The Function of Three-Phase Power Quality Tester

Monitoring of power system transmission and distribution links

In the operation and maintenance of power plants, substations, and transmission lines, three-phase power quality testers are used to monitor core parameters such as three-phase voltage, current imbalance, harmonic content, power factor, and frequency deviation of the power grid in real time. The power generation side can detect whether the power quality of the generator set when connected to the grid meets the grid connection standards, avoiding the impact of unstable unit operation on the power grid; On the substation and transmission side, problems such as line losses, voltage fluctuations, and flicker can be investigated to promptly identify potential power quality hazards caused by line aging and uneven loads, ensuring the overall stable operation of the power grid.

Maintenance and troubleshooting of electrical equipment in industrial enterprises

Suitable for industrial scenarios with high-power three-phase equipment (such as frequency converters, motors, electric arc furnaces) in metallurgy, chemical, mining, manufacturing, and other industries. This type of equipment is prone to harmonic pollution, three-phase imbalance, and other issues during operation, leading to equipment heating, reduced efficiency, and even malfunctions. The tester can accurately detect the location and harmonic content of harmonic sources, evaluate the impact of equipment on the power grid, and assess the adverse effects of the power grid on equipment; When the equipment experiences abnormal shutdown or abnormal increase in energy consumption, the root cause of the problem can be identified through testing data, guiding the enterprise to configure the filtering device or adjust the load.

Stability testing of power supply for commercial buildings and public facilities

Used in places with high requirements for power supply reliability, such as shopping malls, hospitals, data centers, and rail transit stations. The servers in data centers and precision medical equipment in hospitals are extremely sensitive to voltage fluctuations and harmonic interference. Testers can monitor the power quality indicators of the power supply system to ensure that the equipment is not affected by voltage dips, surges, interruptions, and other issues; The three-phase power system and lighting system in places such as rail transit and airports can optimize load distribution through testing, avoiding situations such as line overload and equipment damage caused by three-phase imbalance.

New energy grid connected power quality assessment

In new energy projects such as photovoltaic power plants, wind farms, and energy storage power plants, testers are used to detect power quality parameters at the grid connection interface. New energy power generation is greatly affected by natural conditions, resulting in fluctuations in output power. When connected to the grid, it can easily cause problems such as excessive harmonics and voltage fluctuations in the power grid. The testing instrument can verify whether the harmonic content, power factor, and voltage deviation of the grid connected current comply with national standards, providing data support for the grid connected acceptance and operation optimization of new energy power stations.

Development and effectiveness verification of power quality governance plan

For places with existing power quality problems, the tester can provide comprehensive data analysis reports, providing a basis for the selection and installation of treatment equipment such as filter reactors, active power filters (APF), and static var generators (SVG); After the governance equipment is put into operation, the power quality indicators can be tested again through a tester, and the data before and after governance can be compared to verify the effectiveness of the governance plan and ensure that all parameters meet the standard requirements.

In the field of scientific research and metrological calibration

In electric power research institutes and measurement and testing institutions, three-phase power quality testers can be used as standard testing equipment for theoretical research on power quality and performance testing of new power equipment; At the same time, it can be used in conjunction with standard sources to calibrate other energy monitoring instruments, ensuring that the measurement accuracy of various monitoring equipment meets metrological specifications.