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CSA C199 - THREE-PHASE NETWORK DISTRIBUTION TRANSFORMERS - THIRD EDITION Organization: CSA
Date: 2008-01-01
Description: This Standard specifies the mechanical and electrical characteristics of three-phase network distribution transformers having rated primary voltages up to 34.5 kV and kV•A ratings of 500 to 2500.
CSA C301.1 - SINGLE-PHASE SUBMERSIBLE DISTRIBUTION TRANSFORMERS - SECOND EDITION Organization: CSA
Date: 2006-01-01
Description:   This Standard applies only to single-phase distribution transformer units intended for use in a ventilated vault or enclosure below grade level, with all terminations and accessories cover mounted, or nearly so, for operation above grade.
CSA C301.2 - THREE-PHASE SUBMERSIBLE DISTRIBUTION TRANSFORMERS - SECOND EDITION Organization: CSA
Date: 2006-01-01
Description:   This Standard applies only to three-phase distribution transformer units intended for use in a ventilated vault or enclosure below grade level, with all terminations and accessories cover mounted, or nearly so, for operation above grade.
IEEE C57.12.80 - TERMINOLOGY FOR POWER AND DISTRIBUTION TRANSFORMERS Organization: IEEE
Date: 2010-09-30
Description: This standard is a compilation of terminology and definitions related to electric power and distribution transformers and associated apparatus. It also includes similar terminology relating to power systems and insulation which is commonly involved in transformer technology.
CSA C802.1 - MINIMUM EFFICIENCY VALUES FOR LIQUIDFILLED DISTRIBUTION TRANSFORMERS - SECOND EDITION; ERTA: MAY 2016 Organization: CSA
Date: 2013-01-01
Description: This Standard specifies energy efficiencies for liquid-filled distribution transformers. The total ownership cost (TOC) methodology is recommended as the means for achieving these energy efficiencies, particularly for use by electric utilities.
NEMA TP 3 - STANDARD FOR THE LABELING OF DISTRIBUTION TRANSFORMER EFFICIENCY Organization: NEMA
Date: 2000-01-01
Description: Defines the labeling of distribution transformers tested to the efficiency levels specified in TP 1.
NEMA TP 1 - GUIDE FOR DETERMINING ENERGY EFFICIENCY FOR DISTRIBUTION TRANSFORMERS Organization: NEMA
Date: 2002-01-01
Description: This standard covers single-phase and three-phase dry-type and liquid-filled distribution transformers. Defines the labeling of distribution transformers tested to the efficiency levels specified in TP 1.
IEEE PC57.138 DRAFT - DRAFT RECOMMENDED PRACTICE FOR ROUTINE IMPULSE TEST FOR DISTRIBUTION TRANSFORMERS Organization: IEEE
Date: 2016-04-01
Description: Distribution transformers covered by this recommended practice are liquid-immersed, single- and three-phase overhead type up to 500 kVA; single-phase pad-mounted compartmental-type and underground-type up to 167 kVA; three-phase pad-mounted compartmental-type and underground-type up to 2500 kVA This recommended practice covers only those aspects of impulse testing that are specific to routine testing of distribution transformers. For more thorough coverage of impulse testing of transformers in general, the IEEE Guide for Transformer Impulse Tests, IEEE Std C57.98™, should be consulted Purpose  This recommended practice assists manufacturers of distribution transformers in the setup and operation  of a routine impulse test, and assists distribution transformer users and purchasers in understanding the routine impulse test and how it differs from design tests
IEEE C57.12.35 - BAR CODING FOR DISTRIBUTION TRANSFORMERS AND STEP-VOLTAGE REGULATORS Organization: IEEE
Date: 2013-08-23
Description: This standard sets forth bar-code label requirements for overhead, pad-mounted, and underground-type distribution transformers and step-voltage regulators. Included herein are requirements for data content, symbology, label layout, print quality, and label life expectancy.
IEEE C57.12.37 - THE ELECTRONIC REPORTING OF DISTRIBUTION TRANSFORMER TEST DATA Organization: IEEE
Date: 2015-09-03
Description: This standard provides a basis for electronic reporting of transformer test data on liquid-immersed distribution transformers. This standard defines how to format and report the standard test data when electronic reporting is specified.
