Technische Universität München; Lehrstuhl für Hochspannungs- und Anlagentechnik, HSA

The chair has extensive test facilities for high voltages (AC voltage up to 1.2 MV, high voltage up to 3 MV) and high currents (AC currents up to 6000 A, DC currents up to 800 A) as well as test facilities for electrical material properties (dielectric constant, dielectric loss factor, tracking resistance, arc resistance, hydrophobicity resistance, electrical resistivity) and electrical connections (microamperemeter, laser profilometer, digital microscope with measuring function, salt fog chamber, heating ovens) For more information, please visit our website www.hsa.ei.tum.de.

Laboratories and facilities:

• High voltage hall (3.0 MV lightning impulse voltage, 1.2 MV AC voltage and 1.4 MV DC voltage)
• Laboratory E1 (500 kV DC voltage)
• Laboratory E2 (1 MV surge voltage)
• Laboratory E5 (500 kV AC voltage, metal-enclosed test facility)
• Shock current laboratory (160 kV 80 kWs)
• Practical laboratory (12 test rigs,each 100 kV AC, 140 kV DC, 140 kV surge voltage)

further instiute from energy research: - Institute for Automation Technology and Autonomous Systems  .

The chair's research focuses on fundamental questions of the properties and long-term behavior of high-voltage insulation with plastics, especially in outdoor applications, the insulating capacity of gases and solids in high-voltage equipment and systems, the long-term behavior of electrical connections under loads with high currents, and questions of electromagnetic compatibility in power engineering.

The Chair of High Voltage and Plant Engineering is concerned with the electrical loading of high-voltage equipment and deals with fundamental issues of insulation capacity and condition assessment of equipment with gas and solid insulation. Number of staff: -18-

High-voltage equipment and systems

Investigation of the insulating capacity of compressed gas insulations, which is mainly determined by defects, in its statistical regularity. Modeling of the breakdown process in compressed gases, also taking into account the influence of space charges in the gas space as well as on insulating material surfaces, and calculation of the breakdown voltages to be expected.

High-voltage insulations with plastics

Determination of the material properties of the insulating materials that are essential for the operational and aging behavior of plastic insulations. Determination of minimum requirements for the insulating materials. Evaluation of existing test methods. Development of suitable new test methods.

• Long-term behavior of electrical connections
• Use of alternative conductor materials
• Behavior of high-temperature insulating materials under the special conditions in motor vehicles

Electrical connections

Investigation of the decrease in connection forces and the resulting changes in connection resistance in thermally loaded high-current connections. Aim: Prediction of the lifetime of interconnections.

New operating equipment in high-voltage systems

CAD-based three-dimensional calculation of electrostatic fields. Investigation of mutual electromagnetic interferences in measuring and control equipment to ensure reliable operation.