GB 6450-1986
Replaced
T/SXJD 15-2020
Active
Group standards
T/SXJD 15-2020 Power frequency current ratio metering instrument technical specification
T/SXJD 15-2020 Power frequency current ratio metering instrument technical specification
Price:
$ 20.00
Basic Information
Standard Code:
T/SXJD 15-2020
Standard Type:
Group standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
Electrician
ICS Name:
Transformers, reactors, and inductors
Publish Date:
2020-05-20
Implement Date:
2020-06-20
Scope
Scope: This standard specifies the terms and definitions, usage conditions, rated values and performance requirements, structural requirements, testing and inspection rules, packaging and storage for AC current ratio measuring instruments. This standard applies to AC current ratio measuring instruments with a rated frequency of 50Hz (or 60Hz) and accuracy classes ranging from 0.00002 to 0.002, including two-stage current transformers, zero-flux current transformers, and current comparators. Main technical content: Currently, there are no national standards for AC current ratio measuring instruments in China. GB/T 20840.2-2014 "Transformers - Part 2: Supplementary Technical Requirements for Current Transformers" specifies the accuracy classes of measurement current transformers as 5 to 0.1; JJG 313-2010 "Measurement Current Transformers" mainly regulates the verification of measurement current transformers with accuracy classes of 0.5 to 0.001; JJF 1701.1-2018 "Evaluation Outline for Standard Current Transformers - Part 1: Standard Current Transformers" mainly regulates the evaluation of standard current transformers with accuracy classes of 0.1 to 0.001; none of the above standards propose technical requirements for AC current ratio measuring instruments. JJF 1068-2000 "Calibration Specifications for AC Current Ratio Standard Devices" focuses on the calibration conditions, calibration methods, and calibration data processing for AC current ratio standard devices, without addressing the specific technical requirements for AC current ratio measuring instruments. Therefore, the title of the project is "Technical Conditions for AC Current Ratio Measuring Instruments". 1. Scope of application: This standard applies to AC current ratio measuring instruments with a rated frequency of 50Hz (or 60Hz) and accuracy classes ranging from 0.00002 to 0.002, including two-stage current transformers, zero-flux current transformers, and current comparators. 2. Main technical indi
Development Information
Related Standards
GB/T 7449-1987
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GB/T 7449-1987 Guide to the lightning impulse and switching impulse testing of power transformers and reactors
GB 13028-1991
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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