CSA C227.5 - THREE-PHASE LIVE-FRONT PAD-MOUNTED DISTRIBUTION TRANSFORMERS - FIRST EDITION Organization: CSA
Date: 2008-04-01
Description: This Standard specifies requirements for three-phase live-front pad-mounted distribution transformer units that (a) consist of a transformer and a separable or integral cable entrance compartment; (b) are rated 75 to 3000 kV•A and intended for operation on three-phase underground distribution systems having the preferred rated voltages specified in Tables 1 and 2; and (c) are intended for mounting outdoors on pads without additional protective enclosures.
NASA-16275S - DISTRIBUTION TRANSFORMERS Organization: NASA
Date: 2005-12-01
Description: This section covers single- and three-phase dry-type and oil-insulated ransfo...
BSMI - CNS C 4010 - DISTRIBUTION TRANSFORMER Organization: BSMI
ANSI C57.96 - GUIDE FOR LOADING DRY-TYPE DISTRIBUTION AND POWER TRANSFORMERS APPENDIX TO AMERICAN NATIONAL STANDARD POWER AND DISTRIBUTION TRANSFORMERS Organization: ANSI
Date: 1959-11-01
Description: This guide covers general recommendations for the loading of dry-type distribution and power transformers that have insulation system limited to 150 ºC and 220 ºC maximum hottestepot operating temperatures.
NEMA TP 2 - STANDARD TEST METHOD FOR MEASURING THE ENERGY CONSUMPTION OF DISTRIBUTION TRANSFORMERS Organization: NEMA
Date: 2005-01-01
Description: This standard covers single-phase and three-phase dry-type and liquid-immersed distribution transformers at 60Hz for the North American system (transformers for transferring electrical energy from a primary distribution circuit to a secondary distribution circuit or within a secondary distribution circuit) This standard addresses the test procedures for determining the efficiency performance of the transformers covered in NEMA Publication TP 1.
CSA C2 - SINGLE-PHASE AND THREE-PHASE DISTRIBUTION TRANSFORMERS, TYPES ONAN AND LNAN - EIGHTH EDITION; GENERAL INSTRUCTION NO 1-2;: 2006 Organization: CSA
Date: 1991-01-01
Description: This Standard specifies the requirements for distribution transformers intended primarily for operation by electric utilities.
IEEE 65 - PROPOSED TEST PROCEDURE FOR THERMAL EVALUATION OF VENTILATED DRY-TYPE POWER AND DISTRIBUTION TRANSFORMERS Organization: IEEE
Date: 1956-11-01
Description: Accordingly, this test procedure is intended to establish methods for evaluating the insulating systems of ventilated dry-type power and distribution transformers. It is expected that test procedures covering other classes of transformers will be prepared from time to time as the lengthy but necessary study and trials are completed.
AENOR - UNE 20176 - BUSHINGS FOR DISTRIBUTION TRANSFORMERS Organization: AENOR
Date: 1989-07-28
IEEE PC57.12.36 DRAFT - DRAFT STANDARD REQUIREMENTS FOR LIQUID-IMMERSED DISTRIBUTION SUBSTATION TRANSFORMERS Organization: IEEE
Date: 2016-10-01
Description: This standard covers certain electrical, dimensional, and mechanical characteristics of 50 Hz and 60 Hz, two winding, liquid-immersed distribution substation transformers. Such transformers may be remotely or integrally associated with either primary and secondary switchgear or substations, or both, for step-down or step-up purposes rated as follows: a) 112.5 kVA through 10 000 kVA three-phase b) 250 kVA through 6667 kVA single-phase c) High voltage 69 000 V and below and low voltage 34 500 V and below It is not intended that this standard shall apply to dry-type, regulating, pad-mounted, secondary-network, furnace, rectifier, mobile, railway, or mine transformers
IEEE - ANSI C57.12.56 - STANDARD TEST PROCEDURE FOR THERMAL EVALUATION OF INSULATION SYSTEMS FOR VENTILATED DRY-TYPE POWER AND DISTRIBUTION TRANSFORMERS Organization: IEEE
Date: 1986-01-01
Description: Foreword(This Foreword is not a part of ANSI/IEEE C57.12.56-1986, IEEE Standard Test Procedure for Thermal Evaluation of Insulation Systems for Ventilated Dry-Type Power and Distribution Transformers.)This standard was developed to provide a method for evaluating insulation systems for ventilated dry-type transformers with high-voltage ratings greater than 600 V.

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