Calibration - Power and EnergyWe offer calibration of power and energy instruments to assure their metrological status. We calibration active, reactive and apparent power and energy both for one-phase and three-phase applications, for three-wire or four-wire connections and for all power factors. We also calibrate AC voltage, current at sinusoidal and non-sinusoidal conditions.
If you calibrate your instruments at SP you will get a high quality of your own measurements and can minimise e.g. losses due to measurement errors. Traceable calibration is an important tool for quality assurance and using SP for an ongoing calibration scheme will lay the best foundation to good measurement quality.
Different types of reference meters
SP realize the power and energy quantities by simultaneous measurement of voltage and current . We use different types of reference meters depending on the application, one-phase or three-phase sinusoidal or non-sinusoidal. We mostly calibrate in the frequency range 50 to 60 Hz but are not limited to that.
For higher voltages and current we use voltage and current transformers. At SP there are calibration resources for up to 10 kA and 400/Ö3 kV. SP also calibrate measuring-bridges and burden of instrument transformer.