Apparatus and methods for field testing an electrical panel meter system

An electrical panel meter system configured to be field tested for metering accuracy, the electrical panel meter system comprising:

• a plurality of branch circuit connectors, each one of the plurality of branch circuit connectors configured to be coupled to a respective branch circuit to provide electrical power thereto;
• a plurality of current sensors, each one of the plurality of current sensors coupled to a respective one of the plurality of branch circuit connectors;
• a plurality of meter modules, each one of the plurality of meter modules coupled to a respective one of the plurality of current sensors;
• a controller coupled to the plurality of meter modules;
• a test conductor coupled sequentially to each one of the plurality of current sensors, the test conductor having no electrical connection to the plurality of branch circuit connectors;
• a first terminal coupled to one end of the test conductor;
• and
• a second terminal coupled to a second opposite end of the test conductor.

A method of field testing an electrical panel meter system for metering accuracy, the method comprising:

• coupling a plurality of conductors from a field tester to the electrical panel meter system;
• injecting an electrical signal from the field tester into the electrical panel meter system;
• measuring at the field tester a parameter of the electrical signal;
• receiving an electrical reading from each of at least some of a plurality of meter modules of the electrical panel meter system;
• comparing each received electrical reading to the measured parameter;
• and
• indicating a pass/fail result for each of the at least some of the plurality of meter modules.