http://www.environmentalleader.com/2008/10/16/lime-outlines-steps-involved-in-lighting-retrofit-projects/ The Executive's Daily Green Briefing Tue, 24 Nov 2009 04:35:28 -0800 http://wordpress.org/?v=2.8.4 hourly 1 http://www.environmentalleader.com/2008/10/16/lime-outlines-steps-involved-in-lighting-retrofit-projects/comment-page-1/#comment-80615 V. Da grosa Fri, 17 Oct 2008 04:08:16 +0000 http://www.environmentalleader.com/2008/10/16/lime-outlines-steps-involved-in-lighting-retrofit-projects/#comment-80615 Lighting retrofit should also be looked at reduction of 3rd order harmonics due to high energy ballasts in florescent fixtures. With single phase non-linear loads, computers,fax, printers this allows neutral currents to double cause heating in cables and transformers. Did some pioneering work on "power Quality" when desk top computers came into indusry around 1986. Did work in Sears tower with variable voltage control on florescent lighting. Lighting retrofit should also be looked at reduction of 3rd order harmonics due to high energy ballasts in florescent fixtures. With single phase non-linear loads, computers,fax, printers this allows neutral currents to double cause heating in cables and transformers. Did some pioneering work on “power Quality” when desk top computers came into indusry around 1986. Did work in Sears tower with variable voltage control on florescent lighting.

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