All the equipments connected to the power utility system is designed to be used within the voltage range. Voltage drop exist in each part of the system. Consumers who are electrically connected on the primary distribution feeder near to the substation will have maximum voltage levels compared to consumers who are located at the tail end or far end of the distribution (higher voltage drops attributes to the poor voltage levels).
But for satisfactory operation of the electrical equipment voltage levels to these equipment’s should be within the operational range. Therefore in order to provide supply voltage within prescribed limits some voltage correction or voltage control measures should be taken.
Some of the methods available to achieve voltage control at the distribution end of the power system are explained below:
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