Software

Software
10
QuickCMC
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Quick and easy PC controlled manual testing
• Simultaneous control of all available test signals (voltage and current outputs) of the CMC
test set in magnitude, phase, and frequency (max. 22 channels possible 1 )
• Steady state, step or ramp function for all quantities
• Fault Calculator providing different operation modes
• Timing measurements
• Vector view and impedance plane
QuickCMC provides an easy and intuitive user interface, while also offering powerful functions
for performing PC controlled manual tests for all kinds of protection relays, measurement
transducers and other equipment.
Output quantities can either be entered in the classical way as voltages and currents, or by
using input modes for absolute or relative impedance values, powers or symmetrical components.
Regardless of which input mode is chosen, Fault Calculator transfers the values into
voltages and currents to be generated by a CMC and/or an amplifier unit.
Output functions
QuickCMC provides simple control of test signals. Output values may be defined numerically,
or by dynamically positioning the elements in the vector diagram or the interactive impedance
plane with the mouse.
The module includes the Fault Calculator which automatically converts the entered values
to determine the correct output quantities (voltage, current and phase angle) for single-,
two- and three-phase faults, power flow, or symmetrical components. The residual voltage
and current is also automatically calculated and generated. According to the selected mode,
the values are displayed graphically in the vector or impedance view, as well as numerically
in a table.
Channels where no fault model is assigned can be set without any restriction (unbalanced
signal generation, variable frequency for each individual channel, etc.). The Unit Manager
function allows for easy toggling between the handling of values in primary/secondary,
absolute/relative, or seconds/cycles.
Step or Ramp Mode
Step or Ramp Mode operation is provided for finding limiting values, such as pick-up and
drop-off, or starting of a relay. In Step Mode, the selected quantities (currents, voltages,
impedances, power, etc.) are increased or decreased by a specified value with a mouse click.
In Ramp Mode, the defined step is repeated until an input toggles (e.g. when the relay trips).
The pulse ramping functionality allows easy testing of protection elements with overlapping
characteristics (e.g. testing the I >> threshold).
Input/measuring functions
10 binary inputs can be used to monitor dry or wet contacts and make corresponding time
measurements. The time measurement may alternatively trigger on the external interruption
of the generated currents, allowing direct assessment of CB contacts. The output values of a
transducer connected to the analog DC inputs can also be displayed.
Reporting
Results of tests with QuickCMC can be stored for later use. Similar to all other testing modules
in the OMICRON Test Universe software, the report style and content can be customized. In
addition, the QuickCMC reporting feature provides a “notepad” function, so that individual
comments may be added to the report.
1 If equipped with LLO-2 option