Power factor controlling system
专利汇可以提供Power factor controlling system专利检索，专利查询，专利分析的服务。并且PURPOSE:To restrain always a load power factor within a targeted value to keep a monitor cycle time length within a desired range, by depending on the variance of the effective power consumption to set the monitor cycle time length. CONSTITUTION:A power-factor controller consists of a monitor cycle controlling part 1 and a load controlling part 2, and upper limit QU and lower limit QL of the power factor target, a monitor cycle time length INT corresponding to the variance of the effective power consumption, a preceding measured effective power Pi-1, and a current measured effective power Pi are stored in a magnetic disc 11. A power factor is calculated in a power calculation value getting circuit 12 on the basis of the value of a reactive power meter 22 of the controlling part 2, and this calculated value is compared with the targeted value from the disc 11 in a comparing circuit 13, and a breaker 24 is controlled by a phase advance capacitor controlling circuit 14 to open or close the capacitor when the calculated power factor is higher than the value QU or lower than the value QL. When the calculated power factor is within the targeted value, the value of an effective power meter 21 is transmitted to a monitor cycle time length setting circuit 15 through the circuit 12. In the circuit 15, values Pi-1 and Pi from the disc are compared with each other, and a short monitor cycle time length is set when the variance of effective power is large, and a long monitor cycle time length is set when this variance is small.，下面是Power factor controlling system专利的具体信息内容。
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| 电测仪表模拟培训装置 | 2020-05-27 | 201 |
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