永久磁铁对静止式电能表计量性能的试验研究

摘要

To suppress the use of all kinds of magnetic interference electric energy meter for stealing electricity, this paper analyzes the permanent magnet character captured from the suspect in the lab conditions and the interferential test is carried on static electricity meters which are used widely with these magnets. Experiments show that the permanent magnet for electric energy metering performance have a great effect. On the basis of experiments, the electric energy meter is developed, which can detect a constant magnetic field and an alternating magnetic field interference and has the real time alarm function. The meter has ran for more than a year to get great benefits.%为了防止利用各种磁铁干扰电能表进行窃电,本文在实验室环境条件下,对现场缴获的永久磁铁进行了详细分析,并利用这些磁铁对目前广泛使用的静止式电能表进行干扰试验,试验表明永久磁铁对静止式电能表计量性能有很大影响,在此基础上研制了具有检测恒定磁场和交变磁场干扰,具有实时报警功能的电能表,该表运行一年来取得了极大的效益.