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Delivery: <= 5 days. True-PDF full-copy in English will be manually translated and delivered via email. JJF 1701.1-2018: Program of Pattern Evaluation of Instrument Transformers--Part 1: Standard Current Transformers Status: Valid
Basic dataStandard ID: JJF 1701.1-2018 (JJF1701.1-2018)Description (Translated English): Program of Pattern Evaluation of Instrument Transformers--Part 1: Standard Current Transformers Sector / Industry: Metrology & Measurement Industry Standard Classification of Chinese Standard: A55 Word Count Estimation: 29,242 Date of Issue: 2018-02-27 Date of Implementation: 2018-05-27 Regulation (derived from): AQSIQ Announcement No. 26 of 2018 Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine JJF 1701.1-2018: Program of Pattern Evaluation of Instrument Transformers--Part 1: Standard Current 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. (Measurement Transformer Type Evaluation Outline Part 1. Standard Current Transformer) National Metrology Technical Specification of the People's Republic Measuring transformer type evaluation outline Part 1. Standard current transformers Part 1. StandardCurrentTransformers Published on.2018-02-27 2018-05-27 implementation The General Administration of Quality Supervision, Inspection and Quarantine issued Measuring transformer type evaluation outline Part 1. Standard current transformers Transformers-Part 1. StandardCurrent Transformers Focal Point. National Electromagnetic Measurement Technical Committee High Voltage Measurement Subcommittee Main drafting unit. National High Voltage Metering Station State Grid Corporation State Grid Shanghai Electric Power Company Participated in drafting unit. China Electric Power Research Institute State Grid Anhui Electric Power Company Electric Power Research Institute State Grid Hubei Electric Power Company Measurement Center State Grid Hunan Electric Power Company Electric Power Research Institute This syllabus is entrusted to the National Electromagnetic Metrology Technical Committee High Voltage Measurement Subcommittee to explain The main drafters of this syllabus. Wang Huan (National High Voltage Metering Station) Peng Chuning (State Grid Corporation) Tang Yuezhong (State Grid Shanghai Electric Power Company) Participate in the drafters. Huang Hua (China Electric Power Research Institute) Zhou Lihua (State Grid Anhui Electric Power Company Electric Power Research Institute) Li Jun (Guowang Hubei Electric Power Company Metrology Center) Zhou Weihua (State Grid Hunan Electric Power Company Electric Power Research Institute) table of ContentsIntroduction (III) 1 Scope (1) 2 References (1) 3 Terms and definitions (1) 4 Overview (1) 5 Legal management requirements (2) 5.1 Unit of measurement (2) 5.2 External structure (2) 5.3 Signs and logos (2) 6 Measurement requirements (2) 6.1 Accuracy level (2) 6.2 Measurement interval (3) 6.3 Winding Polarity (3) 6.4 Basic error (3) 6.5 Error at extreme operating temperature (3) 6.6 Stability (3) 7 General technical requirements (3) 7.1 Working conditions (3) 7.2 Appearance (3) 7.3 Insulation strength (4) 7.4 Transportation Vibration (4) List of 8 types of evaluation items (4) 9 Provide the number of prototypes and how to use the prototype (5) 9.1 Number of prototypes provided (5) 9.2 How to use the prototype (5) 10 Test conditions and methods of test items and data processing and qualification criteria (5) 10.1 Test conditions of the project (5) 10.2 Appearance (6) 10.3 Dielectric strength (6) 10.4 Winding Polarity (7) 10.5 Basic error (7) 10.6 Error at extreme operating temperature (10) 10.7 Transportation Vibration (10) 10.8 Stability (10) 11 Measuring instruments and equipment used in the test items (11) Appendix A Type Evaluation Record Format (12) Appendix B Type Evaluation Report Format (17) Appendix C Type Evaluation Save the prototype's "Description" format (22)IntroductionThe basis for the preparation of this type of evaluation syllabus is JJF 1016-2014 "Guidelines for the preparation of type evaluation scales for measuring instruments". This syllabus is the first release. Transformer type evaluation outline for measurement - Part 1. Standard current transformer1 ScopeThis outline applies to rated frequencies of 50 Hz or 60 Hz, operating voltages of 500 V and below, and accuracy levels. Standard current transformer type evaluation test from 0.001 to 0.1.2 reference filesThis outline refers to the following documents. JJG313 Current Transformer for Measurement GB/T 4857.3 Packaging and transport packages - Basic test - Part 3. Static load stacking test method GB/T 4857.10 Basic test for packaging and transport packages - Part 10. s. SJ3213 General Electronic Product Transportation Packaging Basic Test Method Automobile Transportation Test Note. For dated references, only the dated version applies to this specification; for undated references, the most The new version (including all amendments) applies to this specification.3 Terms and definitionsThe terms and definitions used in the references to this syllabus and the following terms and definitions apply to this syllabus. 3.1 Two-stage current transformer two-stagecurrenttransformer The coil contains a double-core precision current transformer consisting of two-stage current transformers. 3.2 Two-stage load capacity two-stageloadcapacity The two-stage current transformer secondary compensation winding is subjected to the maximum load capacity.4 OverviewA current transformer is an electrical instrument that converts current according to the rated current ratio to facilitate measurement. It consists of a core and a wire wound around the iron. The winding on the core is composed, Figure 1 (a) is the single-stage current transformer principle circuit, and Figure 1 (b) is the two-stage current transformer The principle circuit, the current transformer windings and the windings and the iron core are insulated by insulation. (a) Single-stage current transformer (b) Two-stage current transformer Figure 1 Standard current transformer principle circuit diagram T-single-stage current transformer core; first-stage iron core and second-stage iron core of T1, T2- two-stage current transformer; N1-primary winding; N2-secondary winding; NB-secondary secondary winding ...... |
