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JJF 2041-2023 English PDF

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US$599.00 · In stock
Delivery: <= 5 days. True-PDF full-copy in English will be manually translated and delivered via email.
JJF 2041-2023: Method for Transformer Secondary Loop Voltage Drop and Loads Field Testing
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
JJF 2041-2023	599	Add to Cart	5 days	Method for Transformer Secondary Loop Voltage Drop and Loads Field Testing	Valid

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Basic data

Standard ID: JJF 2041-2023 (JJF2041-2023)
Description (Translated English): Method for Transformer Secondary Loop Voltage Drop and Loads Field Testing
Sector / Industry: Metrology & Measurement Industry Standard
Word Count Estimation: 29,280
Date of Issue: 2023-06-30
Date of Implementation: 2023-12-30
Issuing agency(ies): State Administration for Market Regulation

JJF 2041-2023: Method for Transformer Secondary Loop Voltage Drop and Loads Field Testing

---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.
National Metrology Technical Specifications of the People's Republic of China Field test method for secondary voltage drop and secondary load of transformer FieldTesting Published on 2023-06-30 Implemented on 2023-12-30 Released by the State Administration for Market Regulation Transformer secondary voltage drop and secondary Load field testing method Responsible unit. High Voltage Measurement Sub-Technical Committee of National Electromagnetic Measurement Technical Committee Main drafting unit. Marketing Service Center of State Grid Zhejiang Electric Power Co., Ltd. State Grid Zhejiang Electric Power Co., Ltd. Electric Power Research Institute National High Voltage Metering Station Unit participating in the drafting. State Grid Jibei Electric Power Co., Ltd. Marketing Service Center (Measurement Center) State Grid Shandong Electric Power Company Marketing Service Center (Measurement Center) State Grid Shanghai Electric Power Company Electric Power Research Institute Ningbo Sanwei Electrical Testing Equipment Co., Ltd. This specification is entrusted to the High Voltage Measurement Sub-Technical Committee of the National Electromagnetic Measurement Technical Committee to be responsible for interpretation. The main drafters of this specification. Xu Lingjie (Marketing Service Center of State Grid Zhejiang Electric Power Co., Ltd.) Lu Jifan (Electric Power Research Institute of State Grid Zhejiang Electric Power Co., Ltd.) Yue Changxi (National High Voltage Metering Station) Participating drafters. Xu Zhanhe [Marketing Service Center (Measurement Center) of State Grid Jibei Electric Power Co., Ltd.] Yang Jian [State Grid Shandong Electric Power Company Marketing Service Center (Measurement Center)] Yuan Zhiwen (State Grid Shanghai Electric Power Company Electric Power Research Institute) Zhu Chongye (Ningbo Sanwei Electrical Measurement Equipment Co., Ltd.)

Introduction(Ⅱ) 1 Scope(1) 2 Cited documents(1) 3 Terms and Definitions(1) 4 Test conditions(1) 4.1 Environmental conditions(1) 4.2 Equipment requirements(1) 5 test items(3) 6 Test steps(3) 6.1 Preparation before test(3) 6.2 Voltage transformer secondary voltage drop test steps (3) 6.3 Transformer secondary load test steps (6) 7 Processing of test results(8) Appendix A Working principle of voltage transformer secondary voltage drop tester (10) Appendix B Self-calibration method of voltage transformer secondary voltage drop tester (13) Appendix C Voltage Transformer Secondary Voltage Drop Test Original Record Format (15) Appendix D Original record format of voltage transformer secondary load test (17) Appendix E Original record format of secondary load test of current transformer (19) Appendix F Inner page format of secondary voltage drop test report for voltage transformer with three-phase three-wire connection (20) Appendix G Inner page format of secondary voltage drop test report for voltage transformer with three-phase four-wire connection (21) Appendix H Voltage transformer secondary load test report inner page format (22) Appendix I Current transformer secondary load test report inner page format (23)

Introduction

This specification is in accordance with JJF 1001-2011 "General Metrology Terms and Definitions", JJF 1071-2010 "National Metrology Calibration Specification Writing Rules", and refer to GB/T.20001.4-2015 "Standard Writing Rules Part 4 Test Methods Requirements for the preparation of "Standards" are formulated. This specification is released for the first time. Field test method for secondary voltage drop and secondary load of transformer

1 Scope

This specification specifies the voltage drop of the voltage transformer secondary circuit and the secondary circuit voltage of the voltage transformer and current transformer under operating conditions. Field testing methods for secondary loads.

2 cited documents

This specification references the following documents. DL/T 1517-2016 Technical specifications for secondary pressure drop and secondary load field testing For dated references, only the dated version applies to this specification; for undated references, only the dated edition applies. The latest version (including all modification orders) shall apply to this specification.

3 Terms and definitions

The terms and definitions defined in DL/T 1517-2016 apply to this specification.

4 test conditions

4.1 Environmental conditions During on-site testing of the secondary voltage drop and secondary load of the transformer, the following environmental conditions should be met. ---Temperature. (-25~55)℃; ---Humidity. ≤85%RH; ---Power grid frequency during measurement. (50±0.5)Hz. 4.2 Equipment requirements 4.2.1 Equipment selection 4.2.1.1 For the on-site test of the secondary voltage drop of the voltage transformer, a wired secondary voltage drop tester and a wireless secondary voltage drop test are used. The basic working principle of the voltage transformer secondary voltage drop tester is shown in Appendix A; the voltage transformer and current transformer secondary The load test uses a special tester for the secondary load of the transformer. 4.2.1.2 For on-site testing of the secondary voltage drop of voltage transformers, the wired secondary voltage drop tester should be preferred. If you choose wireless When using a secondary pressure drop tester, different pressure drop testers should be selected according to the on-site environmental conditions. The selection requirements for wireless secondary voltage drop tester are as follows. a) It can be used in non-rainy weather, no strong electromagnetic field interference, and the voltage transformer and energy meter screen are both outdoors. Use satellite synchronization method wireless voltage drop tester; b) Where the voltage transformer is outdoors and the energy meter screen is indoors, the carrier synchronization method or crystal oscillator timing can be used. Synchronous method wireless voltage drop tester; c) In places where the wireless signal is blocked and communication is poor, you can use the optical fiber synchronization method wireless voltage drop tester. ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of JJF 2041-2023_English be delivered?

Answer: Upon your order, we will start to translate JJF 2041-2023_English as soon as possible, and keep you informed of the progress. The lead time is typically 3 ~ 5 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of JJF 2041-2023_English with my colleagues?

Answer: Yes. The purchased PDF of JJF 2041-2023_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.