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Standard No.	Title	Price(USD)	Delivery	Status	Add to Cart
GB/T 19212.7-2012	Safety of transformers, reactors, power supply units and similar products for supply voltages up to 1 100 V - Part 7: Particular requirements and test for safety isolating transformers and power supply units incorporating saftey isolating transformers	$225.00	via email in 1~3 business day	valid,,2013-5-1
GB/T 19212.8-2012	Safety of power transformers power supplies reactors and similar products―Part 8:Particular requirements and tests for transformers and power supplies for toys	$225.00	via email in 1~3 business day	valid,,2013-5-1
GB/T 19212.9-2016	Safety of transformers,reactors,power supply units and combinations thereof―Part 9:Particular requirements and tests for transformers and power supply units for bells and chimes	$220.00	via email in 1~3 business day	valid,,2017-3-1
GB/T 20836-2007	Oil-immersed smoothing reactors for HVDC applications	$130.00	immediately	valid,,2007-8-1
GB/T 20837-2007	Specification and technical requirements of oil-immersed smoothing reactors for HVDC applications	$100.00	immediately	valid,,2007-8-1
GB/T 20838-2007	Specification and technical requirements of oil-immersed convertor transformers for HVDC applications	$100.00	immediately	valid,,2007-8-1
GB/T 20840.102-2020	Instrument transformers—Part 102: Ferroresonance oscillations in substations with inductive voltage transformers	$690.00	via email in 1~5 business day	valid,,2020-10-1
GB/T 20840.103-2020	Instrument transformers—Part 103：The use of instrument transformers for power quality measurement	$1300.00	via email in 1~10 business day	valid,,2020-10-1
GB/T 20840.14-2022	Instrument transformers―Part 14:Additional requirements for current transformers for DC applications	$675.00	via email in 1~5 business day	valid,,2023-5-1
GB/T 20840.15-2022	Instrument transformers―Part15:Additional requirements for voltage transformers for DC applications	$555.00	via email in 1~5 business day	valid,,2023-5-1
GB/T 20840.4-2015	Instrument transformers -- Part 4: Additional requirements for combined transformers	$440.00	via email in 1~5 business day	valid,,2016-6-1
GB/T 20840.5-2013	Instrument transformers—Part 5:Additional requirements for capacitor voltage transformers	$750.00	via email in 1~3 business day	valid,,2013-7-1
GB/T 20840.6-2017	Instrument transformers-Part 6:Additional general requirements for low-power instrument transformers	$900.00	immediately	valid,,2018-5-1
GB/T 20840.7-2007	Instrument transformers—Part 7:Electronic voltage transformers	$780.00	via email in 1~3 business day	valid,,2007-8-1
GB/T 20840.8-2007	Instrument transformers—Part 8:Electronic current transformers	$1410.00	via email in 1~3 business day	valid,,2007-8-1
GB/T 21419-2013	Safety of transformers,reactors,power supply units and combinations thereof—EMC requirements	$270.00	via email in 1~3 business day	superseded,2022-7-1,2013-12-2
GB/T 21419-2021	Transformers, power supplies, reactors and similar products—EMC requirements	$345.00	via email in 1~5 business day	valid,,2022-7-1
GB/T 22071.1-2008	Test guide for instrument transformers - Part 1: current transformers	$360.00	via email in 1~5 business day	abolished2019-07-01,2019-7-1,2009-4-1
GB/T 22071.1-2018	Test guide for instrument transformers—Part 1:Current transformers	$810.00	via email in 1~5 business day	valid,,2019-7-1
GB/T 22071.2-2008	Test guide for instrument transformers - Part 2: Inductive voltage transformers	$270.00	via email in 1~5 business day	superseded,2018-7-1,2009-4-1
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