Installation
Emplacement de surveillance : UPS for a desktop PCs sold in retail stores (1-la phase 2 fils, 100En)
Problème & Analyse
Most low cost UPS used for general purposes output a square wave. Cependant, most people assume that a sine wave is output. Here is a sample waveform output by a UPS.
- Low cost inverter type
- Commercial-type without a compensation function for the voltage distortion, etc.
Note that the voltage swell or dip occurs in switching if the UPS does not compensate for the period.
Source : Guide pour la mesure de qualité de l'énergie, HIOKI E.E. Corporation


