High speed multifunction testing and calibration of electronic e

Details High speed multifunction testing and calibration of electronic e High speed multifunction testing and calibration of electronic e

1995-11-30

2000-10-17

Karlsen, Ernest

Electricity: measuring and testing

Testing and calibrating electric meters

324142, G01R 3504, G01R 2106

Patent

active

06133720&

ABSTRACT:
High speed multifunction testing and calibration of electronic electricity meters comprises whole cycle synchronized testing. More specifically, start and end test commands defining a test interval synchronized to whole cycles of the pulsating a.c. potentials and currents are signaled by a meter under test (MUT) to a plurality of standard meters, during which multiple electrical quantities are accumulated by both the MUT and the standard meters. The MUT accumulated quantities and the accumulated quantities of the standard meters are communicated to the external test device for comparison. These comparisons may be used by the external test device to calculate coefficients for correcting or calibrating the MUT. The coefficients are transmitted to the MUT where they are incorporated into the algorithms for calculation of the desired electrical quantities.

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