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Power and Energy Standards

Displaying results 1361 - 1400 of 1472
Standard Name
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C57.131-1995 - Standard Requirements for Load Tap ChangersElectrical and mechanical performance and test requirements for load tap changers installed in power transformers and voltage regulating... Superseded Standard
C57.131-2012 - Standard Requirements for Tap ChangersThis standard covers electrical and mechanical performance and test requirements for tap changers installed in voltage regulating power and... Active Standard
C57.134-2000 - Guide for Determination of Hottest-Spot Temperature in Dry-Type TransformersMethodologies for determination of the steady-state winding hottest-spot temperature in dry-type distribution and power transformers with... Superseded Standard
C57.134-2013 - Guide for Determination of Hottest-Spot Temperature in Dry-Type TransformersMethodologies for determination of the steady-state winding hottest-spot temperature in dry-type distribution and power transformers with... Active Standard
C57.135-2001 - Guide for the Application, Specification, and Testing of Phase-Shifting TransformersTheory, application of phase-shifting transformers, and the difference of specification and testing to standard system transformers are described.... Superseded Standard
C57.135-2011 - Guide for the Application, Specification, and Testing of Phase-Shifting TransformersAdopted as IEC 62032:2012. Theory, application of phase-shifting transformers, and the difference of specification and testing to standard system... Active Standard
C57.136-2000 - Guide for Sound Level Abatement and Determination for Liquid-Immersed Power Transformers and Shunt Reactors Rated Over 500 kVAGuidelines are provided for the selection of suitable sound reduction methods in oil-im-mersed power transformers and shunt reactors over 500 kVA.... Active Standard
C57.138-1998 - Recommended Practice for Routine Impulse Test for Distribution TransformersGeneral test procedures are presented for performing routine quality control tests that are suitable for high-volume, production line testing.... Active Standard
C57.139-2010 - Guide for Dissolved Gas Analysis in Transformer Load Tap ChangersMethods of testing and evaluating dissolved gases in mineral based transformer oils found in Load Tap Changers (LTCs) are discussed and... Superseded Standard
C57.139-2015 - Guide for Dissolved Gas Analysis in Transformer Load Tap ChangersGeneral types of load tap changer (LTC) mechanisms, breathing configurations, and electrical designs, described for reference for determining... Active Standard
C57.140-2006 - Guide for Evaluation and reconditioning of Liquid Immersed Power TransformersThis guide includes guidelines for the following: insulating oil maintenance and diagnostics, oil reclamation, testing methods for the... Active Standard
C57.142-2010 - Guide to Describe the Occurrence and Mitigation of Switching Transients Induced by Transformers, Switching Device, and System InteractionThe performance of transformers in the presence of oscillatory transients is addressed in this guide. Oscillatory transients are typically... Active Standard
C57.143-2012 - Guide for Application for Monitoring Equipment to Liquid-Immersed Transformers and ComponentsIdentification of the key parameters that can be monitored for obtaining an indication of the condition of liquid-immersed transformers is covered... Active Standard
C57.144-2004 - Guide for Metric Conversion of Transformer StandardsA consistent and accurate method of converting dimensions and quantities in transformer standards to SI units is provided in this guide Active Standard
C57.146-2006 - Guide for Interpretation of Gasses Generated in Silicone-Immersed TransformersThis guide is intended to apply to silicone-immersed transformers in which the silicone fluid was the fluid supplied when the transformer was... Active Standard
C57.147-2008 - Guide for Acceptance and Maintenance of Natural Ester Fluids in TransformersThe evaluation and handling procedures for natural ester transformer insulating fluids are covered. The transformer operator is assisted by the... Active Standard
C57.148-2011 - Control Cabinets for Power TransformersRequirements for the design and construction of control cabinets on power transformers. Active Standard
C57.149-2012 - Guide for the Application and Interpretation of Frequency Response Analysis for Oil-Immersed TransformersThe measurement of Frequency Response Analysis (FRA) of oil-immersed power transformers is applicable in this guide. It is intended to provide the... Active Standard
C57.150-2012 - Guide for the Transportation of Transformers and Reactors Rated 10 000 kVA or HigherInformation for minimizing the risk of damage and delays during transportation of transformers and reactors rated 10 000 kVA or higher is provided... Active Standard
