Title: Power factor auto-adjusting device
Application Number: 200610076585 Application Date: 2006.05.08
Publication Number: 1987712 Publication Date: 2007.06.27
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: G05F1/70;H02J3/18
Applicant(s) Name: Mitsubishi Electric Corp. Address:
Inventor(s) Name: Hisashi Yuji;Fujihara Shinjin
Attorney & Agent: heli bei zhangtian shu
Abstract:
    The present invention provided a power factor automatic reulator apparatus, which may shut off the power factor adjust capacitor without manual operation in case of assuming that the apparatus is abnormal, or display the predicting power factor in some control circumstance before shut off the power factor adjust capacitor by manual operation. The predicting power factor arithmetic device operates the shut off predicting power factor, in case of the shut off object capacitor in a plurality of capacitors for power factor automatic adjusting is shut off; the fictitious control predicting power factor in the status of fictitious switch on and off; the hand off predicting power factor in the case of shuting off the hand off object capacitor; or fictitious capacity prediction power factor in the case of setting a plurality of fictitious capacitors. In addition, the shut off predicting power factor, the fictitious control predicting power factor, the hand off predicting power factor or the fictitious capacity prediction power factor are displayed in the predicting value display apparatus.
Time: 5