JJG 1075-2012 English PDF

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JJG 1075-2012: Verification Regulation of High Voltage Standard Capacitors
Status: Valid

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Basic data

Standard ID: JJG 1075-2012 (JJG1075-2012)
Description (Translated English): Verification Regulation of High Voltage Standard Capacitors
Sector / Industry: Metrology & Measurement Industry Standard
Classification of Chinese Standard: A55
Classification of International Standard: 17.220
Word Count Estimation: 18,116
Quoted Standard: JJG 496-1996; JJG 563-2004; GB/T 16927.1
Regulation (derived from): AQSIQ Announcement No. 35 of 2012
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine
Summary: This standard applies to the rated frequency of 50 (60) Hz, rated voltage of 10kV and above shielded high voltage standard capacitor electrode structure of the initial verification, testing and use of follow-up checks.

JJG 1075-2012: Verification Regulation of High Voltage Standard Capacitors

---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.
Verification Regulation of High Voltage Standard Capacitors State verification procedures People's Republic of China High voltage standard capacitor Issued on. 2012-03-02 2012-06-02 implementation The State Administration of Quality Supervision, Inspection and Quarantine released High voltage standard capacitor Verification Regulation acitors Focal point. the National Technical Committee on Electromagnetic measurement The main drafting units. the national high voltage metering station Hubei Electric Power Company Electric Power Research Institute Xinjiang Institute of Metrology Participated in the drafting unit. Sichuan Electric Power Research Institute Anhui Electric Power Research Institute Haisi Electrical Equipment Co., Ltd. The measurement procedure commissioned the National Technical Committee is responsible for interpreting electromagnetic The main drafters of this procedure. Wangle Ren (the national high voltage metering station) Item Joan (the national high voltage metering station) Wang Yongqin (Electric Power Research Institute Hubei Electric Power Company) Zhang Song Qiang (Xinjiang Institute of Measurement and Testing) Drafters participate. Yuan Heng (Sichuan Electric Power Research Institute) Zhu Qi (Anhui Electric Power Research Institute) Zhu Bin (Haisi Electrical Equipment Co., Ltd.)

table of Contents

Introduction (Ⅱ) 1 Scope (1) 2. References (1) 3 Overview (1) 4 metering performance requirements (1) Capacitance error 4.1 (1) 4.2 Dissipation Factor (1) 4.3 voltage coefficient (2) 4.4 included a capacitive voltage divider (2) 4.5 Stability (2) 5 General Requirements (2) 5.1 Nameplate, terminals and marking (2) 5.2 dielectric strength (2) 5.3 pressure gauge (3) 5.4 protection device (3) 6 Control of measuring instruments (3) 6.1 Verification condition (3) 6.2 Verification Project (4) 6.3 Verification Methods (4) Processing 6.4 Verification Results (6) 6.5 test cycle (6) Appendix A test original record format (7) Appendix B test certificates/test results in the notice page format (9)

Introduction

This procedure based on JJF1002-2010 "national verification procedures write rules" establishment. This procedure uses a reference JB1811-1992 "compressed gas capacitor" relevant compressed gas capacitor measurability Energy requirements and with JJG 496-1996 "frequency high voltage divider" has been promulgated, JJG 563-2004 "high-voltage Yung bridge ", JJG 1021-2007" power transformer "and JJG 314-2010" measuring voltage transformer "phase coordination. This procedure is the first national verification procedures developed. High voltage standard capacitor test procedures

1 Scope

The order applies to the nominal frequency of 50 (60) Hz, rated voltage of 10kV or more, and the shield electrode structure High voltage standard capacitor initial verification, subsequent verification and the use of checks. 2. References This procedure refers to the following documents. JJG 496-1996 frequency high voltage divider JJG 563-2004 high voltage capacitance bridge GB/T 16927.1 High-voltage test techniques Part 1. General test requirements For dated references, only the edition applies to the procedure; undated reference documents Member, the latest edition (including any amendments) applies to this procedure.

3 Overview

High voltage standard capacitor is stability of capacitance and dissipation factor of the order of 10-4 or more have reached a high voltage precision Capacitors. Its structure includes a high voltage electrode with a metal electrode material, electrode and a shielding electrode measurements, it must Edge structure includes supporting the high voltage electrode and the insulation of high voltage electrode and the shield electrode holder fixed measurement. gas Insulated high voltage standard capacitor electrode sealed in a pressure vessel, the vessel is filled with SF6, N2, CO2 such must Edge of the gas; standard insulated high voltage electrode is vacuum sealed in a container capacitor in a high vacuum. Loss of tiny solid and Liquid materials may also be used as a standard high-voltage capacitor dielectric. High voltage standard capacitor of the most important performance measurement of electrical capacity and the loss factor and the operating voltage correlation (Referred to as the voltage coefficient) is extremely small, the order of 10-5 to reach. Therefore their capacity and dissipation factor can be lower Voltage (for example, 10% of the rated voltage) calibration, and then under a high voltage as capacitance and loss factor of the standard device use.

4 metering performance requirements

4.1 capacitance error Under reference conditions shown in Table 1, the high voltage standard capacitor capacitance found on the nameplate or certificate given nominal capacitance Deviation shall not exceed ± 0.3%. NOTE. When the nameplate value with a valid certificate value inconsistent with a valid certificate values prevail. Articles in the case of the following nameplate value with a valid certificate They are treated similarly inconsistent values. 4.2 Loss Factor The nominal reference conditions in table 1, high voltage standard capacitor loss factor found on the nameplate or certificate given Loss of value due to deviation shall not exceed ± 1 × 10-4. ......

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