N2 for Transformer

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ALI99 Member Join Date: Mar 2011 Posts: 9	N2 for Transformer 03/30/2011 7:41 AM
	What is the specification of N2 to use it as gas space
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PeterT Guru Join Date: May 2010 Location: Liverpool, NY Posts: 961 Good Answers: 131	#1 Re: N2 for Transformer 03/30/2011 8:38 AM
	Nitrogen for oil-filled transformer blanketing should meet ASTM D-1933 Type III, with -59C dewpoint, as specified in IEEE C-57.12.00-1993, paragraph 6.6.3. See the following good reference regarding transformer maintenance: http://www.usbr.gov/power/data/fist/fist3_30/fist3_30.pdf __________________ To get the right answers, first you need to ask the right questions.
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ALI99 Member Join Date: Mar 2011 Posts: 9	#2 Re: N2 for Transformer 04/02/2011 5:14 AM
	Thanks for your reply. ASTM D1933, Type III. Type III Nitrogen and rare gases, min, volume % 99.993 Hydrogen, max, volume % 0.005 Oxygen, max, volume % 0.002 Dew point, max, °C −59
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