TY - JOUR AU - AB - NordIS-22, Trondheim, Norway, June 13-15 2022 Comparison of Methods to Detect Thermomechanical Ageing of the Insulation System for Rotating High-Voltage Machines Lena Elspaß, Stephan Schlegel Hans Barnklau ¨ Institute of Electrical Power Systems and High VEM Sachsenwerk GmbH Voltage Engineering, Technische Universitat ¨ Dresden Dresden, Germany Dresden, Germany lena.elspass@tu-dresden.de Abstract Increased dynamic operation of long rotating regarding their ability to detect named ageing phenom- high-voltage machines as well as elevated operating ena. Scaled-down GVPI-manufactured specimens with temperatures lead to intensified thermomechanical stress an insulated conductor in a slot model are stressed in the insulation system of global vacuum-pressure- mechanically to replicate longitudinal thermal expansion impregnated machines. Meanwhile, the requirements and thus resulting ageing phenomena. A comparison regarding reliability of the machine and the electric of various diagnostic tools regarding their ability to insulation system remain high. Consequences of detect thermomechanical ageing is given. The results thermomechanical stress include delaminations and can be applied later on to thermomechanically-aged full- abrasion. To satisfy the high standards of longevity, scale test objects, allowing reliable diagnosis and thus reliable diagnosis of thermomechanical ageing is future-oriented development of insulation systems for essential to allow manufacturers to develop and improve dynamically-operated long rotating machines. countermeasures. TI - Comparison of Methods to Detect Thermomechanical Ageing of the Insulation System for Rotating High-Voltage Machines JF - Proceedings of the Nordic Insulation Symposium DO - 10.5324/nordis.v27i1.4570 DA - 2022-07-05 UR - https://www.deepdyve.com/lp/unpaywall/comparison-of-methods-to-detect-thermomechanical-ageing-of-the-LhMXKyaMoA DP - DeepDyve ER -