tools

This bench is built to test MCCB instantaneous tripping (also known as Short Circuit or Magnetic tripping) as per IEC 60947-2 Cl 8.3.3 and custom based requirements. A speciality of the system is that it includes differently designed systems for two different current ranges (Smaller range for currents < 2000 A and higher range for currents >2000 A) thus ensuring equal reliability, accuracy and regulation for both low current and higher current MCCBs. Specially designed custom built jigs are able to accommodate different types of MCCBs enabling the user to test all kinds of miniature circuit breakers on a single test bench. In addition, the system can be made such that it covers the entire range of MCCBs for production floors producing all ratings of MCCB.

This is a hybrid bench to integrate MCCB over current tripping as well as temperature rise testing as per IEC 60947 and custom based requirements. In addition, temperature rise module helps monitor the temperature rise in various parts of the system in rated current as well as over-current mode. The system comes with user interface software configured in NI LabVIEW making testing of MCCBs complete where thermal curves with current as well as temperature rise can be plotted on a PC. The test jig is flexible such that different MCCBs can be tested and compared for their performance. The bench integrates temperature data logger system with k type Cr-Al temperature probes with both digital and ON-PC online display of temperatures..