Performance of LED lamps on distribution system voltage sags

Sohel Uddin, Hussain Shareef, Azah Mohamed, M. A. Hannan

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)


Voltage sag is one of the serious power quality problems especially for sensitive equipment. Electronic devices such as personal computers, lighting system may malfunction due to voltage sag events and may cause nuisance and financial losses in some cases. The purpose of this paper is to investigate the sensitivity of various low wattage LED lamps during voltage sag. It is done by conducting laboratory tests on various LED lamps available in local market. The test is based on current testing standard and utilizes modern industrial power corruptor and advanced photo detector. Results show that all the tested lamps are sensitive to voltage sags and have a wide range of variation in sensitivity in terms of both depth and duration of sag. Furthermore, it is found that these modern bulbs have comparable sensitivity level with respect to CFL's sag sensitivity.

Original languageEnglish
Pages (from-to)174-180
Number of pages7
JournalInternational Review on Modelling and Simulations
Issue number1
Publication statusPublished - Feb 2013
Externally publishedYes


  • Ballast circuit
  • LED amps
  • Voltage sag
  • Voltage tolerance curve

ASJC Scopus subject areas

  • Modelling and Simulation
  • General Chemical Engineering
  • Mechanical Engineering
  • Electrical and Electronic Engineering


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