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Power and Energy Standards

Displaying results 1081 - 1120 of 1304
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C57.12.38-2009 - Pad-Mounted-Type, Self-Cooled, Single-Phase Distribution Transformers; High Voltage, 34 500 GrdY/19 920 V and Below, Low Voltage, 240/120 V; 167 kVA and SmallerThis standard covers certain electrical, dimensional, mechanical characteristics and safety requirements of single-phase, 60 Hz, liquid-filled,... Superseded Standard
C57.12.38-2014 - Pad-Mounted-Type, Self-Cooled, Single-Phase Distribution Transformers 250 kVA and Smaller: High Voltage, 34 500 GrdY/19 920 V and Below; Low Voltage, 480/240 V and BelowCertain electrical, dimensional, and mechanical characteristics are covered in this standard, and certain safety features of single-phase, 60-Hz,... Active Standard
C57.12.40-2006 - Requirements for Secondary Network Transformers, Subway and Vault Types (Liquid-Immersed)This standard is intended for use as a basis for establishing the performance, interchangeability, and safety of the equipment covered and to... Active Standard
C57.12.40-2011 - Network, Three-Phase Transformers, 2500 kVA and Smaller; High Voltage, 34 500 GrdY/19 920 and Below; Low Voltage, 600 V and Below; Subway and Vault Types (Liquid Immersed)This standard is intended for use as a basis for establishing the performance, interchangeability, and safety of the equipment covered and to... Active Standard
C57.12.44-1994 - Standard Requirements for Secondary Network ProtectorsThe performance, electrical and mechanical interchangeability as well as the safety of the equipment are covered in this IEEE standard. The proper... Superseded Standard
C57.12.44-2000 - Standard Requirements for Secondary Network ProtectorsThe performance, electrical and mechanical interchangeability, and the safety of the equipment are covered. The proper selection of such equipment... Superseded Standard
C57.12.44-2005 - Standard Requirements for Secondary Network ProtectorsThe performance, electrical and mechanical interchangeability, and the safety of the equipment are covered. The proper selection of such equipment... Superseded Standard
C57.12.44-2014 - Standard Requirements for Secondary Network ProtectorsThe performance, electrical and mechanical interchangeability, and the safety of the equipment are covered. The proper selection of such equipment... Active Standard
C57.12.51-2008 - Ventilated Dry- Type Power Transformers, 501 kVA and Larger, Three-Phase, with High- Voltage 601 V to 34 500 V; Low- Voltage 208Y/120 V to 4160 V- General RequirementsCharacteristics relating to performance, limited electrical and mechanical interchangeability, as well as safety of the equipment described, and... Active Standard
C57.12.52-2012 - Sealed Dry-Type Power Transformers, 501 kVA and Higher, Three-Phase, with High-Voltage 601 to 34500 Volts, Low-Voltage 208Y/120 to 4160 Volts—General RequirementsCharacteristics relating to performance, limited electrical and mechanical interchangeability, and guidance to assist in the proper selection of... Active Standard
C57.12.56-1986 - Standard Test Procedure for Thermal Evaluation of Insulation Systems for Ventilated Dry-Type Power and Distribution TransformersThis standard is intended to establish a uniform method for determining the temperature classification of ventilated dry-type power and... Superseded Standard
C57.12.58-1991 - Guide for Conducting a Transient Voltage Analysis of a Dry-Type Transformer CoilGeneral recommendations for measuring voltage transients in dry-type distribution and power transformers are provided. Recurrent surge voltage... Active Standard
C57.12.59-1989 - Guide for Dry-Type Transformer Through-Fault Current DurationProtective devices, such as relays and fuses, have well-defined operating characteristics that relate fault magnitude to operating time. It is... Withdrawn Standard
C57.12.59-2001 - Guide for Dry-Type Transformer Through-Fault Current DurationThis guide sets forth recommendations believed essential for the application of overcurrent protective devices that limit the exposure time of dry... Active Standard
C57.12.60-1992 - Trial-Use Standard Test Procedures for Thermal Evaluation of Insulation Systems for Solid-Cast and Resin-Encapsulated Power and Distribution TransformersThis standard provides a uniform method for determining the temperature classification of solid cast and resin encapsulated power and distribution... Superseded Standard
C57.12.60-1998 - Guide for Test Procedures for Thermal Evaluation of Insulation Systems for Solid Cast and Resin-Encapsulated Power and Distribution TransformersA uniform method is established for determining the temperature classification of solid-cast and resin-encapsulated power and distribution... Superseded Standard
C57.12.60-2009 - Standard Test Procedure for Thermal Evaluation of Insulation Systems for Dry-Type Power and Distribution Transformers, Including Open-Wound, Solid-Cast, and Resin-Encapsulated TransformersA uniform method is established for determining the temperature classification for the insulation systems for open-wound, solid-cast and resin... Active Standard
