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GB/T 8554-1998 Transformers and inductors for use in electronic and telecommunication equipment --Measuring methods and test procedures via email in 1-3 business day VALID please email coc@codeofchina.com for quotation
JB/T 6300-2004 Controlling voltage transformers via email in 1-3 business day please email coc@codeofchina.com for quotation
GB 1094.1-2013 Power transformers—Part 1:General (USD) via email in 1-8 business day VALID
JB/T 10088-2004 Sound level for 6kV~500kV power transformers via email in 1-3 business day ABOLISHED please email coc@codeofchina.com for quotation
GB 20840.4-2015 Instrument transformers—Part 4:Additional requirements for combined transformers (USD) via email in 1-3 business day VALID
DL/T 1093-2008 Guide for reactance method to detect and diagnose winding defor mation of power transformer (USD) via email in 1-3 business day ABOLISHED
JB/T 7070.3-2002 Test guide for regulator Part 3: Test guide for magnetic control voltage regulator via email in 1-3 business day please email coc@codeofchina.com for quotation
JB/T 8506-2006 Specification and technical requirements for yellow-phosphorus furnace transformers (USD) via email in 1-3 business day ABOLISHED
GB/T 1094.18-2016 Power transformers—Part 18:Measurement of frequency response (USD) via email in 1-5 business day VALID
NB/T 42022-2013 Oil-immersed converter transformers for high voltage frequency control (USD) via email in 1-3 business day VALID
GB/T 18494.3-2012 Converter transformers—Part 3:Application guide (USD) via email in 1-8 business day VALID
JB/T 5356-2002 Test guide for current transformets test via email in 1-3 business day please email coc@codeofchina.com for quotation
GB 19212.13-2005 Safety of power transformers,power supply units and similar devices?Part 13:Particular requirements for constant voltage transformers via email in 1-3 business day ABOLISHED please email coc@codeofchina.com for quotation
GB 19212.8-2006 Safety of power transformers power supply units and similar - Part 8: Particular requirements for transformers for toys via email in 1-3 business day ABOLISHED please email coc@codeofchina.com for quotation
JB/T 8450-2005 Thermometers for transformer windings (USD) via email in 1-3 business day ABOLISHED
GB/T 26216.2-2010 DC current measuring device for HVDC transmission system—Part 2:Electromagnetic DC current measuring device (USD) via email in 1-3 business day ABOLISHED
JB/T 3955-2006 Mining general type power transformers (USD) via email in 1-3 business day ABOLISHED
GB 19212.6-2006 Safety of power transformers power supply units and similar - Part 6: Particular requirements for shaver transformers and shaver supply units via email in 1-3 business day ABOLISHED please email coc@codeofchina.com for quotation
GB/T 17468-1998 The guide for choice power transformers via email in 1-3 business day ABOLISHED please email coc@codeofchina.com for quotation
JB/T 2426-2004 Specification and technical requirements for three-phase station service transformers via email in 1-3 business day ABOLISHED please email coc@codeofchina.com for quotation
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