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JJF 1261.20-2017 English PDF

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JJF 1261.20-2017: Rules of Metrology Testing for Energy Efficiency of Power Transformers
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JJF 1261.20: Evolution and historical versions

Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)StatusPDF
JJF 1261.20-2017English949 Add to Cart 7 days [Need to translate] Rules of Metrology Testing for Energy Efficiency of Power Transformers Valid JJF 1261.20-2017
JJF 1261.20-2015EnglishRFQ ASK 6 days [Need to translate] Rules of Metrology Testing for Energy Efficiency of Power Transformers Obsolete JJF 1261.20-2015

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Basic data

Standard ID JJF 1261.20-2017 (JJF1261.20-2017)
Description (Translated English) Rules of Metrology Testing for Energy Efficiency of Power Transformers
Sector / Industry Metrology & Measurement Industry Standard
Classification of Chinese Standard A50
Classification of International Standard 17.020
Word Count Estimation 41,443
Date of Issue 2017-09-26
Date of Implementation 2018-03-26
Older Standard (superseded by this standard) JJF 1261.20-2015
Quoted Standard JJF 1261.1-2017; GB 1094.1-2013; GB/T 2829-2002; GB 24790-2009; JB/T 501-2006
Regulation (derived from) General Administration of State Quality Inspection Announcement 2017 No. 78
Issuing agency(ies) General Administration of Quality Supervision, Inspection and Quarantine
Summary This standard applies to energy efficiency measurement requirements, metrology and testing procedures, metrology and detection methods, and assessment criteria for measurement results of three-phase oil-immersed power transformers with a rated frequency of 50 Hz, a voltage rating of 35 kV to 220 kV, and a rated capacity of 3150 kVA and above. Test report and other content. This standard is applicable to the measurement and supervision of energy transformers for energy efficiency measurement. Commissioned inspections can refer to this standard. Units that produce and sell power transformers can also be tested against this standard. The power transformer that is tested should be a product that the manufacturer has passed its own inspection, or it is a commodity that the seller imports or sells. This standard does not apply to dry-type transformers, high-impedance transformers and inflatable transformers.

JJF 1261.20-2017: Rules of Metrology Testing for Energy Efficiency of Power Transformers

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Rules of Metrology Testing for Energy Efficiency of Power Transformers National Metrology Technical Specification of the People's Republic Power transformer energy efficiency Metrology inspection rules Published on.2017-09-26 Implementation of.2018-03-26 The General Administration of Quality Supervision, Inspection and Quarantine issued Power transformer energy efficiency Metrology inspection rules Replacing JJF 1261.20-2015 Focal Point. National Legal Measurement Management Measurement Technical Committee Energy Efficiency Labeling Measurement and Testing Subcommittee Main drafting unit. National High Voltage Metering Station Xinjiang Uygur Autonomous Region Metrology and Testing Institute Participated in the drafting unit. Chongqing Institute of Metrology and Quality Inspection Hebei Metrology Supervision and Inspection Institute TBEA Baoding Tianwei Baobian Electric Co., Ltd. This Code entrusts the National Legal System of Metrology and Metrology Management Metrology Technical Committee The committee is responsible for explaining The main drafters of this specification. Zhou Feng (National High Voltage Metering Station) Yin Xiaodong (National High Voltage Metering Station) Song Wei (Xinjiang Uygur Autonomous Region Metrology and Testing Institute) Participate in the drafters. Wang Rui (Chongqing Metrology Quality Inspection Institute) Li County Law (Hebei Province Metrology Supervision and Inspection Institute) Jia Heqiang (Telecommunications Corporation) Lu Dongning (Baoding Tianwei Baobian Electric Co., Ltd.)

