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GB - Chinese national standards
Page 1346
GB/T 20837-2007 (16/01/2007)
Specification and technical requirements of oil-immersed smoothing reactors for HVDC applications
Available languages: English, Chinese
Available design: electronic design (pdf), Print design
from 313.80 EUR more info
GB/T 20838-2007 (16/01/2007)
Specification and technical requirements of oil-immersed convertor transformers for HVDC applications
Available languages: English, Chinese
Available design: electronic design (pdf), Print design
from 346.40 EUR more info
GB/T 20839-2025 (31/12/2025)
Intelligent transport systems—General terminology
Available languages: English, Chinese
Available design: electronic design (pdf), Print design
from 585.30 EUR more info
GB/T 20839.2-2007 (01/01/2007)
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Available languages: English, Chinese
Available design: electronic design (pdf), Print design
GB/T 20840.1-2010 (02/09/2010)
Instrument transformers—Part 1:General requirements
Available languages: English, Chinese
Available design: electronic design (pdf), Print design
GB/T 20840.1-2026 (30/07/2026)
Instrument transformers—Part 1General technical requirements
Available languages: English, Chinese
Available design: electronic design (pdf), Print design
GB/T 20840.10-2025 (24/01/2025)
Instrument transformers—Part 10Additional requirements for low-power passive current transformers
Available languages: English, Chinese
Available design: electronic design (pdf), Print design
from 824.10 EUR more info
GB/Z 20840.100-2023 (28/12/2023)
Instrument transformers—Part 100 Guidance for application of current transformers in power system protection
Available languages: English, Chinese
Available design: electronic design (pdf), Print design
GB/T 20840.102-2020 (31/03/2020)
Instrument transformers—Part 102:Ferroresonance oscillationsin substations with inductive voltage transformers
Available languages: English, Chinese
Available design: electronic design (pdf), Print design
from 1 052.20 EUR more info
GB/T 20840.103-2020 (31/03/2020)
Instrument transformers—Part 103:The use of instrument transformers for power quality measurement
Available languages: English, Chinese
Available design: electronic design (pdf), Print design
from 1 573.40 EUR more info
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