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The scope of this guide covers mineral insulating oil commonly defined as transformer oil; definition and description of reclaiming procedures; the test methods used to evaluate the progress and end point of the reclamation process, and what criteria recommended for the use of reclaimed mineral oils are considered suitable. This guide does not cover the use of mineral oil in new apparatus under warranty.

定价： 65元 / 折扣价： 56 元

This guide applies to mineral oil used in transformers, load tap changers, voltage regulators, and reactors. The guide discusses the following: a) Analytical tests and their significance for the evaluation of mineral insulating oil. b) The evaluation of new, unused mineral insulating oil before and after filling into equipment. c) The evaluation of in-service mineral insulating oil. d) Health and environmental care procedures for mineral insulating oil. e) Methods of handling and storage of mineral insulating oil. The characteristics of the mineral oils discussed in this guide do not include reclaimed or reconditioned oil installed in new equipment. The qualities of such oil, if used, should be agreed upon by the manufacturer and the user of the equipment.

定价： 65元 / 折扣价： 56 元

This guide applies to mineral oil-immersed transformers and addresses: a) The theory of combustible gas generation in a transformer b) The interpretation of gas analysis c) Suggested operating procedures d) Various diagnostic techniques, such as Key Gases, Rogers Ratios, Duval Triangle, and other methods e) Case studies and examples f) Evaluation criteria and guidelines g) A bibliography of related literature

定价： 137元 / 折扣价： 117 元

This guide provides recommendations for loading mineral-oil-immersed transformers and step-voltage regulators with insulation systems rated for a 65 °C average winding temperature rise at rated load. This guide applies to transformers manufactured in accordance with IEEE Std C57.12.001 and tested in accordance with IEEE Std C57.12.90, and step-voltage regulators manufactured and tested in accordance with IEEE Std C57.15. Because a substantial population of transformers and step-voltage… read more regulators with insulation systems rated for 55 °C average winding temperature rise at rated load are still in service, recommendations that are specific to this equipment are also included. read less

定价： 175元 / 折扣价： 149 元

定价： 149元 / 折扣价： 127 元

This guide provides recommendations for loading mineral-oil-immersed transformers and step-voltage regulators with insulation systems rated for a 65 °C average winding temperature rise at rated load. This guide applies to transformers manufactured in accordance with IEEE Std C57.12.00 and tested in accordance with IEEE Std C57.12.90, and step-voltage regulators manufactured and tested in accordance with IEEE Std C57.15. Because a substantial population of transformers and step-voltage… read more regulators with insulation systems rated for 55 °C average winding temperature rise at rated load are still in service, recommendations that are specific to this equipment are also included. read less

定价： 118元 / 折扣价： 101 元

This document provides guidance in the application of dissolved gas analysis (DGA) to transformers and reactors subjected to factory temperature rise tests. This document consists of evaluation procedures and guidelines for acceptable levels of gases generated in conventional mineral oil-fi lled transformers and reactors during factory temperature rise tests.

定价： 56元 / 折扣价： 48 元

This guide covers general recommendations for loading mineral-oil-immersed power transformers manufactured in accordance with ANSI/IEEE C57.12.00-1980 [lP and having a maximum nameplate rating in excess of 100 MVA (three phase) or 33+ MVA (single phase). Such transformers have an average winding rise of 65 DC maximum and a hottestipot rise of 80 DC maximum at rated load. NOTE: When this guide is to be used for transformers purchased prior to publication of the guide, the applicability of 2.5… read more and 4.3 should be checked with the manufacturer. Also see Appendix D read less

定价： 65元 / 折扣价： 56 元

This guide covers general recommendations for lading mineral-oil power transformers, manufactured in accordance with ANSI C57.12.10-1976 and ANSI C57.12.30-1977 and other oil-insulated power transformers up to and including 100 MVA maximum nameplate rating. It is based mostly on aging of the winding insulation. Loading of transformers larger that 100 MVA may be limited by factors other than insulation aging such as stray flux, etc. When it is known that such limitations do not exist and… read more insulation aging rather that oil temperature, gassing, tank heating, etc is the controlling factor, this guide may be used. This guide may also be used for askarel filled transformers. read less

定价： 55元 / 折扣价： 47 元