In Fall 2007, a southeastern United States utility improved a vital part of its power system by retrofitting two of Reinhausen's TAPCON® 250 automatic voltage regulating controllers with TC250-ME adapter panels in place of two pre-existing McGraw Edison controllers. One of many of the TAPCON® 250's retrofitting options, the TC250-ME adapter panel features a hinged door design that perfectly mounts to the McGraw Edison 550 BHS LTC controller chassis and provides standard Local/Remote, Auto/Manual, and (Raise)/Off/(Lower) switches along with testing terminals and a fuse block to replace the corresponding features of the old design.
Underperforming and causing reliability concerns, the previously used products were no longer able to automatically control the transformers. Therefore, the utility had to always operate one of its LTCs at this site in manual operation. Due to a perfect adaptation with Reinhausen's TC250-ME adapter panel, it took less than a day to remove the two twenty-seven year old McGraw Edison controllers and replace them with two TAPCON® 250 controllers. After the Reinhausen specialist left the site, both controllers were flawlessly operating automatically. While satisfying the current needs of the substation scheme, the TAPCON® 250's ability to add communications, digital paralleling, and analog position modules at a later time allowed the utility to get only what they presently needed as well as still plan for the future.