In 2014 we announced the expansion of our high power short-circuit laboratory. The main goal for the expansion is to test high power transformers for short-circuit performance up to the 800 kV class. The second reason is to add test slots to be more flexible towards our customers, resulting from the current dynamic market. The investment for the expansion is EUR 70 million. After years of designing and building we started commissioning in 2016. During the 2017 winter maintenance stop we completed the commissioning and the integration with the existing laboratory and are proud to announce that all systems are now up and running. We successfully conducted short-circuit tests on a few 800 kV power transformers using the combined power of all 6 short-circuit generators. Our customers are welcome to visit our extended facilities to experience the latest technology in short-circuit laboratory testing and see how we can be of service to you.