Prepaid Metering System by using PLC and SCADA

There are certain losses which affect the economy of the power system. In India the percentage of power losses has been quite high. The most prominent forms of non-technical losses in India are electricity theft and non-payment of bills. This is great loss for government. It is estimated that electricity theft and nonpayment of bills cost in our country is in billions a year. The objective of this research work is present a design of Prepaid Metering System by using PLC (Programmable Logic Controller) and SCADA (Supervisory Control and Data Acquisition). In the proposed Automatic meter reading (AMR) system, the post paid energy meters are replaced by digital energy meters. All meters can be monitored online on centralized SCADA. As the whole proposed system is prepaid and the consumer has to pay before using the electricity. If the amount falls below certain minimum amount, then a message will be sent to the consumer on the mobile phone.This system not only reduces the labor cost but also increase meter reading accuracy and save hugs amount of time.