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Overheated Transformer

"Transformer insulation is generally rated for 220u00b0C but may be lower for some designs including control or encapsulated. Standards permit the temperature of

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Overheated Transformer

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  1. Overheated Transformer Analyzing the pwer quality of overheated transformer with Fluke Power Quality Analyzer & Multimeter Transformer insulation is generally rated for 220°C but may be lower for some designs including control or encapsulated. Standards permit the temperature of the transformer enclosure cover to be 65°C over ambient. When temperatures exceed the rating for the insulation system or enclosure, overheating occurs. Burned, darkened or damaged insulation may be apparent along with a burnt smell. The hottest part of a transformer is the coil near the top of the core. Energized transformers should not be touched. If the insulation is damaged or smoke is visible, the unit may need to be returned for testing and replaced or repaired.

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