DL/T 823-2017 English PDFUS$439.00 ยท In stock
Delivery: <= 4 days. True-PDF full-copy in English will be manually translated and delivered via email. DL/T 823-2017: Functional specification for inverse time overcurrent protection Status: Valid DL/T 823: Historical versions
Basic dataStandard ID: DL/T 823-2017 (DL/T823-2017)Description (Translated English): Functional specification for inverse time overcurrent protection Sector / Industry: Electricity & Power Industry Standard (Recommended) Classification of Chinese Standard: K45 Classification of International Standard: 29.240 Word Count Estimation: 19,114 Date of Issue: 2017-12-27 Date of Implementation: 2018-06-01 Older Standard (superseded by this standard): DL/T 823-2002 Quoted Standard: GB/T 2900.1; GB/T 2900.17; GB/T 2900.49; GB/T 21711.1; IEC 60255-1-2009 Regulation (derived from): National Energy Administration Announcement No. 13 of 2017 Issuing agency(ies): National Energy Administration Summary: This standard specifies the technical requirements, performance indicators and test methods of the inverse time current protection functional components. The inverse time current protection functions covered by this standard include inverse time phase overcurrent protection; inverse time zero sequence overcurrent protection; stator overload protection; rotor overload protection; excitation circuit overload protection; thermal overload protection. This standard is applicable to relay protection devices for over-current and overload of power system lines or components, as the basis for the development, design, manufacture, test and operation of such products. Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of DL/T 823-2017_English be delivered?Answer: Upon your order, we will start to translate DL/T 823-2017_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 DL/T 823-2017_English with my colleagues?Answer: Yes. The purchased PDF of DL/T 823-2017_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+ countriesQuestion 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.Question 5: Should I purchase the latest version DL/T 823-2017?Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version DL/T 823-2017 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically. |