C57.12.60-2009/Cor 1-2013 - Standard Test Procedure for Thermal Evaluation of Insulation Systems for Dry-Type Power and Distribution Transformers, Including Open-Wound, Solid-Cast, and Resin-Encapsulated TransformersThis corrigendum clarifies temperature control for aging experiments in 4.5.1 that was a result of the combination of the two previous test... Active Standard
C57.12.70-1978 - American National Standard Terminal Markings and Connections for Distribution and Power TransformersANSI C57.12.70-1978 [Revision of ANSI C57.12.70-1964 (R 1971)] American National Standard Terminal Markings and Connections for Distribution and... Superseded Standard
C57.12.70-2000 - Standard Terminal Markings and Connections for Distribution and Power TransformersStandard terminal markings and connections are described for single-phase and three-phase distribution, power, and regulating transformers. For... Superseded Standard
C57.12.70-2011 - Standard Terminal Markings and Connections for Distribution and Power TransformersStandard terminal markings and connections are described for single-phase and three phase distribution, power, and regulating transformers. For... Active Standard
C57.12.80-1978 - Standard Terminology for Power and Distribution TransformersThis standard is a compilation of terminology and definitions primarily related to electrical transformers and associated apparatus included... Superseded Standard
C57.12.80-2002 - Standard Terminology for Power and Distribution TransformersThis standard is a compilation of terminology and definitions primarily related to electric power and distribution transformers and associated... Superseded Standard
C57.12.80-2010 - Standard Terminology for Power and Distribution TransformersThis standard is a compilation of terminology and definitions related to electric power and distribution transformers and associated apparatus. It... Active Standard
C57.12.90-1987 - Standard Test Code for Liquid-Immersed Distribution, Power, and Regulating Transformers and IEEE Guide for Short-Circuit Testing of Distribution and Power TransformersThe standard describes methods for performing tests on liquid-immersed distribution, power and regulating transformers. It is intended for use as... Superseded Standard
C57.12.90-1993 - Standard Test Code for Liquid-Immersed Distribution, Power and Regulating Transformers and IEEE Guide for Short-Circuit Testing of Distribution and Power TransformersMethods for performing tests specified in IEEE Std C57.12.00-1993, IEEE Standard General Requirements for Liquid-Immersed Distribution, Power, and... Superseded Standard
C57.12.90-1999 - Standard Test Code for Liquid-Immersed Distribution, Power, and Regulating TransformersMethods for performing tests specified in IEEE Std C57.12.00-1993 and other standards applicable to liquid-immersed distribution, power, and... Superseded Standard
C57.12.90-2006 - Standard Test Code for Liquid-Immersed Distribution, Power, and Regulating TransformersMethods for performing tests specified in IEEE Std C57.12.00™-2006 and other standards applicable to liquid-immersed distribution, power, and... Superseded Standard
C57.12.90-2010 - Standard Test Code for Liquid-Immersed Distribution, Power, and Regulating TransformersMethods for performing tests specified in IEEE Std C57.12.00(TM) and other standards applicable to liquid-immersed distribution, power, and... Active Standard
C57.12.91-1979 - Standard Test Code for Dry-Type Distribution and Power TransformersThis standard describes methods for performing tests specified in ANSI/IEEE C57.12.01-1979, general requirements for dry-type distribution and... Superseded Standard
C57.12.91-1995 - Standard Test Code for Dry-Type Distribution and Power TransformersMethods for performing tests specified in IEEE Std C57.12.01-1989 and other referenced standards applicable to dry-type distribution and power... Superseded Standard
C57.12.91-2001 - Standard Test Code for Dry-Type Distribution and Power TransformersMethods for performing tests specified in IEEE Std C57.12.01-1998 and other referenced standards applicable to dry-type distribution and power... Superseded Standard
C57.12.91-2011 - Standard Test Code for Dry-Type Distribution and Power TransformersThis revision addresses substantive changes to Clause 5, 10 and 11 This revision addresses substantive changes to Clause 5, Clause 10, and Clause... Active Standard
C57.13-1978 - Standard Requirements for Instrument TransformersThis standard covers certain electrical, dimensional, and mechanical characteristics, and takes into consideration certain safety features of... Superseded Standard
C57.13-1993 - Standard Requirements for Instrument TransformersElectrical, dimensional, and mechanical characteristics are covered, taking into consideration certain safety features, for current and... Superseded Standard
C57.13-2008 - Standard Requirements for Instrument TransformersElectrical, dimensional, and mechanical characteristics are covered, taking into consideration certain safety features, for current and... Active Standard
C57.13.1-1981 - Guide for Field Testing of Relaying Current TransformersIn the application of protective relays, the most widely used input quantity is current. A multiplicity of different protective relays either... Superseded Standard
C57.13.1-2006 - Guide for Field Testing of Relaying Current TransformersThis guide describes field test methods that assure that current transformers are connected properly, are of marked ratio and polarity, and are in... Active Standard