table of Contents

Introduction (II) 1 Scope (1) 2 References (1) 3 terms and units of measurement (1) 3.1 Power transformer energy efficiency consumption limit (1) 3.2 No-load loss (1) 3.3 Load loss (1) 3.4 Short circuit impedance (2) 3.5 Energy efficiency rating (2) 4 Overview (2) 5 Measurement requirements (2) 5.1 Energy Efficiency Labeling (2) 5.2 Energy efficiency indicators (energy consumption) (3) 5.3 Energy efficiency rating (9) 6 Detection conditions (9) 6.1 Environmental Conditions (9) 6.2 Testing Equipment (9) 6.3 Measurement uncertainty (10) 7 Test items and methods (10) 7.1 Sampling principles and methods (10) 7.2 Sample Testing (10) 7.3 Original Record (12) 7.4 Data Processing (12) 8 test results (12) 8.1 Energy efficiency index (energy consumption) measurement and acceptance results (12) 8.2 Test results evaluation criteria (13) 8.3 Test Report (13) Appendix A Measurement Method for No-load Loss of Power Transformers (15) Appendix B Power Transformer Load Loss Measurement Method (16) Appendix C Example of Uncertainty Evaluation of Power Transformer Energy Efficiency Measurement (18) Appendix D Power Transformer Energy Efficiency Measurement and Sampling Sampling Sheet (Format) (27) Appendix E Original Record of Energy Efficiency Measurement and Measurement of Power Transformers (Format) (28) Appendix F Power Transformer Energy Efficiency Measurement Report (Format) (32)

Introduction

In order to standardize the energy metering and testing of power transformers that implement energy efficiency labeling management, JJF 1261.1-2017 The requirements of the Energy Efficiency Measurement and Measurement Rules for Energy Products are formulated. This specification replaces JJF 1261.20-2015, in addition to editorial changes, in addition to JJF 1261.20-2015. The main changes are as follows. --- "5.1 Energy Efficiency Labeling" adds "energy efficiency information code" and "energy efficiency 'leader' information" Wait for; --- The original record format and test report format are modified accordingly (Appendix E and Appendix F). The previous versions of this specification were released as follows. ---JJF 1261.20-2015. Power transformer energy efficiency measurement and detection rules

1 Scope

This specification applies to rated frequency of 50Hz, voltage level of 35kV~220kV, rated capacity of 3150kVA Energy efficiency measurement requirements, measurement test procedures, measurement and detection methods, and the above three-phase oil-immersed power transformers Measurement criteria and test reports. This specification is applicable to the energy efficiency measurement and supervision of power transformers. The commissioned inspection can be carried out with reference to this specification. Health Units that produce and sell power transformers may also be tested with reference to this specification. The power transformer to be tested shall be the product that the producer has passed the self-test or the goods that the seller imports or sells. This specification does not apply to dry-type transformers, high-impedance transformers, and gas-filled transformers.

2 reference files

This specification refers to the following documents. JJF 1261.1-2017 energy efficiency measurement and testing rules for energy products GB 1094.1-2013 Power transformers - Part 1. General GB/T 2829-2002 Periodic inspection count sampling procedures and tables (applicable to the inspection of process stability) GB 24790-2009 Power transformer energy efficiency limit value and energy efficiency rating JB/T 501-2006 Power Transformer Test Guide For dated references, only dated versions apply to this specification; undated quotations The latest version (including all amendments) applies to this specification.

3 terms and units of measure

The following terms and units of measurement apply to this specification. 3.1 Power transformer energy efficiency consumption limit value minimumalowablevaluesofenergyefficiency Consumptionforpowertransformer The maximum allowable limit for no-load loss and load loss of power transformers under specified test conditions, measured in W. 3.2 No-load loss noloadloss When the rated voltage of the rated frequency (tap voltage) is applied to the terminals of one winding and the other windings are open, The active power drawn is measured in kW. 3.3 load loss loadloss In a pair of windings, when the rated current (drop current) flows through the line terminal of one winding, and the other winding In the case of a short circuit, the active power drawn at the rated frequency and the reference temperature is measured in kW. At this time, other winding Groups (if any) should be open. The data measured by the test needs to be corrected to the reference temperature. For oil-immersed transformers, the reference is made. The temperature is taken at 75 °C. Note. 1 For a two-winding transformer, there is only one pair of winding combinations and one load loss value. For multi-winding transformers, with multiple pairs

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