Systems and Methods for Revenue Meter Testing
AssigneeSchweitzer Engineering Laboratories, Inc.
InventorsEdmund A. Schweitzer, Jean M. Leon Eternod, David E. Whitehead, Julian M. Alzate
Life of this patent
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Abstract
Continuous monitoring of an electric power system during testing of a primary electric power meter is described herein. Electric power system signals or test signals may be selectively supplied to the primary electric power meter. Electric power system signals may be supplied to a secondary meter while a test signal is applied to the primary electric power meter. The secondary meter may record and/or transmit monitoring functions and communicate the results of the monitoring functions to the primary electric power meter while the test signals are supplied to the primary electric power meter.
Claims23
A system for testing a primary meter, comprising:
- a first test switch in electrical communication with an electric power system to selectively switch electrical signals from the electric power system to a primary meter connection during non-test operations, and test signals from test signal connections to the primary meter connection during test operations;
- a primary meter connected to the primary meter connection to capture energy data of the electric power system during non-test operations;
- and
- a secondary meter configured to be connected to the electrical signals from the electric power system during test operations to capture energy data of the electric power system during test operations,
- wherein the secondary meter is configured to communicate captured energy data of the electric power system to the primary meter during test operations.
A method for testing a primary electric power meter, comprising:
- monitoring an electric power system using a primary electric power meter device during a first time period;
- storing energy data captured by the primary electric power meter during the first, pre-testing time period in a data store;
- connecting a secondary electric power meter to the electric power system;
- operably disconnecting the primary electric power meter from the electric power system during a second, testing time period for testing of the primary electric power meter;
- monitoring the electric power system using the secondary electric power meter device during the second, testing time period;
- storing energy data captured by the secondary electric power meter during the second, testing time period in the data store;
- operably reconnecting the primary electric power meter to the electric power system during a third, post-testing time period;
- monitoring the electric power system using the operably reconnected primary electric power meter during the third, post-testing time period;
- and
- storing energy data captured by the primary electric power meter during the third, post-testing time period in the data store,
- such that the data store includes captured energy data during each of the time periods, including the second, testing time period when the primary electric power meter was operably disconnected from the electric power system.
A system for testing a primary monitoring device, comprising:
- a first test switch in electrical communication with an electric power system to selectively switch electrical signals from the electric power system to a primary device connection during non-test operations, and test signals from test signal connections to the primary device connection during test operations;
- a primary monitoring device connected to the primary device connection to capture energy data of the electric power system during non-test operations;
- and
- a secondary monitoring device configured to be connected to the electrical signals from the electric power system during test operations to capture energy data of the electric power system during test operations,
- wherein the secondary monitoring device is configured to communicate captured energy data of the electric power system to the primary monitoring device during test operations.
Dependencies are inferred from the claim text.