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IEEE Std C57.147-2018 (Revision of IEEE Std C57.147-2008) - IEEE Guide for Acceptance and Maintenance of Natural Ester Insulating Liquid in Transformers

Description: Assistance to equipment manufacturers and service companies to evaluate the suitability of unused natural ester insulating liquids being received from suppliers is provided in this guide. Information for transformer operators in evaluating and maintaining natural ester insulating liquids in serviceable condition is also provided.
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