• Patented technology
• Rugged steel enclosure protects against the elements
• Integrates with the TCC software for immediate “GO/NOGO” verification of time current curves

The ORTMASTER interface module is a compact, high accuracy current and time measurement device that monitors both the magnitude and time that current is applied to a recloser during a test. The module has proven accuracy and consistency, when used in conjunction with a recloser test set, especially on waveforms with moderate to severe current decay.

The ORTMASTER is designed to connect to the output of any recloser test set. A parallel port connects to a PC and the software program displays trip current, trip times, and reclose times for recloser operations. A precision 12 bit A/D converter reads the current flowing through the bus bar connection and stores the waveform in memory. A continuous readout of true rms current is indicated at all times, and accurate readings of time and current for each operation are displayed as they occur. After the test, the waveform of each shot can be analyzed by direct viewing or saved to disk for future reference. After a recloser completes all operations, the ORTMASTER module supplies the currrent magnitude and time data for analysis. The software controlled true rms computation always gives the correct current reading and properly reads waveforms with DC offset and distortion.