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Database: 189760 (25 Oct 2025)
DL/T 1690-2017 English PDF
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DL/T 1690-2017
: Guide for condition evaluation of current transformers
Status: Valid
Standard ID
Contents [version]
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Standard Title (Description)
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DL/T 1690-2017
English
259
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Guide for condition evaluation of current transformers
Valid
DL/T 1690-2017
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Basic data
Standard ID
DL/T 1690-2017 (DL/T1690-2017)
Description (Translated English)
Guide for condition evaluation of current transformers
Sector / Industry
Electricity & Power Industry Standard (Recommended)
Classification of Chinese Standard
F23
Classification of International Standard
29.240
Word Count Estimation
11,177
Date of Issue
2017-03-28
Date of Implementation
2017-08-01
Quoted Standard
DL/T 393-2010; DL/T 664; DL/T 1691
Regulation (derived from)
State Energy Bureau Announcement No.6 of 2017
Issuing agency(ies)
National Energy Administration
Summary
This standard specifies the classification of state information, the classification of state evaluation, the basic requirements for state evaluation, the quantitative criteria for state quantities, and the overall evaluation method for current transformers in operation. This standard applies to AC current transformers with a system voltage rating of 110 (66) kV to 500 kV.