feed-through. The temperature outputs from Tempsens fiber optic temperature transmitters are fed into real-time monitoring and control software via an external control cabinet. Operators can monitor load conditions in real-time with Tempsens optical temperature sensors, reducing waste energy production and lowering environmental impact. Our State Of Art Solution To Customers Tempsens fiber optic temperature sensors are ideal for oil-filled transformer and cast resin transformer temperature monitoring. FSENZ’s temperature sensors are completely immune to EMI/RFI and high-voltage environments making them ideal for transformer winding hot spot temperature monitoring. Tempsens has developed accurate, real-time, smart grid temperature monitoring solutions for power and distribution equipment. Fiber optic temperature sensors have been installed in high-voltage oil-filled transformers for over twenty years and are now considered the preferred method of transformer monitoring. The benefit that fiber optic sensors offer to transmission and distribution (T&D) companies is financially significant. By monitoring temperatures at each transformer winding hot spot, utilities are able to operate the transformer at peak capacity, without extending into overload conditions that can dramatically reduce the life of the transformer. This efficiency both in transmission throughput and service life can translate into savings of tens of thousands of rupees annually, and make direct winding temperature sensing capability a must-have. Now, with solutions and industry-leading cost points, Tempsens fiber optic temperature sensors are being deployed in cast resin transformers. Customer Benefits Tempsens low-cost fiber optic temperature sensing technology makes smart grid transformer temperature monitoring even more compelling. For oil-filled transformers, fiber optic temperature probes are designed from high-dielectric strength materials such as Teflon and polyimide coated silica fiber so that they can withstand long-term immersion in transformer oil and kerosene desorption during manufacturing. A special tank wall feed-through is used to transmit the fiber sensor signal from the OSENSA optical temperature transmitter to the probe installed directly at the transformer winding hot spot locations. Tempsens fiber optic temperature transmitters are mounted in an external control cabinet with the temperature outputs fed into real-time monitoring and control software. With Tempsens optical temperature sensors installed, operators can monitor load conditions in real-time, reducing waste energy production and reducing the environmental burden.