Technology From: LumaSense

LumaSMART HV Transformer Winding Hot Spot Monitoring

The most critical parameter to monitor on a transformer is the temperature. Transformer life is directly related to the life of the insulating paper inside. The life of the insulating paper is directly related to temperature it is exposed to. The highest temperature on the windings is the Winding Hot Spot (WHS), where the insulating paper is most likely to break down first. Conventional methods only simulate or calculate this temperature, but not directly measure it.

The only way to know exactly the temperature at the WHS

is through the use of fibre optics. LumaSense, through their Luxtron brand, is the world leader in fibre optic measurement in transformers and the leading innovator of new robust technology. This innovation continues with the LumaSMART.

The LumaSMART is designed to provide real time transformer temperatures that can be used for protection and control at a cost effective price. Transformers are critical assets that often take the brunt of an overload condition and are the most likely to be damaged without proper control and protection. The drift-free, calibration-free nature inherent in the patented Fluoroptic^® technology makes the LumaSMART ideally suited for use in transformers as a reliable and cost-effective means of protection for these valuable assets.

LumaSense's Dip-Tip Rugged Probes™ are considered the industry standard and the highest quality, most reliable and robust winding temperature probes in the world, with >99% installation success. Based on the patented Fluoroptic measurement principle for its reliability, Dip-Tip Rugged probes are PFA Teflon-jacketed featuring five-layer protection in their fibre optic encapsulation, including Kevlar for crush protection. They are specially designed to withstand harsh environments without deteriorating physically or affecting the accuracy of the temperature measurement. Dip-Tip Rugged probes are calibration-free and remain accurate for the life of the transformer.

Key Features

• Design verification of transformers in the factory
• Allow for dynamic loading conditions
• Accurately and safely control overload situations
• Maximise the performance of your transformers and extend transformer life
• Ability to control cooling fans, oil circulation pumps and alarms/protective trips
• Enable condition based maintenance and inspections
• Enable Smart Grid interaction with your transformers

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Technology From: LumaSense

LumaSHIELD Monitoring for Distribution Transformers

The Lumashield Gallium Arsenide (GaAs)-based product line is the best alternative technology in the market to measure transformer temperature. It is best fit for utility companies that want to measure hot spot winding for smaller transformer of less than 20MVA and distribution transformers that have a smaller asset management budget.

Products

• Controller
• Monitor
• Fibre Optic Temperature Sensor OTG-T
• Fibre Optic Temperature Sensor OTG-T+
• Accessories

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