The primary application for PT/CT correction is to apply correction factors for ratio errors and phase angle errors to instrument transformers. PT/CT correction is done for each current and voltage input to the meter and only affects 1-second power meter data and values derived from it, such as energy or demand. No high-speed, harmonics or waveform values are affected by the correction.
See the ION Setup online help, available from www.schneider-electric.com, for instructions on how to configure PT/CT correction on your device.
See the ION Reference, available from www.schneider-electric.com, for detailed information about the Instr Xformer Correction (ITC) module and how it applies PT/ CT correction to your device.