Stand-by power test software

Yokogawa has released a power measurement software package for its range of precision power analysers to provide a solution for the testing of stand-by power in accordance with the latest IEC62301 Ed 2.0 (international) and EN50564:2011 (European) standards.

The software, designed for use with the Yokogawa WT210, WT500, WT1800 and WT3000 power analysers, is targeted at manufacturers of domestic electrical appliances and related equipment, and compliance testing laboratories that need accurate measurements to ensure that these products operate at optimum energy efficiency with minimum stand-by power consumption.

Functions provided by the Yokogawa stand-by power measurement software include communications between the host PC and the relevant Yokogawa instrument, measurement of power data as defined in the standards, report preparation and production, and saving to the appropriate storage medium.

Electrical parameters measured include total harmonic distortion, crest factor, voltage, frequency, power variation and accumulated energy.  In addition, although they are not required by the standard, apparent power and power factor are also measured as reference values.

The software uses both the sampling method and the average reading method defined in the standard, and provides a measurement time check.  An ‘auto’ measurement mode checks data stability every ten seconds according to the algorithms defined in IEC62301 and can automatically end the test once stability and the test conditions have been met.  A text entry function allows information other than the measured values to be entered for incorporation in a report.  The report is generated as a PDF file and the measurements are also available in CSV format.