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IEEE C57.147-2008

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IEEE C57.147-2008 IEEE Guide for Acceptance and Maintenance of Natural Ester Fluids in Transformers

standard by IEEE, 07/11/2008

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Full Description

Scope

This guide recommends tests and evaluation procedures, as well as criteria and methods of maintenance, for natural ester-based transformer insulating fluids. These base fluids are also known as vegetable seed oils. Methods of reconditioning natural ester-based insulating fluids are also described. Where instructions given by the transformer or fluid manufacturer differ from those given in this guide, the manufacturer s instructions are to be given preference.

Purpose

There is growing interest in and usage of natural ester dielectric coolants for transformer applications. These fluids are currently being used in the range of small distribution class transformers to medium power transformers. They are being applied in new equipment and for retrofilling existing equipment. It is important that a guide be developed to assist the transformer operator in maintaining the fluid in serviceable condition. This guide, therefore, recommends standard tests and evaluation procedures, methods of reconditioning and reclaiming natural ester fluids, and the analysis results at which reprocessing becomes necessary. It will also address the routines for restoring resistance to oxidation, where desired, by the addition of inhibitors.

Abstract

New IEEE Standard - Active.This guide recommends tests and evaluation procedures, as well as criteria and methods of maintenance, for natural ester-based transformer insulating fluids. These base fluids are also known as vegetable seed oils. Methods of reconditioning natural ester-based insulating fluids are also described. Where instructions given by the transformer or fluid manufacturer differ from those given in this guide, the manufacturer's instructions are to be given preference.

Product Details

Published: 07/11/2008 ISBN(s): 9780738154275, 9780738154268, 9781504410977 Number of Pages: 33File Size: 1 file , 550 KB Product Code(s): STD95796, STDPD95796, STDPL95796