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DL/T 823-2017 English PDF

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DL/T 823-2017: Functional specification for inverse time overcurrent protection
Status: Valid

DL/T 823: Historical versions

Standard IDUSDBUY PDFLead-DaysStandard Title (Description)Status
DL/T 823-2017439 Add to Cart 4 days Functional specification for inverse time overcurrent protection Valid
DL/T 823-2002559 Add to Cart 3 days General specification for microprocessor-based inverse time overcurrent protection equipment Obsolete

Similar standards

GB/T 19826   DL/T 540   NB/T 31018   DL/T 624   DL/T 277   DL/T 364   

Basic data

Standard 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Older Standard (superseded by this standard): DL/T 823-2002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.
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