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The main purpose of this work is to present a performance analysis of numerical distance protection applied in high voltage transmission lines, more specifically in the 500 kV transmission lines of CEMIG (Energy Company of Minas Gerais - Brazilian Energy Utility) between the Vespasiano 2 - Neves 1 (short line - 23.9 km) and Vespasiano 2 - Mesquita (long line - 148.6 km) substation. The need for energy...
Fixed Series Compensation (FSC) employs capacitors to compensate the inductive reactance of transmission lines, being a highly effective and economical means of improving power transfer. A Fixed Series Compensation Monitoring System has as objective the knowledge of the actual physical state of this FACTS (Flexible AC Transmission Systems) system and diagnose the evolution of components damage, so...
The use of fixed series compensation is well known because it provides a lot of benefits to improve the power transfer capacity in transmission lines, as well as power system stability. However, the presence of capacitors in series applied on power transmission system can result in appearance of the subsynchronous resonance phenomena. This technical paper will present the subsynchronous resonance...
The power demands of Brazilian national industries need an economical solution to increase power transmission capacity of existing transmission lines. Due to environmental and economical difficulties for construction of new power transmission lines, the use of fixed series compensation (FSC) has turned into a common practice of power transmission companies in Brazil. The FSC is presented as the best...
The protection of series compensated lines is considered to be one of the most difficult tasks for engineers. The series compensation affects the impedance measurement such that special considerations are necessary in the application of distance protection. In order to evaluate the performance of distance protective relays that will be applied in 500 kV Brazilian transmission system, real time closed-loop...
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