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JJF 1701.5-2019 English PDF

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JJF 1701.5-2019: Program of Pattern Evaluation of Instrument Transformers--Part 5: Capacitor Voltage Transformers
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Basic data

Standard ID JJF 1701.5-2019 (JJF1701.5-2019)
Description (Translated English) Program of Pattern Evaluation of Instrument Transformers--Part 5: Capacitor Voltage Transformers
Sector / Industry Metrology & Measurement Industry Standard
Classification of Chinese Standard A55
Classification of International Standard 17.220
Word Count Estimation 49,428
Date of Issue 2019
Date of Implementation 2020-03-31
Issuing agency(ies) State Administration for Market Regulation

JJF 1701.5-2019: Program of Pattern Evaluation of Instrument Transformers--Part 5: Capacitor Voltage 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 5.Capacitor Voltage Transformers National Measurement Technical Specification of the People's Republic of China Outline of type evaluation for measuring transformer Part 5.Capacitive voltage 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 5.Capacitive voltage transformer Transformers-Part 5.Capacitor Centralized unit. National Electromagnetic Measurement Technical Committee High-voltage Measurement Sub-Technical Committee Main drafting unit. China Electric Power Research Institute Co., Ltd. National High Voltage Metering Station Participated in the drafting unit. Xi'an High Voltage Electric Apparatus Research Institute Co., Ltd. Jiangsu Siyuan Hertz Transformer 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. Liu Xiang (China Electric Power Research Institute Co., Ltd.) Chen Peng (China Electric Power Research Institute Co., Ltd.) Fan Yang (China Electric Power Research Institute Co., Ltd.) Jiang Chunyang (National High Voltage Metering Station) Participating drafters. Ren Wenzhu (Xi'an High Voltage Electric Apparatus Research Institute Co., Ltd.) He Jian (Jiangsu Siyuan Hertz Transformer Co., Ltd.)

table of Contents

Introduction (Ⅲ) 1 Scope (1) 2 References (1) 3 Terminology (1) 3.1 Routine test (1) 4 Overview (1) 5 Legal management requirements (2) 5.1 Unit of measurement (2) 5.2 External structure (2) 5.3 Logo (2) 5.4 Submitted technical materials (3) 6 Measurement requirements (3) 6.1 Accuracy level (3) 6.2 Measurement interval (3) 6.3 Winding polarity (3) 6.4 Error limits (3) 7 General technical requirements (4) 7.1 Operating environmental conditions (4) 7.2 Appearance and structure (4) 7.3 Technical requirements (4) 8 List of Type Evaluation Items (8) 9 Provide the number of prototypes and how to use them (10) 9.1 General requirements (10) 9.2 Number of prototypes provided (10) 9.3 How to use the prototype (10) 10 Test methods and conditions of test items, data processing and qualification criteria (10) 10.1 General test conditions (10) 10.2 Accuracy test (initial test) (11) 10.3 Temperature rise test (12) 10.4 Capacitance and dielectric loss factor measurement (initial test) (15) 10.5 Electromagnetic Compatibility (EMC) Test-Radio Interference Voltage (RIV) Test (16) 10.6 Truncated lightning impulse test (17) 10.7 Primary end impact pressure test (18) 10.8 Wet test of outdoor type transformer (19) 10.9 Ferromagnetic resonance test (21) 10.10 Short circuit withstand capability test (22) 10.11 Accuracy test (22) 10.12 Inspection of enclosure protection level (23) 10.13 Sealing performance test at ambient temperature-sealing performance test of capacitor divider (25) 10.14 Capacitance and dielectric loss factor measurement (retest) (25) 10.15 Primary-end power frequency withstand voltage test-power frequency withstand voltage test for capacitor voltage divider (26) 10.16 Partial discharge measurement (27) 10.17 Capacitance and dielectric loss factor measurement (final measurement) (28) 10.18 Inspection of signs (29) 10.19 Primary power frequency withstand voltage test-power frequency withstand voltage test of electromagnetic unit (29) 10.20 Secondary-end power frequency withstand voltage test (31) 10.21 Ferromagnetic resonance inspection (31) 10.22 Accuracy test (retest) (31) 10.23 Sealing performance test at ambient temperature-electromagnetic unit sealing performance test (32) 10.24 Insulation oil performance test of electromagnetic unit (32) 11 Table of measuring instruments and equipment used in the test project (34) Appendix A Type Evaluation Record Format (35) Appendix B Type Evaluation Report Format (37) Appendix C Format of "Description" for Type Evaluation Preservation Prototype (43)

Introduction

This outline is based on JJF 1016-2014 "Guidelines for the Compilation of Outlines for Evaluation of Measuring Instruments" 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 5.Capacitive voltage transformer

1 Scope

This outline is applicable to the type evaluation of measuring voltage transformers with classification code 15281000 for measuring instruments. This outline is applicable to capacitors used for power supply gas measurement, with a frequency of 50 Hz and a rated secondary voltage of 100/3V Type voltage transformer.

2 Reference documents

The outline cited the following documents. JJG314 measuring voltage transformer GB/T 156 standard voltage GB/T 311.1 Insulation coordination Part 1.Definitions, principles and rules GB/T 4208 enclosure protection level (IP code) GB/T 5585.1 Copper, aluminum and its alloy busbars for electrical purposes Part 1.Copper and copper alloy busbars GB/T 11604 High-voltage electrical equipment radio interference test method 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 20840.5-2013 Transformers Part 5.Supplementary requirements for capacitive voltage transformers GB/Z 24841-2018 Technical Specification for Capacitive Voltage Transformer for 1000kV AC System 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 Terminology

The terms used in the documents cited in this outline and the following terms apply to this outline. 3.1 routine test routinetest In order to reflect the manufacturing defects, each equipment is subjected to tests that do not damage the product's characteristics and reliability. Rely on sex.

4 Overview

Capacitive voltage transformer is a special voltage transformer based on capacitive voltage divider, using capacitive voltage divider The high voltage is reduced to an intermediate voltage, and then the electromagnetic unit is converted into a low voltage according to the proportional requirements, which is used for voltage monitoring and electrical Can be measured. The capacitive voltage transformer is mainly composed of a capacitive voltage divider and an electromagnetic unit. The electromagnetic unit consists of an intermediate voltage

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