Sensitivity of compact fluorescent lamps during voltage sags: An experimental investigation

Hussain Shareef, Azah Mohamed, Khodijah Mohamed

Research output: Contribution to journalArticlepeer-review

12 Citations (Scopus)


The aim of this paper is to analyze the sensitivity of various compact fluorescent lamps (CFLs) which are used in residential and commercial applications during voltage sags. Laboratory tests were performed on different CFLs commonly available in the market. The tests are based on recent testing standards and utilizing a modern industrial power corruptor. For predefined malfunction criterion of zero illuminance condition, sag depth and duration are varied to construct individual voltage immunity curves. Experimental results show that all CFLs are sensitive to voltage sags and vary in a wide range. It also proves that some brands of CFLs having similar power rating are sensitive to both sag magnitudes and its duration. Finally a method to improve the sensitivity of CFLs to voltage sags is implemented. This technique increases the holdup time of the dc bus voltage by connecting additional dc capacitance at the rectifier output of the CFL's ballast circuit.

Original languageEnglish
Pages (from-to)22-31
Number of pages10
JournalWSEAS Transactions on Power Systems
Issue number1
Publication statusPublished - 2010
Externally publishedYes


  • Ballast
  • CFL
  • Ride through capability
  • Voltage sag
  • Voltage tolerance curves

ASJC Scopus subject areas

  • Cultural Studies
  • Anthropology
  • Sociology and Political Science
  • Urban Studies


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