Electricity Today T&D Magazine

The OTM-X is the only standalone recorder using the vibro-acoustic method and motor current testing to detect ONLINE your On-Load Tap Changer’s (OLTC) malfunctions.

Thanks to its technology, it can detect problems such as contact wear, arcing in diverter, arcing in selector, synchronism problem, drive mechanism problem, brake failure etc.

The OTM-X is a special machine, combining a powerful Zensol measurement instrument with a flexible and autonomous computer running the tests.

This combination allows the instrument to be continuously connected to the network. A remote user can thus access data and test plans from anywhere at any time.