Calibrate Your Power Quality Analyzer with TUNKIA TA4300 Power Quality Calibrator

What is a Power Quality Analyzer

The power quality analyzer is a special portable product for detecting and analyzing the quality of the power grid. It can provide harmonic analysis and power quality analysis in power operation, and can collect and detect the power grid operation for a long time. It is also equipped with power quality data analysis software to perform various analyses on the measured data.

The power quality analyzer is mainly composed of five parts: measurement conversion module, analog-to-digital conversion module, data processing module, data management module and peripheral module. Among them, the measurement conversion module is composed of voltage transformer, current transformer and signal conditioning circuit.

Why Calibrate a Power Quality Analyzer

The main reasons why power quality analyzers need to be calibrated are to ensure measurement accuracy and data reliability, including the following:

1 Ensure measurement accuracy

Power quality analyzers are used to monitor key parameters such as harmonics, voltage fluctuations, and frequency deviations. Measurement errors may affect grid optimization and fault diagnosis. Therefore, regular calibration can correct problems such as sensor drift and analog/digital conversion errors to ensure data reliability.

2 Comply with standards and regulations

Power quality analysis usually involves industry standards (such as IEC 61000-4-30, IEEE 519). Calibration ensures that the instrument meets relevant regulatory requirements, which is especially important in power quality assessment, certification, or compliance testing.

3 Compensate for environmental and aging effects

Long-term use will cause electronic components to age, and environmental factors (such as temperature and humidity) may also affect measurement results. Calibration can identify and correct these errors and extend the life of the equipment.

4 Improve data comparability

When performing power quality analysis at different times, locations, or devices, calibrated instruments can provide consistent and comparable data to avoid misjudgments due to measurement errors.

5 Reduce misjudgments and economic losses

Inaccurate power quality measurements may lead to incorrect grid optimization, misjudgment of faults, and even affect corporate production and cause additional losses. Regular calibration helps reduce this risk.

How to calibrate a power quality analyzer

Basic principle: 

Source inspection meter

Calibration equipment:

TUNKIA TA4300 power quality calibrator - integrates multiple detection functions, can accurately output highly stable three-phase voltage/current, harmonics, AC power, AC power, etc. The product is class 0.05 specification, with high design integration, good stability and strong reliability.

Calibration steps:

1. Basic parameter calibration:

Voltage calibration: TA4300 outputs rated voltage (1V~528V) as a three-phase voltage standard source, and the analyzer measures and compares the error;

Current calibration: TA4300 outputs set current (0.2mA~22A) as a three-phase current standard source, and the analyzer measures and compares the error;

Frequency calibration: TA4300 sets different frequencies (45Hz~65Hz) as a three-phase standard source, and checks the measurement accuracy of the analyzer;

2. Power quality parameter calibration:

Harmonic calibration: TA4300 outputs specific harmonic content (2~99th, content and phase are adjustable), and the analyzer measures and compares the error;

Flicker calibration: TA4300 sets flicker output by changing parameters such as frequency (0.1~200Hz) and fluctuation (0~40%), and the analyzer records flicker (Pst, Plt) and compares it;

Temporary rise, sag and short-time interruption calibration: TA4300, as a transient pulse generator, realizes the sudden rise/sag control of the output level by adjusting the voltage variation range, variation start and end and duration, and simulates the voltage interruption according to the set duration during output to test the response speed and accuracy of the analyzer.

3. Data comparison and error calculation

Calculate whether the measurement error is within the allowable range. If the error exceeds the standard, software compensation or hardware adjustment is required.

Other functions

TA4300 power quality calibrator integrates multiple detection functions. In addition to calibrating power quality analyzers, it can also calibrate three-phase voltage/current meters, three-phase power meters, frequency meters, phase meters, power factor meters, and single/three-phase energy meters.

For more details, please click: product documentation, product introduction page.