C57.152-2013 - Guide for Diagnostic Field Testing of Fluid-Filled Power Transformers, Regulators, and ReactorsDiagnostic tests and measurements that are performed in the field on fluid-filled power transformers and regulators are described. Whenever... Active Standard
C57.153-2015 - Guide for Paralleling Regulating TransformersControl methods of paralleling regulating transformers are described and compared in this guide. The control methods include: master/follower,... Active Standard
C57.154-2012 - the Design, Testing, and Application of Liquid-Immersed Distribution, Power, and Regulating Transformers Using High-Temperature Insulation Systems and Operating at Elevated TemperaturesAll liquid-immersed distribution, power, and regulating transformers that are designed to operate at temperatures that exceed the normal thermal... Active Standard
C57.155-2014 - Guide for Interpretation of Gases Generated in Natural Ester and Synthetic Ester-Immersed TransformersNatural and synthetic ester-immersed transformers are handled in this guide. The following is addressed in this guide: a) The theory of... Active Standard
C57.157-2015 - Guide for Conducting Functional Life Tests on Switch Contacts Used in Insulating Liquid--Immersed TransformersThis guide is intended for use in establishing a methodology to evaluate expected long-term performance of infrequently operated switch contacts... Active Standard
C57.159-2016 - Approved Draft Guide on Transformers for Application in Distributed Photovoltaic (DPV) Power Generation SystemsThis Guide provides general and specific recommendations on specification, design and application of liquid-immersed and dry-type transformers in... Active Standard
C57.163-2015 - Guide for Establishing Power Transformer Capability while under Geomagnetic DisturbancesThe effects of geomagnetic disturbances (GMD) on power transformers when there is the presence of geomagnetically induced current (GIC) in a power... Active Standard
C57.637-2015 - Guide for the Reclamation of Mineral Insulating Oil and Criteria for Its UseCovered in this guide are: mineral insulating oil commonly defined as transformer oil; definitions and descriptions of reclaiming procedures; the... Active Standard
C62.1-1989 - Gapped Silicon-Carbide Surge Arresters for AC Power CircuitsThis standard applies to gapped silicon-carbide surge-protective devices designed for the repeated limiting of voltage surges on 50 Hz or 60 Hz... Withdrawn Standard
C62.2-1987 - Guide for the Application of Gapped Silicon-Carbide Surge Arresters for Alternating Current SystemsThis standard covers the application of gapped silicon-carbide surge arresters to safeguard electric power equipment against the hazards of... Withdrawn Standard
C62.11-1987 - Metal-Oxide Surge Arresters for AC Power CircuitsThe standard applies to metal-oxide surge arresters designed to repeatedly limit the voltage surges on 48 Hz to 62 Hz AC power circuits by passing... Superseded Standard
C62.11-1993 - Metal-Oxide Surge Arresters for Alternating Current Power CircuitsMetal-oxide surge arresters designed to repeatedly limit the voltage surges on 48 Hz to 62 Hz power circuits by passing surge discharge current... Superseded Standard
C62.11-1999 - Metal-Oxide Surge Arresters for Alternating Current Power Circuits (>1KV)Metal-oxide surge arresters designed to repeatedly limit the voltage surges on 48-62 Hz power circuits (>1 kV) are covered in this standard. These... Superseded Standard
C62.11-2005 - Metal-Oxide Surge Arresters for AC Power Circuits (> 1 kV)This standard applies to metal-oxide surge arresters (MOSAs) designed to repeatedly limit the voltage surges on 48 Hz to 62 Hz power circuits (... Superseded Standard
C62.11-2012 - Metal-Oxide Surge Arresters for AC Power Circuits (>1 kV)Metal-oxide surge arresters (MOSAs) designed to repeatedly limit the voltage surges on 48 Hz to 62 Hz power circuits (􀀡 1000 V) by... Active Standard
C62.11a-2008 - Metal-Oxide Surge Arresters for AC Power Circuits (>1 kV) Amendment 1: Short-Circuit Tests for Station, Intermediate, and Distribution ArrestersMetal-oxide surge arresters designed to repeatedly limit the voltage surges on 48 Hz to 62 Hz power circuits (>1000 V) by passing surge discharge... Superseded Standard
C62.21-2003 - Guide for the Application of Surge Voltage Protective Equipment on AC Rotating Machinery 1000 Volts and GreaterThe application of surge voltage protective equipment to AC rotating machines rated 1000 V and greater is covered. The guide does not cover motors... Active Standard
C62.22-1991 - Guide for the Application of Metal Oxide Surge Arresters for AC SystemsIn this standard, the application of metal-oxide surge arresters to safeguard electric power equipment against the hazards of abnormally high... Superseded Standard
C62.22-1997 - Guide for Application of Metal-Oxide Surge Arresters for Alternating-Current SystemsThe application of metal-oxide surge arresters to safeguard electric power equipment against the hazards of abnormally high voltage surges of... Superseded Standard