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Use of capacitors to regulate the voltage in the networkSeminar paper Power Distribution and Industrial SystemsMentor:Student:Prof. dr. Grega Bizjak, univ. dipl. inž. el.Gentrit Rexha
2Ljubljana, April,2018Table of ContentsTable of Figures.............................................................................................................................................31Power System.......................................................................................................................................42Production and Consumers of Reactive Power....................................................................................52.1Production of Reactive Power......................................................................................................62.1.1Synchronous Machines.........................................................................................................62.1.2Static compensators –Capacitors.........................................................................................72.2Consumers of Reactive Power......................................................................................................82.2.1Asynchronous Motor............................................................................................................92.2.2Transformer..........................................................................................................................92.3Power Lines.................................................................................................................................103Voltage drop........................................................................................................................................113.1Calculation of Voltage Drop on a Line.........................................................................................123.1.1Ferranti effect.....................................................................................................................143.1.2Tab Transformers for voltage regulation............................................................................153.2Power Factor correction.............................................................................................................163.2.1Concept of Leading and Lagging Power Factors.................................................................174Capacitors in Power Systems..............................................................................................................184.1Line Compensation.....................................................................................................................194.2Serial Capacitors..........................................................................................................................204.2.1Overcompensation..............................................................................................................234.3Shunt Capacitors.........................................................................................................................254.3.1Capacitor installation types................................................................................................274.4Power factor correction..............................................................................................................305Questions............................................................................................................................................326Homework task...................................................................................................................................327Conclusion...........................................................................................................................................358References..........................................................................................................................................35