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IEEE C57.123 - Guide for Transformer Loss Measurement
November 7, 2019 - IEEE

This guide provides background information and general recommendations of instrumentation, circuitry, calibration, and measurement techniques of no-load losses (excluding auxiliary losses), excitation current, load losses of power, and distribution transformers. The test codes, namely,...

MIL-T-48319 - TRANSFORMER
NPFC
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IEEE C57.91 - Guide for Loading Mineral-Oil-Immersed Transformers and Step-Voltage Regulators
December 7, 2011 - IEEE

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...

IEEE C37.06.1 - Recommended Practice for Preferred Ratings for High-Voltage (>1000 volts) AC Circuit Breakers Designated Definite Purpose for Fast Transient Recovery Voltage Rise Times
December 6, 2017 - IEEE

This recommended practice is issued as a supplement to IEEE Std C37.06 for high-voltage circuit breaker applications where the transient recovery voltage (TRV) peak is higher and/or its rise to the crest value occurs more rapidly than those specified in IEEE Std C37.06....

IEEE PC57.12.91 DRAFT - Draft Standard Test Code for Dry-Type Distribution and Power Transformers
April 1, 2019 - IEEE

This standard describes methods for performing tests specified in IEEE Std C.57.12.01 and other referenced standards applicable to dry-type distribution and power transformers, with a voltage of 601V or higher in the highest voltage winding. It is intended for use as a...

IEEE C57.98 - Guide for Transformer Impulse Tests
December 11, 2011 - IEEE

To aid in the interpretation and application of the impulse testing requirements of the IEEE Standard Test Codes for Transformers. Purpose This guide is written primarily for power transformers, but it is also generally applicable to distribution and instrument...

IEEE C57.12.60 - Thermal Evaluation of Insulation Systems for Dry-Type Power and Distribution Transformers
January 30, 2020 - IEEE

This test procedure for the thermal evaluation of insulation systems of dry-type power and distribution transformers is to be used for determining the temperature classification and modification of the insulation systems. This standard shall apply to all dry-type transformers with a...

IEEE C57.12.91 - Test Code for Dry-Type Distribution and Power Transformers
December 7, 2011 - IEEE

This standard describes methods for performing tests specified in IEEE Std C57.12.01™ and other referenced standards applicable to dry-type distribution and power transformers.1 It is intended for use as a basis for performance, safety, and the proper testing of dry-type distribution...

IEEE 60076-57-129 - Power transformers – Part 57-129: Transformers for HVDC applications
November 1, 2017 - IEEE

This part of 60076 International Standard specifies requirements of liquid-immersed three-phase and single-phase converter transformers for use in high voltage direct current (HVDC) power transmission systems including back-to-back applications. It applies to transformers...

IEEE C57.13 SERIES - Standard for Requirements for Instrument Transformers
January 1, 2019 - IEEE

This standard is intended for use as a basis for performance and interchangeability of equipment covered, and to assist in the proper selection of such equipment. Safety precautions are also addressed. This standard covers certain electrical, dimensional, and mechanical characteristics, and takes...

IEEE C57.12.51 - IEEE Guide for Mechanical Interchangeability of Ventilated Dry-Type Transformers
May 21, 2019 - IEEE

This guide sets forth characteristics of ventilated dry-type transformers relating to performance, limited electrical and mechanical interchangeability, as well as recommended practice for installation of the equipment described, and to assist in the proper selection of such equipment....

IEEE C57.13.6 - Standard for High-Accuracy Instrument Transformers
September 22, 2005 - IEEE

This standard defines one new 0.15 accuracy class for voltage transformers, two new 0.15 accuracy classes for current transformers, two new current transformer burdens, and two new current transformer routine accuracy test methods. These supplement IEEE Std...

IEEE PC57.12.01 DRAFT - Draft Standard for General Requirements for Dry-Type Distribution and Power Transformers
February 1, 2020 - IEEE

This standard describes electrical, mechanical, and safety requirements of single and polyphase ventilated, non-ventilated, and sealed dry-type distribution and power transformers or autotransformers, with a voltage of 601 V or higher in the highest voltage winding. This...

IEEE C57.12.39 - Requirements for Distribution Transformer Tank Pressure Coordination
December 6, 2017 - IEEE

This standard covers certain mechanical requirements for liquid-immersed distribution transformers with respect to tank strength, as well as static and dynamic tank pressure mitigation. This standard can be applied to various tank configurations for distribution transformers. This...

ANSI C57.12.12 - Guide for Installation of Oil-Immersed EHV Transformers 345 kV and Above
January 1, 1980 - IEEE

Introduction The recommendations presented in this guide apply primarily to modern large oilimmersed power transformers with high-voltage windings rated 345 kV and above. This guide is a supplement to ANSI/IEEE C57.12.11- 1980, Guide for Installation of Oil-Immersed...

IEEE C57.13 - Requirements for Instrument Transformers
January 29, 2016 - IEEE

This standard is intended for use as a basis for performance and interchangeability of equipment covered, and to assist in the proper selection of such equipment. Safety precautions are also addressed. This standard covers certain electrical, dimensional, and mechanical characteristics, and takes...

IEEE C57.12.01 - General Requirements for Dry-Type Distribution and Power Transformers
February 16, 2015 - IEEE

This standard describes electrical and mechanical requirements of single and polyphase ventilated, nonventilated, and sealed dry-type distribution and power transformers or autotransformers, with a voltage of 601 V or higher in the highest voltage winding. This standard applies...

IEEE C57.13.5 - Performance and Test Requirements for Instrument Transformers of a Nominal System Voltage of 115 kV and Above
November 7, 2019 - IEEE

This standard is intended for use as a supplement to IEEE Std C57.13TM-2016 and as a basis for performance and safety of equipment.1 It also describes test sequences, criteria, methods, and documentation for tests. This standard applies to single-phase instrument transformers of a...

IEEE C57.94 - Recommended Practice for Installation, Application, Operation, and Maintenance of Dry-Type Distribution and Power Transformers
December 5, 2015 - IEEE

This recommended practice covers general recommendations for the application, installation, operation, and maintenance of all single and polyphase ventilated, non-ventilated, and sealed dry-type distribution and power transformers or autotransformers, including those with solid-cast and/or...

IEEE 638 - Qualification of Class 1E Transformers for Nuclear Power Generating Stations
December 11, 2013 - IEEE

This standard provides requirements to demonstrate the adequacy of new Class IE transformers, located in a mild environment of a nuclear power generating station as defined in IEEE Std 323™1, to perform their required safety functions under postulated service conditions. This standard...

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