Method and apparatus for monitoring power transmission

Abstract

An apparatus for measurement of power in an electric power transmission line is disclosed. The apparatus comprises a magnetic field sensor for measuring the magnetic field at the electric power transmission line and transmitting magnetic field data to a processor. The magnetic field sensor is arranged at a minimum threshold distance from the electric power transmission line. The apparatus also has a voltage sensor arranged distally from the magnetic field sensor for transmitting voltage waveform data to the processor and a transfer function calculator for calculating the relationship between the transmitted voltage waveform data at the voltage sensor and transmission line voltage waveform data.

What is claimed is: 
     
         1 . An apparatus for measurement of power in an electric power transmission line comprising:
 a first electromagnetic sensor for measuring the electromagnetic field at the electric power transmission line and transmitting electromagnetic data to a processor, wherein the first electromagnetic sensor is arranged proximate to but at a distance from the electric power transmission line;   a second electromagnetic sensor arranged distally from the first electromagnetic sensor for transmitting second electromagnetic data to the processor;   a clock; and   a transfer function calculator for calculating the relationship between the first electromagnetic data and the second electromagnetic data.