Author： Ortiz Alfredo
Publisher： Taylor & Francis Ltd
ISSN： 1532-5016
Source： Electric Power Components and Systems, Vol.35, Iss.2, 2007-02, pp. : 221-237
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Abstract
Is it advisable to replace ferraris based meters with electronic meters? The permanence of the electromechanical meters currently in use is often justified on the grounds of their long working life and low price. However, it is well known that they are highly sensitive to external conditions and that many factors can lead to miscalibration. This work attempts to clarify some key points in order to answer the previous question. It reviews the operating principles of energy meters. The behavior of watt-hour meters under nonsinusoidal conditions is also studied. The disturbances considered were harmonics, unbalance and main frequency variations.
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