JJF 1701.6-2019 English PDF

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JJF 1701.6-2019: Program of Pattern Evaluation of Instrument Transformers--Part 6: Three-phase Combined Instrument Transformers
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JJF 1701.6-2019	1339	Add to Cart	9 days	Program of Pattern Evaluation of Instrument Transformers--Part 6: Three-phase Combined Instrument Transformers	Valid

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Basic data

Standard ID: JJF 1701.6-2019 (JJF1701.6-2019)
Description (Translated English): Program of Pattern Evaluation of Instrument Transformers--Part 6: Three-phase Combined Instrument Transformers
Sector / Industry: Metrology & Measurement Industry Standard
Classification of Chinese Standard: A55
Classification of International Standard: 17.220
Word Count Estimation: 58,580
Date of Issue: 2019
Date of Implementation: 2020-03-31
Issuing agency(ies): State Administration for Market Regulation

JJF 1701.6-2019: Program of Pattern Evaluation of Instrument Transformers--Part 6: Three-phase Combined Instrument 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.
Program of Pattern Evaluation of Instrument Transformers--Part 6.Three-phase Combined Instrument Transformers National Measurement Technical Specification of the People's Republic of China Outline of type evaluation for measuring transformer Part 6.Three-phase combined transformer Published on December 31,.2019 2020-03-31 Implementation Issued by the State Administration of Market Supervision and Administration Outline of type evaluation for measuring transformer Part 6.Three-phase combined transformer Transformers-Part 6.Three-phaseCombined Centralized unit. National Electromagnetic Measurement Technical Committee High-voltage Measurement Sub-Technical Committee Main drafting unit. National High Voltage Measuring Station State Grid Sichuan Electric Power Company Measurement Center State Grid Jiangxi Electric Power Research Institute of Electric Power Research State Grid Henan Electric Power Research Institute of Electric Power Participated in the drafting unit. State Grid Xinjiang Electric Power Co., Ltd. Electric Power Research Institute Measurement Center of Yunnan Power Grid Co., Ltd. This specification entrusts the National Electromagnetic Measurement Technical Committee High Voltage Measurement Sub-Technical Committee to interpret The main drafters of this specification. Yue Changxi (National High Voltage Metering Station) Zhu Kai (National High Voltage Metering Station) Liu Gang (State Grid Sichuan Electric Power Company Measurement Center) Jin Shaoping (State Grid Jiangxi Electric Power Co., Ltd. Electric Power Research Institute) Tao Ding (State Grid Henan Electric Power Company Electric Power Research Institute) Participating drafters. Li Ning (State Grid Xinjiang Electric Power Research Institute of Electric Power Research) Lin Cong (Measurement Center of Yunnan Power Grid Co., Ltd.)

