This standard proposes the technical parameters and requirements of current transformers. For details, please refer to clause 2. They are part of this standard and specify the basic contents of the technical parameters and requirements of current transformers. When proposing specific equipment technical parameters and requirements, the corresponding contents can be supplemented according to this standard and combined with the actual situation in the region. The following are the standards, procedures, specifications and guidelines that should be followed in the design, manufacture and testing of equipment, but not limited to them. GB311.1—1997 Insulation coordination of high-voltage power transmission and transformation equipment GB1208—1997 Current transformer GB16847—1997 Technical requirements for transient characteristics of protective current transformers GB/T7252—2001 Guidelines for analysis and judgment of dissolved gases in transformer oil GB/T7595—2000 Oil quality standard for transformers in operation GB/T17443—1998 Technical parameters and requirements for 500kV current transformers GB/T8905—1996 Guidelines for gas management and detection in sulfur hexafluoride electrical equipment GB/T13540—1992 Earthquake resistance test for high-voltage switchgear GB/T11604—1989 Radio interference test method for high-voltage electrical equipment
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