SYSTEM AND METHOD FOR MONITORING AN ELECTRICAL NETWORK

摘要

An energy monitoring system which in preferred embodiments employs at least one nodal junction receiving and creating data by analog to digital conversion from a plurality of local node sensors. Data accumulated by the nodal junction is used for analysis of wave patterns to detect anomalies in the local electrical network and/or loads connected to the local electrical network. Anomalies can be detected in various ways, including: comparison of data with historical data acquired from the local node sensors; comparison of data with known wave pattern profiles for similar loads; and comparison of data with data acquired from local node sensors at other locations. Thus, the accumulation of data in the system of the invention provides the ability to perform comparative analysis to a baseline or standard, and also the ability to perform comparative analysis at an enterprise level across different target locations.

主权项

1. An electric harmonic monitoring system for measuring a periodic waveform representing an aggregation of fundamental and harmonic components of at least one electrical load with at least two conductors, the system comprising:
at least one current sensor for detecting a level of current flowing in at least one of the load conductors comprising an inductor having at least one complete electrical turn in inductive communication with the load conductor, at least one nodal junction controller, the nodal junction controller configured to measure the level of current of each connected current sensor at a rate of at least one measurement per cycle, and transmitting the measurements via a network connection to at least one network server, and the at least one network server configured to receive, store and analyze at least one finite set of measurements from at least one nodal junction controller, having FFT algorithms for converting the list of measurements into a set of coefficients of a finite combination for sinusoids thus determining the fundamental and harmonic components of the received measurements, and having algorithms for detecting meaningful variations in the list of coefficients and the ability to notify personnel of such variations.