click to enlarge
Quick and easy manual testing
- Simultaneous control of up to 16 generators (voltage/current outputs)
- 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 manual tests for all kinds of secondary devices. 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 generated by a CMC and/or amplifier.
click to enlarge
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 a 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.
click to enlarge
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, a step function test is carried out until an input toggles or the user stops the test. The pulse ramping functionality allows easy testing of protection elements with overlapping characteristics.
Input/measuring functions
10 binary inputs can be used to monitor dry or wet contacts and make corresponding time measurements. 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, 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.