Analysis of Functional Characteristics of Low Voltage Power Line Carrier Meter Reading System
The first part of the current local energy measurement status 1.1 current energy measurement status a) Each power company is still mainly using mechanical energy meters and low-cost electronic meters for energy measurement, the accuracy level is mostly 2 b) due to electricity theft The distribution of phenomena and grid lines has a high line loss rate, and some individual areas are estimated to be above 20%. Because mechanical energy meters do not accurately calculate line losses, almost all data is "estimated".
c) Because there is no monitoring between the master and the minute, it is difficult to find and locate the line loss location.
d) The traditional post-paid system implemented throughout the country makes recycling tax more difficult.
e) Manual meter reading leads to frequent errors and waste of time and resources. And because it is not at the same time, it is difficult to perform accurate post-electric energy data analysis and line loss analysis.
Urgent problem currently 1.2 a) improve the accuracy of the meter rating b) reducing line losses and losses position location line c) recovering electricity timely and accurate d) reducing the cost of meter reading second portion <br> power line carrier automatic meter reading system Introduction 2.1 System function description a) In order to ensure timely recovery of electricity charges, the power company can remotely power off the arrears users at the main station. b) Use high-precision all-electronic energy meters c) Use power line carrier remote communication technology for users The electrical condition is monitored to prevent the user from stealing electricity.
d) Accurately locate the line loss location by analyzing the data from the summary and sub-tables
2.2 System Schematic <br> As shown below:
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