Ali Mohseni and Lin Cheng
Keywords: Capacitor voltage transformer, parameters, power quality, performance
Abstract: With the advancement of technology and importance of using devices with the ability to perform complex tasks like super computers and new household appliances, Performance of these devices has had a negative impact on the power network, and lowered power quality in the system. So these days the issue of improving power quality gets more and more attention. One of the issues considered in the further development of new devices is the problem of harmonics above 50 Hz. Today, Capacitor Voltage Transformers (CVTs) are widely used to measure harmonics and transients voltages. Therefore the issue of efficiency and stability of this device against the changes of its parameters as well as changes and disturbances in the network is of great importance. In this paper, the CVT system is simulated, and then the role of changes of device and network parameters in stability and performance of the CVT are examined. Results showed that CVT is sensitive only to the changes of capacitors in low frequency response
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