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JJF 1691-2018 English PDF

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US$439.00 · In stock
Delivery: <= 4 days. True-PDF full-copy in English will be manually translated and delivered via email.
JJF 1691-2018: Calibration Specification for Impulse Voltage Testers for Winding Interturn Insulation
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
JJF 1691-2018	439	Add to Cart	4 days	Calibration Specification for Impulse Voltage Testers for Winding Interturn Insulation	Valid

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Basic data

Standard ID: JJF 1691-2018 (JJF1691-2018)
Description (Translated English): Calibration Specification for Impulse Voltage Testers for Winding Interturn Insulation
Sector / Industry: Metrology & Measurement Industry Standard
Classification of Chinese Standard: A55
Word Count Estimation: 19,120
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 1691-2018: Calibration Specification for Impulse Voltage Testers for Winding Interturn Insulation

---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.
(Winding Interturn Insulation Impact Voltage Tester Calibration Specification) National Metrology Technical Specification of the People's Republic Winding interturn insulation impulse voltage tester calibration specification Published on.2018-02-27 2018-05-27 implementation The General Administration of Quality Supervision, Inspection and Quarantine issued Winding interturn insulation shock Voltage tester calibration specification Focal Point. National Electromagnetic Measurement Technical Committee Main drafting unit. Shandong Institute of Metrology Guangdong Institute of Metrology Shandong Metrology Testing Center Zhenjiang City Metrology Verification Test Center Participated in the drafting unit. Changzhou Institute of Metrology and Testing Technology Qingdao Aino Intelligent Instrument Co., Ltd. Changzhou Tonghui Electronics Co., Ltd. This specification entrusts the National Electromagnetic Measurement Technical Committee to explain The main drafters of this specification. Li Daomin (Shandong Institute of Metrology) Gu Ying (Guangdong Institute of Metrology) Wang Xinyu (Shandong Metrology Testing Center) Cao Jianqiu (Zhenjiang Metrology Verification Test Center) Participate in the drafters. Li Xin (Changzhou Institute of Metrology and Testing Technology) Wang Yanwei (Qingdao Ainuo Intelligent Instrument Co., Ltd.) Zhao Haohua (Changzhou Tonghui Electronics Co., Ltd.)

Introduction (II) 1 Scope (1) 2 References (1) 3 terms (1) 3.1 Peak (1) 3.2 Wavefront time (1) 4 Overview (2) 5 Measurement characteristics (2) 5.1 Output surge voltage peak (2) 5.2 Wavefront time (2) 5.3 Shock voltage wave symmetry (2) 5.4 Waveform coincidence (2) 5.5 Relative difference of waveform area (2) 6 Calibration conditions (2) 6.1 Environmental conditions (2) 6.2 Metering standard used (2) 7 Calibration items and calibration methods (3) 7.1 Calibration Project (3) 7.2 Calibration method (3) 8 calibration result expression (5) 8.1 Calibration Certificate (5) 9 re-study interval (6) Appendix A Example of Evaluation of Output Shock Voltage Peak Measurement Uncertainty (7) Appendix B Calibration Original Record Format (10) Appendix C Calibration Certificate Page Format (12)

Introduction

This specification is based on the National Metrology Technical Specification JJF 1071-2010 "Rules for the Preparation of National Metrology Calibration Specifications", JJF 1001-2011 "General Measurement Terms and Definitions", JJF 1059.1-2012 "Measurement Uncertainty Evaluation and Table" Show". This specification is the first release. Winding interturn insulation impulse voltage tester calibration specification

1 Scope

This specification applies to analog and digital winding turn-to-turn insulation with a maximum output voltage peak of not more than 15kV. Calibration of the voltage tester (hereinafter referred to as the winding inter-turn tester). This specification does not apply to the withstand voltage tester for AC and DC voltage output. The output voltage waveform is sine wave, wavefront cut Calibration of broken lightning impulses and rectangular shockwave withstand voltage testers.

2 reference files

This specification refers to the following documents. Safety of electrical equipment for measurement, control and laboratory use - Part 1. General requirements GB/T 22719.2 AC low-voltage motor, embedded winding, turn-to-turn insulation, part 2. test limit JB/T 7080 winding turn-to-turn insulation impulse voltage tester For dated references, only dated versions apply to this specification; undated quotations The latest version (including all amendments) applies to this specification.

3 terms

3.1 peak peak For a smooth shock waveform, the waveform curve deviates from the maximum of the zero line. 3.2 wavefront time wavefronttime For a smooth shock waveform, the amplitude is the A and B points of the voltage peak specified by the amplitude. The point A of the pressure waveform rises to 1.67 times the time T experienced by point B. As shown in Figure 1. Description. T1=1.67T Fig.1 Determination of time parameters of the impulse voltage waveform of the winding inter-turn tester ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of JJF 1691-2018_English be delivered?

Answer: Upon your order, we will start to translate JJF 1691-2018_English as soon as possible, and keep you informed of the progress. The lead time is typically 2 ~ 4 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of JJF 1691-2018_English with my colleagues?

Answer: Yes. The purchased PDF of JJF 1691-2018_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.

Question 3: Does the price include tax/VAT?

Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countries

Question 4: Do you accept my currency other than USD?

Answer: Yes. If you need your currency to be printed on the invoice, please write an email to Sales@ChineseStandard.net. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.