Effect of Neodymium Magnet Field on Operation of Inductive Watt-Hour Meters

Abstract:

To the illegal stealing problem using strong magnets, the paper studied on the effect of neodymium magnet field on operation of single phase watt-hour meters. The experimental results show that the magnetic field of neodymium magnet increased braking torque of inductive watt-hour meters and caused the negative error, increased starting current， the instrument internal permanent magnet was magnetized, and anomalies of the permanent magnet degaussing can effectively detect electricity theft.

• Periodical: Applied Mechanics and Materials (Volume 197)
• Pages: 820-824
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.197.820
• Online since: September 2012
• Authors: Yan Lu, Jie Jia Hu
• Keywords: Degaussing, Error, Neodymium Magnet, Single Phase Watt-Hour Meters, Starting Current

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