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Jan 29, 2007Keywords:
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Mains voltage profile in Dar es Salaam: A case study
Abstract
Electrical and electronic systems and equipment need the mains supply voltage to be at normal level and to remain stable to ensure proper operation and long service. However, the stability of the mains supply and level has been observed to be a problem in Tanzania for sometime now, particularly in residential areas. This paper presents the results of a study made over a period of six months in various parts of Dar-es-Salaam. The result confirms that power quality in a number of places is unacceptable, particularly between 6 and 9 p.m. when the voltage drop is as low as 40% and surges as high 17.4% above the normal value. The paper further proposes methods to address the problems at the consumer end.
Keywords: Voltage instability, under-voltage, over-voltage, shedding, brownouts, voltage dips, voltage sags, voltage regulation
Journal of Agriculture, Science and Technology Vol. 8 (1) 2006: pp. 75-91
