GB 6450-1986
Replaced
DL/T 2557-2022
Active
Industry standards-Electricity
DL/T 2557-2022 Guidelines for Voltage Applied on AC Side and Partial Discharge Field Test of Converter Transformer Valve Side Electrical Endurance Test Result and Practical Procedures for Substitution
DL/T 2557-2022 Guidelines for Voltage Applied on AC Side and Partial Discharge Field Test of Converter Transformer Valve Side Electrical Endurance Test Result and Practical Procedures for Substitution
Basic Information
Standard Code:
DL/T 2557-2022
Standard Type:
Industry standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
Power testing technology
ICS Name:
Transformers, reactors, and inductors
Publish Date:
2022-11-04
Implement Date:
2023-05-04
Scope
This document specifies the test methods and wiring, test conditions, test equipment, test procedures, test pass criteria, interference source identification and suppression requirements for the on-site tests of AC external insulation and partial discharge of converter transformers on the valve side. This document is applicable to the on-site tests of AC external insulation and partial discharge of converter transformers on the valve side conducted by using the series resonance test method.
Development Information
Related Standards
GB/T 7449-1987
Replaced
GB/T 7449-1987 Guide to the lightning impulse and switching impulse testing of power transformers and reactors
GB 13028-1991
Abolished
GB 13028-1991 Isolating transformers and safety isolating transformers Requirements
GB/T 14006-1992
Active
GB/T 14006-1992 Outline dimensions of transformers and inductors for use in telecommunication and electronic equipment—Part 1:Transformers and inductors using YEI-1 laminations
GB/T 14860-1993
Replaced
GB/T 14860-1993 Generic specification for transformers and inductors for use in telecommunication and electronic equipment
GB/T 15164-1994
Replaced