Abstract: A smart current transformer for determining primary current or power consumption, by stepping down the primary current to a secondary current for subsequent measurement by a connected meter. The current transformer is provided with a connected non-volatile memory for storing calibration data (and optionally identification data) regarding that particular current transformer. The calibration data can include the gain error and/or phase delay for the current transformer, as determined from prior calibration testing of the current transformer. The calibration data may be communicated to or otherwise determined by the meter, and used to calibrate the measurement of the secondary current, in order to determine the primary current or power consumption. Also disclosed is a system and method utilizing such a smart current transformer.

Abstract: A smart current transformer for determining primary current or power consumption, by stepping down the primary current to a secondary current for subsequent measurement by a connected meter. The current transformer is provided with a connected non-volatile memory for storing calibration data (and optionally identification data) regarding that particular current transformer. The calibration data can include the gain error and/or phase delay for the current transformer, as determined from prior calibration testing of the current transformer. The calibration data may be communicated to or otherwise determined by the meter, and used to calibrate the measurement of the secondary current, in order to determine the primary current or power consumption. Also disclosed is a system and method utilizing such a smart current transformer.

Abstract: The mount allows an antenna to be fitted to an inaccessible side of a panel from an accessible side, through a knockout. An antenna and cable are first fitted to the mount. The mount has clips that can be squeezed inwards so that it can be inserted into the knockout, and then released so that they retain the mount from the far side of the panel. Stops on the mount prevent it from being inserted too far. The tabs may be squeezed with finger pressure only so that the mount can be fitted in restricted locations where access is difficult, such as in an electrical breaker box. The mount can easily be removed by squeezing the tabs.