Effect of Filament Power Removal on a Fluorescent Lamp System

Effect of Filament Power Removal on a Fluorescent Lamp System

TitleEffect of Filament Power Removal on a Fluorescent Lamp System
Publication TypeConference Paper
Year of Publication1985
AuthorsRudolph R Verderber, Oliver C Morse, Francis M Rubinstein
Conference NameAnnual IEEE-IAS Conference
Date Published10/1985
Conference LocationToronto, Canada
Call NumberLBL-19779
Abstract

Two techniques are used to measure the effect of removing the filament power from a two-lamp, F-40, rapid-start fluorescent lamp system. The changes are measured for a standard CBM core-coil ballast and for a solid-state ballast operating the lamp at high frequency. There is a 4 to 6% increase in system efficacy when the filament power is removed. Removal of filament power also decreases filament temperature from 1000 °C below 700 °C in lamps operated at 60 Hz, and from above 600 °C to 300 °C in lamps operated at high frequency. The study shows that the arc current and anode fall also determine filament temperature.

LBNL Report Number

LBL-19779