Calibration of power quality analyzers

The Measuring Instruments Laboratory offers a calibration service for power quality meters and analyzers. The service is performed using test signals that take into account the guidelines of a number of standards: PN-EN 50160, PN-EN 62586, PN-EN 61000-4-30, PN-EN 61000-4-15, PN-EN 61000-4-7. We calibrate power quality analyzers from companies such as: A-Eberle, Fluke, Gossen Metrawatt, Sonel.

We perform the calibration service for power quality analyzers:

within the scope of accreditation - measurements include the following parameters: effective values of currents and voltages, active power P (cosφ=1), frequency;
outside the scope of accreditation:
- calibration of power quality analyzers covering the required parameters related to voltage and current; the service includes calibration of the following parameters: effective values of currents and voltages, voltage and current THD, higher harmonics and interharmonics of current and voltage, voltage asymmetry, flicker Pst and Plt, voltage dips and interruptions, active power P, reactive power Q, apparent power S, power factor cosφ and PF, voltage frequency fluctuations,
- calibration of power quality analyzers covering voltage-related parameters; the service includes calibration of the following parameters: effective values of voltages, voltage THD, higher harmonics and interharmonics of voltage, voltage asymmetry, flicker Pst and Plt, voltage dips and interruptions, voltage frequency fluctuations.

We calibrate power quality analyzers in the laboratory in Gliwice and directly at the customer's premises.

As part of the offered service, we provide calibration of power quality and power quality analyzers in the following ranges:

Name of physical quantity	Measurement range
Alternating voltage AC, f = 50 Hz	10 mV÷1000 V
Alternating current AC, f = 50 Hz	0,1 mA÷1000 A
Basic Signal Frequency	50 Hz
Współczynnik THD U	0÷130% for 100 V
THD I coefficient	0÷130% for 10 A
Higher voltage harmonics	up to 60 harmonics for 100 V UL-N
Higher current harmonics	up to 60 harmonics for 10 A
Higher interharmonic voltages	up to 60 harmonics for 100 V UL-N
Higher current interharmonics	up to 60 harmonics for 10 A
Voltage asymmetry	0÷15%
Active, reactive, apparent power	0÷25 A, 0÷300 V
Frequency fluctuations	40÷60 Hz
Power factor cosφ, PF	0÷1
Flicker indicator Pst, Plt	0,1÷20
Voltage dips and outages	0-100%, 0,01-999 s

We would like to point out that work is currently underway to extend the scope of PCA accreditation to include the calibration service of power quality meters with a larger number of parameters.

We will be happy to answer any questions.