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This IEEE Standards product is part of the C57 family on Power Distribution and Regulating Transformers. Abstract: Recommendations regarding oil tests and evaluation procedures are made in this guide;references are made to methods of reconditioning and reclaiming conventional petroleum (mineral) dielectric insulating oils;the levels at which these methods become necessary; and the routines for restoring oxidation resistance, where required, by the addition of oxidation inhibitors. The intent is to assist the power equipment operator in evaluating the serviceability of oil received in equipment, oil as received from the supplier for lling new equipment at the installation site, and oil as processed into such equipment; and to assist the operator in maintaining oil in serviceable condition. The mineral oil covered is used in transformers, reactors, circuit breakers, load tap changers, and voltage regulators. Keywords :insulation testing , load tap changers , oil circuit breakers , oil insulation , power distribution maintenance , power transformer insulation , reactors , transformers , voltage regulators , IEEE C57.106.

Electric insulators and insulation. --- Dielectrics --- Bushings --- Insulation (Electric) --- Electric resistance --- Insulating materials

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Electric insulators and insulation. --- Insulating materials. --- Building materials --- Bushings --- Insulation (Electric) --- Electric resistance --- Insulating materials --- Dielectrics

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Electric insulators and insulation --- Electrical engineering --- Electrical & Computer Engineering --- Electrical Engineering --- Engineering & Applied Sciences --- Bushings --- Insulation (Electric) --- Electric resistance --- Insulating materials --- Dielectrics --- Materials

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Electrical, dimensional, and mechanical characteristics and certain safety features of single-phase, 60 Hz, mineral-oil-immersed, self-cooled, distribution transformers with separable insulated high-voltage connectors are covered. Ratings, testing, and construction are discussed. These transformers are generally used for step-down pruposes from an underground primary cable supply and are suitable for occasional submerged operation. The intent is to provide a basis for determining their performance, interchangeability, and safety, and for their selection. This standard does not cover the electrical and mechanical requirements of accessory devices that may be supplied with the transformer.

Electric transformers --- Electric insulators and insulation --- Transformers, Electric --- Electric currents --- Electric machinery --- Electric motors --- Bushings --- Insulation (Electric) --- Electric resistance --- Insulating materials --- Dielectrics --- Standards. --- Safety measures.

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Around 80% of electrical consumption in an industrialised society is used by machinery and electrical drives. Therefore, it is key to have reliable grids that feed these electrical assets. Consequently, it is necessary to carry out pre-commissioning tests of their insulation systems and, in some cases, to implement an online condition monitoring and trending analysis of key variables, such as partial discharges and temperature, among others. Because the tests carried out for analysing the dielectric behaviour of insulation systems are commonly standardised, it is of interest to have tools that simulate the real behaviour of those and their weaknesses to prevent electrical breakdowns. The aim of this book is to provide the reader with models for electrical insulation systems diagnosis.

Electric insulators and insulation --- Mathematical models. --- Testing. --- Bushings --- Insulation (Electric) --- Electric resistance --- Insulating materials --- Dielectrics --- Engineering --- Physical Sciences --- Engineering and Technology --- Electrical and Electronic Engineering --- Circuit Design