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DL/T 823-2017Functional specification for inverse time overcurrent protection (English PDF)

反时限电流保护功能技术规范

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Issued by

National Energy Administration

Level / Type

National · Recommended

Issue date

December 27, 2017

Implementation date

June 1, 2018

Scope

DL/T 823-2017 is the English-translated version of 反时限电流保护功能技术规范.

DL/T 823-2017 — 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.

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Document preview — DL/T 823-2017

National Standard of the People's Republic of China

ICS: 29.240
Classification: K 45
Replacing: DL/T 823-2002

Issued by: National Energy Administration

What this standard covers1
Document data2
Standards quoted by this document3

What this standard covers

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.

Document data

International classification (ICS): 29.240.

Chinese classification (CCS): K45.

Estimated length of the Chinese original: 19,131 words.

Supersedes the earlier edition DL/T 823-2002.

Standards quoted by this document

GB/T 2900.1; GB/T 2900.17; GB/T 2900.49; GB/T 21711.1; IEC 60255-1-2009

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 13 pages — is available in the English PDF.

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