System and method for inferring schematic relationships between load points and service transformers

摘要

A system and method for identifying which of several candidate service transformers is powering a specific service point an electrical distribution grid are disclosed. An audio-frequency electrical signal, the detection signal, is injected onto the power line at the service point via a meter socket or electrical outlet. The Transmitter for the detection signal may be a portable device or it may be incorporated into an electrical meter. The audible or mechanical resonance caused in the service transformer by the detection signal is detected and recorded using an accelerometer or directional microphone in a Receiver. A variety of methods for fixing the Receiver at or in proximity to the service transformers are disclosed in order to adapt to variations in the siting and housing of service transformers. A variety of mechanisms and methods for collecting detection events are disclosed.

主权项

1. A system for determining, in an electrical distribution grid, which of one or more candidate service transformers is supplying power to at least one load, as represented by a meter socket or an electrical outlet, the system comprising:
a. at least one on-grid transmitter configured to inject at least one detection signal when powered by the meter socket or the electrical outlet of the at least one load; b. at least one receiver configured to detect resonant mechanical vibrations or sound caused by the at least one detection signal in a candidate service transformer supplying power to the specific transmitter which is the source of the at least one detection signal; and c. a recording mechanism configured to record a pairing of the at least one load with a candidate service transformer of the one or more candidate service transformers.