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Power System Operation and Control by G. Sreenivasan, S. Sivanagaraju

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10

Voltage Control

OBJECTIVES

After reading this chapter, you should be able to:

  • obtain an overview of voltage control

  • discuss the parameters or equipments causing reactive power

  • understand the methods of voltage control and

  • calculate the rating of synchronous phase modifier

10.1 INTRODUCTION

A power system must be designed in such a way so as to maintain the voltage variations at the consumer terminals within specified limits. In practice, all the equipments on the power system are designed to operate satisfactorily at the rated voltages or within specified limits, at most ± 6% at the consumer terminals. The main reason for the variation in voltage at the consumer terminals is the variation in load on the supply power system. In case load ...

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