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JJG 1139-2017 English PDFStandard Briefing:Stadard ID: JJG 1139-2017Stadard Title: Low Voltage Metering Current Transformer Automatic Testing System Price (USD): 509 Lead day (Deliver True-PDF English version): 4 days Status: Valid
Basic Data:
Contents, Scope, and Excerpt:JJG 1139-2017 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 range (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 systemsScopeThis 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. ...... |