AUTOMATED CALIBRATION OF ELECTRONIC ENERGY METER USING LabVIEW

Abstract

Electronic energy meter for the measurement of energy by the electric utility and the consumer has been accepted for the accurate measurement of energy consumed. The accuracy of the reading of energy meter is necessarily to be known as any mismatch in reading will start putting burden on the pocket of consumer or utility. Hence these electronic energy meters, which has replaced conventional energy meter, need to be tested and calibrated. Every year crores of electronic energy meter are manufactured to meet the demands. Manual testing and calibration of such a large number of energy meters is not a feasible solution. So the need of automatic calibration is required. In the present study, the graphical programming of LabVIEW software has been utilized to develop the virtual energy meter which acts as a standard instrument for the calibration purpose. The reading of this standard instrument is compared with the reading of test energy meter. In this way automatic calibration is performed. Virtual instrumentation saves the extra cost, time and energy that are incurred while setting up traditional instrumentation systems. It is a latest form of modern measurement/monitoring technology where all types of measurements are done on front panels created on PC screen.