GB 6450-1986
Replaced
GB/T 20840.2-2014
Active
National standards
GB/T 20840.2-2014 Instrument transformers—Part 2:Additional requirements for current transformers
GB/T 20840.2-2014 Instrument transformers—Part 2:Additional requirements for current transformers
Basic Information
Standard Code:
GB/T 20840.2-2014
Standard Type:
National standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
Transformer
ICS Name:
Transformers, reactors, and inductors
Publish Date:
2014-09-03
Implement Date:
2015-08-03
Pages:
62 pages
Scope
This part of GB 20840 is applicable to newly manufactured electromagnetic current transformers used in electrical measuring instruments or/and electrical protection devices, with a frequency of 15 Hz to 100 Hz.
Development Information
Replace the following standards
Adopt standards
IEC 61869-2:2012
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