table of Contents

Introduction (Ⅲ) 1 Scope (1) 2 References (1) 3 Terms and definitions (1) 3.1 Routine test (1) 3.2 Three-phase combined transformer (2) 3.3 Three-phase voltage transformer (2) 3.4 Three-phase V-junction combined transformer (2) 3.5 Three-phase Y-connection combined transformer (2) 4 Overview (2) 5 Legal management requirements (3) 5.1 Unit of measurement (3) 5.2 External structure (3) 5.3 Logo (3) 5.4 Submitted technical materials (4) 6 Measurement requirements (4) 6.1 Accuracy level (4) 6.2 Measurement interval (4) 6.3 Winding polarity (5) 6.4 Basic error (5) 6.5 Running deterioration (6) 6.6 Magnetic saturation margin (6) 7 General technical requirements (6) 7.1 Working conditions (6) 7.2 Appearance and structure (7) 7.3 Electrical performance (8) 7.4 Mechanical properties (12) 8 List of Type Evaluation Items (12) 9 Provide the number of prototypes and how to use them (14) 9.1 General requirements (14) 9.2 Number of prototypes provided (14) 9.3 How to use the prototype (14) 10 Test conditions and methods of test items, data processing and qualification criteria (14) 10.1 Test conditions of the project (14) 10.2 Inspection of signs (16) 10.3 Winding polarity (16) 10.4 Basic error (16) 10.5 Operational deterioration (21) 10.6 Magnetic saturation margin test (21) 10.7 Primary power frequency withstand voltage test (22) 10.8 Partial discharge test (23) 10.9 Secondary-end power frequency withstand voltage test (26) 10.10 Excitation characteristic test (27) 10.11 Turn-to-turn overvoltage test (28) 10.12 Capacitance and dielectric loss factor measurement (30) 10.13 Insulation oil performance test (30) 10.14 Temperature rise test (32) 10.15 Primary end impact pressure test (33) 10.16 Primary end cut-off lightning impulse withstand voltage test (33) 10.17 Wet test of outdoor three-phase combined transformer (34) 10.18 Short-term current test (35) 10.19 Short circuit withstand capability test (36) 10.20 Shell protection level test (38) 10.21 Sealing performance at ambient temperature (38) 11 Table of measuring instruments and equipment used in test items (39) Appendix A Type Evaluation Record Format (41) Appendix B Type Evaluation Report Format (43) Appendix C Format of "Description" for Type Evaluation Preservation Prototype (49) Appendix D Direct Measurement Method of Magnetic Saturation Margin (50)

Introduction

This outline is based on JJF 1016-2014 "Guidelines for the Compilation of Outlines for Measuring Apparatus Type Evaluation", JJF 1015-2014 Compiled with "General Specification for Type Evaluation of Measuring Instruments". This outline is published for the first time. Outline of type evaluation for measuring transformer Part 6.Three-phase combined transformer

1 Scope

This outline is applicable to the type evaluation of three-phase combined transformers with a classification code of 15280000. This outline is applicable to the measurement of power supply gas, the rated frequency is 50Hz, and the maximum voltage of the equipment is Um Electromagnetic three-phase combined transformer.

2 Reference documents

The outline cited the following documents. JJG313 measuring current transformer JJG314 measuring voltage transformer GB/T 4208-2017 enclosure protection level (IP code) GB/T 4756 Manual sampling method of petroleum liquid GB/T 5465.2 Graphical symbols for electrical equipment Part 2.Graphical symbols GB/T 5585.1 Copper, aluminum and its alloy busbars for electrical purposes Part 1.Copper and copper alloy busbars GB/T 7354 Partial discharge measurement of high voltage test technology GB/T 16927.1 High voltage test technology Part 1.General definition and test requirements GB/T 16927.2 High voltage test technology Part 2.Measurement system GB/T.20138 Protection level of electrical equipment shell against external mechanical collision (IK code) GB/T 20840.1-2010 Transformers Part 1.General technical requirements GB/T 20840.2 Transformers Part 2.Supplementary technical requirements for current transformers GB/T 20840.3-2013 Transformers Part 3.Supplementary technical requirements for electromagnetic voltage transformers GB/T 20840.4-2015 Transformers Part 4.Supplementary technical requirements for combined transformers GB/T 22071.1-2018 Test Guide for Transformer Part 1.Current Transformer GB/T 22071.2-2017 Test Guide for Transformer Part 2.Electromagnetic Voltage Transformer JB/T 5895-1991 Guidelines for the use of insulators in polluted areas JB/T 10432 three-phase combined transformer JB/T 10433 three-phase voltage transformer For dated reference documents, only the dated version applies to this specification; for those without date references The latest version (including all amendments) is applicable to this specification.

3 Terms and definitions

GB/T 20840.1, GB/T 20840.2, GB/T 20840.3, GB/T 20840.4 and JB/T 10432 The terms and definitions defined in and below apply to this outline. 3.1 routine test routinetest In order to reflect the manufacturing defects, each equipment withstands the test. These tests do not damage the characteristics and reliability of the product. ......

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