The XFM Program reads standard
COMTRADE files and provides advanced graphical displays and analysis
Manipulation via mouse or keyboard, including zooming, panning, and
dual cursors with dynamic computational displays (e.g. RMS values,
average values, frequency, phase, total harmonic distortion, etc.)
Waveform Calculator. generates additional waveforms defined
as mathematical operations on any combination of waveforms included
in the COMTRADE file. Examples are: RMS values, harmonic magnitude
and phase, positive, negative and zero sequence components, Karrenbauer
Harmonic analysis of any waveform included in the COMTRADE file.
Displays phasors of selected waveforms graphically. Either phase quantities
or symmetric components can be displayed.
The Fault locating algorithm is based on an advanced physical model
of the faulted circuit, which takes into account phase and ground
conductor types, sizes, and physical arrangement. Single-end, double-end,
and double-end-synchronized measurement data are supported.
Monitoring Functions. Can
be setup for continuous monitoring of a system by interfacing it with
data acquisition hardware. Several hardware vendors are supported.
Custom design interfaces with customer hardware can be provided. Unique
features are: (a) Explicit modeling of the instrumentation channels
and data acquisition units, a variety of triggering functions for
disturbance capturing (disturbance data are stored in standard COMTRADE
format). (c) Monitoring of a variety of complex system conditions.