Chapter 8

Impact of Poor Power Quality on Reliability, Relaying and Security

Abstract

Addresses the impact of poor power quality on reliability, relaying, and security as well as impacts of harmonics and inter-harmonics affecting the operation of overcurrent and under-frequency relays, which has not been published in any textbook. It discusses reliability indices, degradation of reliability and security, electromagnetic field (EMF), corona of transmission lines, load sharing, droop characteristics, cogeneration, and frequency/voltage control which are very important and complicated if renewables operate within a distribution system. Maximum error and uncertainty analyses are applied to the direct-loss measurement of three-phase transformers ...

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