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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.
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 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.
NEMA TP 2 - STANDARD TEST METHOD FOR MEASURING THE ENERGY CONSUMPTION OF DISTRIBUTION TRANSFORMERS Organization: NEMA
Date: 2005-01-01
Description: Provides the basis for determining the energy efficiency of single- and three-phase dry-type and liquid-immersed distribution transformers and assists with the proper selection of such equipment.
WILEY - ELECTRICAL ENERGY EFFICIE - ELECTRICAL ENERGY EFFICIENCY: TECHNOLOGIES AND APPLICATIONS Organization: WILEY
Date: 2012-01-01
Description: Key features include: a comprehensive overview of the different technologies involved in electroefficiency, outlining monitoring and control concepts and practical design techniques used in industrial applications; description of the current standards of electrical motors, with illustrative case studies showing how to achieve better design; up-to-date information on standarization, technologies, economic realities and energy efficiency indicators (the main types and international results); coverage on the quality and efficiency of distribution systems (the impact on distribution systems and loads, and the calculation of power losses in distribution lines and in power transformers).
IEC TS 60076-20 - POWER TRANSFORMERS - PART 20: ENERGY EFFICIENCY - EDITION 1.0 Organization: IEC
Date: 2017-01-01
Description: This part of IEC 60076 is applicable to transformers in the scope of IEC 60076-1 The energy performance levels given in Clause 6 are not applicable to the following transformers transformers for high current rectifiers as described in the IEC 61378 (all parts) and in the IEC 60146 (all parts) transformers for furnace applications transformers for offshore applications NOTE 1 Transformer to be installed on fixed or floating offshore platforms, offshore wind turbines or on board of ships and all kind of vessels) transformers for emergency or temporary mobile installations NOTE 2 Transformers designed only to provide cover for a specific time limited situation when the normal power supply is interrupted either due to an unplanned occurrence such as failure or a station refurbishment, but not to permanently upgrade an existing substation traction transformers earthing transformers as described in 3.1.10 of IEC 60076-6:2007 phase shifting transformers instrument transformers (IEC 61869-1) transformers and auto-transformers specifically designed for railway feeding systems, as defined in EN 50329 traction catenary supply transformer for 16,67 Hz transformer for high current rectifiers (IEC 61869-1) NOTE 3 These are transformers specifically designed and intended to supply power electronic or rectifier loads specified according to IEC 61378-1 NOTE 4 This exclusion does not apply to transformers intended to provide AC power from DC sources such as transformers for wind turbine and photo voltaic applications as well as transformers designed for DC transmission and distribution applications transformers for railway feeding systems (EN 50329) subsea transformers starting-, testing- and welding transformers starting transformers, specifically designed for starting three-phase induction motors so as to eliminate supply voltage dips NOTE 5 Examples are transformers that are de-energised during normal operation, used for the purpose of starting a rotating machine) transformers specifically designed for explosion-proof and underground mining applications transformers which cannot fulfil the energy performance requirements due to unavoidable size and weight limitations NOTE 6 Due to the unavoidable weight and size limitation for a rolling stock application, this definition includes all traction transformers for rolling stock, irrespective of the frequency (e.g. 16,7 Hz, 25 Hz, 50 Hz, 60 Hz) In this document, "transformers" includes both separate winding transformers and autotransformers NOTE 7 Transformers intended to provide AC power from DC sources such as transformers for wind turbine and photo voltaic applications as well as transformers designed for DC transmission and distribution applications are included in the Scope of this document
CSA C802.5 - GUIDELINE FOR EVALUATING THE EFFICIENCY OF DRY-TYPE TRANSFORMERS UNDER NON-LINEAR LOADING - FIRST EDITION Organization: CSA
Date: 2016-01-01
Description:   This Guideline covers transformers, self-contained units or components of larger assemblies, 60 Hz, ANN, rated 15 to 500 kVA three-phase, two winding low voltage distribution transformers with maximum winding voltage of 1.2 kV.

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