A utility meter including an electronic module to calculate predetermined parameters related to electric utility line and load conditions. Signals related to utility line voltage and load conditions are scaled and sampled to generated a data base which is utilized by a digital processor to calculate the parameters discussed above. Calibration processes controlled by the processor corrects for errors related to the sensors used to sense line voltage and load conditions as well as drift in the analog portions of the electronic module.
申请公布号
US5006790(A)
申请公布日期
1991.04.09
申请号
US19870109776
申请日期
1987.10.19
申请人
APPALACHIAN TECHNOLOGIES CORPORATION
发明人
BEVERLY, II, WILLIAM C.;DALTON, MICHAEL B.;GADDIS, DAVID Q.