

Title | Effect of Filament Power Removal on a Fluorescent Lamp System |
Publication Type | Conference Paper |
Year of Publication | 1985 |
Authors | Rudolph R Verderber, Oliver C Morse, Francis M Rubinstein |
Conference Name | Annual IEEE-IAS Conference |
Date Published | 10/1985 |
Conference Location | Toronto, Canada |
Call Number | LBL-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 |