Protection Technologies of Ultra-High-Voltage AC Transmission Systems

Chapter 1 Introduction to UHV AC transmission system1.1 Development of UHV AC transmission system1.2 Construction and development trend of UHV AC transmission system1.3 Key technologies of UHV AC transmission systemChapter 2 Electromagnetic fields of UHV AC transmission line2.1 Structural parameters of UHV transmission lines2.2 Electric field intensity of transmission line 2.3 Frequency electromagnetic field of UHV AC transmission line2.4 High voltage transmission lines frequency electromagnetic field and radio interference limitsChapter 3 Parameters of UHV AC Transmission Line3.1 Calculation of AC transmission line’s distributed capacitance, inductance and resistance 3.2 Optimization of AC transmission line distributed parameters3.3 Pole and tower type of UHV AC Transmission LineChapter 4 UHV transmission line protection configuration scheme4.1 Requirements and principles of UHV transmission line protection configuration scheme4.2 UHV transmission lines main protection, backup protection optionChapter 5 Traditional protection principles and programs of UHV AC transmission lines5.1 Traditional main protection of UHV AC Transmission Lines5.2 The action principle and operation behaviors of directional zero phase sequence current protection5.3 Automatic reclosing configuration5.4 Evaluation of the protectionChapter 6 Distributed parameter characteristics of UHV transmission line6.1 Distributed parameter circuit6.2 Long-term equation of transmission Line6.3 Bergeron model of transmission Line6.4 frequency-dependent line model of transmission LineChapter 7 Bergeron model based segregated current differential protection and its application7.1 Applicability of conventional current differential protection in UHV transmission lines7.2 Differential current expressions of Bergeron model based segregated current differential protection7.3 Action criterion of Bergeron model based segregated current differential protection7.4 Current differential protection of transmission line with series reactor compensation7.5 Current differential protection with the middle line shunt reactors compensationChapter 8 Distance protection of UHV long transmission line8.1 Applicability of conventional distance protection in UHV AC Transmission Line8.2 Measured resistance of the three-phase UHV AC long line fault8.3 Phase distance protection and grounded distance protection of UHV long transmission lineChapter 9 Overvoltage and automatic reclosing of UHV AC transmission line9.1 Overvoltage overview9.2 Power frequency voltage rise and overvoltage of automatic reclosing9.3 Overvoltage characteristics and the type of operation of UHV AC transmission line9.4 Secondary arc current and recovery voltage of single-phase reclosing9.5 Principles and applications of single-phase adaptive reclosingChapter 10 Special problems of protections of UHV AC double-circuit lines on same tower10.1 Double-circuit lines on same tower’s degree of unbalance and its model10.2 Analysis of the unbalanced current of double-circuit lines on same tower10.3 The influence of circulating imbalance of UHV double-circuit lines on same tower to directional pilot protection and its improvementChapter 11 Protections of UHV transformer and shunt reactors11.1 Structural characteristics of UHV transformer11.2 UHV transformer’s protection configuration11.3 Distributed Protection Scheme of UHV transformer11.4 Protection of UHV Shunt Reactors11.5 Quick impedance protection of large capacity transformerChapter 12 Preliminary Study on protection of UHV half-wavelength transmission line12.1 UHV half wavelength transmission line and its characteristics12.2 UHV half-wavelength transmission line protection