DocumentCode :
2809594
Title :
Reducing the effect of sags and momentary interruptions: a total owning cost prospective
Author :
Degeneff, Robert C. ; Barss, Russ ; Carnovale, Daniel ; Raedy, Steven
Author_Institution :
Rensselaer Polytech. Inst., Troy, NY, USA
Volume :
2
fYear :
2000
fDate :
2000
Firstpage :
397
Abstract :
Power quality has become a major concern in today´s electric utility industry. This is a result of the fact that modern loads are often sensitive to variations in voltage. Voltage sags and momentary interruptions have proved to be the most costly power quality variation to the consumer. The “cost” of poor power quality depends upon many factors but generally vary from 50 to 400$ per kVA per device year. Numerous mitigation methods have been proposed, e.g., UPSs, ferroresonant transformers, static transfer switches, transformers with electronic tap-changers, and static voltage compensators. Each apparatus presents it´s own set of advantages and disadvantages, commands a different price and entails different operating costs. These technologies are often compared simply on the basis of purchase price alone. This paper present a method of comparing various equipment options by comparing the total owning cost. The total owning cost is found by combining the first cost of the equipment, with the present worth of the operating cost, and addition cost incurred due to limitations of the device. The ratings addressed in this paper are from 20 kVA and 400 kVA
Keywords :
costing; potential transformers; power supply quality; power system economics; power transformers; static VAr compensators; switchgear; uninterruptible power supplies; 20 to 400 kVA; UPS; electric utility industry; electronic tap-changers; ferroresonant transformers; mitigation methods; momentary interruptions costs reduction; motor-generator set; operating costs; power quality; power quality variation; static VAr compensator; static transfer switches; static voltage compensators; total owning cost; transformers; voltage sags effect reduction; Costs; Electrical equipment industry; Ferroresonance; Modems; Power conditioning; Power quality; Surge protection; Switches; Transformers; Voltage;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Harmonics and Quality of Power, 2000. Proceedings. Ninth International Conference on
Conference_Location :
Orlando, FL
Print_ISBN :
0-7803-6499-6
Type :
conf
DOI :
10.1109/ICHQP.2000.897713
Filename :
897713
Link To Document :
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