Monitoring and diagnosis

Monitoring of facilities and electrical grids is an important component in the changing grid structure on the way to the SMARTGRIDS of the future. It pursues different objectives

• Reduction of maintenance and repair
• Increase of reliability
• Better utilization of networks
• Longer service life of components

Compared to pure measuring systems, monitoring systems are able to evaluate the condition of a plant or network and, if necessary, trigger appropriate measures automatically.

The diagnosis of insulating materials is used for quality assurance during production and fault prevention during the operation of a plant. A typical diagnostic method for off-line and on-line applications is partial discharge analysis.

The AHT department is conducting research in various projects on the subject of monitoring and diagnosis:

• Monitoring of disconnectors and circuit breakers (cooperation with AREVA-Kassel 2004-2008).
• Real-Time Identification and Monitoring of the Voltage Stability Margin in Electric Power Transmission Systems Using Synchronized Phasor Measurements (Diss. Y. Nguegan Tchokonte, 2009 in Co-operation with Energinet DK)
• Diagnosis of Electric Traction Motors Using Partial Discharge Measurement Technique Under Pulsed Voltage Stress (Ph.D. Dr.-Ing. Amir Berbic, 2014).
• Satellite navigation receivers and systems for autonomous mobile applications.
• Sensor technology for automated monitoring and diagnosis of high-voltage overhead lines with aerial platforms (UAVs)