T&D World Magazine
Electronic Temperature Monitor Upgrades Analog Temperature Indicators

Electronic Temperature Monitor Upgrades Analog Temperature Indicators

Weschler's Transformer Advantage is an electronic temperature monitor designed to easily upgrade the analog temperature indicators on oil-filled transformers. Oil-filled transformers rated 1 MVA or higher are typically found outside large factories or processing plants. The Advantage provides a precise readout of oil and winding temperatures. It will also control cooling fans and activate alarms if temperatures exceed a safe operating level.

The Advantage has many features not available on analog gauges. Digital communication can link the Advantage to the plant SCADA network, for remote monitoring or data recording. Cooling can be started based on transformer load, time of day or season to provide additional transformer capacity on hot days. Internal diagnostics verify proper operation every 10 minutes (failures on analog gauges often go undetected for years).

Initial setup of the Advantage is easily done from the front panel or with a laptop computer. Units can also be preset at the factory for even quicker field startup. Replacement analog gauges are expensive, so the Advantage is a cost effective upgrade for one or two analog gauges. Some Advantage models can replace up to four analog gauges. Hundreds of option combinations are available, so each unit is configured to match the specific requirements of the user's site.

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