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JJG 1139-2017: Low Voltage Metering Current Transformer Automatic Testing System
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| JJG 1139-2017 | English | 509 |
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Low Voltage Metering Current Transformer Automatic Testing System
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JJG 1139-2017
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Basic data | Standard ID | JJG 1139-2017 (JJG1139-2017) | | Description (Translated English) | Low Voltage Metering Current Transformer Automatic Testing System | | Sector / Industry | Metrology & Measurement Industry Standard | | Classification of Chinese Standard | A55 | | Classification of International Standard | 17.220 | | Word Count Estimation | 22,248 | | Date of Issue | 2017-02-28 | | Date of Implementation | 2017-05-28 | | Quoted Standard | JJG 169; JJG 313; JJG 795; JJG 1005; JJG 1021; JJF 1264 | | Regulation (derived from) | General Administration of Quality Supervision, Inspection and Quarantine No. 23 of 2017 | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine | | Summary | This standard applies to the rated voltage of 0.4kV and below, rated current 1500A and below metering with low-voltage current transformer automatic verification system (hereinafter referred to as "verification system") the first test, follow-up inspection and use of inspection. | JJG 1139-2017: Low Voltage Metering Current Transformer Automatic Testing System---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.
Low Voltage Metering Current Transformer Automatic Testing System
National Metrological Verification Regulation of the People's Republic of China
Low voltage current transformer for metering
Automated verification system
2017-02-28 released
2017-05-28 Implementation
State Administration of Quality Supervision, Inspection and Quarantine issued
Metering with low voltage current transformer automation
Verification system verification procedures
Unit. National Electromagnetic Metrology Technical Committee High Pressure Metering Subcommittee
Major drafting unit. National high voltage metering station
State Grid Corporation
State Grid Hubei Electric Power Company
Participated in the drafting unit. State Grid Chongqing Electric Power Company Electric Power Research Institute
State Grid Corporation of Sichuan Electric Power Company Electric Power Research Institute
State Grid Jiangsu Electric Power Company Electric Power Research Institute
This procedure is entrusted to the National Electromagnetic Metrology Technical Committee of the High Pressure Metrology Subcommittee.
The main drafters of this procedure.
Yue Changxi (national high voltage metering station)
Du Xin Gang (State Grid Corporation)
Lei Min (National High Voltage Metering Station)
Wang Qin (State Grid Hubei Electric Power Company)
Participate in the drafters.
Hou Xingzhe (State Grid Chongqing Electric Power Company Electric Power Research Institute)
Qin Jian (State Grid Sichuan Electric Power Company Electric Power Research Institute)
Huang Qifeng (State Grid Jiangsu Electric Power Company Electric Power Research Institute)
table of Contents
Introduction (II)
1 Scope (1)
2 References (1)
3 Terms and definitions (1)
4 Overview (2)
5 Measurement performance requirements (2)
5.1 Accuracy class (2)
5.2 Secondary circuit actual load (3)
5.3 Measurement Repeatability (3)
5.4 Multi-station consistency (3)
5.5 Calibration system error (3)
5.6 false detection rate (3)
5.7 false rate (4)
6 General technical requirements (4)
6.1 Appearance (4)
6.2 Insulation requirements (4)
7 Metering device control (4)
7.1 Test conditions (4)
7.2 Verification Project (5)
7.3 Verification method (6)
7.4 Processing of test result (8)
7.5 Test cycle (9)
Appendix A Test method for open circuit voltage tester (10)
Appendix B Verification Original Record Format (12)
APPENDIX C INSPECTION CERTIFICATE/QUALIFICATION RESULTS Notice Page Format (page 2) (15)
APPENDIX D INSPECTION CERTIFICATE/QUALIFICATION RESULTS Notice Page Format (Page 3) (16)
Introduction
This procedure is based on JJF1001-2011 "General Metrology Terms and Definitions", JJF1002-2010 "National Metrology
Verification rules to prepare rules "to develop.
This order is the first release.
Low voltage current transformer for metering
Verification procedures for automated verification systems
1 Scope
This procedure applies to the rated voltage of 0.4kV and below, rated current 1500A and below measurement with low-voltage current
The first verification, subsequent verification and use of the transformer automated verification system (hereinafter referred to as "verification system")
an examination.
2 reference file
This procedure refers to the following documents.
JJG 169 transformer calibrator
JJG 313 Measuring Current Transformer
JJG 795 withstand voltage tester
JJG 1005 electronic insulation resistance table
JJG 1021 Power Transformer
JJF1264 transformer load box calibration specification
For dated references, only the dated edition applies to this rule; references that are not dated
, The latest version (including all amendments) applies to this procedure.
3 terms and definitions
3.1 low-voltage current transformer for measurement lowvoltagemeteringcurrenttransformer
A current transformer mounted on a low voltage power line of 0.4 kV and below for metering purposes.
3.2 Automatic transformer test device automatictransformertingdevice
Integrated standard current transformer, transformer calibrator, load box, insulation resistance table, pressure tester, open circuit
Pressure tester and other equipment, transformer test device, in accordance with the requirements of the verification procedures to automatically complete the low-voltage current each other
Detection of the sensor operation.
3.3 low voltage current transformer automatic measurement system measurement low voltage meteringcurrent
transformerautomatictestingsystem
Integrated management platform, automatic transmission facilities and automatic transformer verification device intelligent test system, to finish
Into the automatic transmission of sensors, automatic verification, data processing and monitoring the whole.
3.4 false detection rate missratio
The proportion of the quantity of the unqualified test product to the total quantity of the test product.
3.5 misjudgment rate wrongratio
The number of qualified test products will be tested as the proportion of the total number of samples.
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