October 16, 2009

In 2005, Siemens Drive Technologies introduced the first large inverter using shunts for phase current measuring and brought it into series production. It wasn’t until recently that the power output was extended to 132kW with the new SINAMICS G120 series. Back then, the joint development between Siemens, Semikron and abellenhütte laid the foundations for being able to measure currents of up to 800A today. This article looks back at past events and takes a glimpse into the future: how was this technological change successful and what possibilities do future developments have to offer?