ANALYSIS OF THE CHARACTERISTICS OF THE ELECTROMAGNETIC RELAY TO VOLTAGE FALLS, PHASE ANGLE JUMPS, AND THE POINTS OF BEGINNING AND END OF FALLS
DOI:
https://doi.org/10.35546/kntu2078-4481.2025.1.1.38Keywords:
power quality, asymmetrical sources of distortion, voltage dips, distortion of the quality of electrical energy, power consumption modesAbstract
The problem of ensuring the quality of electricity is becoming increasingly relevant with the introduction of various renewable energy sources, powerful nonlinear consumers and decentralization of electricity supply systems. These changes complicate the task of ensuring a stable electricity supply, which leads to significant losses from deterioration in the quality of electricity. Against the background of changes in the economic mechanism of the energy sector, the problem of reducing electricity losses in electricity networks remains relevant, becoming an important task for ensuring the financial stability of energy supply organizations. The level of electricity losses in electricity networks is a key indicator of the efficiency of their activities and the efficiency of electricity metering systems. This indicator indicates problems that require urgent solutions in the field of development, reconstruction and technical renewal of electricity networks, improvement of methods of their operation and management, increasing the accuracy of electricity metering and the efficiency of collecting funds for consumed electricity. The quality of electricity is crucial for the uninterrupted operation of modern electrical systems and electronics. The growth of electrical load and the spread of electronic devices lead to an increase in voltage and current distortions, which can cause serious problems in the operation of equipment and increase the risk of emergency situations. To ensure the reliability and stability of power supply, it is necessary to develop and improve methods and means of determining the presence and correction of power quality distortions. Analysis and classification of voltage dips is necessary for identifying failures and responding to them in a timely manner. The development of monitoring systems, in particular based on spatial vector models, allows for constant monitoring of electricity parameters and timely response to any anomalies.
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