IEEE C57.154-2012 pdf free download
IEEE C57.154-2012 pdf free download.IEEE Standard for the Design, Testing, and Application of Liquid-Immersed Distribution, Power, and Regulating Transformers Using High-Temperature Insulation Systems and Operating at Elevated Temperatures. NOTE 1—Some of the limiting factors to be considered in determining the permissible maximum temperatures are: a) Aging of materials, such as cellulose-based insulation, which introduce moisture inside the transformer tank b)...
IEEE C57.150-2012 pdf free download
IEEE C57.150-2012 pdf free download.IEEE Guide for the Transportation of Transformers and Reactors Rated 1 0 000 kVA or Higher. 2. Normative references The following referenced documents are indispensable for the application of this document (i.e., they must be understood and used, so each referenced document is cited in text and its relationship to this document is explained). For dated...
IEEE C57.149-2012 pdf free download
IEEE C57.149-2012 pdf free download.IEEE Guide for the Application and Interpretation of Frequency Response Analysis for Oil-Immersed Transformers. Impulse voltage method: In the impulse voltage method, also referred to as LVI (Low Voltage Impulse) method, for making Frequency Response Analysis (FRA) measurements, the wide range of required frequencies is generated via one or more voltage impulses injected into one terminal....
IEEE C57.148-2011 pdf free download
IEEE C57.148-2011 pdf free download.IEEE Standard for Control Cabinets for Power Transformers. control cabinet: The primary cabinet(s) on a Class I or Class II transformer that contains the control panels for relay, metering, alarms, cooling controls, auxiliary power, and related circuits for user connection to the related systems in the substation. control cabinet designer: The engineer or designer responsible for...
IEEE C57.140-2006 pdf free download
IEEE C57.140-2006 pdf free download.IEEE Guide for Evaluation and Reconditioning of Liquid Immersed Power Transformers. 5.7 Partial discharge detection Partial discharge (PD) occurs in an insulation system when a localized breakdown of the insulation medium causes a redistribution of charge within the system. PD generates low-amplitude voltage and current pulses that are within radio range of frequency. Several techniques are...
IEEE C57.135-2011 pdf free download
IEEE C57.135-2011 pdf free download.IEEE Guide for the Application, Specification, and Testing of Phase-Shifting Transformers . In publishing and making this document available, the IEEE is not suggesting or rendering professional or other services for, or on bchalf of, any person or entity. Nor is the IEEE undertaking to perform any duty owed by any other person or entity to...
IEEE C57.123-2010 pdf free download
IEEE C57.123-2010 pdf free download.IEEE Guide for Transformer Loss Measurement. 2. References This recommended practice shall be used in conjunction with the following publications. If the following publications are superseded by an approved revision, the revision shall apply. IEEE Std C57.12.00 -2000, IEEE Standard General Requirements for Liquid-Immersed Distribution, Power, and Regulating Transformers. 3, 4 IEEE Std C57.12.01 ...
IEEE C57.105-2019 pdf free download
IEEE C57.105-2019 pdf free download.IEEE Guide for Application of Transformer Connections in Three-Phase Electrical Systems. 4.1.2 Types of sources The primary supply may be either an ungrounded, uni-grounded, effectively grounded, or impedance- grounded source. An ungrounded or uni-grounded supply may have a grounded shield wire or cable sheath, but such conductor should not be mistaken for a neutral conductor if...
IEEE C57.100-2011 pdf free download
IEEE C57.100-2011 pdf free download.IEEE Standard Test Procedure for Thermal Evaluation of Insulation Systems for Liquid-Immersed Distribution and Power Transformers. 3. Definitions For the purposes of this document, the following terms and definitions apply. The IEEE Standards Dictionary: Glossary of Terms & Definitions should be referenced for terms not defined in this clause. 4 3.1 Industry-proven insulation system Decades of...
IEEE C57.13-2008 pdf free download
IEEE C57.13-2008 pdf free download.IEEE Standard Requirements for Instrument Transformers. IMPORTANT NOTICE: This standard is not intended to assure safety, security, health, or environmental protection in all circumstances. Implementers of the standard are responsible for determining appropriate safety, security, environmental, and health practices or regulatory requirements. This IEEE document is made available for use subject to important notices and legal...